METHOD FOR PRINTING ELECTRONIC TICKETS

Abstract: A system determines the printer (55) and paper (11) that are used to print an electronic ticket (11) and allows the purchaser of the ticket to check the quality of the printed ticket. The system will first capture the ticket purchaser's printer type and configuration setting information, paper, ink, or toner combination and then use the foregoing information to determine if the ticket purchaser's computer printer can print an acceptable ticket. The ticket purchaser will also be given an opportunity to print a test pattern (21) so that the purchaser will be able to check the print quality of the printer (55).

Description: METHOD FOR PRINTING ELECTRONIC TICKETS Cross Reference to Related Applications Reference is made to commonly assigned copending U.S. patent applications: number 09/575,312 entitled "Method For Issuing Electronic Tickets" in the name of Ronald P. Sansone; number 09/573,364 entitled "Method For Reading Electronic Tickets" in the name of Ronald P. Sansone; and number 09/575,314 entitled "Method For Automatically Reading Electronic Tickets " in the name of Ronald P. Sansone; all filed on May 19, 2000. Field Of The Invention The subject invention relates to a method for printing tickets at remote locations and, more particularly, to printing readable tickets at remote locations. Background of the Invention Tickets such as concert, theater, movie, museum, trade show, airline and sports tickets, etc., are documents having a substantial, intrinsic value which, typically, may be presented by any bearer to gain admittance or exercise an entitlement. Since such tickets may have substantial cash value, there exists a continuing problem of preventing the issuance of fraudulent tickets. The issuance of many types of tickets, such as theater tickets, is currently controlled by means of controlled supplies (e.g. serialized ticket stock, specially printed ticket stock, etc.) and by allowing tickets to be issued only by controlled, authorized issuers (e.g. ticket agents). Controlled supplies are expensive, difficult to control, and prone to theft or counterfeiting. Typically, one stood in line to purchase a ticket at the place the event was being held or purchased the ticket over the phone from an authorized ticket agent who mailed the ticket to the purchaser. Currently, ticketing companies are giving purchasers the option of printing their electronic tickets at home using ordinary paper, a personal computer printer and an Internet connection. One of the problems in allowing people to print tickets at home is to ensure that the tickets are not counterfeit. One of the solutions suggested to solve the foregoing problem is to print an encrypted bar code on the ticket. Recent studies have shown that personal computer printers have difficulty in printing encrypted bar codes. Both resolution (dots/inch) and positional accuracy seem to be the major limiting factors. Furthermore, the printing technology used is another major factor, specifically when combined with the type of paper the ticket is printed on. Unfortunately, if a ticket is printed properly on ordinary paper with an encrypted bar code, the ticket can be photocopied, and the seller of the ticket will be unable to distinguish between the original real ticket and the photocopied ticket. Summary Of The Invention This invention overcomes the disadvantages of the prior art by determining the printer and paper that are used to print the ticket and allowing the purchaser of the ticket to check the quality of the printed ticket. The system will first capture the ticket purchaser's printer type and configuration setting information, paper, ink, or toner combination and then use the foregoing information to determine if the ticket purchaser's computer printer can print an acceptable ticket. The ticket purchaser will also be given an opportunity to print a test pattern so that the purchaser will be able to check the print quality of the printer. If it is determined that an acceptable ticket may be printed, the ticket purchaser's computer printer (laser printer, ink jet printer, facsimile printer) will print the ticket. The electronic ticket will contain ticketing information, an encrypted bar code, and a graphic field. The graphic field is designed to produce a "tell", a visible known image (a large number of detectable halftone gray steps) when printed by a personal computer printer. Additionally, the graphic field will change in appearance when the ticket originally printed by the personal computer printer is digitally reproduced either by scanning or photocopied. The digital scanning and photocopying processes are degrading ones that reduce the number of detectable halftone gray steps produced in the copy. These processes also give rise to a pronounced mottle at the transition zone from white to black that does not exist in the original printed electronic ticket. The loss of some of the gray steps in the graphic field will indicate