Patent Publication Number: US-7218916-B2

Title: Portable radio communication apparatus

Description:
This application is a divisional of application Ser. No. 08/502,204 filed Jul. 13, 1995 now U.S. Pat. No. 6,228,500. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to portable radio communication apparatus such as a digital mobile phone having a two-way message transmitting/receiving function for use mainly in the filed of mobile communication. 
     2. Description of the Related Art 
     As an additional function for mobile phones, the SMS (Short Message Service) transmitting function in two-way message transmission is specified in GSM03.40 of GSM (Global System for Mobile communications) standard of the digital mobile phone standard which constitutes one of the European Telecommunications Standards (ETS),. The SMS functions to transmit a message of a maximum of 160 characters through a wireless circuit in opposite directions. 
     Construction of a conventional portable radio communication apparatus will be described below with reference to  FIGS. 19 and 20 .  FIG. 19  is a block diagram showing the construction of a portable radio communication apparatus having a conventional two-way message transmitting function.  FIG. 20  is a front view showing an external appearance of the portable radio communication apparatus of  FIG. 19 . 
     Referring to  FIG. 19 , the apparatus includes: an antenna  1  for transmitting/receiving a radio frequency signal; a radio section  2  for effecting a frequency conversion to a radio frequency or, for example, to an intermediate frequency; a modulator-demodulator section  3  operating for example in GMSK (Gaussian Filtered Minimum Shift Keying) modulating/demodulating method; a control section  4  having such as CPU, ROM, RAM for controlling the apparatus as a whole; a message memory  5  such as of RAM for temporarily storing a transmitting/received message; an operation section  6 ; a display section  7  such as of liquid crystal; a sound processing section  8 ; a microphone  9 ; and a speaker  10 . 
     In  FIG. 20 , Numerals  6   a ,  6   b  and  6   c  denote a function key section, a 10-key section and a volume key, respectively. 
     Further, in  FIG. 20 , the function key section  6   a  includes: PWR key for performing switching on/off of power supply; STO key serving as a registering key for abbreviated dialing phone numbers; FCN key serving as a function key capable of calling various functions by a combination with numeral keys; END key for terminating a communication; P key serving as “one-touch” dialing key for an instant originating of call to already registered phone numbers; RCL key serving as a calling key for abbreviated dialing phone numbers; CLR key serving as a clearing key; and SEND key serving as a transmitting/receiving key. The 10-key section  6   b  includes keys for Arabic numerals of 1, 2, 3, 9, 0, an asterisk (*) key and a sharp (#) key, the numeral keys and the like serving also as character keys (A, B, C,) as shown when operating in a character input mode. However, the numerical key “0” corresponds to an operator call and is incapable of character input. 
     Operation of the conventional radio communication apparatus will be described below. A received message signal of SMS enters the control section  4  for its decoding from the antenna  1  through the radio section  2  and modulator-demodulator section  3 . It is then displayed as a message by the display section  7  and may be recorded at the message memory  5  by an operation of the operation section  6 . 
     A transmitting message signal of SMS may be formed by inputting one character at a time by means of the 10-key section  6   b  using the alphabet of A, B, C at the 10-key section  6   b  while confirming it on the display section  7 . Upon a transmitting operation (SEND key) at the operation section  6 , the formed message is encoded at the control section  4  and is then transmitted from the antenna  1  through the modulator-demodulator section  3  and radio section  2 . 
     In forming a transmitting message with the conventional portable radio communication apparatus as described above, it has been necessary to input one character at a time through the operation section  6 . For this reason, there is a problem of inconvenience that inputting of one character at a time is required even for the messages which are formed by using identical words. 
     Another problem is that, since only the English alphabet is indicated on the operation section  6 , inputting by other languages cannot be performed. 
     In receiving a message, there is a problem that, while the received message is read as it is displayed on the display section  7 , it is difficult to be read if the number of characters that may be displayed on the display section  7  is small. 
