JPS623551A - Radiotelephony equipment - Google Patents

Abstract

PURPOSE:To obtain the secrecy while a telephone number incoming during absence is not observed by the 3rd party by storing a message from a caller as a decode data based on a DTMF signal into a memory and displaying a reference address of the memory onto the display device. CONSTITUTION:When an incoming call exists and the automatic answering mode setting flag is set to '1', a reply message data is read from a voice synthesis memory 2 to apply the data in parallel with the output side of a transmitter 5 via an amplifier 3 and switch 4. The state is in a data input waiting state from the caller side in this state and when the caller uses a dial button (ten-key) to operate the telephone number of the own station, the DTMF signal by this operation is inputted to an amplifier 9 via a radio channel. A CPU 13 displays a reference address of a RAM storing telephone numbers onto a display device 15 via an interface circuit 16. A caller telephone number data stored in the RAM is read by reproducing processing in response to the operation of a reproducing key and displayed on the display device 15.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a radio telephone device, etc. having an automatic response function that automatically answers a caller by voice when the called party is absent, etc. In particular, DTMF signals (Dual Tone Mu) transmitted from the calling party in response to key operations by the calling party
The present invention relates to a wireless telephone device having a function of storing predetermined information from a caller using a ti frequency signal).

[Technical background of the invention and its problems] As a telephone device having an automatic answering function that automatically answers a caller by voice when the called party is absent, there is a telephone device connected to a general subscriber line. Telephone devices are known, and such subscriber telephone devices are called answering machines and various types have been proposed. Basically, when a call signal arrives from the switching center when the called party is absent, this type of answering machine sends a voice message back to the caller indicating that the called party is absent, and then returns the caller to the caller. The voice message sent from the calling party is memorized, and when the called party returns, the voice message from the calling party is played back, allowing the user to know who called when the called party was absent. It is configured as follows.

By the way, in this type of answering machine, the voice message from the calling party is recorded by recording the voice message sent from the calling party (the other party's station) as it is on a recording device using magnetic tape or the like. It is. According to such a recording structure, it is necessary to record voice messages with an uncertain amount of information, it is necessary to use a recording device using magnetic tape, etc., and it is necessary to use a suitable small-sized recording device. As a result, the overall size of the device has to be increased.

Particularly recently, there has been an increasing demand for car telephones, dress telephones, etc., which have an automatic answering function and a function of automatically recording a message from the caller. However, if the configuration of the above-mentioned conventional answering machine is applied as is to car telephones, cordless telephones, etc., the overall size of the device will increase, causing problems in terms of securing installation space and portability, and making it impractical for practical use. It has the disadvantage of being difficult to use.

Therefore, the message from the calling party is sent as a DTMF signal (D
ual Tone Multi Frequency signal), that is, an alternating current signal (
By writing data corresponding to the DTMF signal in the memory and displaying the data formed by the PB double signal in accordance with the mode setting of the mode setting control means, it is possible to determine who called the telephone when the called party is absent, etc. A wireless telephone device has been proposed that allows the user to know the following information.

By the way, this type of device is configured so that when it receives a DTMF signal after setting the mode, it decodes the DTMF signal, stores the decoded data in a predetermined memory, and displays this data as it is on the display. ing. For this reason, the received data, ie, the telephone number of the other party's telephone device, can easily be seen by others, which is undesirable from the standpoint of confidentiality.

[Objective of the Invention 1] The present invention has been made in view of the above-mentioned points, and provides a wireless telephone device in which confidentiality can be maintained by not displaying the information of the received DTMF signal as it is. The purpose is to provide.

[Summary of the Invention] The present invention forms a message from a calling party using a DTME signal, writes data corresponding to this DTMF signal in a memory according to the mode setting of a mode setting control means, and
The above objective is achieved by displaying the write address of the data on the display.

[Embodiment of the Invention] FIG. 1 is a block diagram of a car telephone device showing an embodiment of the present invention.