to an observer that the reproduced ticket is counterfeit. This invention takes advantage of the fact that the human eye cannot resolve the individual spots in the intermediate gray zone that is somewhere between white and black. The human eye interprets the intermediate patch of adjacent spots in the gray zone as a particular shade of gray, when, in fact, the adjacent spots in the gray zone are black spots that vary in size due to process variations introduced by the photocopying and/or scanning processes. The human eye is very sensitive to slight changes of grayness in the intermediate gray zone region. The human eye is very sensitive to miniscule variations in the apparent grayness of the patch. Consequently, the human eye will be able to observe that the graphic field, or tell, on an electronic ticket will change in appearance when the ticket originally printed by the personal computer printer is digitally reproduced either by scanning or photocopied. Thus, the human eye will be able to determine when a copied electronic ticket is a fake ticket. Brief Description Of The Drawings Fig. 1 is a drawing of an electronic ticket having a graphic field or tell; Fig. 2 is a drawing of graphic field 21 or tell 21 of Fig. 1 and an enlarged version of graphic field 21 that becomes graphic field 21a; Fig. 3 is a drawing showing graphic field 21a and segments 34, 35 and 36 that make up a enlarged version of graphic field 21a; Fig. 4 is a drawing showing graphic field 21 and how graphic field 21 would be distorted by the photocopying and/or scanning/printing processes to look like graphic field 21 B; Fig. 5 is a drawing showing how tickets may be purchased over the Internet; and Figs. 6A - 6F is a flow chart showing the interaction of the program in server 53 with the program in computer 50 and the program in controller 67. Detailed Description of Preferred Embodiments Of The Invention Referring now to the drawings in detail, and more particularly to Fig. 1, the reference character 11 represents an electronic ticket that may be used for admission to any place, service, or event that current tickets allow admission. Electronic ticket 11 may have been produced by a printer coupled to a computer or by a printer of an electronic postage meter or automatic teller machine (ATM) printer. Ticket 11 includes a serial number 12; the time 13 of the event the ticket holder is entitled to admission; the date of the event 14; the number of people designated to admit, or the names of the people allowed admission 15; the ticket holder(s) seat number 16; the name of the place of the event 17; the address of the event 18; a unique number 19 that represents a computer record; a bar code 20, which may be a two dimensional encrypted bar code i.e., the PDF417 standard developed by Symbol Technologies Inc. of Bohemia, New York; a graphic field or tell 21 ; a proof code or bar code 63 that represents the printer settings (printer manufacturer, model no., resolution, density, etc) of the printer that printed ticket 11; and, a numeric number 64 that represents the printer settings (printer manufacturer, model no., resolution, density, etc) of the printer that printed ticket 11. Bar code 20 contains in coded form the name of the place of the event 17, the address of the event 18, and a unique number 19. Bar code 63 and number 64 may be encrypted. Bar code 63 and number 64 may also be used to validate the printer that prints ticket 11. Fig. 2 is a drawing of graphic field 21, or tell 21 , of Fig. 1 and an enlarged version of graphic field 21 that becomes graphic field 21a. Graphic field 21 , or tell 21, is a variable half-tone screen print that is designed to appear black at its edge 23, near white at its right edge 24, and shades of gray in region 25. Section 22 of graphic field 21 is an enlarged version of region 25. Section 22 shows the effect of varying the black printed spots 26 and white background 27. White background 27 decreases in size from edge 28 to edge 29. Within region 30, white background 27 becomes completely surrounded by black spots 26. Within region 32, white background 27 appears to increase in size as one approaches edge 28. Half toning is the process used to produce graphic field 21. Half toning is a technique that is used by printers to represent a gray scale image on a bi-level (black and white) page. Half toning breaks up an image into spots of varying sizes to simulate the original image. The human eye perceives a shade of gray depending on the percentage of ink coverage. Black and white laser and ink jet computer printers use ink or toner of only one blackness. Therefore, to produce various shades of gray to reproduce a continuous gray scale image, the image is broken into a series of spots. Varying the spot sizes approximates the shades of gray. Thus, a group of large spots placed closely together appears black. A group of smaller spots with larger spaces between them produces a pale gray shade. A group of even smaller black spots