     Further, if the receiving side is absent, a problem of inconvenience occurs in case of an emergency, since no response will be received by the party originating the message and no transfer will be made. 
     Furthermore, there is a problem that it is impossible to find out when the message was received or originated, since no function is provided for concurrently recording the time of receiving and originating at the time of receiving/transmitting a message. 
     SUMMARY OF THE INVENTION 
     To solve the above described problems, it is an object of the present invention to provide a portable radio communication apparatus in which a transmitting message may be readily formed. 
     It is another object of the present invention to provide a portable radio communication apparatus in which inputting by a language other than the English language is possible. 
     It is another object of the present invention to provide a portable radio communication apparatus in which the content of a received message may be easily perceived even when the number of characters that may be displayed on a display section is small. 
     It is another object of the present invention to provide a portable radio communication apparatus in which automatic answering or automatic transferring in case of users absence is possible. 
     It is another object of the present invention to provide a portable radio communication apparatus in which the time of originating/receiving a call is readily identified. 
     A portable radio communication apparatus according to the present invention comprises: 
     an antenna for transmitting/receiving a radio frequency message signal; 
     a radio/modulator-demodulator section for demodulating a received radio frequency message signal by converting its frequency and for modulating a transmitting message signal to effect its frequency conversion into a radio frequency; 
     a message memory for storing transmitting/received messages; 
     a display section for displaying the transmitting/received messages; 
     a pre-message memory for previously storing a plurality of fixed messages; 
     an operation section; and 
     a control section for selecting one of the plurality of fixed messages stored in the pre-message memory by an operation of the operation section while causing it to be displayed on the display section to complete a desired message by adding another message thereto and for transmitting the desired message. 
     Accordingly, a desired message may be readily formed. 
     A portable radio communication apparatus according to the present invention comprises: 
     an antenna for transmitting/receiving a radio frequency message signal; 
     a radio/modulator-demodulator section for demodulating a received radio frequency message signal by converting its frequency and for modulating a transmitting message signal to effect its frequency conversion into a radio frequency; 
     a message memory for storing transmitting/received messages; 
     a display section for displaying the transmitting/received messages; 
     an alphabet memory for previously storing a plurality of alphabets of languages; 
     an operation section; and 
     a control section for selecting and confirming one of the plurality of language names of the alphabets stored in the alphabet memory while displaying them on the display section by an operation of the operation section. 
     Accordingly, a language other than the English language may be used on the apparatus. 
     A portable radio communication apparatus according to the present invention comprises: 
     an antenna for transmitting/receiving a radio frequency message signal; 
     a radio/modulator-demodulator section for demodulating a received radio frequency message signal by converting its frequency and for modulating a transmitting message signal to effect its frequency conversion into a radio frequency; 
     a message memory for storing transmitting/received messages; 
     a display section for displaying the transmitting/received messages; 
     a message sound converting data memory for storing information necessary for a conversion into sound of a received message; 
     a sound processing section for outputting from a speaker the received message which has been converted into a sound; 
     an operation section; and 
     a control section for selecting one of the received messages and for transferring it to the message sound converting data memory by an operation of the operation section. 
     Accordingly, the content of a received message may be readily perceived. 
     A portable radio communication apparatus according to the present invention comprises: 
     an antenna for transmitting/receiving a radio frequency message signal; 
     a radio/modulator-demodulator section for demodulating a received radio frequency message signal by converting its frequency and for modulating a transmitting message signal to effect its frequency conversion into a radio frequency; 
     a message memory for storing transmitting/received messages; 
     a display section for displaying the transmitting/received messages; 
     an automatic answering message memory for storing registered call originator IDs and response message corresponding to the IDs; 
     an operation section; and 
     a control section for selecting an automatic answering in case of users absence by an operation of the operation section and for transmitting the answering message corresponding to a registered call originator ID when a match occurs between a call originator ID in the received message and the registered call originator ID in the automatic answering message memory. 
     Accordingly, it is possible in case of users absence to respond to the party at the other end of communication. 