In FIG. 1, 1 is a speech synthesis circuit, 2 is a memory for speech synthesis in which message information for a caller is stored in advance, and 3 is a speech synthesis circuit.
4 is an amplifier that amplifies the voice signal generated from the voice synthesis circuit 1; 4 is a switch that supplies the voice signal generated from the voice synthesis circuit 1 to the output side of the transmitter 5 in parallel when responding to a caller; 6 is a synthesis circuit that synthesizes the output signal of the transmitter 5 and the output signal of the switch 4; 7 is a telephone network control circuit that controls the formation of a wireless communication path with the car telephone exchange; 8 is a receiver; 9 is a car The calling center obtained through the telephone exchange (
DTMF sent based on the key operation of the other party's telephone device)
Signal (Dual Tone Multi Fre-qu
enCV signal) An amplifier that amplifies the so-called PB signal, 1
0 is a DTMF signal decoder that converts the DTMF signal obtained from the amplifier 9 into binary code data, 11 is a numeric keypad part for inputting dial numbers, etc., and 12 is an automatic answering function, call origination function, call termination function, etc. The control key part 13 for controlling has a memory element therein, and stores the own telephone number data and contact telephone number data input from the ten key part 11 in the memory element, and also stores the DTMF signal. A CPU system 14a that performs control to store binary code data (decoded data) output from the decoder 10 and clear data read from the memory element.
is a lamp indicating that the away mode is set, 14b
15 is a lamp indicating that binary code data based on the DTMF signal sent from the calling station is stored;
16 is an interface circuit for display; 17 is a speaker; 18 is a drive circuit for driving the speaker 17; The CPU system 13 reads the own telephone number data or the contact telephone number data from the internal memory element when a paging signal transmitted from the mobile telephone exchange in response to a call from the caller side is received, and It also performs control such that it is supplied to the voice synthesis circuit 1 along with predetermined message data stored in the synthesis memory 2 to synthesize a voice signal corresponding to these data.

FIG. 2 is a block diagram showing the detailed configuration of the CPU system 13 and its peripheral parts, which are the main parts of the present invention.
The system 13 includes a central processing unit (hereinafter referred to as CPU) 130 and three input ports 131 to 133.6.
two output boats 134.135.136a, 136b,
137° 138a, 138b, ROM 139 that stores a control program, RAM 140 that stores binary code data that is the output of the DTMF signal decoder along with own phone number data and contact phone number data, desired input/output port Address decoder 141 for selecting
It is equipped with Also, the number 11 is rOJ ~ "9"
number keys, asterisk key "Thursday" and number "#"
'', the control key part 12 includes a mode setting key 120, a call key 121, a playback key 122, and a clear key 123, and the on/off signal of each of these keys is sent to the input port 1.
33 to the data bus D-BIJS of the CPU 139.

Next, the operation of the car telephone device configured as described above will be explained according to the flowcharts shown in FIGS. 3 to 6.

First, the CPU 130 performs initial settings immediately after power is turned on (step 100), and determines whether the message key 120 has been operated (step 101). The message key 120 is for setting an automatic response function. Therefore, when this message key 120 is operated, the CPU 130 executes a mode setting processing routine for setting the automatic response function (step 102).
The operation in step 101 is re-executed. Next, if the message key 120 has not been operated, the CPU 130 determines whether or not the playback key 122 has been operated (step 103). The reproduction key 122 is used to read decoded data stored in a predetermined area of the RAM 140 based on the operation of the automatic response function. Therefore, this regeneration ′+−
122 is operated, the CPU 130
Step 10 reads out the decoded data stored in the memory and executes a reproduction process to display it on the display 15.
4), step 101 f, 11 operations are re-executed.

If the message key 120 and playback key 122 are not operated, the CPU 130 determines whether or not a call operation has been performed (step 105) and whether there is an incoming call (step 106), and determines that there is no call. Judging,
The operation of step 101 is executed again. Here, when a calling operation is performed, the CPU 130 performs a calling operation (step 106) and performs a mock call processing operation (step 113). Further, when receiving an incoming call signal SA via the telephone network control circuit 7 and determining that there is an incoming call, the CPU 130
supplies the control signal SB to the telephone network control circuit 7 and performs a call receiving operation to form a communication path with the calling party (step 108), then detects the state of the absent mode 1 setting flag, and in step 11# If there is, it will be considered to be away mode 1. Step 1
09), after executing the absent mode 1 processing routine (step 110), the operation of step 101 is executed again.

When the absence mode 1 setting flag is 03, the CPU 130 detects the state of the absence mode 2 setting flag, and when it is 11', it is determined to be the absence mode 2 (step 111), and executes the absence mode processing routine (step 112). After that, the operation of step 101 is executed again. If it is determined that the absentee mode 1 setting flag and the absentee mode 2 setting flag are 50#, the CPU 130 performs a call processing operation (step 113), and then executes the operation of step 101 again.

Next, each separate processing routine (steps 102, 110.
112) will be explained in detail.

