POINT-OF-SALE DISCOUNTING AND PROMOTION ANALYSIS SYSTEM AND METHOD

Abstract: A computer-implemented discounting system (10) and associated method for comparative analysis of consumer response to promotions. The discounting system includes a memory for storing information related to at least one promotion and a software module. First and second promotional entries related to promotions for a product are stored. The software module (12) receives promotional codes entered by consumers and maintains counts (20c) of the total number of times the promotion codes are received and transmits discount information for the promotions to the point-of-sale transaction device (14). There, the cost of the point-of-sale transaction is reduced by the discount amount if a product matching a transmitted product code has been purchased. The first and second counts are later retrieved and a comparative analysis of the promotions is performed.

Description: POINT-OF-SALE DISCOUNTING AND PROMOTION ANALYSIS SYSTEM AND METHOD Background of the Invention Field of the Invention The present invention generally relates to point-of-sale discounting systems and, more particularly, relates to a point-of-sale discounting system in which a discount is applied to a transaction in response to a consumer electronically providing a promotional code to the system used by the retailer to record the transaction. The present invention further relates to systems for comparative analysis of consumer response to product promotions and, more particularly, relates to a system which analyses consumer response to product promotions based upon consumer usage of promotional codes in connection with point-of-sale discounting systems in which discounts are applied to transactions in response to consumers providing promotional codes as inputs to the point-of- sale discounting systems. Description of Related Art Retailers have long relied upon the discounting of goods as a mediod to attract consumers to their establishment. For example, a retailer may reduce the price of selected goods and, using the local media, encourage consumers to visit their store by advertising the selected price reductions. Oftentimes these discounts, generally referred to as "specials", are quite substantial and cause the retailer to lose money on each sale of the discounted goods. The retailer recoups this loss from profits on other, non-discounted goods purchased by the consumer during their visit. While widely utilized, advertised specials are disliked by many retailers because of its inability to discriminate between the price-conscious and casual consumers. Specifically, the advertised price reduction will motivate the price-conscious consumer into visiting the store with the intent of purchasing the discounted items. Thus, the loss taken on the sale of the discounted items are necessary in order to receive the profit on the sale of other goods to the price-conscious consumer. The casual consumer, on the other hand, visits the store to purchase goods without intending to purchase the discounted item. Upon discovering the discounted items on the shelves of the store, the casual consumer will often decide to purchase these items. Furthermore, discounted items are sometimes purchased by casual consumers who are entirely unaware of the discount. As a result, therefore, the retailer must absorb the loss on sales of the discounted items to consumers who visit the store with or without knowledge of the discount. Coupons are often used to restrict discounts to price-conscious consumers. More specifically, in order to receive the discount on a selected item, the consumer must provide the retailer with a coupon clipped from an advertisement run in the print media. In this manner, the retailer limits the discount to those consumers sufficiently price-conscious to "clip" coupons. There are, however, a number of drawbacks to the use of coupons. First, coupons are generally limited to the print media. Thus, if the retailer relies solely on coupons to motivate price-conscious consumers to visit the store, those consumers who only use radio or television for news and information will not be reached by print advertisements. The use of coupons also lengthen the time required to complete a transaction. Specifically, after subtotaling the consumer's purchases, the cashier must then enter a discount for each coupon proffered by the consumer. To prevent the consumer from fraudulently obtaining discounts, the cashier must check to see if the coupon has expired and whether the consumer has actually purchased the item for which the discount is sought. Various ways of speeding the discounted transaction, primarily by eliminating the paper coupon, have been proposed. For example, U.S. 5,185,695 to Pruchnicki proposes that paper coupons be eliminated in favor of an automated system in which a coupon list which includes product type, validation period and discount amount is maintained in memory. When products on the coupon list are purchased, the discount is automatically deducted from the purchase price. While successfully eliminating many of the delays associated with the use of paper coupons, the solution proposed by Pruchnicki would be disfavored by many retailers in that the discount is awarded to casual consumers who purchase the goods when visiting the store without prior knowledge of the discount. It has also been proposed that retailers maintain an electronic display of coupons valid for use in their store. A consumer may select coupons from the display and, if the corresponding items are purchased, the consumer is credited in accordance with the terms of the coupons. In Re. 34,915 to Nichtberger et al., the consumer presents a card which enables the cashier to retrieve the consumer's coupon selections from a central unit. In 5,420,606 to Begum et al. , the coupon selections are maintained in a customer display device which is presented to the cashier at the checkout counter. While Nichtberger et al. and Begum et al. require some price consciousness in that the consumer must devote time into selecting coupons for use from an electronic display, they do not overcome the aforenoted deficiency of Pruchnicki in that the discounts are not used to attract the consumer to the store. Instead, the discounts are made available to all consumers who visit the store and select the coupons. Several electronic coupon storage and redemption systems which are clearly directed to the price-conscious consumer have been disclosed in the art. U.S. 5,192,854 to Counts is directed to a system which enables consumers to electronically store and redeem coupons. Data stored in the coupon scanner is compared to the products being purchased and, if matching, the consumer is credited with the value of the coupon and the coupon data is removed from the scanner. U.S. 5,380,991 to Valencia et al. discloses the use of a so-called "smart" card capable of electronically carrying a number of paperless electronic coupons. After the consumer's purchases are scanned and totaled, the card is inserted into a master reader/ writer which retrieves potential discounting infoπnation from the card. Neither of these systems, however, directly motivate a consumer to, in response to a specific advertised promotion, visit a particular store to take advantage of the promotion. Counts merely enables a consumer to electronically collect coupons of all types while Valencia et al. is designed to encourage repeat patronage of a store and/or product. It should be readily appreciated that the relative success of different techniques commonly utilized by retailers to attract consumers to their establishment may vary dramatically. More specifically, the demographical differences which exist between the audiences of the various media, for example, print, radio and television, as well as the audiences within each of these media, for example, the emergence of cable-based television networks carefully tailored for a specific audience, make it absolutely necessary that an advertising campaign be carefully crafted such that it will successfully reach its target audience. Traditionally, industry has relied upon consumer surveys to analyze surveys of advertising campaigns. While useful, the use of consumer surveys is often quite expensive. Furthermore, since consumer surveys are often directed towards potential, rather than actual, consumers, the results of such surveys are often speculative. It may be readily seen from the foregoing that it would be desirable to provide a point-of-sale discounting system in which the consumer uses publicly distributed promotional codes while the sales transaction is on-going to automatically receive discounts on purchased goods. It may be further seen from the foregoing that it would be desirable to provide a system which analyses consumer response to product promotions based upon consumer usage of promotional codes in connection with point-of-sale discounting systems in which the consumer uses publicly distributed promotional codes while the sales transaction is on-going to automatically receive discounts on purchased goods. It is, therefore, the object of the invention to provide such a point-of-sale discounting system and the further object of the invention to provide such a system for analyzing consumer response to product promotions. SUMMARY OF THE INVENTION In one embodiment, the present invention is directed to a computer-implemented discounting system which accepts promotional codes entered as a series of characters. A software module receives the promotional codes and, using information related to at least one promotion stored in a memory subsystem coupled thereto, determines if the entered promotional codes relate to one of the promotions. If so, discount information is transmitted to an associated point-of-sale transaction device. In one aspect thereof, the information stored in the memory subsystem includes, for each one of the promotions, a promotional code, a product code and a discount amount. The software module compares the received promotional code with the promotional codes stored in the memory subsystem and, if the received promotional code matches one of the promotional codes stored in the memory subsystem, transfers the product code and the discount amount corresponding to the matched promotional code to the point-of-sale transactional device. In another aspect thereof, the information stored in the memory subsystem includes, for each one of the promotions, a promotion period. In this aspect, the software module transfers the product code and discount amount only if it determines that the received promotional code matching one of the promotional codes was received during the promotion period. In yet another aspect thereof, the information stored in the memory subsystem includes, for each one of the promotions, a promotional code count of a total number of times that the promotional code has been received and a maximum number of promotional codes. In this aspect, the software module transfers the product code and discount amount only if it determines that promotional code count does not exceed the maximum number of promotional codes. In another embodiment, the present invention is of a computer-implemented discounting system suitable for use in conjunction with a point-of-sale transaction device. In one configuration thereof, the discounting system includes a keypad for accepting promotional codes entered by consumers. In an alternate configuration thereof, the discounting system includes a microphone for accepting promotional codes audiblilized by consumers and means for converting the audibilized promotional codes into corresponding digital messages. In either of these configurations, the discounting system further includes a memory subsystem for storing information related to at least one promotion and a software module coupled to the memory subsystem and either the keypad or converting means. The software module receives the promotional codes entered by consumers or the digital messages converted