JP2001169003A - Communication terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication terminal device which realizes a standby mode with low power consumption and also can correspond to each service offered by a communication provider. SOLUTION: A calling signal detecting part 11 detects a calling signal from a telephone line network, a power supply controlling part 70 makes a main power supply 83 feed power to perform return from the standby mode, and responds to the calling signal while the operation of a G3 substrate 20 being a part of a substrate is possible due to the return.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device, and more particularly, to a communication terminal device capable of supporting various services in a telephone network.

[0002]

2. Description of the Related Art In recent years, in a communication terminal device such as a facsimile apparatus, in order to reduce power consumption during standby, a main power supply is turned off during standby and a main sub-power supply for standby instructs the main power supply to be turned on. For example, monitoring of a power return signal is performed.

[0003] The return (on) of the main power supply is described in Japanese Patent Laid-Open No. 5-26.
As in the facsimile apparatus described in Japanese Unexamined Patent Publication No. 0229, the operation is performed using a user operation or a call signal from the telephone network as a trigger. As shown in FIG. 8, the operation at the time of returning to the main power supply waits for detection of a return signal triggered by a call signal from the telephone network (NO in step 501), and when the return signal is detected (step 501). (YES), the main power supply is restored (step 502), and initialization of each substrate is started (step 503). Next, it waits for the initialization of each board to be completed (NO in step 504), and when the initialization is completed for all the boards (YES in step 504), the startup is completed and the response to the line is started. (Step 505), the normal operation starts.

As described above, when the main power supply is restored,
Since it is necessary to initialize each board, it takes several tens of seconds from the detection of a call signal from the telephone network to the time of answering, and the caller must wait for that time. become.

On the other hand, recently, a carrier has provided a caller ID notification service / modem dial-in service. In this service, a calling ID including a calling telephone number, a non-notification reason, called number information, and the like is transmitted as a modem signal from the network side.

FIG. 9 is a diagram showing a sequence at the time of communication of a calling ID. As shown in the figure, when notifying the calling ID, the polarity of the line is inverted by the operation of the subscriber line exchange (step 601), and then the I line is transmitted from the subscriber line exchange.
An ID receiving terminal activation signal (information receiving terminal activation signal: CAR) is transmitted to the D receiving terminal (communication terminal device corresponding to the caller ID notification service / modem dial-in service) (step 602). When the ID receiving terminal returns a primary response signal to the local exchange in response to the CAR (step 6).
03), the calling line ID is transmitted from the local exchange to the ID receiving terminal as a modem signal.

When receiving the calling ID, the ID receiving terminal returns a reception completion signal to the local exchange (step 60).
5) Then, a call signal is transmitted from the local exchange to the ID receiving terminal (step 606). When the ID receiving terminal responds to this paging signal and returns a secondary response signal (step 607), the local exchange changes the polarity of the line (step 608), and then the local exchange and the ID receiving terminal return. Communication is performed between (step 609).

The transmission of the calling ID from the subscriber line exchange is performed only when the subscriber line exchange receives the primary response signal of step 603 within 6 seconds after the polarity inversion in step 601. Therefore, the ID receiving terminal:
In order to receive the calling ID, it is necessary to return a primary response signal within 6 seconds after the reversal of the polarity (reception of the ID receiving terminal signal).

[0009]

However, as described above, in a communication terminal apparatus having a standby mode with low power consumption, it takes several tens of seconds from when a signal is received from a network until communication becomes possible. Since it takes time, the time required for the response is long. Further, a primary response signal for receiving the calling ID cannot be returned within a predetermined time, and services such as a caller ID notification service / modem dial-in service cannot be supported.

Accordingly, an object of the present invention is to provide a communication terminal device which can realize a standby mode with low power consumption and can cope with each service provided by a communication carrier.

[0011]

In order to achieve the above object, the present invention provides a communication terminal device having a low power standby mode in which a main power supply is cut off and a minimum power supply is performed by an auxiliary power supply. A paging signal detection unit that is supplied with the auxiliary power and detects a paging signal from a network including at least an information receiving terminal activation signal, and processes an information signal that is supplied with the main power and received through the network. Information signal processing means for performing, and power supply control means for turning on the main power supply in response to detection of a call signal by the call signal detection means, the information signal processing means, the power supply control means that the main power supply It is activated by being turned on, and after the activation, processing of the information signal is started irrespective of the state of other units.

