JPH0669190B2 - Voice dial telephone system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in the following order.

A Field of Industrial Use B Outline of Invention C Conventional Technology D Problems to be Solved by the Invention E Means for Solving Problems (FIG. 1) F Action G Example G ₁ Structure of whole and each part Explanation (Figs. 1 to 5) G ₂ Main operation (Fig. 6) G ₃ Dial number registration mode (Fig. 7) G ₄ Auto dial mode (Fig. 8) H Effect of the invention A Industrial field of application The present invention relates to a voice dial telephone system in a system composed of a plurality of terminals and a central control unit for controlling these terminals, which automatically dials a desired party in response to a voice input from the terminals. .

B. Summary of the Invention In the present invention, a system is composed of a plurality of terminals and a central control device that controls these terminals, and a telephone number and voice patterns of a plurality of words that are identification information of the telephone numbers are centrally controlled in advance. Stored in a common bank and a bank dedicated to the terminal in a predetermined memory in the device, and input from any of the plurality of terminals according to the identification result of which terminal is calling during dialing The matched voice pattern is compared with the voice pattern stored in the memory, and if they match, the telephone number corresponding to the matched voice pattern is read from the memory and automatically dialed.

C. Conventional technology The basic operation of the telephone at the time of making a call is off-hook of the handset and subsequent dial operation. By the way, this dial operation requires dialing a 5- to 7-digit number even in a local call, and if it becomes a long-distance call, 9
Need to dial digits or 10 digits. Conventionally,
In order to reduce this dial operation, push-button type dial devices, dial devices having a speed dial function, and automatic dial devices in which specific keys correspond to predetermined destination telephone numbers have been developed.

However, a simple push button type dial device is easy to operate, and the number of buttons to be operated is still 5 to 10, which is quite complicated. In addition, if there is a speed dial function, for example, it is possible to make calls both in the city and in the suburbs by operating three buttons. However, even if this is used, three button operations must be performed and each abbreviated number It is troublesome because you have to remember which partner the person corresponds to. Furthermore, in the automatic dialing device in which a specific key is associated with a predetermined destination telephone number, one button operation is sufficient, and when the destination is displayed on each key, which key is assigned to which destination You don't have to remember what to do. However, when this device is adopted, it is necessary to provide keys corresponding to the number of destinations, and there is a drawback that the device becomes large.

D. Problems to be Solved by the Invention Therefore, the present invention intends to provide an inexpensive voice dial telephone system which can be downsized without requiring any key operation for selecting the other party.

E. Means for Solving the Problems In the present invention, the other party is selected by voice input, and the other party is automatically dialed.

That is, according to the present invention, there is provided a voice dial telephone system including a plurality of terminals and a central control device for integrally controlling the plurality of terminals, wherein the central control device is common to the plurality of terminals. Divided into a plurality of banks consisting of a common bank that can be used and a plurality of terminal-only banks that can be used exclusively by the terminal,
First storage means capable of storing a voice pattern of a plurality of words, which is identification information of a telephone number, for each of the common bank and each of the plurality of terminal-dedicated banks; and a voice stored in the first storage means. A second storage unit that stores a telephone number corresponding to the pattern, wherein the plurality of terminals specify a common bank or a bank dedicated to the terminal for each terminal. The central control unit further comprises an identification unit for identifying from which one of the plurality of terminals the call is originated, and a common bank with a designated operator of the called terminal. Is specified, a voice pattern that matches the voice pattern input by the called terminal is detected from the voice patterns stored in the common bank of the first storage means, and the voice pattern is detected. Called terminal When the terminal dedicated bank is designated by the designated operator of, the voice pattern stored in the terminal dedicated bank corresponding to the terminal identified by the identifying means is input by the called terminal. A voice recognition means for detecting a voice pattern matching the voice pattern, and an automatic dial means for automatically dialing a telephone number corresponding to the voice pattern detected by the voice recognition means from the second storage means. To get it.

F. Action In the present invention, the system is configured with a plurality of terminals and a central control device that controls these in a centralized manner, and the voice patterns and the telephone numbers of a plurality of words, which are identification information of the respective telephone numbers, are stored in advance in the central control device. In the common bank and the terminal-dedicated bank of the first and second storage means, when the common bank is designated by the designated operator of the called terminal at the time of dialing, the first bank is stored. Of the voice patterns stored in the common bank of the storage means, the voice pattern matching the voice pattern input by the called terminal is detected, and the telephone number corresponding to the detected voice pattern is detected. In addition to reading from the second storage means and automatically dialing, when the terminal-only bank is designated by the designated operator of the called terminal, the identification means is used by the identifying means. A voice pattern that matches the voice pattern input by the called terminal is detected from the voice patterns stored in the terminal-dedicated bank corresponding to the separated terminal, and the detected voice pattern is detected. The corresponding telephone number is read from the second storage means and automatically dialed.