spaced widely apart would appear almost white. Graphic field 21 consists of a continuously varying tone area, a field where the range of tone has been pre-selected to provide a continuum of spots that slowly vary from small white backgrounds with large black spots to small black spots on a white background. "Small" is defined as being below the resolution limit of the human eye. When printed by a laser or ink jet printer, graphic field 21 appears black at its edge 23, near white at its edge 24, and shades of gray in region 25. Fig. 3 is a drawing showing graphic field 21a and segments 34, 35 and 36 that make up an enlarged version of graphic field 21a. Within region 36, white background 38 becomes completely surrounded by black spots 39. Within region 35, white background 39 appears as white open areas at its left edge and white squares at its right edge. Within region 34, white background 38 completely surrounds varying size black spots 39. Fig. 4 is a drawing showing graphic field 21 and how graphic field 21 would be distorted by the photocopying and/or scanning/printing processes to look like graphic field 21 B. The original print tone of graphic field 21 is a uniform gray gradient. When graphic field 21 is photocopied and/or scanned/printed, graphic field 21 B will vary from black to white. Graphic field 21 B will have visible bands 60, a mottled area 461 and an expanded black tone area 62. Thus, graphic field 21 does not look the same as graphic field 21 B. Laser and ink jet printers would print graphic field 21 as described in the description of Figs. 2 and 3. The aforementioned printers are designed in a manner such that when they print graphic field 21 , graphic field 21 appears to the average human eye to be free of objectionable variation. The printers are not concerned with how a photocopy and/or how a scanned/printed copy of graphic field 21 would look. However, the non-linear reproduction characteristics of a photocopier and/or a scanner/printer will magnify these non-perceivable process- produced variations in graphic field 21 and produce graphic field 21 B. The peculiarities of the human eye further magnify the now visible process errors. The errors manifest themselves as mottled area 461 in graphic field 21 B, whereas in region 25 of graphic field 21, a smooth gray tone exists. Fig. 5 is a drawing showing how tickets may be purchased over the Internet. A purchaser wishing to obtain an electronic ticket, inputs information through input device 50, which may be a personal computer, or an non-intelligent terminal device, or any other suitable input device, to ticket image control data center 51 via Internet 52. Data center 51 includes a printer and printing data base 65; an issued ticket images data archive 66 that is coupled to database 65; a controller 67 that is coupled to database 65, archive 66 and, ticket mailing process 67; and a venue seat database 68 that is coupled to controller 67. Database 65 contains a list of printers which may successfully print graphic field 21 and the parameters required for each printer to print graphic field 21. Archive 66 stores the issued tickets in accordance with the unique number assigned to each ticket. Controller 67 is used to control the ticket image production and reproduction of ticket 11, and venue seat database 68 contains the seats that are being processed for delivery for each event. Ticket mailing process 67 is used if printer 55 cannot print acceptable tickets 11. Data center 51 communicates with a ticket seller server 53 via Internet 52 to obtain information as to the availability of suitable events consistent with what the purchaser desires. Server 53 will handle all the specifics that the ticket entitles one to receive. Server 53 will also handle the payment for the ticket, i.e., credit card. Server 53 includes a seating database 69, and a controller 70 that is coupled to database 69. Seating database 69 contains the seat assignments for each specific event, i.e., the 3:00 P.M. performance at theater 17. Controller 70 controls the seating process for booking over Internet 52 and provides a look up for venue ticket reader 71. Reader 71 may be a bar code or optical reader that is used to read and validate the information on ticket 11. Server 53 also communicates with financial server 54 and data center 51 to validate payment information. If the purchaser wants to purchase the ticket(s) that server 53 has available at the price specified by server 53, and server 54 is satisfied with the purchaser's credit, server 53 will inform data center 51 of these facts. Data center 51 will compose ticket 11. Data center 51 will download the purchased ticket(s) to computer 50. Personal computer printer 55 (laser, ink jet, facsimile machine) will print ticket(s) 11. Graphic field 21 , or tell 21 , will be printed on ticket 11 as shown in Fig. 1. If ticket 21 is reproduced by photocopying and/or scanning/printing, graphic field 21 will display a mottle image 461 , as shown in Fig. 