JP2007282149A - Power saving method for telephone system, and telephone system with power saving function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the increase of installation cost and to enable a user to easily and simply implement a power saving setup and a setup release by using a telephone set for electric power failure. <P>SOLUTION: Telephone sets 20-AB for power failure originating and terminating calls by directly connecting a speech path to a trunk line are provided while being connected to an extension in addition to ordinary key telephone sets 20-N. When a predetermined power saving setting dial number is received from one of the key telephone sets 20-N continuously to call origination, master units 10-AB control a power supply control section 16 and a power source section 17 from a control section 14-AB, cut off commercial power supply and provide a power saving state. When a predetermined power saving release signal such as a code using predetermined dial pulses, for example, is received from one of the telephone sets 20-AB for power failure via a PDT19-AB, on the other hand, supply of a commercial power source is started. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a power saving method for a telephone apparatus represented by a private branch exchange or a button telephone apparatus that switches between a plurality of office lines and a plurality of telephones and between the telephones in order to establish the call, and a power saving function thereof. The present invention relates to an attached telephone device. In particular, the present invention relates to a power-saving method of a telephone device and a telephone device with a power-saving function that are easy and easy for a user who handles a telephone to turn off the power for power saving and to turn on the power when returning from power saving.

  As a power-saving measure for telephone devices installed in the company, for example, button telephone devices, the power to the button telephone device may be turned off at night and holidays when the phone is not used, especially for long holidays. It has been broken. Also, the power supply is cut off in the case of a leakage test on the commercial power supply side. However, the main device of this key telephone device is usually installed in a narrow corner of the office, such as a storage, so when the last employee turns off the power or the first attendee turns on the power. In that case, the operation is not easy.

  A technique for solving this problem is disclosed in, for example, Japanese Patent Laid-Open No. 56-146388 (Patent Document 1). An outline of this technique will be described with reference to FIG. 13. The key telephone main device 100 has a power saving timer 115 for the commercial power supply cut-off. The power saving timer 115 has, for example, a daily leaving time set, and when the set time is reached, the control unit 114 receives the notification and drives the power supply unit 117 via the power control unit 116, thereby pressing the button telephone device. Disconnect the commercial power supply. In order to start the power supply from this power saving state, a call operation from a specific telephone 122 installed in a guard room or the like is required. An auxiliary power source such as a battery is used as the power source for starting the power supply. In this technique, the specific telephone set 122 includes a line circuit different from the normal telephone circuit, and a special path for notifying the control unit 114 of a call for power supply is provided.

  In the configuration as in Patent Document 1, the operation for turning off and on the commercial power supply is easy. However, when the setting change of the power-off time occurs such that the leaving time is not fixed due to work, the time Since the setting software needs to be changed, the disconnection setting is not easy.

  As this improvement measure, for example, there is one disclosed in JP-A-4-124998 (Patent Document 2). The outline of this technology will be described with reference to FIG. 14. For example, a setting signal is sent from the power supply control unit 214 to the power supply unit 215 by operating a power saving setting button, and the commercial power supply is cut off. Accordingly, the commercial power supply can be easily cut off by the last person leaving the business office performing this operation. On the other hand, to turn on the power, each key telephone 220 is provided with a release signal transmission circuit 221, and the button operation of the release signal transmission circuit 221 is output through the communication path.

  That is, the key telephone main device 200 is provided with a switch SW (switch) 212 for switching between the extension IF (interface) 211 and the power saving cancellation detection unit 213 for each key telephone 220, and the telephone call of the key telephone 220 is in a commercial power-off state. The road is connected to the power saving cancellation detection unit 213. Accordingly, the button operation of the release signal transmission circuit 221 is detected by the power saving release detection unit 213 and transmitted to the power source unit 215 via the power control unit 214 as a power saving setting release signal.

  In this Patent Document 2, there is no restriction on the time to turn off the commercial power supply, but each button telephone 220 and telephone main device 200 have functions added. In such a conventional key telephone device, for the convenience of the user operation, it is necessary to add functions to all of the plurality of telephones accommodated in the telephone main device, so an increase in cost is inevitable.