Hereinafter, the present invention will be described in detail according to embodiments shown in the accompanying drawings.

G. Embodiment FIG. 1 shows an embodiment of the voice dial telephone system according to the present invention.

The system of this embodiment is composed of a plurality of terminals T ₁ , T ₂ , T ₃ ... And a central control device TC for centrally controlling these terminals.

The internal configurations of the terminals T ₁ , T ₂ , T ₃ ... Are the same, and the internal configuration will be described below by taking the terminal T ₁ as an example.

The terminal device T ₁ is composed of a telephone 1 and a transmission interface device 2, and the telephone 1 is connected to a station line 3 via the transmission interface device 2.

The interface circuit 10 in the transmission interface device 2 performs line switching control for the telephone 1 and the transmission interface device 2, on-hook / off-hook detection of the handset 1a of the telephone 1, and the like. FIG. 2 shows an internal configuration example thereof. This interface circuit 10 includes photocouplers 11 and 12 for on-hook / off-hook detection, a transformer 13 for signal extraction, buffers 14 and 15, and relay contacts S ₁ and
It has a configuration including S ₂ , S ₃ , and S ₄ . Incidentally, S ₄ is a relay contact for generating a dial pulse signal. In FIG. 2, when the handset 1a of the telephone 1 is not picked up (when on-hook), the telephone 1 and an exchange (not shown)
No DC loop is formed in the line 3 between and, so that neither of the photocouplers 11 and 12 is active, so that the signal originating at terminal G is then at ground level. However, when the handset is picked up (when off-hook), a DC loop is formed in the line 3, so that one of the photocouplers 11 and 12 operates depending on the polarity state, and the signal generated at the terminal G rises to + 5V. . This voltage change at the terminal G is output to the input / output interface 36 as an off-hook detection signal, and the cable connector CN ₁ ,
It is input to the CPU 40 of the centralized control device TC via the cable C or the like. The relay contacts S ₁ , S ₂ , S ₃ and S ₄ are switched and controlled by a telephone line control signal sent from the CPU 40 of the central control unit TC via the input / output interface 36 and the like. By the way, each of the terminals T ₁ , T _2, ... Has three different curved connection states as shown in FIGS. 3 (a), (b) and (c), respectively. The states of the relays S ₁ , S ₂ , S ₃ and S ₄ according to the connection state of one station line are shown.

The connection state 1 (see FIG. 3 (a)) occurs during, for example, manual dialing, during a call after establishing a line, or upon receiving a call,
The telephone 1 and the office line 3 are directly connected,
The transmission interface device 2 is separated from the office line 3. The connection state 2 (see FIG. 3B) is, for example, the telephone 1
The telephone 1 is circuit-coupled to the transmission interface device 2 in the off-hook state with respect to the central line 3 when the voice is input from the transmission interface device 2 via the transmission interface device 2. The connection state 3 (see FIG. 3 (c)) occurs when a call is made using the transmission interface device 2, the telephone 1 is circuit-coupled to the transmission interface device 2, and the transmission interface device 2 is connected to the central office line. Is in a state. In the case of the line connection state shown in FIGS. 3 (b) and 3 (c), when the telephone set 1 goes on-hook (the state where the handset is placed), the state immediately returns to the state shown in FIG. 3 (a). It is supposed to do.

As shown in FIG. 4, the operation panel 20 shown in FIG. 1 has a numeric keypad 21, a two-digit 7-segment display 22, a power switch 23, an RCG button 24, an LRN button 25, a CAN button 26, a SET button 27, Common bank designation switch 28 and indicator lamp 29
Etc. are provided. On the display unit 22, a registration number (registered voice data and a number for identifying a dial number and consecutive serial numbers from "1" to "24" are attached) and a telephone number (the dial number is sequentially displayed one digit at a time). ) Etc. are displayed. Each of the RCG button 24, the LRN button 25, the CAN button 26 and the SET button 27 is provided with a display lamp h such as an LED so that the display lamp corresponding to the inserted button lights up. RCG button 24
Is input when the device is set to the auto dial mode as described later. The LRN button 25 is used to place the device in dial number registration mode and to manually increment the registration number. The CAN button 26 is used for canceling input data during dial number registration, and for partially changing registration contents without changing the number of set registration words. The SET button 27 is pressed when the number of registered words is fixedly set. The common bank designation switch 28 will be described in detail later, but the voice memory 41 and the telephone number memory in the central control unit TC.
It is turned on when each common bank of 45 and voice pattern memory 44 is designated. The indicator lamp 29 lights up when the central control device TC is occupied by another terminal device. The operation panel 20 is controlled by the panel control unit 30. The panel control unit 50 is connected to the input / output interface 36.