     A portable radio communication apparatus according to the present invention comprises: 
     an antenna for transmitting/receiving a radio frequency message signal; 
     a radio/modulator-demodulator section for demodulating a received radio frequency message signal by converting its frequency and for modulating a transmitting message signal to effect its frequency conversion into a radio frequency; 
     a message memory for storing transmitting/received messages; 
     a display section for displaying the transmitting/received messages; 
     a timer section for measuring the current time; and 
     a control section for concurrently storing as a reception time data the current time read out from the timer section when storing a received message to the message memory and for concurrently displaying the reception time data when displaying the received message on the display section. 
     Accordingly, it is easy to know the reception time of a received message. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a block diagram showing the construction of a portable radio communication apparatus according to Embodiment 1 of the present invention; 
         FIG. 2  is a flowchart showing the operation of Embodiment 1 of the present invention; 
         FIG. 3  is a block diagram showing the construction of a portable radio communication apparatus according to Embodiment 2 of the present invention; 
         FIG. 4  is a flowchart showing the operation of Embodiment 2 of the present invention; 
         FIG. 5  is a block diagram showing the construction of a portable radio communication apparatus according to Embodiment 3 of the present invention; 
         FIG. 6  is a flowchart showing the operation of Embodiment 3 of the present invention; 
         FIG. 7  is a block diagram showing the construction of a portable radio communication apparatus according to Embodiment 4 of the present invention; 
         FIG. 8  is a flowchart showing the operation of Embodiment 4 of the present invention; 
         FIG. 9  is a block diagram showing the construction of a portable radio communication apparatus according to Embodiment 5 of the present invention; 
         FIG. 10  is a flowchart showing the operation of Embodiment 5 of the present invention; 
         FIG. 11  is a block diagram showing the construction of a portable radio communication apparatus according to Embodiment 6 of the present invention; 
         FIG. 12  is a flowchart showing the operation of Embodiment 6 of the present invention; 
         FIG. 13  is a block diagram showing the construction of a portable radio communication apparatus according to Embodiment 7 of the present invention; 
         FIG. 14  is a flowchart showing the operation of Embodiment 7 of the present invention; 
         FIG. 15  is a block diagram showing the construction of a portable radio communication apparatus according to Embodiment 8 of the present invention; 
         FIG. 16  is a flowchart showing the operation at the time of receiving of Embodiment 8 of the present invention; 
         FIG. 17  is a flowchart showing the operation at the time of transmitting of Embodiment 8 of the present invention; 
         FIG. 18  is a flowchart showing the operation at the time of transmitting of Embodiment 8 of the present invention; 
         FIG. 19  is a block diagram showing the construction of a conventional portable radio communication apparatus; and 
         FIG. 20  is a front view showing the external appearance of a conventional portable radio communication apparatus. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Embodiment 1 
     The construction of Embodiment 1 of the present invention will be described below with reference to  FIG. 1 .  FIG. 1  is a block diagram showing the construction of Embodiment 1 of the present invention. Here, the external appearance of the portable radio communication apparatus according to Embodiment 1 is substantially identical to the conventional apparatus as shown in  FIG. 20 . The same can be said with respect to all the embodiments hereinbelow. It should be noted that like numerals in the drawings denote like or corresponding component parts. 
     Referring to  FIG. 1 , a portable radio communication apparatus according to Embodiment 1 comprises: an antenna  1  for transmitting/receiving a radio frequency signal; a radio section  2  for effecting a frequency conversion into a radio frequency or, for example, into an intermediate frequency; a modulator-demodulator section  3  operating for example in GMSK modulating/demodulating method; a control section  4  having such as CPU, ROM, RAM for controlling the apparatus as a whole; a message memory  5  such as of RAM for temporarily storing transmitting/received messages; an operation section  6 ; a display section  7  such as of liquid crystal; a sound processing section  8 ; a microphone  9 ; a speaker  10 ; and a pre-message memory  12  for storing fixed messages. 
