JP3196745B2 - Communication terminal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a master unit and at least one slave unit and has a polarity inversion detecting circuit.
The busy tone sent from the exchange to the master unit.
Relates to a communication terminal apparatus provided with a busy tone detection means for output, in particular, at the time of a call from the base unit or handset, during the detection of the busy tone by busy tone detecting means, the indication information of the die Yarudeta delivery command or the like from the slave unit If received, the detection of the busy tone is stopped, and the processing based on the instruction information from the slave is prioritized, whereby the command from the slave can be reliably processed even during the busy tone detection. The present invention relates to a communication terminal device.

[0002]

2. Description of the Related Art Conventionally, in a communication terminal device including a master unit and at least one slave unit, a slave unit is installed at a desired place away from the master unit, and communication from the slave unit to outside is performed. This is very convenient. Also, by detecting a busy tone after either the dial key of the master unit or the slave unit is pressed, it is possible to determine whether the called party is communicating or not. The need for an inversion detection circuit is eliminated, which is effective in reducing the number of components and the manufacturing cost.

[0003]

However, in such a communication terminal device, since the busy tone detection process starts when the first dial key of the master unit or the slave unit is pressed, the master unit is switched to a private branch exchange (hereinafter, referred to as "the private branch exchange"). PBX (private br
anch exchange) ". ), Etc., even if the slave unit tries to start communication by calling 0, the master unit is detecting a busy tone and cannot receive the next dial data transmission command from the slave unit. There is a problem that you can not dial from the machine.

Accordingly, the present invention has been made to solve the above-mentioned problems, and a master unit is switched when calling.
Da from the child machine during the busy tone detection sent from the machine
When receiving the instruction information such as the ear data transmission command , the busy tone detection process is stopped, and the process for the instruction information from the child device is performed with priority, so that the parent device is connected to the PBX or the like. Another object of the present invention is to provide a communication terminal device capable of accepting instruction information from a slave unit during detection of a busy tone and reliably processing the information.

[0005]

According to a first aspect of the present invention, there is provided a communication terminal apparatus comprising a master unit and at least one slave unit , having no polarity reversal detection circuit, and
Busy tone to detect busy tone sent from
By providing detection means on the base unit, the called party is talking
Communication terminal device capable of determining whether or not
The dial data transmission frame transmitted from the slave unit
Slave information receiving means capable of receiving instruction information including a command,
Press dial key when calling from master or slave
With the above, the detection operation by the busy tone detection means is performed.
Control means for controlling the start,
During detection of the busy tone by the
Whether or not instruction information has been received by the slave unit information receiving means
Determination means for determining whether or not
When it is determined that the instruction information has been received, the control unit
Stops the busy tone detection operation, and
Control to give priority to processing based on
Sign.

According to the communication terminal apparatus having the above features, the communication terminal apparatus comprises a master unit and at least one slave unit , does not have a polarity reversal detection circuit, and transmits from the exchange.
Busy tone detection hand to detect incoming busy tone
The callee is busy on a call by providing a stage on the base unit
It is possible to determine whether or not. Also, the slave unit information reception
Dial data transmission from slave unit via communication means
Instruction information including a command can be received. Ma
Also, when a call is made from the master unit or slave unit depending on the control means
In response to the pressing of the dial key, the busy tone detection
The detection operation by the output means is started. At the same time,
The busy tone detecting means.
-While the tone is being detected, the instruction information from the child device
It is determined whether or not the notification has been received. Soshi
And the determining means determines that the instruction information has been received.
The control means performs this busy tone detection operation.
Cancel and prioritize processing based on instruction information from the slave unit.
Manage. This eliminates the need for a polarity reversal detection circuit,
Busy toe to detect busy tone sent from machine
If the master unit is equipped with
Busy after one of the slave unit's dial keys is pressed
The master unit detects the busy tone even when the tone detection starts.
While the busy tone is being detected by the
When receiving instruction information such as a data transmission command
Stops the busy tone detection and displays the instruction information from the slave unit.
By giving priority to processing based on
Process commands from slave units even during
And receive instruction information from the slave unit
And dial processing and the like.

According to a second aspect of the present invention, there is provided the communication terminal device according to the first aspect, wherein the control means determines that the instruction information has been received from the slave unit by the determination means. Is a busy tone not detected
The busy tone detection operation is stopped.