According to a second aspect of the present invention, in the first aspect of the present invention, the handset is connected to the line network and communicates via the line network, and the line network is connected to the line network even in a low power standby mode. Connection control means for disconnecting the connection with the handset.

According to a third aspect of the present invention, there is provided a communication terminal apparatus having a low power standby mode in which a main power supply is cut off and a minimum power supply is performed by an auxiliary power supply. Calling signal detection means for detecting a signal, information signal processing means for processing an information signal supplied by the auxiliary power supply and received via the network,
Line connection control means for controlling the connection between the line network and the signal processing means, the line connection control means, when the call signal detection means detects a predetermined call signal, the line network and The information signal processing means is connected.

According to a fourth aspect of the present invention, in the third aspect of the invention, the predetermined calling signal is an information receiving terminal activation signal, and the signal processing means includes a modem including the information receiving terminal activation signal. The method is characterized by processing a signal.

The invention according to claim 5 is the invention according to claim 4, further comprising power supply control means for turning on the main power supply in response to detection of a call signal by the call signal detection means, and the signal processing means. Obtains a caller number based on an information signal received from the circuit network, and the power control means, when the caller number obtained by the signal processing means is registered in advance, The power supply is turned on.

According to a sixth aspect of the present invention, in the third aspect of the invention, the predetermined call signal is a DTMF signal, and the signal processing means performs a dial-in process based on the DTMF signal. It is characterized by.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a communication terminal device and a control method thereof according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing a schematic configuration of a communication terminal device. As shown in FIG.
Is an NCU (line controller) board 10, a G3 board,
It comprises an AIN board 30, a scanner unit 40, a printer unit 50, a control panel unit 60, a power supply control unit 70, and a power supply unit 80.

The NCU board 10 is provided with a calling signal detecting unit 1
1 and the G3 board 20 has a CPU unit 21 and a ROM / R
An AM unit 22 and a V23 signal processing unit 23 are provided. M
The AIN board 30 includes a CPU unit 31 and a ROM / RAM unit 32
The control panel unit 60 includes a return signal detection unit 61. The power supply unit 80 includes a plug 81 and an SS
An R (solid state relay) 82, a main power supply 83, and a sub power supply 84 are provided.

The NCU board 10 serves as an interface with the telephone line network, and the call signal detecting section 11 detects a call signal from the telephone line network (subscriber switchboard).

G3 board, line ON in NCU board 10
/ OFF control, modem control, and the like are performed by the operation of the CPU unit 21. The ROM / RAM unit 22 includes the CPU unit 2
1 stores the programs and data necessary for the operation of
The signal processing unit 23 encodes and decodes facsimile data to be transmitted and received.

The MAIN board 30 controls the entire communication terminal device 1 by the CPU 31, and mainly inputs an image from the scanner 40, outputs an image from the printer 50, and performs a user operation from the control panel 60. Of the reception. The ROM / RAM unit 32 stores
A program and data necessary for the operation of the PU unit 21 are stored.

The scanner unit 40 inputs an image to be transmitted, and the printer unit 50 prints out the received image. The control panel unit 60 is a user interface that accepts various user operations, and the return signal detection unit 61 detects a return signal generated when the control panel unit 60 is operated in a state where the communication terminal device 1 is in the standby mode. To detect.

The power control section 70 controls the SSR 82 of the power section 80 to switch the main power supply 83 on and off. The switching of the main power supply 83 is OFF when the communication terminal device 1 shifts to the standby mode when the communication terminal device 1 does not operate for a certain time.
It is set to ON when returning from the standby mode triggered by detection of a call signal by the call signal detection unit 11 and detection of a return signal by the return signal detection unit 61.

The sub power supply 84 is connected to the calling signal detecting section 1.
1 and the return signal detection unit 61 and the power supply control unit 70, and the main power supply 83 supplies power to the units other than the unit supplied with the sub power supply 84 by the power supply control unit 7.
This is performed by control of 0.

As will be described below, the communication terminal device 1 is configured to respond immediately upon completion of initialization of the G3 board 20 when returning from the standby mode by a call signal from the telephone line network.

Here, with reference to FIGS. 2 to 4, an operation flow when the communication terminal device 1 returns from the standby mode by a call signal from the telephone line network will be described. 2 to 4
5 is a flowchart illustrating a flow of an operation when the communication terminal device 1 returns from the standby mode.