  On the other hand, telephone devices such as private branch exchanges and key telephones are usually equipped with a power outage telephone that is directly connected to the office line during a power outage in order to perform the telephone function even in the event of a power outage in an emergency such as the Great East Japan Earthquake. It has been. For example, Japanese Patent Laid-Open No. 2000-13824 (Patent Document 3) discloses a key telephone with a power failure function as a power failure telephone. This telephone is provided with both a normal telephone circuit and a telephone circuit for power failure, and is connected to the office line by switching between energization / power failure of the commercial power source. Thus, a telephone device that interconnects a plurality of office lines and a plurality of extensions needs to be able to make incoming and outgoing calls to the office line of the operating telephone station in the event of a power failure. Therefore, this power failure telephone can be used for the number of key telephones that maximize the number of office lines.

  It is conceivable to apply the telephone with a power failure function of Patent Document 3 to the specific telephone of Patent Document 1. Furthermore, when the telephone with a power failure function of Patent Document 3 is applied to the button telephone of Patent Document 2, the telephone main device switching SW is included only in each telephone with a power failure function, and the number thereof can be reduced. Cost reduction. However, the telephone with a power failure function of Patent Document 3 is intended for power failure / energization of a commercial power supply, but is not intended for power saving. Therefore, specific means for power saving setting and cancellation of the setting are not disclosed.

JP 56-146388 A JP-A-4-124998 JP 2000-13824 A

  A problem to be solved is to use a power failure telephone in a telephone device with a power saving function to suppress an increase in equipment cost and to realize power saving setting and cancellation of the setting that are simple and easy for the user.

  The present invention is a telephone apparatus that accommodates a plurality of office lines and a plurality of extensions, such as a private branch exchange, a button telephone apparatus, etc., and makes use of a power failure telephone for power saving setting and cancellation of the setting. It is an object of the present invention to suppress the rise and to be easily and easily realized by the user.

  For this reason, in the power saving method of the telephone device according to the present invention, at least one power outage telephone that is directly connected to the office line to make and receive calls is connected to an extension in addition to a general telephone, When the telephone device is in a power saving state, supply of commercial power is started when a predetermined power saving cancellation signal is received from one of the power failure telephones. The power saving state can be set by any means. For example, when the main unit receives a predetermined power saving setting dial number from one of conventional telephones, it is realized by cutting off the commercial power supply. it can.

  With such a configuration, the user can easily and easily execute the power saving setting and the setting cancellation by previously storing the power saving setting dial number and the power saving cancellation signal in the main device. That is, one power saving setting can be made by calling a power saving setting dial number as a specific dial number from any regular telephone. The other power saving setting can be canceled by a power saving cancellation signal transmission operation from the power failure telephone. For this reason, there is no change in the regular telephone, and the power outage telephone and its related circuit with a small quantity need only be added to change the power saving, so that the installation cost is only slightly increased.

  The power saving cancellation signal may be a predetermined power saving cancellation dial number by a call from a power failure telephone. Further, the power saving cancellation signal may be a predetermined current / voltage change in a speech path directly connected to the office line, generated by an additional circuit.

  In a specific power saving telephone apparatus according to the present invention, a power failure telephone is connected to at least one of the extensions. The maximum number of power outage telephones is preferably the number of office lines. During a power failure or power saving setting, this power failure telephone is directly connected to the office line through the telephone line and receives a DC power supply from the telephone station, thereby making a call to the office line and an incoming call from the office line. Therefore, the power failure telephone can transmit a dial number code for power saving setting and a cancel signal for canceling the setting to the communication path. In addition, the main unit connects the office line on the one hand, and connects the regular telephone set as an extension to the other side to control each interconnection, and the power failure telephone set as the extension line in the event of a power failure or power saving. Directly connected to

  In addition, when the main unit is in a power saving state, it receives commercial power from the power failure telephone through a predetermined power saving cancellation procedure when it receives a signal that matches a power saving cancellation signal stored in advance via the communication path. Start. In the power saving state, it is desirable that the main device cuts off the commercial power supply according to a predetermined power saving setting procedure when receiving a dial number code that matches the power saving setting number stored in advance from the regular telephone.