4. Thus, a ticket agent will be able to visualize when a ticket is a copy. Figs. 6A - 6F is a flow chart showing the interaction of the program in server 53 with the program in computer 50 and the program in controller 67. The programs begin in block 99 of computer 50 where a prospective buyer indicates that he is interested in ticket choices. Then the program goes to block 100 of server 53. Decision block 100 determines whether or not a seller has received, a new request. If block 100 determines that a new request has not been received, the program goes back to the input of block 100. If block 100 determines that a new request has been received the program goes to the input of block 101. Block 101 offers venue choices to the buyer, i.e. for what event do you want to purchase tickets, when do you want to go to the event, to what location do you want to go, what is the price range of seats you want, where do you want to sit, how many tickets do you want to buy, etc. Then the program goes to block 102 in buyer computer 50, where the buyer makes the venue choices. After the buyer has made the choices, the program goes to block 103, where the buyer indicates that he is interested in purchasing one or more tickets. Now the program goes to decision block 104 in server 53. Block 104 determines whether or not a buyer has requested to purchase a ticket. If block 104 determines that a buyer has not requested to purchase a ticket, the program goes back to the input of block 104. If block 100 determines that a buyer has requested to purchase a ticket, the program goes to the input of block 105 to request information from the buyer regarding how the buyer is going to pay for the ticket. Then the program goes to block 106 in computer 50 where the buyer provides the requested payment information, i.e. issuer of credit card, name on credit card, credit card account number, credit card expiration date, etc. Now the program goes back to block 105, where the information provided by the buyer is collected. Now the program goes to decision block 107. Block 107 determines whether or not the buyer has paid for the ticket(s). If block 107 determines that the buyer has not paid for the ticket(s) the program goes back to the input of block 107. If block 107 determines that the buyer has paid for the ticket(s), the program goes to the input of decision block 108 in computer 50 and the input of block 109 in server 53 (Fig. 6B). Block 108 determines whether or not an image of ticket 11 is present. If block 108 determines that an image of ticket 11 is not present, the program goes back to the input of block 108. At this point, block 109 in server 53 transfers user and venue data to ticket data center 51, i.e., decision block 112 in data center 51, and saves the transaction data in block 110 (seating data base 69). Decision block 112 determines whether or not a new ticketing request has been received. If block 112 determines that a new ticketing request has not been received, the program goes back to the input of block 112. If block 112 determines that a new ticketing request has been received, the program goes to the input of block 113. Block 113 opens a new record file and stores the record in data buffer 68 (Fig. 5). Then the program goes to block 114 to connect to personal computer 50 and send the ticket issuing screens. Now the program goes to block 115 in computer 50 to provide the printer and printing information as requested. Then the program goes to decision block 116. Decision block 116 determines whether or not printer data has been input to data center 51. If block 116 determines that printer data has not been input to data center 51, the program goes back to the input of block 116. If block 116 determines that printer data has been input to data center 51 , the program goes to the input of block 117 (Fig. 6C). After saving the seating data i.e., price of the seat for a particular place and time, from buffer 69 of block 110 (Fig. 6B), the program goes to decision block 111 (Fig. 6F). Block 111 determines whether or not an image of ticket 11 has been sent to computer 50. If block 111 determines that an image of ticket 11 has not been sent to computer 50, the program goes back to the input of block 111. As previously mentioned, the "yes" output of block 116 is sent to the input of block 117 (Fig. 6C). Block 117 stores the printer parameters in buffer 68 (Fig. 5). Now the program goes to block 118 to obtain information regarding the printer from printing and printer database 65 (Fig. 5). Then the program goes to the input of decision block 119. Decision block 119 determines whether or not the printer is capable of printing graphic field 21. If block 119 determines that the printer is not capable of printing graphic field 21 , the program goes to the input of block 121. Block 121 offers the buyer other ticket delivery options, i.e., receive ticket 11 at data center 51 or have the ticket mailed to the buyer, etc. The buyer then makes new delivery