     The above operation section  6  includes a function key section  6   a , a 10-key section  6   b  and a volume key  6   c.    
     Further, the above described function key section  6   a  includes: PWR key for performing switching on/off of power supply; STO key serving as a registering key for abbreviated dialing phone numbers; FCN key serving as a function key capable of calling various functions by a combination with numeral keys; END key for terminating a communication; P key serving as “one-touch” dialing key for an instant originating of call to already registered phone numbers; RCL key serving as a calling key for abbreviated dialing phone numbers; CLR key serving as a clearing key; and SEND key serving as a transmitting/receiving key. The above described 10-key section  6   b  includes keys for the numerals of 1, 2, 3, 9, 0, an asterisk (*) key and a sharp (#) key, the numeric keys and the like serving also as character keys for an alphabet when operating in a character input mode. 
     The pre-message memory  12  comprises such as a ROM for previously storing fixed messages each consisting of fixed statement or fixed words such as “CALL OFFICE AT XX:XX”. 
     In Embodiment 1, standardized messages consisting of fixed statements or fixed words which are frequently used in ordinary situations are previously stored in the pre-message memory  12 . The user can readily form a desired message by a small number of times of key operation by selecting a fixed message while displaying it on the display section  7  by means of an operation of the operation section  6 . 
     Operation of Embodiment 1 will be described below with reference to  FIG. 2 . It should be noted that, since its fundamental operation such as the two-way message transmitting/receiving operation is identical to the conventional apparatus and thus will not be described below. The same can be said to the other embodiments thereafter. 
     A case will be described below of forming and transmitting, for example, a transmitting message “CALL OFFICE AT 03:00”. 
     At step  30 , upon an operation of the FCN key in the operation section  6 , the control section  4  selects “read fixed message” which effects a read-out of fixed messages from the pre-message memory  12 . At step  31 , the control section  4  sequentially reads out the fixed messages within the pre-message memory  12  to the screen of the display section  7  by an operation of the volume key  6   c  in the operation section  6 . 
     At step  32 , the control section  4  then selects “CALL OFFICE AT XX:XX” from the fixed messages upon an operation of the END key in the operation section  6 . The control section  4  then at step  33  moves an input position (cursor position) to the leading position of XX:XX upon an operation of the volume key  6   c  in the operation section  6 . The control section  4  at step  34  then inputs 03:00 to XX:XX by an operation of the numeral keys in the operation section. In this manner, a message “CALL OFFICE AT 03:00” is complete at step  35 . The control section  4  then transmits this message by an operation of the SEND key in the operation section  6 . 
     The portable radio communication apparatus according to Embodiment 1 has a two-way message transmitting/receiving function and, in addition, has the pre-message memory  12  in which a plurality of character strings are previously stored. Since any of the plurality of character strings may be selected and transmitted as a transmitting message as it is or in a partially added or corrected manner, it is possible to readily form a desired transmitting message. 
     Embodiment 2 
     The construction of Embodiment 2 of the present invention will now be described with reference to  FIG. 3 .  FIG. 3  is a block diagram showing the construction of Embodiment 2 of the present invention. 
     Referring to  FIG. 3 , a portable radio communication apparatus according to Embodiment 2 comprises: an antenna  1 ; a radio section  2 ; a modulator-demodulator section  3 ; a control section  4 ; a message memory  5 ; an operation section  6 ; a display section  7 ; a sound processing section  8 ; a microphone  9 ; a speaker  10 ; and a pre-message memory  13  formed of a RAM capable of maintaining its content by means of a battery  14 . 
     The above operation section  6  includes a function key section  6   a , a 10-key section  6   b  and a volume key  6   c.    
     By providing the above described pre-message memory  13 , the user is able to form and register fixed messages (for example a name of company as “MELCO”) of ones own in addition to the previously determined messages, by combining fixed statements or fixed words. A desired message may be formed more readily and with less number of times of key operation. 