When the communication signal device 1 is in the standby mode and the call signal detection unit 11 detects a call signal from the telephone network (YES in step 101), the power supply control unit 70 controls the SSR 82 to The power supply 83 is turned on (step 102). When the main power supply 83 is turned on, power is supplied to each unit, and the NCU board 10 and the G3 board 20 and M
Initialization is started for each substrate including the AIN substrate 30 (step 103).

The initialization process for each substrate is performed in parallel, but here, the MAIN substrate 30 and the G3 substrate 2
The description will be made separately for 0 and other substrates.

When initialization is started on a substrate other than the MAIN substrate 30 and the G3 substrate 20 (the NCU substrate 10 and another substrate not shown, and other substrates are omitted because they do not directly affect communication) (step 111). ), The initialization of these substrates is completed without performing particularly complicated operations (YES in step 112). In the case of the NCU substrate 10, C
Since no PU or RAM is provided, the time required for initialization is substantially zero.

When the initialization of the MAIN substrate 30 is started (step 121) and the initialization of the MAIN substrate 30 is completed (YES in step 122), the process waits for the completion of the initialization of all the substrates (NO in step 123). When the initialization for all the boards is completed (YES in step 123), the system data (including the registered telephone number and the like) is transferred to the G3 board (step 124), and the start-up of the entire communication terminal device 1 is completed. The initialization of the MAIN substrate 30 is performed by the CP
It takes the most time to initialize the U section 31 and the ROM / RAM section 32 and transfer system data.
It takes about 0 seconds.

When the initialization of the G3 board 20 is started (step 131) and the initialization of the G3 board 20 is completed (YES in step 132), the call signal detecting section 11 detects a call signal from the telephone network. It is determined whether or not the call signal is detected, that is, whether or not the calling signal detected in step 101 is continued (step 133). Here, if the calling signal is not detected (NO in step 133),
During a certain period of time, it waits for a ringing signal to be detected again (NO in step 134). If no ringing signal is detected within a certain period of time (YES in step 134), the power supply control unit 70 Control the power supply 83,
The communication terminal device 1 is shifted to the standby mode (step 1).
35), end the process.

On the other hand, if a calling signal is detected in step 133 (YES in step 133), the G3 board 20
The CU board 10 is controlled to close the line (step 13
6), start answering the call (step 13)
7). Thereafter, when the system data is transmitted from the MAIN board 30, the system data is received (step 138). If the communication restriction (for example, rejection of the specific telephone number) is not set in the system data (step 138). 13
If the answer is YES in step S9, the communication is continued to operate in the normal mode and the communication restriction is set (step S13).
No in step 9), the communication is interrupted (step 140), and the communication terminal device 1 is shifted to the standby mode (step 13).
5), end the processing. Note that the initialization of the G3 board 20 is faster than the initialization of the MAIN board 30 if the time required before receiving the system data from the MAIN board 30 is normal without any trouble.
For example, it takes about 3 seconds.

In the meantime, the communication terminal device 1 is often provided with an external telephone (receiver), and in such a case, an unusual sound is generated when the CAR is received (CAR is not activated). 0.5 second ON / O of 15-20Hz
FF, general call signal is 15-20Hz for 1 second ON, 2
Seconds OFF).

The ringing caused by the CAR is not only annoying to the user, but also affects the reception of the calling ID when the user goes off-hook in response to the ringing. Further, if the ringing of the external telephone is set to be stopped, the ringing is not performed even for a general call signal, which may cause inconvenience.

Therefore, in the communication terminal device 1, on the NCU board 10, the telephone line 91 and the external telephone 92 are connected via the relays 12 and 13 as shown in FIG. .

In this configuration, the relay 13 can be controlled even in the low power standby mode, and the telephone line is disconnected from the external telephone.

When the call signal detecting section 11 detects the CAR, the relay 12 is switched to connect the line to the G3 board 20, and the V23 signal processing section 23 receives the calling ID. At this time, the external telephone does not ring because it is disconnected from the telephone line by the relay 13.

On the other hand, when the call signal detecting section 11 detects an ordinary call signal instead of the CAR, the control section controls the relay 13 to connect the external telephone to the telephone line. This allows the external telephone to ring according to a call signal from the telephone line.

Next, the second communication terminal apparatus according to the present invention will be described.
An example will be described. In the second embodiment,
When the communication terminal device 1 is in the standby mode, the call signal detecting unit 11, the return signal detecting unit 61, the power control unit 70
In addition, the V23 signal processing unit 23 is also supplied with power by the sub power supply 84.