choices in block 122 in computer 50. Then the program goes to block 123 to produce and deliver the ticket to the buyer in accordance with the buyer's selected choices. If block 119 determines that the printer is not capable of printing graphic field 21, the program goes to the input of block 125. Block 125 obtains information regarding the number of dots per inch the printer is using from buffer 68 (Fig. 5). At this point, the program goes to decision block 126. Block 126 determines whether or not the printer dots per inch setting is adequate to print graphic field 21 with the printer that is being used. If block 126 determines that the number of dots per inch setting is inadequate to print graphic field 21 , the program goes to block 127 to change the setting. Then the program goes to block 128 in computer 50 where the operating system of computer 50 or the buyer resets the dots per inch setting of the printer. Now the program goes back to block 126 in data center 51. If block 126 determines that the number of dots per inch setting is adequate to print graphic field 21, the program goes to block 129 in data center 51 (Fig. 6D) to store the printer parameters in buffer 68 (Fig. 5). Now the program goes to block 130 to look up the printer exposure in printing and printer database 65 (Fig. 5). Then the program goes to decision block 131 to determine whether or not the printer exposure setting is correct. If block 131 determines that the printer exposure setting is incorrect, the program goes to block 133 in computer 50 where the operating system of computer 50 or the buyer makes the requested changes. Now the program goes back to block 131 in data center 51. If block 131 determines that the printer exposure setting is adequate to print graphic field 21, the program goes to block 134 to look up the optimum toner/ink setting in data base 65 (Fig. 5). Then the program goes to decision block 135 to determine whether or not the toner/ink setting is adequate to print graphic field 21. If block 135 determines that the toner/ink setting is incorrect, the program goes to block 136 to change setting request. Then the program goes to block 137 in computer 50 where the operating system of computer 50 or the buyer makes the requested changes. Now the program goes back to block 135 in data center 51. If block 135 determines that the toner/ink setting is adequate to print graphic field 21 , the program goes to block 140 in data center 51 (Fig. 6E) to open an archive file record in archive 66. Then the program goes to block 141 to compose the image of ticket 11 from data buffer 68. Then the program goes to block 142 to compose and add graphic field 21 to the image. Now the program goes to block 143 to compute and add proof code 63 to image file. At this point, the program goes to block 144 to archive the image file in issue ticket images data archive 66. Then the program goes to block 145 to send the image file and a query screen to computer 50. Now the program goes to block 146 in computer 50 to print the image file and to block 149 to display a request to the purchaser regarding the status of the printed ticket. Then the program goes to block 150 in computer 50 where the buyer replies with the ticket printing status. Then the program goes to decision block 148. Block 148 determines from the buyer whether or not the image on ticket 11 was printed. If block 148 determines that ticket 11 was not printed correctly, the program goes to block 123 to produce a ticket and deliver a ticket to the purchaser. Then the program goes to block 160. Now the program goes back to block 148 in data center 51. If block 148 determines that the image was printed, the program goes to block 160 in data center 51 (Fig. 6F) to open an archive file and time stamp a record closed. At this point, the program goes to block 161 to notify seller server 53 that ticket 11 has been sent to computer 50 and printed by printer 55. Then the program goes back to the input of decision block 111 in seller server 63. If block 111 determines that a image of ticket 11 has been sent to computer 50 by data center 51, the program goes to the input of block 156 (Fig. 6F) to record the delivery of ticket 11 and close the record file. After going to block 161, the program goes to block 162 to disconnect from computer 50. Then the program goes to block 163 to disconnect from computer 53. Then the program goes to block 164 and back to block 112 to wait for a new ticketing request. After going to block 157, the program goes to block 100 to wait for a new ticketing request. The above specification describes a new and improved method for determining the printer and paper that are used to print an electronic ticket. It is realized that the above description may indicate to those skilled in the art additional ways in which the principles of this invention may be used without departing from the spirit. Therefore, it is intended that this invention be limited only by the scope of the appended claims.