[0008] According to the communication terminal apparatus having the above features, in the communication terminal apparatus according to the first aspect, the control means receives the instruction information from the slave unit by the determination means. If it is determined that the busy tone is not detected, the busy tone detecting operation is stopped.
Dialing, etc., according to the instruction information from the slave unit.
It becomes possible.

Further, a communication terminal according to a third aspect is the communication terminal according to the first or second aspect, wherein the master unit is connected to a private branch exchange.

[0010] According to the communication terminal device having the above features, in the communication terminal device according to the first or second aspect, when the master unit is connected to a private branch exchange, , When communication is started from the slave unit by calling 0,
The base unit stops the busy tone detection operation and
For instruction information including dial data transmission commands, etc.
Because the process is given priority, instruction information from the slave unit is accepted.
For example, dial processing can be performed reliably.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a communication terminal device according to the present invention will be described in detail with reference to the drawings based on an embodiment in which the present invention is embodied as a cordless parent-child telephone device having a voice response function. First, a schematic configuration of a cordless parent-child telephone device having a voice response function according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a schematic configuration of a cordless parent-child telephone device having a voice response function according to the present embodiment. FIG. 1A is a block diagram showing a configuration of a parent device connected to an external communication line via a PBX. (B) is a block diagram showing a configuration of a slave unit capable of communicating with the master unit via a wireless line.

First, as shown in FIG. 1A, a base unit 10 provided in this cordless parent-child telephone device is connected to an external communication line via a private branch exchange (PBX) 1, and has an answering machine function and a facsimile. This is a multi-function telephone device having various functions such as a function, a copy function, a scanner function, and a printer function. As main components, a main unit controller 11, a main unit operation panel 13, a main unit liquid crystal, Display (LCD) 15, parent machine call bell 17, scanner 19, printer 21, codec / decoder 23, modem 25, line control circuit (NCU) 27, handset 2
9, a base unit speaker 31, a base unit microphone 33, a base unit wireless communication control circuit 35, a base unit antenna 37, and a switch 39.

The base unit controller 11 includes a CPU, an RO,
M, RAM, EEPROM, a timer, a logical operation circuit including a voice recognition unit 12 and a caller information recognition unit 14, and various control processes such as a voice response process and a command reception process of a slave unit described later. Execute still,
Programs for various control processes executed by the CPU, data necessary for the control processes, and the like are stored in the ROM in advance.
The RAM is used as a work area and a buffer in various control processes. Further, the EEPROM is provided for storing information such as telephone directory registration, and a busy tone detection flag used in processing described later is also managed here. In addition, the timer controls the duration of the voice in the voice response processing and the ON / OFF of the busy tone described later.
-Used for processing such as measuring the OFF time. Further, the voice recognition unit 12 determines whether or not the length, frequency, and size of the voice input from the parent device microphone 33 or the child device microphone 63 described later fall within the applicable range. It is provided in. In addition, the caller information recognition unit 14 is provided for recognizing caller information (such as a telephone number) transmitted via an external communication line.

The main unit operation panel 13 includes a numeric keypad used for inputting a telephone number and a facsimile number for communicating via the PBX 1 and an external communication line, a confirmation key pressed when registering a telephone directory, and the like. ing. The base unit LCD 15 is provided for displaying a function selection when activating a facsimile transmission function and displaying a telephone number of a communication partner corresponding to a number display service. Further, when detecting a call signal via the external communication line and the PBX 1, the base unit call bell 17 repeats ringing for one second and no sound for two seconds to notify the user around the base unit 10 of an incoming call signal. It is provided for reporting.

The scanner 19 is provided for reading a document when performing facsimile transmission or copying. The printer 21 executes a copy function of printing out facsimile data received via the external communication line and the PBX 1 on recording paper, or printing out image data of a document read by the scanner 19 on recording paper. It is provided in order to.

The encoder / decoder 23 encodes image data read by the scanner 19 in facsimile transmission into a data format for facsimile transmission such as G3 compression format, and conversely, converts compressed image data received in facsimile into a printer. 21 is provided for decoding into data in a format that can be output.

The modem 25 and the NCU 27 are provided for communicating with a communication partner via an external communication line and the PBX 1 and for performing facsimile transmission and reception. The modem 25 also functions as a DSP that performs digital signal processing based on audio input from the parent device microphone 33 or a child device microphone 63 described later when a call signal from an external communication line is detected, Based on the digital signal obtained through the modem 25, the voice recognition unit 12 provided in the base unit controller 11 determines whether a voice response has been made around the base unit 10 or the handset 50. ing. The modem 25 detects a dial tone or a busy tone received via the external communication line and the PBX 1, and sends out a dial tone signal or a busy tone signal to the parent device controller 11.