The voice data input via the transmitter of the handset 1a of the telephone 1 is supplied to the amplifier filter 31 via the interface circuit 10. The audio data input to the amplifier filter 31 is sample-held by the sample-hold circuit 32, and is AD-converted by the A / D converter 33 to be converted into a PCM (pulse-code Modulation) signal. The output of the A / D converter 33 is an input / output interface.
Entered in 36.

The D / A converter 34 converts the PCM signal into an analog signal by D / A converting the audio data input via the input / output interface 36. This converted data is applied to the telephone set 1 through the amplifier filter 35 and the interface circuit 10 and reproduced as voice through the handset of the handset 1a.

Each of the terminals T ₁ , T ₂ , T ₃ ...
₁ , CN ₂ ... CNn are connected to the central control device TC by a cable, and the CPU 40 of the central control device TC controls and controls the central control device TC.

The voice memory 41 in the central control device TC is a non-volatile RAM, and stores voice data (PCM signal) received via the input / output interface 42. As shown in FIG. 5 (a), the voice memory 41 has a common bank that can be commonly used by each terminal and a dedicated bank for each terminal that can be exclusively used by corresponding terminals. Is up to 24
Voice data up to words can be stored for each registration number. The voice memory 35 is used for recording and reproducing voice data, and the voice up to one second after the voice is uttered is defined as one registered word length in order to reduce the storage capacity.

Next, the voice recognition circuit 43 recognizes the voice received through the input / output interface 42, stores the recognized voice pattern in the voice pattern memory 44, and collates the voice data according to the instruction of the CPU 40 in the auto dial mode. Do. That is, the voice recognition circuit 43 recognizes voice data input through the transmitter in the auto dial mode, and recognizes the recognized voice pattern and the voice pattern memory in advance.
The voice pattern registered in 44 is collated, and the collation result is reported to the CPU 40 via the bus BS. Voice pattern memory 4
4 is a non-volatile RAM, the maximum of which is shown in Fig. 5 (b).
It consists of a common bank that stores voice patterns of up to 24 words for each registration number and a dedicated bank for terminals. Since this voice pattern memory 44 may have a smaller capacity than the voice memory 41, one voice can be output from 0.2 to 1.5 seconds after the voice is emitted.
The registered word length was used. That is, the voice for less than 0.2 seconds becomes noise and is not registered.

The telephone number memory 45 is a non-volatile RAM, and as shown in FIG. 5 (c), it stores the set number of registered words in each bank of the common bank and the dedicated bank for each terminal, and also inputs the dialed number. Store numbers by registration number. In this telephone number memory 45, a maximum of 1 registered word length is set for 20 digits of the dial number.

This telephone number memory 45 and the voice memory described above
41. In this case, the voice pattern memory 44 is divided into the same memory areas by the registration numbers "1" to "24" as shown in FIG. 5, and the address of each memory area corresponds to the registration number. ing.

In FIG. 1, reference numeral 46 is a program ROM in which a predetermined program for operating the CPU 40 is prestored, and 47 is a CPU.
RAM used as 40 work areas.

G ₂ , Main Operation FIG. 6 shows an example of the main operation of the CPU 40 in such a configuration example.

The CPU 40 sets various variables of the program to initial values when the handset 1a of the terminal which is communicating with the central control device TC is placed (on-hook), and the display unit 22 of each terminal.
After performing a predetermined initial setting operation such as setting the registration number displayed in (1) to "1" (step 100), the input / output of all terminals is enabled. The interface circuit 10 of each terminal detects whether or not the handset 1a of the telephone 1 is detached, and when the handset is detached, sends an off-hook detection signal to the central control unit TC via the input / output interface 36. To do. The CPU 40 of the central control device TC monitors the above-mentioned off-hook detection signal input from each terminal (step 101), and when the off-hook detection signal of any one of the terminals is input, the input of any other terminal is detected. After the output interface 36 is set in the disable state, data communication is performed with the terminal device which has sent the off-hook detection signal (step 102). Now, assuming that the handset 1a of the terminal device T ₁ is picked up, the CPU 40 detects this by an off-hook detection signal and sends a busy signal to the terminal devices T ₂ , T ₃ ... Other than the terminal device T ₁ . A terminal device that has received the busy signal
T ₂ , T ₃ ... Turn on the display lamp 29 on the display panel 20 to notify the operator that the centralized control device TC is occupied by another terminal device. After that, the CPU 40 uses the terminals T ₂ and T ₂ other than the terminal T ₁ .
After making the input / output interface 36 of T ₃ ... Disable, the data communication with the terminal T ₁ is started. In this case, in preparation for a collision of off-hook detection signals when the handsets 1a are simultaneously picked up by a plurality of terminals, a predetermined priority is given to each terminal.