Claims: WHAT IS CLAIMED IS: 1. A method for producing electronic tickets, comprising the steps of: checking characteristics of a buyers printer that is going to print a graphic field on the ticket that will change in appearance when the ticket is reproduced by either scanning/printing and/or photocopying, and printing the ticket on the buyer's printer if the checked characteristics are acceptable. 2. The method claimed in claim 1 , wherein the graphic field is a plurality of detectable half tone gray steps when printed by a personal computer printer. 3. The method claimed in claim 2, wherein a human eye will perceive the graphic field to vary from black to gray to white. 4. The method claimed in claim 1, wherein the graphic field is a continuum of spots that slowly vary from small white backgrounds with large black spots to small black spots on a white background. 5. The method claimed in claim 4, wherein the size of the spots are below the resolution limit of the human eye. 6. The method claimed in claim 1, wherein the scanning/printing and/or photocopying process will produce mottle in a gray zone in the graphic field. 7. The method claimed in claim 1 , wherein the scanning/printing and/or photocopying processes will produce bands in the graphic field. 8. The method claimed in claim 1, wherein the electronic ticket may be ordered over the Internet. 9. The method claimed in claim 1 , further including the steps of: recording a test pattern on a material after the checking step so that a purchaser will be able to check the print quality of the printer before the ticket is printed. 10. The method claimed in claim 1, wherein a characteristic of the printer is the manufacturer of the printer. 11. The method claimed in claim 10, wherein a characteristic of the printer is the model number of the printer. 12. The method claimed in claim 11, wherein a characteristic of the printer is the printer settings of the printer. 13. The method claimed in claim 10, wherein the checking step further including the step of: determining ink characteristics of the ink used to print the ticket. 14. The method claimed in claim 10, wherein the checking step further including the step of: determining toner characteristics of the toner used to print the ticket. 15. The method claimed in claim 10, wherein the checking step further including the step of: determining paper characteristics of the paper used in printing the ticket. 16. The method claimed in claim 1, further including the step of: printing the ticket at a data center printer if the checked characteristics are not acceptable. 17. The method claimed in claim 16, further including the step of: delivering the ticket printed at the data center printer to the buyer. 18. The method claimed in claim 16, further including the step of: having the buyer pick up the ticket at the data center computer. AMENDED CLAIMS [received by the International Bureau on 26 October 2001 (26.10.01); original claim 2 cancelled; original claims 1 and 3 amended; remaining claims unchanged (1 page)] 1, (Amended) A method for producing electronic tickets, comprising the steps of: checking characteristics of a buyer's personal computer printer that is going to print a graphic! field comprising a plurality of half tone gray steps on the ticket that will change jin appearance when the ticket is reproduced by either scanning/printing and/of photocopying, and printing the tickejt on the buyer's printer if the checked characteristics are acceptable. 3. (Amended) The method claimed in claim 1 , wherein a human eye will perceive the graphic fielld to vary from black to gray to white. 4. The method claimed in claim 1 , wherein the graphic field is a continuum of spots that slowly vary ' from small white backgrounds with large black spots to small black spots on a yvhite background. 5. The method claimed in claim 4, wherein the size of the spots are below the resolution limit of the human eye. 6. The method claimed in claim 1, wherein the scanning/printing and/or photocopying process till produce mottle in a gray zone in the graphic field.

Inventors: SANSONE RONALD P, SANSONE, RONALD, P.
Applicants: PITNEY BOWES INC, PITNEY BOWES INC.
Application year: 2001
Main classification: G06F15
IPC codes: G06K15, G07B1, G07B15