from audibilized promotional codes and determines if the promotional codes relate to the promotions for which information is stored in the memory subsystem. If so, the software module transmits discount information for the promotions related to the entered promotional codes to the point-of-sale transaction device. In certain aspects thereof, the information stored in the memory subsystem includes a promotional code, a product code and a discount amount for each promotion stored in the memory subsystem. The software module compares the received promotional codes with the promotional codes stored in the memory subsystem and, if the received promotional codes match one of the promotional codes stored in the memory subsystem, the software module transfers the product code and the discount amount corresponding to the matched promotional code to the point-of-sale transactional device. In other aspects thereof, the information stored in the memory subsystem further includes a promotion period for each promotion. If the received promotional code matches one of die promotional codes stored in the memory subsystem, the software module determines, if the received promotional code was received during the promotion period corresponding to the matching promotional code. If so, the product code discount amount corresponding to the matched promotional code are transferred to the point-of-sale transactional device. Preferably, the promotion period includes a promotion start time/date and a promotion end time/date for each of the promotions. The product code and discount amount corresponding to the matched promotional code would are transferred to the point-of- sale transactional system if the received promotional code was received after the promotion start time/date but before the promotion end time/date. In still another aspect thereof, the information related to promotions stored in the memory subsystem include a promotional code count of a total number of times that the promotional code has been received and a maximum number of promotional codes. The product code and discount amount corresponding to the matched promotional code are transferred to the point-of-sale transactional system if the promotional code count does not exceed the maximum number of promotional codes. In certain further aspects thereof, the software module which performs certain of the aforementioned tasks is executed by a processor subsystem coupled between the keypad and the memory subsystem. Further, the keypad may include a plurality of keys, each representing an alpha-numeric character such that each promotional codes may be comprised of a different series of alpha-numeric characters generated by depressing selected ones of the keys and/or a control key which, when depressed, indicates that the series of alpha-numeric characters generated by depressing selected ones of the plurality of keys thereafter, is a promotional code. In yet another embodiment, the present invention is of a point-of-sale transactional system which includes a transactional device for performing point-of-sale transactions, a consumer interface for accepting codes entered by consumers and a discounting device coupled to d e consumer interface and die transactional device. The discounting device includes a first software module which receives codes from the consumer interface, determines if the received codes are promotional codes and transmits discount information, for each determined promotional code, to die transactional device. The transactional device includes a second software module which performs the point-of-sale transaction using the discount information received from die discounting device. In one aspect thereof, the transactional device includes means for activating the discounting device upon initiation of a data entry portion of a point-of-sale transaction and deactivating the discounting device upon completion of die data entry portion of the point-of- sale transaction such that the discounting device is capable of accepting codes from consumers only when activated. In another aspect thereof, the discounting device includes a memory subsystem in which at least one promotional code and corresponding discount amounts are stored. In this aspect, the first software module compares the received codes witii the promotional codes stored in the memory subsystem and transmits, to the second software module, the discount amount corresponding to a first promotional code if die received code matches the first promotional code. In an alternate aspect thereof, the discounting device includes a memory subsystem in which at least one promotional code, together with corresponding promotion periods and discount amounts are stored. In this aspect, the first software module compares die received codes witii the promotional codes stored in die memory subsystem and transmits, to the second software module, die discount amount corresponding to a first promotional code if die received code matches die first promotional code and was received within the promotion period. In another alternate aspect thereof, the discounting device includes a memory subsystem in which at least one promotional code, together with corresponding promotion periods, product codes and discount amounts are stored. In this aspect, the first software module compares me received codes widi the promotional codes stored in die memory subsystem and transmits, to the second software module, me product code and d e discount amount corresponding to a first promotional code if die received code matches die first promotional code and was received within die promotion period. The second software module reduces die cost of the point-of-sale transaction by die discount amount if an item having the product code transmitted to the second software module was purchased during the point-of-sale transaction. In still anodier alternate aspect thereof, the discounting device includes a memory subsystem in which at least one promotional code, together with corresponding promotion periods, product codes, discount amounts, promotional code counts and maximum number of promotional codes are stored. In diis aspect, die first software module compares me received codes with the promotional codes stored in me memory subsystem and transmits, to the second software module, the product code and die discount amount corresponding to a first promotional code if the received code matches me first promotional code, was received witiiin the promotion period and the promotional code count does not exceed the maximum number of promotional codes. The second software module reduces die cost of die point-of- sale transaction by the discount amount if an item having the product code transmitted to the second software module was purchased during die point-of-sale transaction. In still another embodiment, die present invention is of a computer-implemented method of discounting an on-going point-of-sale transaction. A series of promotional codes and a corresponding series of promotional information entries are stored in a memory subsystem of a computer system. A promotional code, entered by a consumer on a keypad coupled to die computer system, is received. The received promotional code is compared to me series of promotional codes stored in the memory subsystem and, if die received promotional code matches one of me series of stored promotional codes, me promotional information entry corresponding to die matched promotional code is transmitted to a point-of- sale discounting device. There, the cost of the point-of-sale transaction is discounted using the transmitted promotional information. In one aspect, the transmitted promotional information includes a product code and a discount amount. Here, a product code for each product to be purchased as part of the point-of-sale transaction is compared to me transmitted product code and die cost of the point- of-sale transaction is reduced by d e discount amount if the transmitted product code matches me product code for one of the products to be purchased. In anodier aspect, the promotional information entries include a promotion period. Here, die product code and discount amount are transmitted to the point-of-sale discounting device only if die matching promotional code was received widiin die corresponding promotion period. In a further aspect thereof, d e promotion period is comprised of a promotion start time/date and a promotion end time/date. If so, the product code and discount amount are transmitted to me point-of-sale discounting device only if die matching promotional code was received after die promotion start time/date and before the promotion end time/date. In still ano ier aspect, the promotional information entries include a promotional code count and a maximum number of promotional codes. Each time a matching promotional code is received, the corresponding promotional code count is incremented. The product code and discount amount corresponding to die matching promotional code are transmitted to the point- of-sale discounting device only if die promotional code count does not exceed me maximum number of promotional codes. In yet anodier embodiment, ie present invention is of a method for analyzing consumer response to product promotions which provide discounts during point-of-sale transactions. A series of at least two promotional codes and a corresponding series of at least two promotional information entries are stored in a memory subsystem of a computer system. Each one of die series of promotional codes/promotional information entries relate to separate promotions for a product. Consumers responding to a first promotion for a product transmit the first promotional code to me computer system via a user interface coupled to me computer system to receive a first discount while consumers responding to a second promotion for the product transmit the second promotional code to me computer system, again via me user interface. The total number of times the first and second promotional codes are respectively transmitted to the computer system are determined and dien compared. In one aspect diereof , a first count of die total number of times the first one of the promotional codes is received by me computer system and a second count of die total number of times the second one of d e promotional codes is received by the computer system are maintained at first and second locations widiin the memory subsystem. In anodier aspect thereof, each promotional code received from the user interface is compared to die series of promotional codes stored in die memory subsystem. If me received promotional code matches die first one of me series of stored promotional codes, die first count is incremented. If, however, the received promotional code matches the second one of die series of stored promotional codes, me second count is incremented by one. In yet another aspect thereof, die first and second counts are retrieved from the memory subsystem and compared to determine relative consumer response to the first and second promotions. In anodier aspect thereof, each of die promotional information entries stored in die memory subsystem may comprise a promotion period. Preferably, each promotion period is comprised of a promotion start time/date and a promotion end time/date. In a further aspect diereof, a determination is made as to whedier the received promotional code matching one of the series of stored promotional codes was received widiin die corresponding promotion period, preferably by determining if me received promotional code was received after die promotion start time/date but before the promotion end time/date, and incrementing the count corresponding to the received promotional code only if die received promotional code was received widiin die corresponding promotion period. In still anodier embodiment, die present invention is of a method for comparative analysis of consumer response to product promotions which provide discounts during point- of-sale transactions. First and second promotional