When the data communication with the terminal device which has sent the off-hook detection signal is started, the CPU 40 first searches the terminal device for whether or not the common bank designating switch 28 on the operation panel 20 is turned on (step 103). When the common bank designating switch 28 is turned on, the CPU 40 selects the common bank among the plurality of banks of the voice memory 41, the voice pattern memory 44 and the telephone number memory 45 (step 104). When the common bank designation switch 28 is not turned on, the CPU 40 selects the terminal-dedicated bank corresponding to the terminal device which is performing data communication among the plurality of banks of the memories 41, 44 and 45. For example, if the bank terminal T ₁ is chosen that performs terminal unit T ₁ and data communication.

Then, after which, which button on the operation panel 20 has been pressed is monitored, and when the LRN button 25 has been pressed (step 106), control is performed in the dial number registration mode (step 107) and the RCG button 24 If is turned on (step 108), control is performed in the auto dial mode (step 109). Among the above modes, the dial number registration mode is a mode for registering any voice data and dial number (both extension and outside line) for each registration number in association with each other. The auto dial mode is a telephone set. In this mode, voice data is input through the transmitter of handset 1 to automatically dial the other party.

G _3, shows a control flow chart example of CPU40 when the dial number registration mode in FIG. 7 dialed number registration mode. Terminal device T ₁ according to FIG. 7 below
An example of operation and operation when registering the voice data and the dial number as shown in the table below in the bank for each terminal T ₁ of the voice memory 41, the voice pattern memory 44, and the telephone number memory 45 will be described.

The operator of the terminal T ₁ picks up the handset 1a of the telephone 1 and, after confirming that the display lamp 29 does not light up, turns on the LRN button 25 (see FIG. 6). Central control unit TC CP
U40 is output interface 42 to detect this, the state shown in via the cable C or the like to enter the telephone line control signal to the interface circuit 10 of the terminal unit T _1, the line terminal unit T ₁ FIG. 3 (a) To the state shown in FIG. 3 (b), and the panel control circuit 30 of the terminal T ₁
By inputting a predetermined signal to the display unit 22 on the operation panel 20, the registration number "1" blinks (step 20).
1) Then, it is monitored whether or not a key input is made (step 202).

Next, the operator inputs the dial number "2316" corresponding to "TOKYOKA" to be registered in the registration number "1" using the ten keys 21 on the operation panel 20. First, when the dial number “2” is input, it is determined in step 202 that there is a key input, and the numeric key has been input, so steps 204, 205,
The process proceeds to step 208 via 206 and 207, and the input numerical data "2" is stored in the buffer driver 30-a. Next, if you enter the dial number "3", steps 209 and 21
After 0, 211, and 207, the process again reaches step 208, and the input numerical data "3" is stored in the buffer driver 30-a following the numerical data "2". Subsequent dial numbers "1" and "6" are also sequentially stored in the buffer memory 30-a. If the number keys are pressed incorrectly when entering this dial number, if the CAN button 26 is turned on, the determination at step 211 will be "YES", so step 212
Clear the dialed number input to the buffer driver 30-a with and re-enter the correct dialed number from the first digit.

When the operator of the terminal device T ₁ finishes inputting this dial number, he / she pushes the SET button 27 on the operation panel 20. The SET
Upon detecting the insertion of the button 27 (step 210), CPU 40 has the numeric data "2316" which is the input sent to the cable via the input interface 36 of the terminal unit T _1, the telephone number of the central control device TC It is stored in the storage area of the memory 45 corresponding to the registration number “1” of the terminal T ₁ bank (the fifth
(See FIG. 6C) The registered dial number is returned to the terminal T ₁ . This return dial number is lit up and displayed in order from the first digit on the display 22 of the terminal T ₁ (step 21
3). By looking at this display, the operator of the terminal T ₁ can confirm whether or not the correct dial number has been registered.

When this display ends, the operator of the terminal device T ₁ calls the telephone 1
Input the voice "Tokkyoka" corresponding to the registration number "1" via the handset transmitter of the handset. This voice data is taken into the amplifier filter 31 (step 214). The audio data input to the amplifier filter 31 is sampled and held by the sample and hold circuit 32, and is further added to the AD converter.
Input / output interface 36 after converted to PCM signal at 33
Is output to the central control unit TC via. And this PC
The M converted data is stored in the voice memory 41 in the central control unit TC.
It is stored in the storage area corresponding to the registration number “1” of the bank for the terminal T ₁ in the inside (see FIG. 4A), and is also input to the voice recognition circuit 43. The voice recognition circuit 43 receives the input
Voice recognition is performed by further applying a predetermined voice analysis process to the PCM conversion data, and the recognized voice pattern is stored in the storage area corresponding to the registration number “1” of the bank for terminal T ₁ in the voice pattern memory 44 ( 5 (b)). When the acquisition of such voice data is completed (step 215), the CPU 40 increments the registration number by +1 unless the registration number exceeds the maximum number of registered words (24 in this case) (step 21).
7), the registration number displayed on the display unit 22 of the terminal T ₁ is incremented by +1 in the blinking state (step 201).