(Mode setting processing routine) When the message key 120 is operated, the CPU 130 first starts counting the internal timer (step 200).
The states of the away mode 1 setting flag and the away mode 2 setting flag are detected, and at least one of the flags is '1'.
If it is 9, it is determined that the absentee mode 1 or the absentee mode 2 is set (step 201), and the count value of the internal timer is cleared (step 211). And the CPU
130 sets the absence mode 1 setting flag and the absence mode 2 setting flag to "O#". After (step 212), data for turning off the lamp 14a is outputted via the output port 137 (step 213), the setting states of away mode 1 and away mode 2 are canceled, and the mode setting processing routine (step 102) is performed. end. Away mode 1
Both the setting flag and the away mode 2 setting flag are '''01.
If it is determined that
30 detects a decoded data storage area in RAMll0 (step 202), and the CPU 130 detects how many decoded data pieces of a predetermined length can be stored in the storage area, and determines the decoded data that can be stored. Numerical data indicating the number is stored in the buffer 7 register and output to the interface circuit 16 via the output port 138a. Then, interface circuit-1
6 drives the number display key 15 to display the given numerical data, thereby displaying the number of decoded data of a predetermined length that can be stored (step 203). next,
In step 204, it is determined whether the "1" key of the numeric keypad portion 11 has been operated. Message key 120
When the "1" key on the numeric keypad section 11 is operated following this operation, the CPU 130 sets an absent mode 1 in which a contact telephone number is returned by voice in response to an incoming call.
The setting flag is set to '19 (step 205), data for lighting the lamp 14a is outputted via the output port 137 (step 214), and the operation of the mode setting processing routine (step 102) is ended. At this time, C
The PU 130 clears the count value of the internal timer (step 215).

In step 206, it is determined that the message key 120 has been operated, followed by the "2" key in the numeric keypad section 11.
), the CPU 130 reads the numerical data stored in the buffer register, and if the numerical data is not '09 (
Step 207), D from the calling party in response to the incoming call.
Set the absence mode 2 setting flag to ``11'' to set the absence mode 2 that stores decoded data based on the TMF signal (step 208), and output data to turn on the lamp 14a via the output port 137 (step 2).
14>, the operation of the mode setting processing routine (step 102) is ended. At this time, the CPU 130 clears the count value of the internal timer (step 215). If the numerical data is 101 (step 207), the CPU 130
It is determined that there is no storage area in AM140, and the output port 13
An alarm signal is sent to the drive circuit 18 via 8b.

Then, the drive circuit 18 drives the speaker 17 based on this alarm signal to generate an alarm sound (step 20).
9). Note that since the CPU 130 outputs the alarm signal only for a predetermined period, the speaker 17 generates an alarm sound only for a predetermined period. If the "1" and "2" keys of the numeric keypad section 11 are not operated following the operation of the message key 120, and the count value of the internal timer exceeds 12O8 (step 210), the CPU 130 updates the count value of the internal timer. After clearing, the mode setting processing routine (step 102
) ends the operation.

(Away Mode 1 Processing Routine) If there is an incoming call, and at this time the away mode 1 setting flag is set to '1#, the CPU 130 sets the value of the internal counter N to 1 (step 301). Also CPU13
0 turns on the switch 4 through the output port 136a, and also gives the first response message sending command to the speech synthesis circuit 1 through the output port 135 (step 3).
02).

Furthermore, by operating the numeric keypad section 11 in the RAM 140, the own telephone number data and the contact telephone number data which are registered in advance are read out and provided to the speech synthesis circuit 1 via the output port 135. Then, the speech synthesis circuit 1 which received the first response message sending command reads the first response message data from the speech synthesis memory 2 and combines this data with the own telephone number data and the contact telephone number data. First response message [This is ××XX
This is (home phone number), and I am currently away from my desk. If you are in a hurry, please contact us at xxxx (contact phone number). ” is synthesized, and amplifier 3
and is supplied in parallel to the output side of the transmitter 5 via the switch 4. Thereby, the first response message is sent back to the calling party via the telephone line. Once the first response message has been returned, the CPU 130 sets the value of the internal counter N to 2 (N=N+l) (step 303), and then determines whether the value of the internal counter N is 3 or not. (Step 304). Here, since it is N~3, the process returns to step 302, and the return message of the response message from cylinder 1 is repeated again.

The return of the first response message is repeated three times, that is, until the value of the internal counter N reaches 4 in the judgment at step 304. Thereafter, when it is determined in step 305 that the call has ended, the CPU 130 ends the operation of the absent mode 1 processing routine (step 110).