entries, respectively related to first and second promotions for a product are stored in a memory subsystem of a computer system. The first promotional entry is comprised of a first promotional code and a first discount while the second promotional entry is comprised of a second promotional code and a second discount. A first count of die total number of times the first promotional code is received by die computer system is maintained at a first location in the memory subsystem while a second count of die total number of times the second promotional code is received by me computer system is maintained at a second location in die memory subsystem. Each time a consumer enters a promotional code on a keypad coupled to die computer system, the entered promotional code is compared to die first and second promotional codes stored in die memory subsystem. If me entered promotional code matches the first promotional code, d e first count stored in me memory subsystem is incremented by one and die first discount amount is transmitted to a point-of-sale transaction device coupled to die computer system. If, however, the entered promotional code matches the second promotional code, die second count stored in die memory subsystem is incremented by one and die second discount amount is transmitted to die point-of-sale transaction device. The first and second counts are later retrieved from the memory subsystem so that a comparative analysis of consumer response to die first and second to promotions for the product may be performed by comparing the first count to die second count. In one aspect diereof, each of the promotional information entries stored in die memory subsystem may comprise a promotion period. Preferably, each promotion period is comprised of a promotion start time/date and a promotion end time/date. In a further aspect thereof, a determination is made as to whether the received promotional code matching one of the series of stored promotional codes was received within the corresponding promotion period, preferably by determining if me received promotional code was received after die promotion start time/date but before me promotion end time/date, and incrementing me count corresponding to die received promotional code only if die received promotional code was received widiin die corresponding promotion period. BRIEF DESCRIPTION OF THE DRAWINGS The present invention may be better understood, and its numerous objects, features and advantages will become apparent to mose skilled in the art by reference to the accompanying drawing, in which: FIG. 1 is a block diagram of a software-based, consumer-provided promotional code actuatable point-of-sale discounting system constructed in accordance wi i die teachings of the present invention and configured to apply discounts to transactions in response to consumers providing promotional codes and to analyze consumer response to advertisements based upon consumer usage of promotional codes; FIG. 2 is a block diagram of a promotional code suitable for use in conjunction witii the software-based promotional code actuatable point-of-sale discounting system of FIG. 1 ; FIG. 3 is a block diagram of a computer system in which the software-based, consumer-provided promotional code actuatable point-of-sale discounting system of FIG. 1 resides; FIG. 4 is top view of a point-of-sale transactional system which incorporates the consumer-provided promotional code actuatable point-of-sale discounting system of FIGS. 1 and 3; FIG. 5 is a flow chart of a method of entering valid promotional codes into the consumer-provided promotional code actuatable point-of-sale discounting system of FIGS. 1 and 3; and FIG. 6 is a flow chart of a method of providing point-of-sale discounts to consumers entering valid promotional codes into the consumer-provided promotional code actuatable point-of-sale discounting system and a method of analyzing consumer response to advertisements based upon consumer usage of promotional codes. DETAD ED DESCRD7TION Referring first to Fig. 1, a software-based, consumer-provided promotional code actuatable point-of-sale discounting system 10 will now be described in greater detail. The software-based point-of-sale discounting system 10 includes a software module 12 executable by a processor subsystem (not shown in FIG. 1) of a computer. In alternate embodiments of the invention, it is contemplated that d e processor subsystem in which the software module 12 resides may be part of a human operated, point-of-sale transactional system, for example, a stand-alone electronic cash register, also referred to as an "ECR", operated by die retailer and having a consumer interface incorporated tiierewith, a human operated, promotional discounting device operated by the consumer and coupled to a point-of-sale transactional system, a computer system networked to a series of the promotional discounting devices and/or point-of-sale transactional systems, or an automated transactional system such as a vending machine. As will be more fully described below, die software modtde 12 interacts witii various software and/or hardware devices to provide discounts to consumers who: (1) purchase a particular product; and (2) provide a valid promotional code which corresponds to the purchased product. The point-of-sale transaction for which die software module 12 provides discount information is handled by software module 14. The software module 14 is point-of-sale transaction software which receives information regarding die transaction, processes the information to determine die cost of die transaction and displays die total cost of the transaction. The point-of-sale transactional software is executable by a processor subsystem (not shown in FIG. 1) of an electronic cash register or other point-of-sale transactional system operated by a retailer or of a computer system networked to each of the electronic cash register or other point-of-sale transactional device operated by the retailer. While the embodiment of me invention disclosed herein includes first and second software modules 12 and 14, executable by respective processor subsystems 23, 43 and coupled to respective memory subsystems 24, 22, it should be clearly understood that the first and second software modules 12 and 14 may be incorporated into a single software module coupled to both the transactional interface 14 and the promotional interface 16. Such an embodiment would also require only a single processor subsystem to execute the combined software module and a single memory subsystem capable of holding the requisite promotional and transactional information. The point-of-sale discounting system 10 provides discounts to consumers providing promotional codes thereto in the following manner. A transaction is initiated by transmitting, via transactional interface 16, information regarding the transaction to the software module 14. Typically, a transaction is initiated by die cashier transmitting, via a keypad (not shown in FIG. 1) or other device forming part of the transactional interface 16, a message to the software module 14 indicating that a new transaction is to be initiated. Upon receiving a signal indicating that a new transaction has been initiated, d e software module 14 notifies the software module 12 to await promotional codes via the promotional interface 18. In response, the software module 12 activates die promotional interface 18. In alternate embodiments diereof, the software module 12 may activate the promotional interface 18 by powering-up the promotional interface 18, by enabling a previously powered-up promotional interface 18 to transmit signals to the software module 12 or by switching from a first mode of operation in which the software module 12 ignores any signals received from the promotional interface 18 into a second mode of operation in which die software module 12 processes signals received from the promotional interface 18. Thereafter, the cashier transmits, again via the transactional interface 16, a list of items to be purchased by the consumer. For example, the cashier may transmit the list of items to be purchased by die consumer by passing a product code, for example, a universal product code (or "UPC"), printed on each item to be purchased, over an optical scanner included as part of the transactional interface 16. Alternately, the cashier may manually input a stock keeping unit (or "SKU") code for each item to be purchased using the keypad. To compile a summary of the transaction, the software module 14 retrieves a price for each item identified by die transactional interface 16 as being purchased by die consumer item to be used in compiling a summary of the transaction. For example, pricing information on items offered for sale may be maintained in a first region 17a of a memory subsystem 22 coupled to the electronic cash register in which the software module 14 resides. In alternate embodiments of the invention, die memory subsystem 22 may reside widiin the electronic cash register or within a network device accessible by plural electronic cash registers. Using the retrieved pricing information, the software module 14 compiles interim transaction infoπnation in a second region 17b of the memory subsystem 22. While the information included in me interim transaction information may be readily varied without departing from the scope of d e present invention, typically, die interim transaction information will include a list of items purchased, the cost of each item and die total cost of the transaction. Typically, each item to be purchased is listed by its product code. At the completion of the data entry portion of the transaction, for example, when the cashier has scanned all of die items to be purchased, die cashier completes die transaction, typically by transmitting a message to the software module 14 via the transaction interface 16, for example, the keypad used to notify the software module 14 of the initiation of the transaction, that the transaction is complete. In response tiiereto, the software module 14 notifies die software module 12 to no longer await promotional codes via die promotional interface 18. In response, the software module 12 deactivates die promotional interface 18. In alternate embodiments diereof, the software module 12 may deactivate die promotional interface 18 by powering-down the promotional interface 18, by disabling the ability of the promotional interface 18 to transmit signals to the software module 12 or by switching from the second mode of operation in which the software module 12 processes signals received from the promotional interface into the first mode of operation in which the software module 12 ignores any signals received from the promotional interface 18. If, at any time during die data entry portion of the transaction, the software module 12 receives one or more promotional codes via the promotional interface 18, the software module 12 will determine if the received promotional codes are valid. Specifically, for each promotional code received, the software module 12 compares the received promotional code to valid promotional code information stored in a first region 20a of a memory subsystem 24 coupled to die software module 12. The valid promotional code information stored in the first region 20a is comprised of a series of N valid promotional code entries, each having a promotion period and a discount amount appended tiiereto. Refeπing momentarily to FIG. 2, a typical valid promotional code entry 20-N stored in die first region 20a of die memory subsystem 24 will now be described in greater detail. The valid promotional code entry 20-N includes five fields, a promotional code field 20-N-l, a promotion start time/date field 20-N-2, a promotion end time/date field 20-N-3, a product code field 20-N-4 and a discount amount field 20-N-5. Refeπing now, in combination, to FIGS. 1-2, upon receipt of a promotional code via die promotional interface 18, the software module 12 compares the received promotional code to die promotional code held