After confirming this blinking, the operator of the terminal T ₁ registers the dial number and voice data corresponding to the registration number “2”. The operation and the operation in each part in this case are different only in that the dial number is an outside line, and the others are the same as in the case of the registration number "1" described above. That is, in the apparatus of this embodiment, when a line is connected to an outside line, a predetermined numeral key (for example, "0") is turned on, and after waiting a predetermined waiting time (duration of exchange), the outside line is connected. Assuming a telephone system, in this case the operator is required to register the dial number "06 32 1XXXXX"
The numbers are input in the order of "0", "p", "0", "6", "3", "2", "1" .... The “p” key of the numeric keypad 21 means a pause, and is used to cause the CPU 40 to wait for the above-mentioned predetermined waiting time in the subsequent auto-dialing mode and then perform dialing with the registered dial number that follows. It

In this way, when the input of the dial number corresponding to the registration number "2" is completed, the operator of the terminal device T ₁ inputs the voice "Osaka" corresponding to the registration number "2" and registers in the same manner as described above.

Similarly, the registration of the voice data and dial number corresponding to the registration numbers “3”, “4”, ... “23” is completed, and the registration is continued until the maximum registration number “24” on the display unit 22 blinks. It is assumed that it has progressed (step 201). After that, the dial numbers "3", "5", "5", and "7" are input, and the SET button 27 is pressed (step 210), whereby the dial number of the registration number "24" is registered (step 213).
Further, the voice data “Uketsuki” is registered. here,
The CPU 40 increments the registration number to "25" (step 216), and also searches whether the registration number "25" is less than or equal to the maximum number of registered words "24" (step 217).
In this case, since the determination result is "NO", the CPU 40 automatically sets the number of registered words to the number obtained by subtracting "1" from the registration number at this stage ("25" in this case), that is, "24" (step 218). The setting of the number of registered words is to set the number of words to be searched in the automatic dialing mode, which will be described later. In this case, all the registered contents from the registration numbers "1" to "24" are searched. When the number of registered words is set in this way, the program of the CPU 40 returns from the dial number registration routine to the main routine.

The above is an example of data registration up to the maximum number of registered words (24). For example, when setting the number of registered words to 10 words from registration numbers "1" to "10", the registration number is the same as above. After the registration of the dial numbers "1" to "10" and the voice data is completed, confirm that the registration number "11" is blinking on the display unit 22 (step 201),
After that, the SET button 27 may be turned on (step 205).
When the SET button 27 is turned on, the CPU 40 sets the registration number at the present stage (in this case, after subtracting "1" from "11", that is, after setting the number of registered words to "10" (Sunstep 219),
Return the program to the main routine.

Further, in the case of resetting the registration content, when the registration number is skipped to a desired number, the operator may confirm the blinking of the registration number and then insert the LRN button 25 as many times as desired to be skipped ( Step 204).

In addition, when resetting the registration contents, after re-registration of the dial number and voice data is completed, in step 205, S
If the ET button 27 is pressed, the number of registered words is revised to the new number of words corresponding to the reregistered registration content. For example, the number of registered words is set to 10 words from registration numbers "1" to "10" in the old registration, and the registration number "1" in the new registration.
Step 5 after the re-registration of 5 words from to 5
If the SET button 27 is pressed at 5, the number of registered words is set to 5 words from registration numbers "1" to "5", and the registered contents from previously registered registration numbers "6" to "10" Are ignored by the search. In this case, step 205
And the SET button 27 is not turned on, and at step 206 CAN
When the button 26 is pressed, the number of registered words is not revised.
That is, in this case, 10 words composed of the new registration contents of registration numbers “1” to “5” and the old registration contents of registration numbers “6” to “10” are to be searched. As described above, when the CAN button 26 is turned on in this step 206, the program can be returned to the main routine without changing the number of registered words. This CAN button 26 is used in combination with the registration number skip function of the LRN button 25 for registration. It is used when part of the content is revised.

When registering data in the common bank of the memories 41, 44 and 45 of the centralized control device TC, take the handset of the telephone 1 and confirm that the indicator lamp 29 is off, and then turn on the common bank designating switch 28. After the LRN button 25 is turned on, the same operation as described above may be executed (see FIG. 6).