Here, the return operation of the communication terminal device 1 from the standby mode in the second embodiment will be described with reference to FIG. FIG. 6 is a flowchart illustrating a flow of returning the communication terminal device 1 from the standby mode in the second embodiment.

When the call signal detecting section 11 detects a call signal from the telephone network in a state where the communication terminal apparatus 1 is in the standby mode (YES in step 201), the power supply control section 70 triggers the SSR 82 by using this as a trigger. Under control, the main power supply 83 is turned on (step 202). When the main power supply 83 is turned on, initialization of each substrate is started (step 203).

If the call signal detected by the call signal detecting section 11 is CAR (Y in step 204).
ES), the relays 12 and 13 of the NCU board 10 are switched, and the telephone line and the V23 signal processing unit 23 are connected (Step 205). In this state, the V23 signal processing unit 23 performs V23 communication (such as reception of a calling ID) with the local exchange (step 206), and thereafter switches the relays 12 and 13 to end the CAR response (step 207).

When the CAR response ends or the calling signal is CA
If it is other than R (NO in step 204), the process waits for completion of initialization of all substrates (NO in step 208), and when the initialization of all substrates is completed (YES in step 208),
The startup of the communication terminal device 1 is completed.

Next, the third communication terminal apparatus according to the present invention will be described.
An example will be described. In the third embodiment,
As in the case of the second embodiment, when the communication terminal device 1 is in the standby mode, the call signal detection unit 11, the return signal detection unit 61, the power control unit 70, the V23 signal processing unit 23
Is supplied with power by the sub power supply 84. Further, the power supply control unit 70 in the third embodiment includes a main power supply 83
Is input for each substrate.

Here, the return operation of the communication terminal device 1 from the standby mode in the third embodiment will be described with reference to FIG. FIG. 7 is a flowchart illustrating a flow of returning the communication terminal device 1 from the standby mode in the third embodiment.

When the call signal detector 11 detects a call signal from the telephone line network (YES in step 301) while the communication terminal device 1 is in the standby mode, the power supply controller 70 triggers the SSR 82 by using this as a trigger. The main power supply 83 is turned on under control, and the MAIN board 30 and the G3 board 20
Is restored (step 302).

Here, if the call signal detected by the call signal detecting section 11 is CAR (Y in step 303).
ES), the power is restored in step 302,
Initialization of the board 30 and the G3 board 20 is started (step 304), and subsequently, the relays 12, 13 of the NCU board 10
Is switched, and the telephone line and the V23 signal processing unit 23 are connected (step 305).

In this state, the V23 signal processing unit 23 performs V23 communication (such as reception of a calling ID) with the local exchange (step 306), and thereafter switches the relays 12 and 13 to complete the CAR response (step 306). 307) After the transfer of the system data is completed, the registration state of the obtained calling number is checked (step 308).

As a result of the registration state of the calling number,
If it is X (YE in step 309)
S), the power supply of the other substrates is restored by the power supply control unit 70 (step 310), and the respective substrates are initialized (step 311), and the start-up of the communication terminal device 1 is completed.

On the other hand, as a result of the registration state of the calling number, if the number is not a facsimile number (NO in step 309), the power supply control unit 70 cuts off the power of the MAIN board 30 and the G3 board 20 ( Step 312), the communication terminal device 1 shifts to the standby mode.

If the call signal detected by the call signal detecting section 11 is not CAR in step 303 (NO in step 303), the power control section 7
0 returns power to all other substrates (step 31).
0), the respective substrates are initialized (step 311), and the start-up of the communication terminal device 1 is completed.

Next, the fourth embodiment of the communication terminal apparatus according to the present invention will be described.
An example will be described. In the fourth embodiment,
In the configuration of the communication terminal device 1 according to the second embodiment, V2
In place of the three signal processing unit 23, a DTMF (Dual To
ne MultiFrequency) signal (PB (P
U (Bush button) signal)
The configuration includes a TMF signal detection unit (not shown). With this configuration, instead of the modem dial-in service,
The same processing can be performed for a dial-in service using a PB signal. The operation of each unit in this configuration is the same as that of the V23 signal processing unit in the description of the second embodiment.
Since it is the same as when it is replaced with the TMF signal detection unit,
Description is omitted.