in the promotional code field 20-N-l of each of die valid promotional code entries 20-N stored in die first region 20a of the memory subsystem 24. For example, the received code may be a 3-digit number such as "123". If one of the promotional codes held in die promotional code field 20-N-l of one of die valid promotional code entries 20-N matches die received promotional code, the software module 12 determines that a promotional code has been received. The software module 12 tiien determines if the promotional code is valid by checking to see if the time at which the promotional code was received is between me promotion start and promotion end times respectively held in die promotion start time/date field 20-N-2 and die promotion end time/date field 20-N-3 of the valid promotional code entry 20-N which includes the matching promotional code in die promotional code field 20-N-l . For example, me promotion start time held in die promotion start time/date field 20-N-2 may be 12:00 AM on June 1 , 1996 and die promotion end time held in die promotion end time/date field 20-N-4 may be 11:59 PM on June 30, 1996. If e software module 12 determines that the received promotional code matching the promotional code held in d e promotional code field 20-N-l of one of die valid promotional code entries 20-N was received between die promotion start time and d e promotion end time respectively held in the promotion start time/date field 20- N-2 and the promotion end time/date field 20-N-3 of die valid promotional code entry 20-N which includes die matching promotional code in me promotional code field 20-N-l, d e received promotional code is deemed valid. In one embodiment of die invention, validity of die received promotional code is further controlled by a determination as to the number of times that particular promotional code has been received by die software module 12. In this embodiment, for each valid promotional code stored in die first region 20a of the memory subsystem 24, a maximum number of uses of e promotional code is stored in a second region 20b of the memory subsystem 24 and a total number of uses of die promotional code is stored in a third region 20c of die memory subsystem 24. Alternately, the maximum number of uses of a promotional code and die total number of uses of me promotional code may be placed in sixth and seventh fields of each promotional code entry 20-N stored in the first region 20a of die memory subsystem 24. As will be more fully described below, in mis embodiment of die invention, an otherwise valid promotional code received by the software module 12 will be treated as an invalid promotional code if die total number of uses of the promotional code is equal to die maximum number of uses of the promotional code. Each time the software module 12 receives a valid promotional code, die software module 12 transfers the product code and die discount amount respectively held in the product code field 20-N-4 and die discount amount field 20-N-5 of the valid promotional code entry 20-N which includes the matching promotional code in die promotional code field 20-N- 1 , to die software module 14. In turn, the software module 14 holds die product code and corresponding discount amount received from the software module 12 as an interim discounting information entry in a third region 17c of die memory subsystem 22. Also at the completion of the data entry portion of the transaction, the software module 14 will determine the final cost of the transaction and output the determined total cost of the transaction, for example, via a display included as part of die transactional interface 16. More specifically, the software module 14 compares the product code for each item on me list of items to be purchased which is included as part of die interim transaction information held in the second region 17b of die memory subsystem 22 to the product codes included as part of die interim discounting information held in die tiiird region 17c of the memory subsystem 22. For each match of a product code held in the second region 17b to a product code held in die tiiird region 17c, die software module 14 subtracts the corresponding discount amount held in die tiiird region 17c from the total cost of the transaction held in me second region 17b to determine the final cost of the transaction. It should be clearly understood tiiat the present invention is suitable for use in a variety of types of consumer transactions. FIGS. 3-6 describe, in detail, die invention in a typical retail environment, i.e., a grocery store, fast food restaurant or other business establishment where a consumer purchases goods or services from a retailer. It is specifically contemplated, however, tiiat the present invention is equally suitable for use in other commercial settings such as die purchase of goods from a vending machine or ottier automated sales device. While certain automated sales devices are equipped to handle transactions which involve the purchase of plural items, such devices are commonly configured to exclusively handle die sale of single items. Accordingly, die foregoing example is directed to a vending machine equipped to handle transactions comprised of die sales of a single item. For example, a vending machine may be provided witii a keypad or otiier device which functions as the promotional interface 18 used by die consumer to transmit promotional codes to die software module 12. The vending machine would further include, as its transactional interface 16, the controls used to select die item to be purchased and, as tiiat part of the transactional interface 16 used to indicate, to the software module 14, die initiation of a transaction, a coin slot and/or bill acceptor used to deposit cash in the vending machine and/or a magnetic reader used to provide the software module 14 witii credit or debit card information. Upon detecting die deposit of cash or die receipt of credit/debit card information, the software module 14 notifies the software module 12 to await a promotional code via die promotional interface 18. In response, the software module 12 activates the promotional interface 18. Shortly thereafter, the consumer selects, again via the transactional interface 18, an item to be purchased. For example, the consumer may depress a control button which selects a particular brand of soda for purchase. Upon selection of an item for purchase, die software module 14 transmits a message to the software module 12 tiiat the transaction is complete. In response thereto, die software module 12 deactivates me promotional interface 18. If the software module 12 received a promotional code via die promotional interface 18 while it was activated, die software module 12 then determines if die received promotional code matches a promotional code stored in die memory subsystem 24 and if the received promotional code is deemed valid. Each time the software module 12 receives a valid promotional code, die software module 12 transfers the product code and the discount amount to die software module 14 where it is held in die memory subsystem 22. The software module 14 tiien compares the product code for the item selected for purchase to the product code received from the software module 12. If die two match, the software module 14 would refund, to the consumer, the discount amount received from the software module 12. For example, the software module 14 would cause a change return included as part of die transaction interface 18 to dispense an amount, in cash, equal to die discount amount received from the software module 14. Referring next to FIG. 3, a computer system 21 in which the software-based, consumer-provided promotional code actuatable point-of-sale discounting system 10 resides may now be seen. The computer system 21 includes a processor subsystem 23 capable of executing the software module 12 and a memory subsystem 24 coupled together by a main system bus 25 for bi-directional exchanges of address, data and control signals. Residing on the system bus are a series of devices which include a real-time clock 26, a keypad 27 or otiier device such a touch screen with which a series of characters may be entered, a display 28, a microphone 29 and a printer 31. The real-time clock is used to determine the time at which a promotional code is received from the promotional interface 18. The keypad 27, display 28 and microphone 29 are first, second and tiiird portions of the promotional interface 18. The keypad 27 is die prefeπed manner by which consumers transmit promotional codes to the processor subsystem 23. Of course, in certain circumstances, it may be desirable for the cashier or other representative of the retailer transmit promotional codes to die consumer, for example, when, due to a faulty recollection, the consumer incorrectly enters the promotional code. Preferably, the keypad 27 includes a promotional code character key for each numerical character 0 through 9 such that a consumer can transmit a numerical promotional code, for example, die promotional code "123" by depressing, in sequence the "1 ", "2" and "3" keys. The keypad 27 should also include a first control key, for example, the "*" key, the depression of which indicates the start of a promotional code. In alternate aspects thereof, die end of a promotional code may be indicated by a second depression of the first control key, a first depression of a second control key, for example, the "#" key, or by a timeout, i.e. , the elapse of a preselected period of time since the last depression of a promotional code character key. In one aspect, the keypad should also include a promotional code character key for each alphabetical character A through Z, as well as a space bar such that a consumer can transmit a alpha or alphanumerical promotional code such as "XYZ IS Al WITH ME". In one embodiment of die invention, die computer system 21 further includes die microphone 29, again for transmitting promotional codes to die processor subsystem 23. In this embodiment, the consumer would audibilize the promotional code such that it can be detected by the microphone 29. Preferably, mis embodiment of the invention would include appropriate recognition and translation circuitry for recognizing selected audibilizations, for example, the audibilized numbers "1 ", "2" and "3" spoken in sequence and translation circuitry for converting the recognized audibilization into a digital message suitable for transmission to the processor subsystem 23. As will be more fully described below, the printer 31 is most commonly used during analysis of consumer response to advertisements which provide die promotional codes used to generate discounts when purchasing items. The processor subsystem 23 transmits messages containing instructions or feedback to die display 28 where they may be viewed by die consumer using the promotional interface 18. For example, when the promotional interface 18 is activated, die processor subsystem 23 may cause the display 28 to display the message "ENTER PROMOTIONAL CODE NOW! " . Preferably, the display 28 is a liquid crystal diode (or "LCD") type display. Referring next to FIG. 4, a point-of-sale transactional system 30 which incorporates an embodiment of die software-based point-of-sale discounting system 10 subject of the present invention will now be described in greater detail. In this embodiment, the point-of- sale transactional system 30 is installed in a retail store having multiple stations 32, separated by divider walls 34, each staffed by a cashier or other employee of the retailer. Each station 32 includes a first platform 36 on which items to be purchased are placed and a second platform 38 to be used by die consumer during the transaction. Mounted widiin the first platform 36 such that it is visible dirough an opening therein is an optical scanner 40. Preferably, the optical scanner 40, which is a portion of the transactional interface 16 of FIG. 1, is positioned such tiiat items placed on die first platform 36 by the consumer may be passed over die