X Away Mode 2 Processing Routine) If there is an incoming call and the Away Mode 2 setting flag is set to 1', the CPU turns on the switch 4 via the output port 136a, and then sends the voice synthesis circuit 1 to the 2
A response message sending command is given via the output port 135 (step 401). Furthermore, CPU1
30 reads own telephone number data previously registered in the RAM 140 by operating keys on the numeric keypad section 11 and supplies it to the speech synthesis circuit 1 via the output port 135. Then, the speech synthesis circuit 1 that has received the second response message sending command reads out the second response message data from the speech synthesis memory 2, combines this data with the local telephone number data, and generates the second response message. [This is xxx
x (own phone number). I am currently away from my seat, so please press the dial button and enter your phone number. When you have finished entering the information, press the asterisk key. '' are synthesized and supplied in parallel to the output side of the transmitter 5 via the amplifier 3 and the switch 4. As a result, the second response message is sent back to the calling party via the telephone line.

In this state, it is waiting for data input from the calling party.
The CPU 130 detects the decoded data storage area of the RAM 140 (step 402), determines a free area, and sets the storage area for the input decoded data (step 403). In this state, when the caller operates a dial button (numeric keypad) to enter his or her own telephone number, a DTMF signal resulting from this operation is input to the add-on unit 9 via the wireless communication path. This DTMF signal is sent to the DTMF signal decoder 1o.
The data is decoded one digit at a time as calling party telephone number data and supplied to the input port 132 of the CPU system 13. Here, the DTMF signal decoder 10 sends a data ready signal D of "1#" indicating this every time one digit decoding operation is completed.
Since the data ready signal D is sent, the CPU 130 receives this data ready signal D after sending the second response message.
Whether R has become '1#' is monitored via the input port 132 (step 404). Therefore, when @reading of the first digit of the calling party's telephone number is completed and the data ready signal DR is output from the DTMF signal decoder 10, D
The first digit number data (decoded data) output from the TMF signal decoder 10 is read through the input port 132 (step 405), and then it is determined whether the number data read at this time corresponds to the asterisk key. If it does not correspond to the ask free key (step 406), the number data (decoded data) read at this time is stored in the previously set storage area of the RAM 140 (step 407). After this, the operation shifts to monitoring the data ready signal DR again in order to read the number data after the next digit, and when the second digit number data is decoded, this number data (decoded data) is stored in the RAM 140 in the same manner as described above.
to be memorized. In this way steps 404-407
The process is repeated and all digits of the calling party's telephone number data are stored in the RAM 140. Then, when this quick caller operates the asterisk key and the decoded data (decoded data) of this key is read from the DTMF signal decoder 10 (step 406), the CPU 1
30 gives a command to send a third response message to the voice synthesis circuit 1 in order to have the caller confirm the input caller telephone number (step 408), and also sends a command to the RAM.
The calling party's telephone number data previously stored in 140 is transferred to the speech synthesis circuit 1 (step 409).

Then, the speech synthesis circuit 1 reads the third response message data from the speech synthesis memory 2, combines this data with the caller's telephone number data, and writes [The telephone number you entered is XXXX (written in the RAM 140)]. phone number data). If correct, press the number key. If you make a mistake, please press the asterisk key and re-enter.

” is synthesized, and this audio signal is supplied to the output side of the transmitter 5 via the amplifier 3 and the switch 4. As a result, the third response message as described above is sent back to the calling party.

Therefore, if the caller's telephone number stored in the RAM 140 is correct, the caller operates the number key "#"; if it is incorrect, the caller operates the asterisk key, and the D-digital MF signal from these key operations is transmitted via the amplifier 9. and is input to the DTMF signal decoder 10.

At this time, the CPU 130 monitors whether the data ready signal DR has become 51# after sending the third response message (step 410), and the data ready signal OR
When detecting that the value has become 119, the input port 132
Decoded data is fetched from the DTMF signal decoder 10 via the DTMF signal decoder 10 (step 411), and it is determined whether the fetched decoded data corresponds to the number key and the asterisk key (steps 412 and 413).
. As a result of this determination, if it is determined that the data corresponds to the number key, the CPU 130 re-stores the caller telephone number data stored earlier in the RAM 140 as accurate data (step 414). Thereafter, in order to notify the called party that the calling party telephone number data is stored, the CPU 130 sends a lighting signal from the output port 137 to light the lamp 14b (step 214). This turns on the lamp 14b.

Further, the CPU 130 displays the reference address of the RAM 140 in which the telephone number is stored in the display area 15 via the interface circuit 16.