     Operation of Embodiment 2 will now be described with reference to  FIG. 4 . A case will be described below for example of forming a message of the company name “MELCO”. 
     At step  40 , the control section  4  selects “message forming” upon an operation of FCN key. At step  41 , when the numeral key “5” is pressed once, the control section  4  selects the character “M”. Thereafter, at steps  42  to  45 , the control section  4  selects: a character “E” when the numeral key “2” is pressed two times; a character “L” when the numeral key “4” is pressed three times; a character when the numeral key “1” is pressed three times; and a character “0” when the numeral key “5” is pressed three times. 
     In steps  46  to  48 , the message “MELCO” is complete and the control section  4  registers the message to the pre-message memory  13  by means of an operation of the END key. 
     Embodiment 3 
     The construction of Embodiment 3 of the present invention will now be described with reference to  FIG. 5 .  FIG. 5  is a block diagram showing the construction of Embodiment 3 of the present invention. 
     Referring to  FIG. 5 , a portable radio communication apparatus according to Embodiment 3 comprises: an antenna  1 ; a radio section  2 ; a modulator-demodulator section  3 ; a control section  4 ; a message memory  5 ; an operation section  6 ; a display section  7 ; a sound processing section  8 ; a microphone  9 ; a speaker  10 ; an alphabet memory  15  formed of a ROM or the like storing a multi-lingual alphabet; and a language selection operation key  16 . 
     The above operation section  6  includes a function key section  6   a , a 10-key section  6   b  and a volume key  6   c . The above described language selection key  16  may be provided as an addition, for example, to the function key section  6   a.    
     In the conventional apparatus, since only the keys for the English alphabet such as the 10-key section  6   b  shown in  FIG. 20  are provided, its operation may be effected only in the English language. In areas such as Europe where a multiple of languages are used, however, a different alphabetical notation exists for each language and its selection is required. Provided thus in Embodiment 3 are the alphabet memory  15  storing a multi-lingual alphabet for the languages of French, German, Russian, Italian, Greek and Latin, and the language selection operation key  16 . It is thereby possible to readily select any of a plurality of languages. 
     Operation of Embodiment 3 will be described below with reference to  FIG. 6 . 
     At step  50 , the control section  4  selects “multi-lingual selection function” upon an operation of the language selection operation key  16 . At step  51 , the control section  4  then selects by an operation of the volume key  6   c  the name of a selected language from the names of languages displayed on the screen of the display section  7  as “French, German, Russian, Italian, Greek, Latin”. It is also possible that selection be made by an operation of the language selection operation key  16 . 
     Next, at step  52 , the control section  4  confirms the selection by an operation of the END key. At step  53 , the section of memory corresponding to the selected language of the alphabet memory  15  storing the multi-lingual alphabet is to be used at the time of inputting by character. In other words, when, for example, the Greek language (character) is selected and the numeral key “1” is pressed once, an “α” is displayed on the display section  7  instead of an “A”. 
     Since, with Embodiment 3, one of the alphabets of a plurality of languages may be selected, a language other than the English language may be used. It should be noted that, instead of additionally providing the language selection operation key  16 , a combination of existing keys may be used as the language selection operation key. For example, the language selection operation key may be formed by a combination of FCN key and numeral keys. 
     Embodiment 4 
     The construction of Embodiment 4 of the present invention will now be described with reference to  FIG. 7 .  FIG. 7  is a block diagram showing the construction of Embodiment 4 of the present invention. 
     Referring to  FIG. 7 , a portable radio communication apparatus according to Embodiment 4 comprises: an antenna  1 ; a radio section  2 ; a modulator-demodulator section  3 ; a control section  4 ; a message memory  5 ; an operation section  6 ; a display section  7 ; a sound processing section  8 ; a microphone  9 ; a speaker  10 ; an alphabet memory  15  formed of a ROM or the like storing a multi-lingual alphabet; a language selection operation key  16 ; and an alphabet symbol selection key  17 . 