optical scanner 40 such that the UPC code on each item is read by the optical scanner 40 as the product code used to identify die items to be purchased. In die embodiment of the invention illustrated herein, the point-of-sale transactional system 30 includes a series of electronic cash registers 42, each located at a respective station 32, networked to a computer system 46. Each electronic cash register 42 includes a processor subsystem 43 capable of executing the software module 14 and a memory subsystem 22 (not shown in FIG. 4) for holding die interim transaction information 17b. The processor subsystem 23 which executes the software module 12, die memory subsystem 24 which maintains the valid promotional codes and die real-time clock 26 used to determine when promotional code are located widiin die computer system 46, the printer 31 is coupled to an output port of the computer system 46, while the keypad 27, die display 28 and the microphone/translation circuitry are located widiin die consumer terminal 48. The flow of information and/or control signals widiin the point-of-sale transactional system 30 is as follows. The optical scanner 40 is linked to die electronic cash register such that information regarding die items to be purchased by die consumer may be transmitted from the optical scanner 40 to the electronic cash register 42. The electronic cash register 42 is linked to a consumer terminal 48 so that, upon initiation of a point-of-sale transaction, the electronic cash register 42 can activate the consumer terminal 48. A bi-directional link between the consumer terminal 48 and die computer system 46 is provided so that promotional codes input die point-of-sale transactional system 30 by the consumer using the consumer terminal 48 may be transmitted to die computer system 46 for validation while advisory messages may be transmitted from die computer system 46 to the consumer terminal 48 for display. Finally, the computer system 46 is linked to the ECR so that, if a received promotional code is validated, a corresponding product code and discount amount may be transmitted from the computer system 46 to the electronic cash register 42 where the cost of die purchased is reduced by the discount amount if the product identified by die product code has been purchased. In an alternate embodiment of the invention not illustrated herein, both the software module 12 and die valid promotional codes may be maintained widiin the electronic cash register 43. In this embodiment, the software module 12 would be executed by die processor subsystem 43, the valid promotional codes would be stored in the memory subsystem 22 and the point-of-sale transactional system 30 would operate as a stand-alone system which includes botii a transactional device for performing point-of-sale transactions and a discounting device for transmitting discount information to the transactional device. In anodier embodiment of die invention, both the software module 12 and die valid promotional codes may be maintained within die consumer terminal 48 by incorporating the computer system 21 therein. Referring next to FIG. 5, the storage of promotional codes within the memory subsystem 24 will now be described in greater detail. The method starts at step 50 and, proceeding to step 51, a determination is made as to whetiier information related to a promotional code should be entered into die first region 20a of the memory subsystem 24 as a promotional code entry 20-N. If information related to a promotional code is to be entered into die first region 20a, the method proceeds to step 52 where the promotional code is entered into the promotional code field 20-N-l of the promotional code entry 20-N. Proceeding to step 54, the day and time at which the promotion starts is entered in the start time/date field 20-N-2 and, at step 56, die date and time at which the promotion ends is entered in the end time/date field 20-N-3. Continuing on to step 58, a product code for die product for which die promotion is being run is entered in d e product code field 20-N-4 and, at step 59, die discount amount to be provided to consumers purchasing the product during the promotion period is entered in die discount field 20-N-5. At step 60, die maximum number of times that die discount amount stored in the discount field 20-N-5 will be given to consumers is entered in the second region 20b of die memory subsystem and a pointer (not shown) from the promotional code entry 20-N to the maximum number of times that the discount amount will be given to consumers is constructed. Proceeding to step 61, die promotional code count, i.e. , die total number of times that die discount amount stored in die discount field 20-N-5 is provided to a consumer providing the promotional code, maintained in the third region 20c of the memory subsystem 24 is set to zero. The method men returns to step 51 where a determination is made as to whetiier information related to a next promotional code is to be entered into d e memory subsystem 24. If so, the metiiod returns to step 52 where entry of information related to a next promotional code begins. If all promotions have been entered, die method ends at step 62. In one embodiment of die invention, the promotional code entries 20-N may include multiple entries having the same promotional code entered in die promotional code field 20- N-l but different promotional information entered in die otiier fields, for example, die product code field 20-N-4 and/or the discount field 20-N-5. By doing so, a discount for any member of a product family may be provided by use of a single promotional code. Generally, each promotional code stored widiin the memory subsystem 24 will be associated witii a single product code. However, as will be more fully described below, in one, particularly novel embodiment of me invention, multiple promotional codes will be associated witii a common product code. For example, a first promotional code entered into the memory subsystem 24 as promotional code entry 20-1 may be the promotional code " 123 " . The product code entered in die product code field 20-1-4 may be the UPC code for product "XYZ". Next, a second promotional code entered into the memory subsystem 24 as promotional code entry 20-2 may be the promotional code "124" The product code entered in die product code field 20-2-4 will again be the promotional code "124". In tiiis manner, the point-of-sale discounting system 10 has been configured tiiat two different promotional codes will produce a discount for the same product. Referring next to FIG. 6, the method of providing point-of-sale discounts to consumers providing a promotional code to a discounting system in accordance witii the teachings of the present invention will now be described in greater detail. The method commences at step 70 and, at step 72, a cashier or otiier representative of a retailer initiates a point-of-sale transaction. For example, a cashier operating an electronic cash register having a keypad would depress a key or combination of keys to transmit a signal to the processor of the electronic cash register of the start of a new transaction. Proceeding to step 74, upon receipt of a signal indicating die start of a new transaction, in addition to die tasks performed by die processor subsystem 43 in connection with the initiation of a new transaction, the processor subsystem 43 would initiate activation of the consumer terminal 48, for example, by transmitting an "enable consumer terminal" signal to the processor subsystem 23. In response, the processor subsystem 23 would activate the consumer terminal 48, for example, by enabling the keypad 27 and/or otiier promotional interface devices included as part of die consumer terminal 48 and await receipt of one or more promotional codes from the consumer terminal 48. In addition to enabling the keypad 27 such tiiat electronic representations of the alphanumeric characters depressed thereon will be transmitted to the processor subsystem 23 coupled thereto, the processor subsystem 23 may also transmit a visual and/or audible indicator that it will now accept promotional codes. For example, the processor subsystem 23 may generate a message such as "TO SAVE MONEY, ENTER CODE NOW!" on the display 28. In various alternate embodiments of the invention, promotional codes may be provided to the processor subsystem 23 using input devices other than the keypad 27. For example, die microphone 29 may be used to transmit promotional codes to die processor subsystem 23. Of course, rather than generating signals, interpretable by the processor subsystem 23, as to which keys on the keypad 27 have been depressed, the microphone 29 would also circuitry which compares detected audible sounds to a series of recognizable audible sounds and translates detected audible sounds matching a previously stored recognizable sound into an electrical signal for transmission to the processor subsystem 23. Preferably, each promotional code is comprised of tiiree or four alphanumeric characters. For example, "123" may be one such promotional code suitable for entry on the keypad 27. Even more preferably, the promotional code should be preceded by a header which indicates tiiat a promotional code follows. For example, "*" would a header code suitable for entry on the keypad 27. Having activated die consumer terminal 48, the method proceeds to step 76 where the cashier begins entering selected information related to items to be purchased by the consumer into the electronic cash register 42. For example, the cashier may transmit the UPC code of each item to be purchased to the electronic cash register 42 by passing each item over the scanner 40. While the transaction is on-going, the software module 12 awaits receipt of one or more promotional codes from the consumer terminal 48 at step 78. If a promotional code is transmitted from the consumer terminal 48 to the software module 12, for example, by the consumer entering a promotional code using die keypad 27, die mediod proceeds to step 80 where the software module 12 determines if the received promotional code is valid. A received promotional code is characterized as valid if die received promotional code matches a promotional code stored in the memory subsystem 24 and was received during die promotional period. Thus, upon receipt of a promotional code from the consumer terminal 48, the software module 12 compares the received promotional code to the promotional codes stored in die promotional code fields 20-N-l. If the received promotional code matches one of die promotional codes stored in the promotional code fields 20-N-l, die software module 12 then determines if the promotional code was received after the time/date stored in die promotion start time/date field 20-N-2 but before die time/date stored in die promotion end time/date field 20-N-3 coπesponding to the promotional code field 20-N-l previously determined as matching the received promotional code. Continuing on to step 82, if the received promotional code fails to match any of the promotional codes stored in the promotional code fields 20-N-l or if die received promotional code matches one of the promotional codes stored in d e promotional code fields 20-N-l but was received eitiier before the time/date contained in the start time/date field 20-N-2 corresponding to the promotional code field 20-N-l matching the received promotional code or after the time/date contained in die end time/date field 20-N-3 coπesponding to die promotional code field 20-N- 1 matching the received promotional code, the received promotional code is rejected by die software module 12 as invalid. The software module 12 issues a rejection message, for example, "PROMOTIONAL CODE NOT VALID" to the display 28 and discards the received promotional code. The method tiien returns to step 78 to await entry of a next promotional code at the consumer terminal 48. Returning to step 80, if, however, die received promotional code matches one of the promotional codes stored in die promotional code