Subsequently, the CPU 130 gives a command to send the fourth response message to the speech synthesis circuit 1 (step 416). Then, the voice synthesis circuit 1 reads out the fourth response message data from the voice synthesis memory 2, synthesizes a voice signal, and sends this voice signal to the calling party via the amplifier 3 and the switch 4.

This will cause you to receive the fourth response message ``The phone number you entered has been remembered.'' Thank you very much. ' will be sent to the caller. Then, the CPU 130 detects the decoded data storage area of the RAM 140 again (step 417), determines whether there is an empty area, and determines whether a predetermined length of decoded data can be stored in the empty area (step 418). When the CPU 130 determines that storage is possible, the CPU 130 executes the away mode 2 processing routine (step 112).
When it is determined that storage is not possible, the absent mode 2 setting flag is set to 10# and the absent mode 2 processing routine (step 112) is terminated. At this time, the absence mode 1 setting flag may be set to 11#.

On the other hand, the calling party telephone number data stored in the RAM 140 is incorrect, and the calling party responds by pressing the asterisk key.
If a DTMF message is sent, the CPU 130 returns to the state after sending the second response message in order to re-receive the calling party's telephone number data.

That is, the data ready signal O in step 404
Returns to R monitoring operation.

In addition, in the above-mentioned away mode 1 processing routine and away mode 2 processing routine, when the caller performs the call termination operation, J,
When the communication path is released, the routine operation is terminated, assuming that the communication has ended. However, in FIGS. 5 and 6, the flowcharts are omitted because they would be complicated. Note that the calling party telephone number data stored in the RAM 11 is read out by the C reproduction process (step 104) in response to the detection of the operation of the reproduction key 122 (step 103) and displayed on the display 15 as described above.
will be displayed. That is, by the reproduction process in step 104, the display on the display 15 is switched from the reference address to the calling party's telephone number data corresponding to this reference address. In order to further ensure confidentiality, the display 15
In order to display the calling party's telephone number corresponding to the reference address, it may be possible to display the caller's telephone number only when a predetermined key number is input using the numeric keypad section 11 together with the playback key 122.

In addition, when the absence mode 2 setting flag is set to ``1#'' and there are multiple incoming calls, the RAM 11
A plurality of calling party telephone number data will be stored in , and a plurality of reference addresses will be displayed on the display 15 in correspondence with the calling party telephone number. Here, indicator 1
5 may be configured to be able to display the plurality of reference addresses at the same time, or the display 15 may be configured to display one reference address, and the display contents can be switched by operating a specific key, resulting in displaying a plurality of reference addresses. The configuration may be such that the reference address is displayed.

[Effects of the Invention and Ideas 1] As explained above, according to the present invention, a message from a calling party is stored in a memory as decoded data based on a DTMF signal, and a reference address of the memory is displayed on a display. Therefore, the phone number received when you are absent (away from your car) will not be seen by a third party, providing confidentiality.

Also, since it is displayed by reference address, how many times when you are absent,
You can easily find out whether your phone number has been registered.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an automatic telephone device showing an embodiment of the present invention, Fig. 2 is a block diagram showing a detailed configuration of the main parts of Fig. 1, and Fig. 3 is an operation of an embodiment of the invention. 4 is a flowchart for explaining the operation of the mode setting processing routine (step 102) in FIG. 3, and FIG. 5 is a flowchart for explaining the operation of the mode setting processing routine (step 110) in FIG. A flowchart for explaining the operation, FIG. 6 is the away mode 2 processing routine of FIG. 3 (
11 is a flowchart for explaining the operation of step 112). 1... Speech synthesis circuit, 2... Speech synthesis memory, 7.
...Telephone line network control circuit, 10...DTM F signal decoder, 11...Part of number key, 12...Part of control key, 13-CPU system, 14a, 14b-...
Lamp, 15... Number display, 17... Speaker,
130...CPU, 140...RAM. Figure 3 Figure 4

Claims (1)

[Scope of Claims] A DTMF signal decoder for receiving and decoding a DTMF signal transmitted from the other party's telephone device after a line is established with the other party's telephone device; and storing a predetermined number of data corresponding to the output of the DTMF signal decoder. write control means for controlling writing of the data into the memory; read control means for controlling reading of the data from the memory; and either writing the data into the memory or not. 1. A wireless telephone device comprising: a mode setting means for setting an operation mode of the wireless telephone; and a display means for displaying a write address of the data when the data is written in the memory.