G ₄ Autodial Mode Next, FIG. 8 is shows a control flow chart example of CPU40 when auto dialing mode, the terminal T ₁ of the terminal device T ₁ is the memory 41, 44 and 45 in accordance with FIG. 8 below An operation and an operation example at the time of auto-dialing to a desired communication partner registered in the use bank will be described.

The operator of the terminal T ₁ picks up the telephone handset and
After confirming that the indicator lamp 29 does not light up, press the RCG button 2
Add 4 (see Fig. 6). When the CPU 40 of the central control device TC detects these, the interface circuit 10 of the terminal device T ₁
A telephone line control signal is input to switch the line from the state shown in FIG. 3 (a) to the state shown in FIG. 3 (b) and is stored in a predetermined area of the terminal T ₁ bank of the telephone number memory 45. The registered number of registered words is read and input to the voice recognition circuit 43 (step 300). The number of words to be searched in the voice recognition circuit 43 is determined by the input number of registered words.

Next, the operator of the terminal device 1 inputs a voice corresponding to a desired destination via the transmitter. This audio data is used as an amplifier filter 31, a sample hold circuit 32 and an A / D.
Centralized control device T after being converted to PCM signal via converter 33
It is input to the C voice recognition circuit 43. The voice recognition circuit 43 recognizes the received voice data, and registers this recognition pattern with a registration number "1" designated by the number of registered words of the voice patterns prestored in the terminal T ₁ bank of the voice pattern memory 44.
To the registration number "n" (n = number of registered words) are sequentially collated, and the collation result is reported to the CPU 40 (step 301). This matching result is output in the form of a registration number corresponding to the registered voice pattern that matched or a mismatch. Upon receipt of the verification result, the CPU 40 confirms the end of recognition (step 302). When the registration number is reported as the verification result, the CPU 40 determines that the terminal T _{1 of the} voice memory 41
The voice data (PCM signal) corresponding to the registration number is read out from the use bank and sent to the terminal T ₁ . This voice data is sent to the D / V via the input / output interface 36 of the terminal T _1.
It is input to the A converter 34. D-A converter 34 is input
The PCM signal is converted into the original analog signal, and this converted analog signal is supplied to the handset of the telephone 1 through the amplifier filter 35 (step 303).

The operator listens to the reproduced voice through the handset of the handset, and if the voice is the same as the voice input by the operator, waits for the automatic dialing to end. However, when a word different from the voice input by the user is played back, the handset is set on, the voice attached to the RCG button 24 is turned off, and the voice is input again or dialing is performed manually. As described above, since the voice recognition result is reproduced by voice, the operator can determine whether the voice recognition result is correct or not before dialing, thereby preventing false dialing in advance. it can.

If a mismatch is input as the verification result, the CP
The U 40 notifies the operator of this by displaying a defective code on the display unit 22 of the terminal T ₁ , for example.

When the reproduction of the registered voice is completed, the CPU 40 reads the dial number corresponding to the registration number obtained as the result of the collation from the terminal T ₁ bank of the telephone number memory 45, and outputs the read dial number to the terminal T ₁ . The telephone line control signal is transmitted and the interface circuit 10 of the terminal device T ₁ is sent.
To enter. In the interface circuit 10 of the terminal device T ₁ , after switching the line from the state shown in FIG. 3 (b) to the state shown in FIG. 3 (c), the dial pulse signal corresponding to the input dial number is sent to the office line. To send (step 30
Four). After that, when the CPU 40 detects that the line has been established, it again sends a telephone line control signal to the interface circuit 10 to switch the line from the state shown in FIG. 3 (c) to the state shown in FIG. 3 (a). By disconnecting the transmission interface device 2 from the office line by doing so, the terminal device T ₁
And enable all terminal unit T _2, T ₃ ... input other than to prepare for the next processing. When the operator of the terminal device T ₁ establishes a line with the other party, he / she can make a call as usual thereafter and put the handset on hook when the call ends.

In the case of the circuit connection from the extension line to the outside line, the CPU 40 detects the P signal in the registered dial number, provides a waiting time for the outside line connection time of the exchange, and sends the dial pulse.

When auto dialing a communication partner registered in the common bank of each memory 41, 44 and 45, first take the handset of the telephone 1 and confirm that the indicator lamp 29 is off, and then switch to the common bank designating switch 28. And then RC
After the G button is turned on, the same operation as described above may be executed (see FIG. 6).

As described above, in the present embodiment, in the telephone system including the plurality of terminals and the centralized control device that controls the plurality of terminals, the dial number registration mode and the auto dial mode are provided, and the automatic dialing is performed by the voice input from each terminal. Was realized. For this reason, the operator of each terminal can easily perform automatic dialing simply by saying the same word as the registered voice corresponding to the desired communication partner when dialing.