  It is desirable that the predetermined power saving cancellation signal transferred via the communication path is a predetermined power saving cancellation dial number that is dialed when a call is made because a special additional function is not required for the telephone. For example, the main apparatus can be provided with a pulse signal detector provided with a photocoupler in a communication path to which the power failure telephone is connected, and a dial code can be detected from a DP (direct current intermittent) signal transferred to the communication path. Also, a dial code from a DTMF (dial sound multi-frequency) signal can be detected by providing an MF transformer on the speech path.

  When the power outage telephone has release signal sending means for changing the current / voltage of a speech path directly connected to the office line by a user's button operation by a predetermined value and using it as the power saving release signal, the main device is the power outage telephone. Is provided with a canceling signal detecting means in the communication path connecting, and the canceling signal detecting means includes a current value detector, whereby the power saving canceling signal can be detected from the current value flowing through the speaking path.

  A power saving method for a telephone device and a telephone device with a power saving function according to the present invention are provided with at least one power outage telephone connected to an extension line by directly connecting a communication path to an office line, while being connected to an extension line. The power saving setting dial number is stored in advance, and when the dial number is transmitted from the extension telephone, a predetermined power saving setting is executed to connect the power failure telephone directly to the office line. On the other hand, when a power saving cancel dial number or a power saving cancel signal stored in advance in the main device is transmitted from the power failure telephone, for example, the main device receives the dial number or the power saving cancel signal and performs a predetermined power saving setting cancel process. Running. Therefore, since the power saving setting can be performed from any extension telephone without adding a function or configuration to the telephone as in the above-mentioned Patent Document 2, the setting is simple and easy without increasing the cost. In addition, because the power outage telephone is equipped with the maximum number of office lines, there is no inconvenience for the user by deploying it at an appropriate location, and the power saving setting is canceled with a simple and easy operation. be able to.

  In the present invention, a telephone device that accommodates a plurality of office lines and a plurality of extensions, such as a private branch exchange, a button telephone device, etc., uses a power outage telephone to reduce power saving settings and cancel the settings. The object is to suppress the rise and to be realized easily and easily by the user. A plurality of embodiments that achieve this object will be described below with reference to the drawings.

  In the drawings, only parts according to the present invention are shown, and some components essential to the functions of the apparatus and the circuit are omitted. In the following description, a button telephone apparatus is exemplified as a telephone apparatus with a power saving function, and two main lines, a plurality of button telephones, and two power outage telephones are accommodated and connected to one main apparatus. However, as long as the above functions are satisfied, the circuit configuration is free, and the following description does not limit the present invention. For example, this main unit corresponds to a private branch exchange (PABX) itself, and a button telephone used regularly becomes a regular telephone and corresponds to a multifunction telephone.

  In the power saving setting, the power saving setting dial number is set and registered in advance in the main device, so that the main device can set the power saving setting when it receives a predetermined power saving setting dial number following the call from the extension telephone. is there. However, the cancellation of the setting requires a new technology because a power failure telephone is used.

  Therefore, in the following embodiment, an embodiment based on the configuration for canceling the power saving setting, which is a feature of the present invention, will be described. A telephone with a power failure function similar to that disclosed in Patent Document 3 can be used as the power failure telephone.

  A first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a functional block diagram showing an embodiment of a button telephone device with a power saving function according to the present invention. As shown in the figure, in the key telephone apparatus, the main apparatus 10 accommodates and connects two office lines, a plurality of key telephones 20-N, and two power outage telephones 20-F. The main apparatus 10 includes a local line IF (interface) 11, a SW (switch) 12, an extension IF 13, a control unit 14, a storage unit 15, a power supply control unit 16, and a power supply unit 17.