fields 20-N-l and the received promotional code was received after the time/date contained in the start time/date field 20-N-2 corresponding to the promotional code field 20-N-l matching the received promotional code and before the time/date contained in the end time/date field 20-N-3 corresponding to die promotional code field 20-N-l matching die received promotional code, die method proceeds to step 81 where the software module 12 increments the promotional code count by one and on to step 83 where the software module 12 determines if the promotional code count is less than or equal to the maximum number of promotional codes. If the promotional code count is greater than the maximum number of promotional codes, die method returns to step 82 where the received promotional code is rejected by die software module 12 as invalid. If, however, the promotional code count is less than or equal to the maximum number of promotional codes, the metiiod proceeds to step 84 where the received promotional code is accepted by die software module 12. The software module 12 issues an acceptance message, for example, "PROMOTIONAL CODE ACCEPTED" to the display 28 and, proceeding to step 86, transfers the received promotional code, togetiier with the product code stored in the product code field 20-N-4 and die discount amount stored in die discount field 20-N-5 corresponding to die product code field 20-N-l matching the received product code, to the software module 14 residing widiin die processor of the electronic cash register 42. The method tiien returns to step 78 to await entry of a next promotional code at die consumer terminal 48. Of course, if multiple promotional code entries 20-N have the same promotional code in promotional code field 20-N-l, tiien all of the promotional code entries 20-N having the matching promotional code are transferred to die software module 14. The foregoing process is repeated for each promotional code entered at die consumer terminal 48 during the data entry portion of die transaction. If no more promotional codes are received from the consumer terminal 48 during the data entry portion of the transaction, the method proceeds to step 88 where the cashier ends die entry of information related to die transaction, for example, by depressing a transaction end key. Proceeding to step 90, upon detection of die end of the data entry portion of the transaction, the software module 14 subtotals the cost of the items to be purchased during the transaction. In addition, die software module 14 deactivates die consumer terminal 48 from receiving any further promotional codes. More specifically, the software module 14 initiates deactivation of the consumer terminal 48, for example, by transmitting an "disable consumer terminal" signal to the processor 23. In response, the processor subsystem 23 would deactivate die consumer terminal, for example, by disabling die keypad 27 and/or otiier input devices included as part of the consumer terminal 48. Additionally, die processor subsystem 23 may also transmit an visual or audible indicator that it will no longer accept promotional codes. For example, the processor 23 may generate a message such as "PROCESSING PROMOTIONAL CODES NOW" on the display 48. At step 92, the software module 14 reduces die interim cost of the transaction by the discount amounts contained in the discount fields 20-N-5 if die products corresponding to the accepted promotional codes were actually purchased by die consumer. More specifically, for each product code received from the first software module 12, die second software module compares the product code to die product codes for each item purchased during die transaction. If a match to the received product code is identified among the product codes for e purchased items, me interim cost of the transaction is reduced by die discount amount contained in die discount field 20-N-5 coπesponding to die matching product code contained in the product code field 20-N-4. In addition to filtering out discount amounts and product codes associated with promotional codes entered for products not actually purchased by a consumer, where multiple product codes, i.e., a product family, have the same promotional code, the aforementioned process will filter out discount amounts and product codes for tiiose products in a product family not actually purchased by the consumer. Thus, two promotional code entries 20-N may have the same promotional codes but different product codes and different discount amounts. However, only die discount amount coπesponding to the product actually purchased shall be applied to die cost of die point-of-sale transaction. After reducing die interim cost of the transaction by the selected discount amounts, die method proceeds to step 94 where the total cost of the transaction is determined by the software module 14 and die point-of-sale transaction completed. The method tiien proceeds to step 96 where a determination is made whetiier any analysis of die provided discounts is desired. If not, die metiiod ends at step 100. Returning now to step 96, die method by which analysis of the provided discounts is accomplished shall now be described in greater detail. Generally, it would be prefeπed that analysis be accomplished after hours when consumers will no longer be attempting to purchase goods. Analysis of the provided discounts may be performed from die consumer terminal 48 if the entire computer system 21 is incorporated therein or from the computer system 46 if the processor subsystem 23, the memory subsystem 24 and die real-time clock 26 reside therein. Thus far, the use of promotional codes, entered by consumers at the consumer terminal 48, to receive discounts on items being purchased has been disclosed at length. In most cases, consumers will enter the retailer's establishment knowing one or more promotional codes and will enter the promotional codes during the point-of-sale transaction. It is contemplated tiiat consumers will learn the promotional codes from advertisements run by die retailer in the print, radio or television media. For example, a print advertisement may state that the consumer will receive $1.00 off product "XYZ" if he or she enters die code "123" during their purchase. Generally, a single promotional code is associated witii each product for which discounts are available. However, should die retailer decide to associate multiple promotional codes witii a single product, considerable information regarding the success of alternate advertising campaigns may be derived from the discounting information accumulated by the computer system 46. For example, when entering promotional codes into the memory subsystem 24, promotional codes "123" and "124" may be associated witii a $1.00 discount when purchasing item "XYZ". However, promotional code "123" may be printed in an advertisement running in a daily newspaper while the promotional code "124" may be printed in a weekly entertainment magazine. Thus, consumers who decide to purchase the item based upon die advertisement in the daily newspaper will use one promotional code to receive the discount while consumers who decide to purchase the item based upon the advertisement in die weekly magazine will use a different promotional code to receive die discount. Thus, if analysis of die provided discounts is desired at step 96, the metiiod proceeds to step 98 for analysis. Analysis of the provided discounts may be initiated by transmitting an instruction to the processor subsystem 23, for example, by depressing an analyze discounts "hot key" provided on the consumer terminal 48. Upon receiving the analyze instruction, the processor subsystem 23 will retrieve the promotional code counts stored in the third region 20c of the memory subsystem 24 for each promotional code stored in the first region 20a of the memory subsystem 24. The retrieved list of promotional codes and associated promotional code counts may then be sent to die printer 31 or otherwise displayed for review. Of course, the otiier information (promotion period, product code and discount amount) associated with each promotional code may also be included in the list. By reviewing the produced list of promotional codes and associated promotional code counts, considerable information regarding the relative success of advertising campaigns may be derived. For example, if 10,000 consumers entered the promotional code advertised in the daily newspaper while only 150 consumers entered die promotional code advertised in the weekly entertainment magazine, it may be readily ascertained tiiat die advertised product is not particularly appealing to the demographic group who purchase and read die weekly entertainment magazine. Thus, by analyzing the list of promotional codes and associated promotional code counts, a retailer may readily discern which advertising media is best equipped to reach consumers of various goods. Upon completing analysis of the list of promotional codes and associated promotional code counts at step 98, the method ends at step 100. While we have disclosed how die use of multiple promotional codes for a single product may provide useful information as to the relative success of various advertising media, it should be clearly understood tiiat innumerable types of market research may be performed by storing various combinations of promotional codes, promotion period, product codes and discount amounts as promotional code entries 20-N. For example, some discount amounts may be more successful in catching the consumer's attention than others. For example, a 99 cent discount may be a better attention grabber than a $1.00 discount. By associating a first discount amount for a first product with a first promotional code, associating a second discount amount for the first product witii a second promotional code and distributing both promotions in the media equally, the retailer can determine die preferred discount amount for the product by analyzing the promotional code counts for the two promotion codes. Thus, tiiere has been described and illustrated herein, a point-of-sale transactional system in which a discount is applied to a transaction in response to a consumer providing a promotional code to a discounting system associated witii the point-of-sale transactional system. By providing the aforementioned system, a discounting system having a number of characteristics advantageous to retailers has been designed. Specifically, by requiring the consumer to provide a promotional code advertised in die media in order to receive a discount upon purchasing the advertised goods, die retailer can provide die discount only to tiiose consumers whose purchase is motivated by the discount while selling the goods at full price to those consumers whose purchase is unmotivated by the promotion. Thus, the cost, to the retailer, for promoting the sale of goods using discounts can be substantially reduced. It has further been described and illustrated herein, a system which analyses consumer response to product promotions based upon consumer usage of promotional codes in connection with point-of-sale discounting systems in which the consumer uses publicly distributed promotional codes while die sales transaction is on-going to automatically receive discounts on purchased goods. By providing die aforementioned system, it is now possible to readily compare consumer response to various advertising campaigns in which the promotional codes were distributed, tiiereby enabling the retailer to carefully tailor future advertising campaigns based upon consumer usage of promotional codes distributed in prior advertising campaigns. However, those skilled in die art will recognize that many modifications and variations besides those specifically mentioned herein may be made without departing substantially from the concept of the present invention. Accordingly, it should be clearly understood tiiat the form of the invention described herein is exemplary only and is not intended as a limitation on the scope of the invention.