In the above embodiment, for example, the LRN button 25 is set to the dial number registration mode or the registration number is manually incremented so that one button has a plurality of functions depending on the operation stage. Separate buttons may be provided to specify each function, or one button may be provided with more kinds of functions to reduce the number of buttons.

In addition, in the above-described embodiment, 2 is displayed on the operation panel 20 of each terminal.
Although the digit display unit is provided and the dial numbers are displayed one digit at a time, the display unit is not limited to this, and a display unit capable of displaying all the dial digits at once may be used. The registration numbers to be displayed may also be displayed, for example, as “0”, “1”, “2” ...

In addition, at each time when voice recognition is completed at the time of registration, for example, the display state of the display unit of each terminal device is changed from lighting to blinking or the display color is changed, or the display state is changed,
It is also possible to notify the registrant that the voice recognition is completed by outputting a tone signal (pip) from the handset of the telephone. Further, in the above-described embodiment, the SET button 27 is turned on every time the registration number is updated at the time of registration (step 210 in FIG. 7), but this SET button operation is abolished and dialing is automatically performed. It is also possible to register the number and voice data, and further, register a plurality of dial numbers first, and register the plurality of voice data corresponding to the plurality of dial numbers after the registration is completed. It is also possible to adopt the input form of registration data such as.

Further, in each terminal device, the telephone 1 and the transmission interface device 2 may be formed in separate casings, but they are integrally formed so that the ten-key 21 on the operation panel 20 and the dial of the telephone 1 are shared. You may Further, a microphone and a speaker may be built in the transmission interface device 2 so that voice data can be registered and confirmed without taking a handset. Further, in the above embodiment, the dial pulse (DP) signal is transmitted from the interface circuit 10 of each terminal to the line, but the push button (PB) signal composed of a combination of two voice signals is transmitted to the line. It goes without saying that the data may be sent out by transmitting.

By the way, in the above embodiment, the voice memory 41, the voice pattern memory 44, and the telephone number memory 45 are divided into the same storage area in each bank by the registration numbers.
If the data length of each of the memories 41, 44, and 45 is made variable and the data is stored in order from the first address without any empty area, the memory capacity can be reduced.

The number of registered words in each bank of each of the memories 41, 44, and 45 is not limited to 24, and any maximum number of registered words may be adopted. In particular, the common bank in each of the memories 41, 44, and 45 is a terminal-only bank. The storage capacity may be increased so that a larger number of words can be registered as compared with.

In addition, in preparation for an increase in registered data, each of these memories 41,44
It is also possible to configure 45 and 45 to be expandable in advance, and further, each of these memories is configured with an EP-ROM, and the registration data is stored by the EP-ROM writing device instead of writing by the CPU as in the above embodiment. It may be written.

Further, in the above-described embodiment, among all the registration data in the voice pattern memory 44, the registration number “1” to the registration number “n” are selected.
Voice recognition circuit for all registered data up to (n: number of registered words)
Although the search target of 43 is selected, the selection mode of the search target is arbitrary, for example, registration numbers “1” and “5”.
It is also possible to easily realize that the registration content corresponding to the skipped registration number such as “7” is set as the search target.

In addition, data that is registered in the common bank of each memory 41, 44, and 45 is essential registration data that makes re-registration impossible, and dial numbers, voice patterns, and voices corresponding to these essential registration data are different in advance. The memory configuration may be such that the registration data dedicated to each terminal is stored in the ROM, and the RAM provided separately from the ROM.

By the way, in the embodiment system shown in FIG. ₁ , dial pulse sending means (relay contact S ₄ ) is provided in the interface circuit 10 of each terminal T ₁ , T _2, ... Although the dial pulse is transmitted to the line 3 by the operation of each terminal itself, the present invention is not limited to this, and the central control device TC side is connected to one or a plurality of station lines, The terminals T ₁ , T _2, ... May be configured to be connected to the curve via the centralized control device TC. FIG. 9 shows a configuration example in which the centralized control device TC is connected to one line 3 '.

In this system, the line switching circuit 50 is installed in the central control unit TC.
And it provided the line control unit 51 newly and to bind the該回line switching circuit 50 and a plurality of terminal unit T _1, T ₂ ... each interface circuit 10 '. The other components are the same as those of the embodiment system shown in FIG.