The handset 29 is connected to an external communication line and P
When a call signal from the BX1 is detected, communication is performed via an external communication line and the PBX1 by going off-hook. In addition, base unit speaker 31 outputs the voice of the communication partner at the time of a hands-free call,
It is provided to output caller information and voice to start communication to the user at the time of voice response processing. further,
Base unit microphone 33 is provided to input a user's voice during a hands-free call or to input a voice around base unit 10 when detecting a call signal from an external communication line and PBX 1. ing. The base station wireless communication control circuit 3
5 is provided for performing wireless communication between the master unit 10 and the slave unit 50 via the master unit antenna 37.
When a command is received from the
1 to output a command reception signal. Further, the switch 39
Is for switching between the voice input from the parent device microphone 33 and the voice input from the child device microphone 63 received via the parent device antenna 37 to the modem 25.

Further, as shown in FIG.
The main components are a slave controller 51 which controls the control center, a slave operation panel 53, a slave liquid crystal display (LCD) 55, a slave calling bell 57, a slave speaker 61, a slave microphone 63, and a slave microphone. A wireless communication control circuit 65 and a slave antenna 67 are provided.

The slave unit controller 51 includes a CPU, an RO,
This is a logical operation circuit including an M, a RAM, an EEPROM, and the like, and the CPU executes various control processes.
Note that programs for various control processes executed by the CPU and data necessary for the control processes are stored in the ROM in advance. The RAM is used as a work area and a buffer in various control processes. Further, the EEPROM is provided for storing information such as telephone directory registration.

The handset operation panel 53 detects a ten-key used for inputting a telephone number or a facsimile number after transmitting 0 and detects a call signal from the external communication line in order to perform communication via the external communication line and the PBX 1. It is provided with a call start key for performing an off-hook operation when a call is made, a confirmation key pressed when registering a telephone directory, and the like. In addition, child unit LCD
Reference numeral 55 is for displaying a telephone number of a communication partner corresponding to the number display service, displaying various messages, and the like. In addition, the slave unit call bell 5
7 indicates that when a calling signal from the external communication line is detected,
It is provided to notify the user around the child device 50 of the incoming of the call signal by repeating the ringing for two seconds and the non-ringing for two seconds.

The handset speaker 61 is used to make a call with a communication partner via an external communication line, and to output caller information and voice to start communication to the user during voice response processing. It is provided in. In addition, the handset microphone 63 is provided for inputting a voice from a user during communication with an external communication line or an extension call. In addition, the slave unit microphone 6
Reference numeral 3 also has a role of inputting a voice around the child device 50 when detecting a call signal from the external communication line. Further, the slave unit wireless communication control circuit 65 is provided for performing wireless communication between the slave unit 50 and the master unit 10 via the slave unit antenna 67.

Here, the modem 25 functions as a busy tone detecting means. The base unit wireless communication control circuit 35 and the base unit antenna 37 constitute a slave unit information receiving unit. Master device controller 11 functions as a determination unit and a control unit.

Next, a description will be given, with reference to FIG. 2, of a busy tone detecting process of the base unit 10 of the cordless parent-child telephone apparatus thus configured. FIG. 2 is a flowchart showing a busy tone detecting process of the base unit 10 of the cordless parent-child telephone device according to the present embodiment. First, as shown in FIG. 2, in step (hereinafter, abbreviated as S) 1, master device controller 11 determines whether or not a dial tone signal or a busy tone signal is input via NCU 27 and modem 25, that is, It is determined whether the dial tone signal or the busy tone signal is ON.
If the dial tone signal or the busy tone signal is not input from modem 25, that is, if the dial tone signal or the busy tone signal is OFF (S1: NO), master controller 11 outputs the busy tone signal in S2. Judging that it is not detected,
The busy tone detection flag is read from the EEPROM, reset (in this embodiment, “0” is substituted), stored again in the EEPROM, and the busy tone detection process is terminated.