[0054]

As described above, according to the present invention, a call signal from the telephone line network is detected to return from the standby mode, and a part of the operation is enabled by the return. , So that various services such as a caller ID notification service / modem dial-in service can be supported without making the caller wait more than necessary.

Further, since the power supply to the V23 signal processing unit is configured to be energized in the standby mode, it is possible to immediately respond to the CAR upon returning from the standby mode, and to provide a caller ID notification service / modem dial-in service. Various services can be supported.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a schematic configuration of a communication terminal device.

FIG. 2 is a flowchart (1) illustrating a flow of an operation when the communication terminal device 1 returns from a standby mode.

FIG. 3 is a flowchart (2) showing a flow of operation when the communication terminal device 1 returns from the standby mode.

FIG. 4 is a flowchart (3) showing an operation flow when the communication terminal device 1 returns from the standby mode.

FIG. 5 is a diagram showing a configuration of an NCU substrate 10;

FIG. 6 is a flowchart illustrating a flow of returning from a standby mode of the communication terminal device 1 according to the second embodiment.

FIG. 7 is a flowchart illustrating a flow of returning from the standby mode of the communication terminal device 1 according to the third embodiment.

FIG. 8 is a flowchart showing a flow of an operation when returning from a standby mode in a conventional communication terminal device.

FIG. 9 is a diagram showing a sequence at the time of communication of a calling ID.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Communication terminal device 10 NCU board 11 Call signal detection part 20 G3 board 21 CPU part 22 ROM / RAM part 23 V23 signal processing part 30 MAIN board 31 CPU part 32 ROM / RAM part 40 Scanner part 50 Printer part 60 Control panel part 61 Return signal detection unit 70 Power supply control unit 80 Power supply unit 81 Plug 82 SSR 83 Main power supply 84 Sub power supply

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Akio Arai 3-7-1, Fuuchi, Iwatsuki-shi, Saitama Prefecture Fuji Xerox Co., Ltd. Iwatsuki Office (72) Ryuichiro Kobayashi 3-7-1, Fuuchi, Iwatsuki-shi, Saitama No. Fuji Xerox Co., Ltd. Iwatsuki Office (72) Inventor Tokuji Ueda 3-7-1, Fuwa, Iwatsuki City, Saitama Prefecture Fuji Xerox Co., Ltd. Iwatsuki Office F Term (reference) 5C062 AA02 AA12 AB26 AB38 AB42 AB46 AB49 AB51 AC58 AE14 AF01 AF03 BA00 5K037 AA13 AB02 CA01 DA04 DA08 5K101 KK01 LL01 NN45

Claims (6)

[Claims] 1. A communication terminal device having a low-power standby mode in which a main power supply is cut off and a minimum power supply is performed by an auxiliary power supply. Paging signal detection means for detecting a paging signal; information signal processing means for processing an information signal supplied by the main power supply and received via the line network; and responding to detection of the paging signal by the paging signal detection means. Power signal control means for turning on the main power, and the information signal processing means is started by turning on the main power by the power control means, and after the start, regardless of the state of other parts. A communication terminal device for starting processing of the information signal. 2. A handset connected to the line network for making a call via the line network, and a connection control means for disconnecting the line network from the handset even in a low power standby mode. The communication terminal device according to claim 1, comprising: 3. A communication terminal device having a low-power standby mode in which a main power supply is cut off and a minimum power supply is performed by an auxiliary power supply, wherein a call signal is detected by a power supply from the auxiliary power supply and detecting a call signal from a line network. Means, information signal processing means which is supplied with power by the auxiliary power source and processes information signals received via the network, and line connection control means for controlling connection between the network and the signal processing means. A communication terminal device, wherein the line connection control means connects the line network and the information signal processing means when the call signal detection means detects a predetermined call signal. 4. The information processing apparatus according to claim 3, wherein the predetermined calling signal is an information receiving terminal activation signal, and the signal processing means processes a modem signal including the information receiving terminal activation signal. Communication terminal device. 5. A power supply control unit for turning on the main power supply in response to detection of a call signal by the call signal detection unit, wherein the signal processing unit transmits a signal based on an information signal received from the line network. The power supply control unit turns on the main power when the caller number obtained by the signal processing unit is registered in advance. Communication terminal device. 6. The communication terminal device according to claim 3, wherein said predetermined call signal is a DTMF signal, and said signal processing means performs dial-in processing based on said DTMF signal.