Claims: WHAT IS CLAIMED IS: 1. A computer-implemented discounting system for use in conjunction with a point-of-sale transaction device, comprising: a device which accepts promotional codes entered as a series of characters; a memory subsystem, said memory subsystem storing information related to at least one promotion; a software module, coupled to said device and said memory subsystem; said software module receiving said promotional codes entered by consumers using said device, using said information held in said memory subsystem to determine if said entered promotional codes relates to one or more of said at least one promotion and transmitting discount information for said promotions related to said entered promotional codes to said point-of-sale transaction device. 2. A computer-implemented discounting system according to claim 1 wherein said information, stored in said memory subsystem, related to at least one promotion is comprised of a promotional code, a product code and a discount amount for each one of said at least one promotion and wherein said software module compares said received promotional codes witii said promotional codes stored in said memory subsystem and, if said received promotional codes match one of said promotional codes stored in said memory subsystem, said software module transfers said product code and said discount amount coπesponding to said matched promotional code to said point-of-sale transactional device. 3. A computer-implemented discounting system according to claim 2 wherein said information, stored in said memory subsystem, related to at least one promotion further comprises a promotion period for each of said at least one promotion and wherein said software module determines, if said received promotional code matches one of said promotional codes stored in said memory subsystem, if said received promotional code was received during said promotion period coπesponding to said matching promotional code and transfers said product code and said discount amount corresponding to said matched promotional code to said point-of-sale transactional device only if said received promotional code was received during said promotion period. 4. A computer-implemented discounting system according to claim 2 wherein said information, stored in said memory subsystem, related to at least one promotion further comprises, for each of said at least one promotion, a promotional code count of a total number of times that said promotional code has been received and a maximum number of promotional codes and wherein said software module determines, if said received promotional code matches one of said promotional codes stored in said memory subsystem, if said coπesponding promotional code count exceeds said maximum number of promotional codes has been received and transfers said discount amount coπesponding to said matched promotional code to said point-of-sale transactional device only if said promotional code count does not exceed said maximum number of promotional codes. 5. A computer- implemented discounting system for use in conjunction with a point-of-sale transaction device, comprising: a keypad for accepting promotional codes entered by consumers; a memory subsystem, said memory subsystem storing information related to at least one promotion; a software module, coupled to said keypad and said memory subsystem; said software module receiving said promotional codes entered by consumers using said keypad, using said information held in said memory subsystem to determine if said entered promotional codes relates to one or more of said at least one promotion and transmitting discount information for said promotions related to said entered promotional codes to said point-of-sale transaction device. 6. A computer-implemented discounting system according to claim 5 wherein said keypad includes a plurality of keys, each representing an alpha-numeric character. 7. A computer-implemented discounting system according to claim 5 wherein said information, stored in said memory subsystem, related to at least one promotion is comprised of a promotional code, a product code and a discount amount for each one of said at least one promotion. 8. A computer-implemented discounting system according to claim 7 wherein said software module compares said received promotional codes witii said promotional codes stored in said memory subsystem and, if said received promotional codes match one of said promotional codes stored in said memory subsystem, said software module transfers said product code and said discount amount coπesponding to said matched promotional code to said point-of-sale transactional device. 9. A computer-implemented discounting system according to claim 8 wherein said information, stored in said memory subsystem, related to at least one promotion further comprises a promotion period for each of said at least one promotion. 10. A computer-implemented discounting system according to claim 9 wherein said software module determines, if said received promotional code matches one of said promotional codes stored in said memory subsystem, if said received promotional code was received during said promotion period coπesponding to said matching promotional code and transfers said product code and said discount amount coπesponding to said matched promotional code to said point-of-sale transactional device only if said received promotional code was received during said promotion period. 11. A computer-implemented discounting system according to claim 8 wherein said information, stored in said memory subsystem, related to at least one promotion further comprises a promotion start time/date and a promotion end time/date for each of said at least one promotion. 12. A computer-implemented discounting system according to claim 11 wherein said software module determines, if said received promotional code matches one of said promotional codes stored in said memory subsystem, if said received promotional code was received after said promotion start time/date and before said promotion end time/date coπesponding to said matching promotional code and transfers said product code and said discount amount coπesponding to said matched promotional code to said point-of-sale transactional device only if said received promotional code was received after said promotion start time/date and before said promotion end time/date. 13. A computer-implemented discounting system according to claim 8 wherein said information, stored in said memory subsystem, related to at least one promotion further comprises, for each of said at least one promotion, a promotional code count of a total number of times that said promotional code has been received and a maximum number of promotional codes. 14. A computer- implemented discounting system according to claim 13 wherein said software module determines, if said received promotional code matches one of said promotional codes stored in said memory subsystem, if said coπesponding promotional code count exceeds said maximum number of promotional codes has been received and transfers said discount amount coπesponding to said matched promotional code to said point-of-sale transactional device only if said promotional code count does not exceed said maximum number of promotional codes. 15. A computer-implemented discounting system according to claim 8 and further comprising: a processor subsystem, coupled to said keypad and said memory subsystem; said software module executable by said processor subsystem. 16. A computer-implemented discounting system according to claim 14 wherein said keypad includes a plurality of keys, each representing an alpha-numeric character and wherein each one of said promotional codes is comprised of a different series of alphanumeric characters generated by depressing selected ones of said plurality of keys. 17. A computer- implemented discounting system according to claim 15 wherein said keypad further includes a key which, when depressed, indicates that said series of alphanumeric characters generated by depressing selected ones of said plurality of keys thereafter, is a promotional code. 18. A computer- implemented discounting system for use in conjunction with a point-of-sale transaction device, comprising: a microphone for accepting promotional codes audiblilized by consumers; means for converting said audibilized promotional codes into corresponding digital messages; a memory subsystem, said memory subsystem storing information related to at least one promotion; a software module, coupled to said converting means and said memory subsystem; said software module receiving said digital messages coπesponding to said promotional codes audibilized by consumers using said microphone, using said information held in said memory subsystem to determine if said received digital messages relate to one or more of said at least one promotion and transmitting discount information for said promotions related to said received digital messages to said point-of-sale transaction device. 19. A computer-implemented discounting system according to claim 18 wherein said information, stored in said memory subsystem, related to at least one promotion is comprised of a promotional code, a product code and a discount amount for each one of said at least one promotion. 20. A computer-implemented discounting system according to claim 19 wherein said software module compares said received digital messages with said promotional codes stored in said memory subsystem and, if said received digital messages match one of said promotional codes stored in said memory subsystem, said software module transfers said product code and said discount amount coπesponding to said matched promotional code to said point-of-sale transactional device. 21. A computer-implemented discounting system according to claim 20 wherein said information, stored in said memory subsystem, related to at least one promotion further comprises a promotion period for each of said at least one promotion. 22. A computer-implemented discounting system according to claim 21 wherein said software module determines, if said received promotional code matches one of said promotional codes stored in said memory subsystem, if said received promotional code was received during said promotion period coπesponding to said matching promotional code and transfers said product code and said discount amount coπesponding to said matched promotional code to said point-of-sale transactional device only if said received promotional code was received during said promotion period. 23. A computer-implemented discounting system according to claim 22 wherein said information, stored in said memory subsystem, related to at least one promotion further comprises, for each of said at least one promotion, a promotional code count of a total number of times that said promotional code has been received and a maximum number of promotional codes. 24. A computer- implemented discounting system according to claim 23 wherein said software module determines, if said received digital message matches one of said promotional codes stored in said memory subsystem, if said coπesponding promotional code count exceeds said maximum number of promotional codes has been received and transfers said discount amount coπesponding to said matched promotional code to said point-of-sale transactional device only if said promotional code count does not exceed said maximum number of promotional codes. 25. A point-of-sale transactional system, comprising: a transactional device for performing point-of-sale transactions; a consumer interface for accepting codes entered by consumers; a discounting device, coupled to said consumer interface and said transactional device, said discounting device including a first software module which receives codes from said consumer interface, determines if said received codes are promotional codes and transmits discount information, for each determined promotional code, to said transactional device; said transactional device including a second software module which performs said point-of-sale transaction using said discount information received from said discounting device. 26. A point-of-sale transactional system according to claim 25 wherein said transactional device further comprises: means for activating said discounting device upon initiation of a data entry portion of a point-of-sale transaction and deactivating said discounting device upon completion of said data entry portion of said point-of-sale transaction; said discounting device capable of accepting codes from consumers only when activated. 27. A point-of-sale transactional system according to claim 25 wherein said discounting device further comprises: a memory subsystem coupled to said first software module, said memory subsystem storing at least one promotional code and a discount amount for each of said at least one promotional code stored tiierein; said first software module comparing said received codes witii said at least one promotional code stored in said memory subsystem and transmitting said discount amount coπesponding to a first one of said at least one promotional code to said second software module if said received code matches said first one of said at least one promotional code. 28. A point-of-sale transactional system according to claim 25 wherein said discounting device further comprises: a memory subsystem coupled to said first software module, said memory subsystem storing at least one promotional code and a promotion period and a discount amount for each of said at least one promotional code stored tiierein; said first software module comparing said received codes witii said at least one promotional codes stored in said memory subsystem, validating said received code and transmitting said discount amount coπesponding to a first one of said at least one promotional codes to said second software module if said received code matches said first one of said at least one promotional codes and was received during said promotion period. 