     The above operation section  6  includes a function key section  6   a , a 10-key section  6   b  and a volume key  6   c . The above described language selection key  16  and alphabet symbol selection key  17  may be provided as additions, for example, to the function key section  6   a.    
     In Embodiment 4, in order to facilitate not only the language selection but also the selection of characters of the selected language, the alphabet symbol selection key  17  is provided to make possible a peculiar character selection for each language. 
     Operation of Embodiment 4 will now be described with reference to  FIG. 8 . A case will be described below for example of forming a Greek character string “α β γ”. 
     At step  60 , the control section  4  selects a desired language such as the Greek language by an operation of the language selection operation key  16  and then enters “character input mode” by an operation of the alphabet symbol selection key  17 . Next, at step  61 , the control section  4  displays a character string such as “α β γ . . . ” corresponding to the selected language in a row at the lower portion of the screen frame of the display section  7 . Next, at step  62 , a desired character “α” is selected by an operation of the volume key (cursor key)  6   c . Next, at step  63 , the control section  4  confirms this by an operation of the END key. 
     Similarly, in steps  64  to  68 , the control section  4  selects a desired character “β” by an operation of the volume key  6   c  and confirms it by an operation of the END key. Further, the control section  4  selects a desired character “γ” by an operation of the volume key  6   c  and confirms it by an operation of the END key. A Greek character string “α β γ” is thus complete. In this manner, characters may be readily selected to form a word or message. 
     In Embodiment 4, a message of a language other than the English language may readily be formed. It should be noted that, instead of additionally providing the language selection operation key  16  and alphabet symbol selection key  17 , a combination of existing keys may be used as the language selection operation key and alphabet symbol selection key. For example, the language selection operation key and alphabet symbol selection key may be formed by a combination of FCN key and numeral keys. 
     Embodiment 5 
     The construction of Embodiment 5 of the present invention will now be described with reference to  FIG. 9 .  FIG. 9  is a block diagram showing the construction of Embodiment 5 of the present invention. 
     Referring to  FIG. 9 , a portable radio communication apparatus according to Embodiment 5 comprises: an antenna  1 ; a radio section  2 ; a modulator-demodulator section  3 ; a control section  4 ; a message memory  5 ; an operation section  6 ; a display section  7 ; a sound processing section  8 ; a microphone  9 ; a speaker  10 ; an alphabet memory  15  formed of a ROM or the like storing a multi-lingual alphabet; an alphabet symbol selection key  17 ; and an IC card interface section  18  capable of mounting an ID card  19  such as an IC card. 
     The above operation section  6  includes a function key section  6   a , a 10-key section  6   b  and a volume key  6   c . The above described alphabet symbol selection key  17  may be provided as an addition, for example, to the function key section  6   a . Further, the above described IC card interface section  18  may be provided for example on a side or back surface of the apparatus. 
     In a system such as GSM using the subscriber ID card  19  in which its home system is recorded, it is possible to automatically select a language based on the nationality of such home system. Therefore, in Embodiment 5, the IC card interface  18  is provided on the apparatus. 
     Operation of Embodiment 5 will now be described with reference to  FIG. 10 . 
     In steps  70  to  71 , when the subscriber ID card  19  has been mounted to the IC card interface section  18 , the control section  4  reads out a home system information within the subscriber ID card  19  through the IC card interface section  18 . 
     Next, at step  72 , the control section  4  collates the read home system information by a known home system information versus a nationality management table which is located within an internal memory. Next, at step  73 , the control section  4  automatically executes a language selection based on the nationality information obtained by the collation. The control section  4  then informs the user by the display section  7  of the selected language. If, for example, the nationality information is related to Greek, the fact that the Greek language has been selected is displayed on the display section  7 . Accordingly, the language of the user who owns the ID card  19  is automatically selected, thereby achieving simpler operation and easier handling of the apparatus. 
     In Embodiment 5, since a desired language is automatically selected, selecting operation of the language is unnecessary and it is easy to form a message in a desired language. 