If the dial tone signal or the busy tone signal is ON (S1: YES), the master controller 11 sends the master controller 11 via the master antenna 37 and the master wireless communication control circuit 35 in S3. Slave unit 5
From 0, it is determined whether a command signal (instruction information) has been received. If the command signal has been received from the child device 50 (S3: YES), the process of S2 is executed and the busy tone detection process ends. Subsequently, master device controller 11 executes the command received from slave device 50. For example, if the command received from the slave 50 is a dial data sending command instructing sending of dial data, the dial data received from the slave 50 is sent to the PBX 1 via the modem 25 and the NCU 27.

The parent device controller 11 is provided with a child device 50.
(S3: N)
O) In S4, it is determined whether or not a predetermined time (about 1 second in the present embodiment) has elapsed since the dial tone signal or the busy tone signal was turned ON. If the predetermined time has not elapsed since the dial tone signal or the busy tone signal was turned on (S4: NO),
The processing after S1 is executed again.

If a predetermined time has elapsed since the dial tone signal or the busy tone signal was turned on (S4: YES), master controller 11 again transmits a dial tone signal or a busy tone signal from modem 25 in S5. It is determined whether or not an input has been made, that is, whether or not the dial tone signal or the busy tone signal has been turned ON. And the master controller 1
When the dial tone signal or the busy tone signal is ON (S5: YES), in S6, the master unit antenna 37 and the master unit wireless communication control circuit 35 are set.
It is determined whether or not a command signal has been received from the child device 50 via the. Subsequently, if a command signal has been received from the child device 50 (S6: YES), the process of S2 is executed and the busy tone detection process ends. Subsequently, master device controller 11 executes the command received from slave device 50. For example, if the command received from the slave 50 is a dial data sending command instructing sending of dial data, the dial data received from the slave 50 is sent to the PBX 1 via the modem 25 and the NCU 27.

The parent device controller 11 is provided with a child device 50.
(S6: N)
O) In S7, after a predetermined time (about 1 second in the present embodiment) has elapsed since the dial tone signal or the busy tone signal was turned on (S4: YES), a predetermined delay time (in the present embodiment, (About 2 seconds) has elapsed. If the predetermined delay time has not elapsed (S7: NO), the processing after S5 is executed again. If the predetermined delay time has elapsed (S7: YES), the process of S2 is executed and the busy tone detection process ends.

In S5, the master controller 1
When the dial tone signal or the busy tone signal is OFF (S5: NO), it is determined in S8 whether or not the dial tone signal or the busy tone signal is input from the modem 25 again, that is, the dial tone signal or the busy tone signal. It is determined whether the signal is ON. If the dial tone signal or the busy tone signal is ON (S8: YES), master device controller 11 executes the process of S2 and ends the busy tone detection process.

If the dial tone signal or the busy tone signal is OFF (S8: NO), the master controller 11 sends the master controller 11 via the master antenna 37 and the master wireless communication control circuit 35 in S9. Slave unit 5
It is determined whether a command signal has been received from 0. If a command signal has been received from the child device 50 (S9: YES), the process of S2 is executed and the busy tone detection process ends. Subsequently, the master controller 11
Executes the command received from the child device 50. For example, if the command received from the slave 50 is a dial data transmission command instructing transmission of dial data, the dial data received from the slave 50 is transmitted to the modem 25.
And to the PBX 1 via the NCU 27.

The parent device controller 11 is provided with a child device 50.
(S9: N)
O) In S10, it is determined whether or not a predetermined time (about 1 second in the present embodiment) has elapsed since the dial tone signal or the busy tone signal was turned off. And
Dial tone signal or busy tone signal is off
If the predetermined time has not passed since the time (S10:
NO), and execute the processing after S8 again.

If a predetermined time has passed since the dial tone signal or the busy tone signal was turned off (S10: YES), master controller 11 proceeds to S1.
In step 1, it is determined that a busy tone signal has been detected, and the busy tone detection flag is read from the EEPROM, set (in this embodiment, "1" is substituted), stored again in the EEPROM, and the busy tone detection process is performed. finish.