In the configuration shown in FIG. 9, it is assumed that, for example, the operator of the terminal device T ₁ inputs a predetermined voice after performing the same operation as described above. This voice is input / output interface 36,
The telephone number corresponding to the input voice is read from the telephone number memory 45 as a result of the voice recognition and collation, which is input to the central control device TC via a cable connector or the like. This telephone number is input to the line control unit 51, and under the control of the line control unit 51, the relay S ₅ in the line switching circuit 50 sends a dial pulse corresponding to the telephone number to the office line 3 '. When this transmission is completed, the line control unit 51 switches the contact of the line switching circuit 50 to the contact corresponding to the terminal device T ₁ . Note that in the appropriate time prior the contact switch, interface circuit 10 of the terminal unit T ₁ 'is switched to the A side that contacts the B side by the signal sent from the central control unit TC, this order line When the contact of the switching circuit 50 is switched to the contact, the telephone 1 of the terminal T ₁ can be connected to the office line. The system shown in FIG. 9 has a configuration in which one line is connected to the central control device TC, but if a plurality of line switching circuits 50 are used for the line switching circuit 50, a plurality of lines can be connected via the central control device TC. It is also possible to easily realize that the line is connected to a plurality of terminals.

H. Effect of the Invention As described above, according to the present invention, a common bank that can be commonly used by a plurality of terminals and a terminal-only bank that can be used only by the terminal are provided, and the terminal that has called can be identified. Since the identification means is provided to detect the voice pattern that matches the input voice pattern from the voice patterns stored in the terminal-dedicated bank corresponding to the terminal device called the common bank, the input is performed. It is possible to reduce the number of voice patterns for comparison with
It is possible to speed up the comparison and matching process between the input voice and the voice pattern stored in advance, and further, it is possible to reduce the storage capacity of the voice pattern without storing the voice pattern in duplicate. Produce the effect of.

[Brief description of drawings]

1 is a block diagram showing an embodiment of a voice dial telephone system according to the present invention, FIG. 2 is a circuit diagram showing an internal configuration example of an interface circuit 10 in the embodiment system shown in FIG. (A), (b) and (c) are diagrams showing a connection mode between a terminal unit and a central line of the embodiment system, respectively, and FIG. 4 is an enlarged view of an operation panel 20 of the terminal unit of the embodiment system, FIGS. 5 (a), (b) and (c) are diagrams showing an example of area division of the voice memory, voice pattern memory and telephone number / registered word number memory, respectively, and FIG. 6 explains the main operation example of the same embodiment system. FIG. 7 is a flow chart for explaining an operation example of the dial number registration mode, FIG. 8 is a flow chart for explaining an operation example of the auto dial mode, and FIG. 9 is a block diagram showing another embodiment system. Tsu is a click view. 1 ... Telephone, 2 ... Transmission interface device, 3 ...
Station line, 10 ... interface circuit, 20 ... operation panel,
21 …… Numeric keypad, 22 …… Display, 23 …… Power switch,
24 …… RCG button, 25 …… LRN button, 26 …… CAN button, 27 …… SET button, 28 …… Common bank designation switch, 29 …… Indicator lamp, 30 …… Panel control circuit, 31,35 …… Amplifier filter, 32 ... Sample and hold circuit, 33 ... A / D converter, 34 ... D / A converter, 36
...... Input / output interface, 40 …… CPU, 41 …… Voice memory, 43 …… Voice recognition circuit, 44 …… Voice pattern memory, 45 …… Telephone number memory, T ₁ , T ₂ , T ₃ …… Terminal device , TC ...
... Centralized control device.

Continuation of the front page (56) Reference JP-A-56-64586 (JP, A) JP-A-57-81796 (JP, A) JP-A-59-39154 (JP, A) JP-A-59-225656 (JP , A)

Claims (1)

[Claims] 1. A voice dial telephone system comprising a plurality of terminals and a central control unit for centrally controlling the plurality of terminals, wherein the central control unit comprises: (A) the plurality of terminals. Is divided into a plurality of banks consisting of a common bank that can be commonly used by the terminals and a plurality of terminals-dedicated banks that can be exclusively used by only the terminal, and a telephone number for each bank of the common bank and the terminals-dedicated bank. First storage means capable of storing voice patterns of a plurality of words as identification information; and (B) second storage means storing a telephone number corresponding to the voice pattern stored in the first storage means. The plurality of terminals includes a designated operator for designating, for each terminal, one of a common bank and a bank dedicated to the terminal, and the central controller further includes (C) Previous The identification means for identifying from which of the plurality of terminals the call is originated, and (D) when a common bank is designated by the designated operator of the called terminal, A voice pattern matching the voice pattern input by the called terminal is detected from the voice patterns stored in the common bank of the first storage means, and the designated operation of the called terminal is performed. When the terminal-only bank is designated by the child, the voice pattern input by the called terminal from the voice patterns stored in the terminal-only bank corresponding to the terminal identified by the identifying means. Voice recognition means for detecting a voice pattern that matches with (E) automatic dial means for reading out a telephone number corresponding to the voice pattern detected by the voice recognition means from the second storage means and automatically dialing the telephone number; Voice dialing telephone system comprising.