     Embodiment 6 
     The construction of Embodiment 6 of the present invention will now be described with reference to  FIG. 11 .  FIG. 11  is a block diagram showing the construction of Embodiment 6 of the present invention. 
     Referring to  FIG. 11 , a portable radio communication apparatus according to Embodiment 6 comprises: an antenna  1 ; a radio section  2 ; a modulator-demodulator section  3 ; a control section  4 ; a message memory  5 ; an operation section  6 ; a display section  7 ; a sound processing section  8 ; a microphone  9 ; a speaker  10 ; a message sound converting data memory  20  for storing necessary information for converting a received message into a sound; and a message sound output starting key  21 . 
     The above operation section  6  includes a function key section  6   a , a 10-key section  6   b  and a volume key  6   c . The above described message sound output starting key  21  may be provided as an addition, for example, to the function key section  6   a.    
     If the number of characters which may be displayed on the display section  7  is small, it may be difficult to comprehend a received message. In other words, if the received message is longer than the number of characters which may be displayed on the display section  7 , for example, when the received message consists of 160 characters while the display section is of 20 characters, it is impossible to read the entire message without scrolling the screen. Thus, in Embodiment 6, the message sound converting data memory  20  is connected to the control section  4  and the sound processing section  8 . 
     Accordingly, the control section  4 , upon an operation of the message sound output starting key  21 , provides notation data of the received message stored in the message memory  5  to the message sound converting data memory  20 . Thereby, as each notation data is converted into a sound data and is delivered to the sound processing section  8 , it is reproduced as a sound message from the speaker  10 . It is thus easy to know the content of the received message even when it is a long message. 
     Operation of Embodiment 6 will now be described with reference to  FIG. 12 . 
     At step  80 , the control section  4  selects “display received message” by an operation of the FCN key. Next, at step  81 , the control section  4  selects the received message to be read out from the message memory  5  by an operation of the volume key  6   c . Next, in steps  82  to  83 , the control section  4 , upon an operation of the message sound output starting key  21 , transfers notation data of the selected received message within the message memory  5  to the message sound converting data memory  20 . 
     At step  84 , the control section  4  converts the notational data into a sound data by means of table conversion at the message sound converting data memory  20 . Next, at step  85 , the sound data is decoded by the sound processing section  8  and is output from the speaker  10  as a sound. 
     Embodiment 7 
     The construction of Embodiment 7 of the present invention will now be described with reference to  FIG. 13 .  FIG. 13  is a block diagram showing the construction of Embodiment 7 of the present invention. 
     Referring to  FIG. 13 , a portable radio communication apparatus according to Embodiment 7 comprises: an antenna  1 ; a radio section  2 ; a modulator-demodulator section  3 ; a control section  4 ; a message memory  5 ; an operation section  6 ; a display section  7 ; a sound processing section  8 ; a microphone  9 ; a speaker  10 ; and an automatic answering message memory  22  formed of RAM or the like and storing answering message and/or address for transfer. 
     The above operation section  6  includes a function key section  6   a , a 10-key section  6   b  and a volume key  6   c.    
     If a message has been automatically received in case of users absence, no response will be made to the party at the other end of communication though the received message is stored to the message memory  5 . Thus, in Embodiment 7, the automatic answering message memory  22  is provided, which stores answering message and/or transfer address corresponding to ID. 
     If a match occurs upon a collation between the ID in a received message and a destination ID for each answering message stored in the automatic answering message memory  22 , the control section  4  automatically answers by reading out the answering message. Further, by storing a transfer address to the automatic answering message memory  22  instead of an answering message, the received message may be automatically transferred. 
     Operation of Embodiment 7 of the present invention will now be described with reference to  FIG. 14 . 
     At step  90 , upon an operation of the FCN key, the control section  4  selects “automatic answering message forming function”. Next, at step  91 , the control section  4  forms an answering message or transfer address by an operation of the numeral keys, etc. Next, at step  92 , by an operation of the numeral keys, etc., the control section  4  inputs a registered call originator ID to which a designated answering is desired. Next, at step  93 , the control section  4  stores the formed answering message or transfer address and the relevant registered call originator ID to the automatic answering message memory  22  by an operation of the END key. 