As described in detail above, in the cordless parent-child telephone device of the present embodiment, in the busy tone detection process of the parent device 10, the parent device controller 11 measures the time during which the busy tone signal is ON (S1 to S1). S4),
After a predetermined time has passed since the busy tone signal was turned on,
Measurement of the elapse of a predetermined delay time (S5 to S7) and measurement of the time during which the busy tone signal is OFF (S8 to S7)
During each measurement of S10), the presence or absence of the reception of the command signal from the slave 50 is detected. When the command signal is received during each measurement (S2: YES, S6: YE
In S, S9: YES), the busy tone detection flag is read from the EEPROM, reset (in this embodiment, “0” is substituted), stored again in the EEPROM, and the busy tone detection process is terminated. , The busy tone detection process ends as busy tone non-detection. Subsequently, master device controller 11 executes the command received from slave device 50. For example, if the command received from the slave 50 is a dial data send command instructing to send dial data, the dial data received from the slave 50 is transmitted to the PBX via the modem 25 and the NCU 27.
Send to 1.

Therefore, even if the detection of the busy tone is started after one of the dial keys of the master unit 10 or the slave unit 50 is pressed, the master unit 10 receives the command from the slave unit 50 during the busy tone detection. Since the busy tone detection process is stopped and the command processing from the slave unit 50 is performed with priority, the command from the slave unit 50 during the busy tone detection can be reliably processed. Performance can be improved. Also, when base unit 10 is connected to private branch exchange 1 and starts communication from slave unit 50 by calling 0, master unit 10 receives a command from slave unit 50 during busy tone detection. Stop busy tone detection process,
Since the command processing from the slave unit 50 is performed with priority, the command from the slave unit 50 during the busy tone detection can be reliably processed. Further, when the base unit controller 11 determines that the command from the slave unit 50 has been received, the detection of the busy tone is stopped as a busy tone non-detection, so that the polarity inversion detection circuit for detecting the polarity inversion from the telephone exchange is provided. This is unnecessary, and the number of parts and the manufacturing cost can be reduced. Furthermore, the child device 5
0 includes a dial data transmission command instructing transmission of dial data.
When communication is started from the slave unit 50 by calling 0 when 0 is connected to the PBX 1 or the like, the master unit 10 can accept a dial data transmission command from the slave unit 50 even while a busy tone is being detected. And dial processing can be performed.

It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various improvements and modifications can be made without departing from the gist of the present invention.

[0036]

As described above, according to the present invention, the polarity reversal detection is performed.
Busy tone sent from switchboard without output circuit
With a busy tone detection means for detecting the parent machine, call
Send dial data from the handset during the busy tone detection when
When the instruction information such as the outgoing command is received, the busy tone detection process is stopped, and the process for the instruction information from the child device is performed with priority. Therefore, even when the parent device is connected to the PBX or the like, It is possible to provide a communication terminal device that can receive instruction information from a slave unit during detection of a busy tone and can reliably process the information.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a cordless parent-child telephone device having a voice response function according to an embodiment;
(A) is a block diagram showing a configuration of a master unit connected to an external communication line via a PBX, and (B) is a block diagram showing a configuration of a slave unit capable of communicating with the master unit via a wireless line.

FIG. 2 is a flowchart showing a busy tone detection process of the parent device of the cordless parent-child telephone device according to the embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 private branch exchange 10 master unit 11 master unit controller 25 modem 27 NCU 35 master unit wireless communication control circuit 37 master unit antenna 50 slave unit 53 slave unit operation panel 65 slave unit wireless communication control circuit 67 slave unit antenna

──────────────────────────────────────────────────の Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) H04M 1/00 H04M 1/72-1/737 H04B 7/24-7/26 102 H04Q 7/00-7 / 38 H04Q 3/58-3/62

Claims (3)

(57) [Claims] 1. A communication system comprising a master unit and at least one slave unit , having no polarity reversal detection circuit and being sent from an exchange.
Busy tone detection means for detecting a busy tone
Side to determine whether the called party is busy.
A communication terminal device capable of determining a dial data transmission command transmitted from the slave unit.
Remote unit information receiving means that can receive instruction information including , and pressing a dial key when calling from the master unit or slave unit
With the above, the detection operation by the busy tone detection means is performed.
Control means for controlling to start, and busy tone detection by the busy tone detection means
The instruction information from the slave unit is transmitted by the slave unit information receiving means.
Determining means for determining whether or not the instruction information has been received by the determining means.
The control means stops the busy tone detection operation.
And give priority to the processing based on the instruction information from the slave unit.
A communication terminal device for controlling. 2. The method according to claim 1, wherein the control means stops the busy tone detection operation as busy tone non-detection when the determination means determines that the instruction information from the slave unit has been received. The communication terminal device according to claim 1. 3. The communication terminal device according to claim 1, wherein the master unit is connected to a private branch exchange.