29. A point-of-sale transactional system according to claim 25 wherein said discounting device further comprises: a memory subsystem coupled to said first software module, said memory subsystem storing at least one promotional code and a promotion period, a product code and a discount amount for each of said at least one promotional code stored therein; said first software module comparing said received codes with said at least one promotional codes stored in said memory subsystem, validating said received code and transmitting said product code and said discount amount coπesponding to a first one of said at least one promotional codes to said second software module if said received code matches said first one of said at least one promotional codes and was received during said promotion period; said second software module determining a cost of said point-of-sale transaction and reducing said cost by said discount amount if an item having said product code transmitted to said second software module was purchased during said point-of-sale transaction. 30. A point-of-sale transactional system according to claim 25 wherein said discounting device further comprises: a memory subsystem coupled to said first software module, said memory subsystem storing at least one promotional code and a promotional code, a promotion period, a product code, a discount amount, a promotional code count of a total number of times that said promotional code has been received and a maximum number of promotional codes for each one of said at least one promotional code stored therein; said first software module comparing said received codes witii said at least one promotional codes stored in said memory subsystem, validating said received code and transmitting said product code and said discount amount corresponding to a first one of said at least one promotional codes to said second software module if said received code matches said first one of said at least one promotional codes, was received during said promotion period and said promotional code count does not exceed said maximum number of promotional codes; said second software module determining a cost of said point-of-sale transaction and reducing said cost by said discount amount if an item having said product code transmitted to said second software module was purchased during said point-of-sale transaction. 31. A computer-implemented method of discounting an on-going point-of-sale transaction performed by a point-of-sale transactional device, comprising the steps of: storing, in a memory subsystem of a computer system, a series of promotional codes and a coπesponding series of promotional information entries; receiving a promotional code entered on a keypad, coupled to said computer system, by a consumer; comparing said received promotional code to said series of promotional codes stored in said memory subsystem; if said received promotional code matches one of said series of stored promotional codes, transmitting said promotional information entry coπesponding to said matched promotional code to said point-of-sale discounting device; and discounting the cost of said point-of-sale transaction using said transmitted promotional information. 32. A computer-implemented metiiod of discounting an on-going point-of-sale transaction according to claim 31 wherein said transmitted promotional information includes a product code and a discount amount. 33. A computer-implemented method of discounting an on-going point-of-sale transaction according to claim 32 and further comprising the steps of: storing a product code for each product to be purchased as part of said point-of-sale transaction; comparing said transmitted product code to each of said stored product codes; and discounting die cost of said point-of-sale transaction by said discount amount if said transmitted product code matches one of said stored product codes. 34. A computer-implemented method of discounting an on-going point-of-sale transaction according to claim 33 wherein each of said promotional information entries stored in said memory subsystem further comprise a promotion period. 35. A computer-implemented metiiod of discounting an on-going point-of-sale transaction according to claim 34 and further comprising the steps of: determining whether said received promotional code matching one of said series of stored promotional codes was received within said coπesponding promotion period; and transmitting said product code and discount amount coπesponding to said matched promotional code only if said received promotional code was received widiin said coπesponding promotion period. 36. A computer-implemented method of discounting an on-going point-of-sale transaction according to claim 35 wherein each promotion period is comprised of a promotion start time/date and a promotion end time/date. 37. A computer-implemented method of discounting an on-going point-of-sale transaction according to claim 36 and further comprising the steps of: determining whetiier said received promotional code matching one of said series of stored promotional codes was received after said coπesponding promotion start time/date but before said coπesponding promotion end time/date; and transmitting said product code and discount amount coπesponding to said matched promotional code only if said received promotional code was received after said coπesponding promotion start time/date but before said coπesponding promotion end time/date. 38. A computer- implemented method of discounting an on-going point-of-sale transaction according to claim 35 wherein each of said promotional information entries stored in said memory subsystem further comprise a promotional code count of a total number of times that said promotional code has been received and a maximum number of promotional codes. 39. A computer- implemented metiiod of discounting an on-going point-of-sale transaction according to claim 38 and further comprising the steps of: incrementing said promotional code count coπesponding to said stored promotional code matching said received promotional code; determining whetiier said promotional code count coπesponding to said matching promotional code exceeds said maximum number of promotional codes for said corresponding matching promotional codes; and transmitting said product code and discount amount coπesponding to said matched promotional code only if said promotional code count does not exceed said maximum number of promotional codes. 40. A method for comparative analysis of consumer response to product promotions which provide discounts during point-of-sale transactions, comprising the steps of: storing, in a memory subsystem of a computer system, a series of at least two promotional codes and a coπesponding series of at least two promotional information entries, each one of said series of promotional codes and coπesponding one of said series of promotional information entries related to separate promotions for a product; determining a total number of times a first one of said series of promotional codes is transmitted to said computer system via a user interface, coupled to said computer system, by consumers responding to a first promotion for said product, said consumers transmitting said first promotional code receiving a first discount included as part of a first promotional information entry which coπesponds to said first promotional code; determining a total number of times a second one of said series of promotional codes is transmitted to said computer system via said user interface by consumers responding to a second promotion for said product, said consumers transmitting said second promotional code receiving a second discount included as part of a second promotional information entry which coπesponds to said second promotional code; and comparing said total number of times said first one of said series of promotional codes is transmitted to said computer system to said total number of times said second one of said series of promotional codes is transmitted to said computer system. 41. A method for analyzing consumer response to product promotions which provide discounts for point-of-sale transactions according to claim 40 and further comprising the steps of: maintaining, at a first location in said memory subsystem, a first count of said total number of times said first one of said promotional codes is received by said computer system; and maintaining, at a second location in said memory subsystem, a second count of said total number of times said second one of said promotional codes is received by said computer system. 42. A method for analyzing consumer response to product promotions which provide discounts for point-of-sale transactions according to claim 41 and further comprising the steps of: comparing each promotional code received from said user interface to said series of promotional codes stored in said memory subsystem; if said received promotional code matches said first one of said series of stored promotional codes, incrementing said first count stored in said memory subsystem by one; and if said received promotional code matches said second one of said series of stored promotional codes, incrementing said second count stored in said memory subsystem by one. 43. A method for analyzing consumer response to product promotions according to claim 42 and further comprising the steps of: retrieving said first and second counts from said memory subsystem; and comparing said first retrieved count to said second retrieved count to determine relative consumer response to said first and second promotions. 44. A method of analyzing consumer response to product promotions according to claim 43 wherein each of said promotional information entries stored in said memory subsystem further comprise a promotion period. 45. A metiiod of analyzing consumer response to product promotions according to claim 44 and further comprising the steps of: determining whether said received promotional code matching one of said series of stored promotional codes was received widiin said coπesponding promotion period; and incrementing said count coπesponding to said received promotional code only if said received promotional code was received within said corresponding promotion period. 46. A metiiod of analyzing consumer response to product promotions according to claim 45 wherein each promotion period is comprised of a promotion start time/date and a promotion end time/date. 47. A method of analyzing consumer response to product promotions according to claim 46 and further comprising the steps of: determining whetiier said received promotional code matching one of said series of stored promotional codes was received after said coπesponding promotion start time/date but before said coπesponding promotion end time/date; and incrementing said count corresponding to said received promotional code only if said received promotional code was received after said coπesponding promotion start time/date but before said coπesponding promotion end time/date. 48. A metiiod for comparative analysis of consumer response to product promotions which provide discounts during point-of-sale transactions, comprising the steps of: storing, in a memory subsystem of a computer system, first and second promotional entries, said first and second promotional entries respectively related to first and second promotions for a product, said first promotional entry comprised of a first promotional code and a first discount and said second promotional entry comprised of a second promotional code and a second discount; maintaining, at a first location in said memory subsystem, a first count of said total number of times said first promotional code is received by said computer system; maintaining, at a second location in said memory subsystem, a second count of said total number of times said second promotional code is received by said computer system; each time a consumer enters a promotional code on a keypad coupled to said computer system, comparing said entered promotional code to said first and second promotional codes stored in said memory subsystem; if said entered promotional code matches said first promotional code, incrementing said first count stored in said memory subsystem by one and transmitting said first discount amount to a point-of-sale transaction device coupled to said computer system; if said received promotional code matches said second promotional code, incrementing said second count stored in said memory subsystem by one and transmitting said second discount amount to said point-of-sale transaction device; retrieving said first and second counts from said memory subsystem; performing a comparative analysis of consumer response to said first and second to promotions for said product by comparing said first count to said second count. 49. A method of analyzing consumer response to product promotions according to claim 48 wherein said first promotional entry further comprise a first promotion period and said second promotional entry further comprises a second promotion period. 50. A method of analyzing consumer response to product promotions according to claim 49 and further comprising the steps of: determining whetiier said entered promotional code matching one of said series of stored promotional codes was received widiin said coπesponding promotion period; and incrementing said count coπesponding to said entered promotional code only if said received promotional code was received widiin said coπesponding promotion period. 51. A method of analyzing consumer response to product promotions for products according to claim 50 wherein each promotion period is comprised of a promotion start time/date and a promotion end time/date. 52. A metiiod of analyzing consumer response to product promotions according to claim 51 and further comprising the steps of: determining whetiier said entered promotional code matching one of said series of stored promotional codes was received after said coπesponding promotion start time/date but before said coπesponding promotion end time/date; and incrementing said count coπesponding to said entered promotional code only if said entered promotional code was received after said coπesponding promotion start time/date but before said coπesponding promotion end time/date.

Inventors: NAFTZGER WALTER L, NAFTZGER, WALTER, L.
Applicants: CODESAVER INTERNATIONAL INC, CODESAVER INTERNATIONAL, INC.
Application year: 1996
Main classification: G06F17
IPC codes: G06Q30