     At step  94 , upon an operation of the FCN key, the control section  4  selects “automatic answering in case of users absence” by which an automatic response is made when the user is absent. Next, in steps  95  to  96 , upon receiving a message, the control section  4  collates the call originator ID in the received message with the registered call originator ID in the automatic answering message memory  22 . 
     At step  97 , if the IDs match each other, the control section  4  reads out the relevant answering message from the automatic answering message memory  22  and automatically transmits it to the originating party of the above message. Alternatively, if the transfer address is registered, the control section  4  transfers the received message to the transfer address. 
     At step  98 , if the IDs do not match, the control section  4  does not effect an automatic answering. Also, no transferring will be made. 
     In Embodiment 7, since an answering message and call originator ID to which the answering is designated are stored to the automatic answering message memory  22 , it is possible in case of users absence to respond to the party at the other end of communication. Further, since a transfer address and call originator ID for designating an answering operation are stored to the automatic answering message memory  22 , the user of the apparatus is able to know the content of a message even when he/she is absent. 
     Embodiment 8 
     The construction of Embodiment 8 of the present invention will now be described with reference to  FIG. 15 .  FIG. 15  is a block diagram showing the construction of Embodiment 8 of the present invention. 
     Referring to  FIG. 15 , a portable radio communication apparatus according to Embodiment 8 comprises: an antenna  1 ; a radio section  2 ; a modulator-demodulator section  3 ; a control section  4 ; a message memory  5 ; an operation section  6 ; a display section  7 ; a sound processing section  8 ; a microphone  9 ; a speaker  10 ; and a timer section  23  for measuring the current time. 
     The above operation section  6  includes a function key section  6   a , a 10-key section  6   b  and a volume key  6   c.    
     In Embodiment 8, by providing the timer section  23 , it is possible to record a received message together with its reception time, to automatically insert time of transmitting operation into the transmitting message and/or to automatically transmit it at a certain point in time. 
     Operation of Embodiment 8 of the present invention will now be described with reference to  FIGS. 16 to 18 . 
     First, the case will be described below of recording the received message together with its reception time. 
     In steps  100  to  101 , upon a reception of message, the control section  4  reads out the current time from the timer section  23 . Next, at step  102 , the control section  4  concurrently stores the above read out current time when storing the received message to the message memory  5 . Next, at step  103 , the control section  4  displays the concurrently stored current time data as a reception time data when displaying the received message on the screen of the display section  7 . Accordingly, the reception time of a received message may readily be seen and recorded. 
     Next, the case will be described below of automatically inserting the time of transmitting operation into a transmitting message. 
     In steps  110  to  114 , the control section  4  forms a message by an operation of the FCN key, character key, etc., and, upon pressing of the SEND key, it reads the current time out from the timer section  23 . Next, the control section  4  inserts the above read out current time data into the transmitting message. The control section  4  then transmits the transmitting message through the modulator-demodulator section  3  and radio section  2 . Accordingly, the transmitting time of a transmitting message may readily be seen and recorded. 
     Further, the case will be described of automatically transmitting a message at a designated time. 
     In steps  120  to  122 , upon operation of the FCN key, numeral (character) keys, etc., the control section  4  forms a transmitting message and at the same time designates a point in time at which the message is to be transmitted. The control section  4  stores to the message memory  5  the transmitting message and the designated time for transmission by an operation of the END key. Next, in steps  123  to  125 , the control section  4  periodically reads the current time out from the timer section  23 . Next, the control section  4  effects a collation so as see if the read out current time data matches the designated time for transmission in the message memory  5 . When a match occurs, it transmits the relevant transmitting message through the modulator-demodulator section  3  and radio section  2 . Accordingly, it is possible to prevent a failure in remembering to send a message.