  The office line IF (interface) 11 is directly connected to the telephone station subscriber circuit on the one hand, and connected to the SW 12 on the other hand to be controlled by the control unit 14 to notify the outgoing call by an off-hook signal while receiving by the calling signal. Receive call notification. The SW 12 connects the office line IF 11 on the one hand and the extension IF 13 on the other hand, receives control of the control unit 14, and selects and switches and connects between the office line IF 11 and the extension IF 13 and between the extension IFs 13. The extension IF 13 connects the SW 12 on the one hand to the regular key telephone 20-N and the power outage telephone 20-F on the other hand, and normally connects the communication path and control line of the telephone 20 to the control unit 14. Is notified to the control unit 14 and the incoming call is notified from the control unit 14 to the telephone.

  The control unit 14 is connected to the components of the main device 10 and controls the functional operation. In the normal operation, the control unit 14 connects the call path of the calling telephone to the dial sound source when an off-hook call of the key telephone 20-N is received via the extension IF 13, so that the destination from the calling telephone is connected. Receive a dialed number. The control unit 14 connects the calling telephone to the destination line based on the received dial number. For the power saving setting and the cancellation of the setting, a unique dial number is assigned to each of them and the control unit 14 controls the processing. Therefore, the power saving setting can be performed when the dial number for power saving setting is received. Details thereof will be described later with reference to FIGS.

  The storage unit 15 stores various data and information, and the areas related to the present invention include a power saving setting number storage area for setting power saving and a power saving cancellation number storage area for releasing the setting, respectively. Are previously stored by the user. The power supply control unit 16 monitors the commercial power supply and is controlled by the control unit 14 to switch and control the power supply unit 17 during normal operation and during a power failure as well as during power saving. The power supply unit 17 receives AC (alternating current) commercial power, and supplies DC (direct current) power to each component of the main device 10 while charging an auxiliary power source such as a battery. In the event of a power failure or power saving, the control unit 14 is notified, and the DC power is supplied only to the portion where the AC power reception is disconnected and the operation of the minimum function is possible only with the auxiliary power supply.

  For example, in the event of a power failure, neither power saving setting nor cancellation of the setting is necessary, so auxiliary power is not required except for a necessary display. In the case of the power saving setting, for example, only the related circuit of the control unit 15, the power supply control unit 16, and the power supply unit 17 for receiving the power saving cancellation signal transmitted from the power failure telephone 20-F and supplying the commercial power supply is supported. It suffices if power is supplied.

  In the state of power failure or power saving, the control unit 14 controls the SW 12 so that the communication path of the power failure telephone 20-F passes through the extension lines IF13, SW12, the office line IF11, and the office line to the line circuit of the office telephone exchange. Connect directly. In this state, one of the key telephones 20-N cannot be used and cannot make or receive calls. On the other hand, the power failure telephone 20-F receives the “−48V” power supply of the line circuit, and can directly make a call to the office line and receive a call from the office line. In the case of a power failure, when the power is restored, the key telephone device is restored to a normal state. In the case of the power saving state, in this embodiment, since the power saving cancellation signal is a dial number, the control unit 14 monitors the call path of the power failure telephone 20-F by drawing it from the extension IF 13, and monitors the dial transmission following the outgoing call. ing. Accordingly, the control unit 14 receives power from the auxiliary power source for dial reception from the power failure telephone 20-F and power saving cancellation processing.

  Next, with reference to FIG. 2 together with FIG. 1, the details related to the setting and cancellation of power saving will be described. Normally, as shown in the figure, the telephone 20 has a dial number sending means 21, the extension IF 13 has an extension IF circuit 22, and the control unit 14 has a dial number reception storage means 23. For the present invention, the control unit 14 is a power saving setting number matching unit 24 and a power saving cancellation number matching unit 25, the storage unit 15 is a power saving setting number storage unit 26 and a power saving cancellation number storage unit 27, and the power control unit 16 is a power saving setting. Means 28 and power saving setting release means 29 are provided. The power supply unit 17 includes a power supply switching unit 30 and switches the power supply to the apparatus of AC power reception and auxiliary power supply to, for example, normal use supply, power failure supply, or power saving supply.

  The dial number sending means 21 is, for example, a dial pad, and after a call is made from the telephone circuit of the telephone 20 by an off-hook operation by a user, for example, a dial number by a DP signal is sent to the extension IF circuit 22. The extension IF circuit 22 monitors the communication path of the telephone 20 and notifies the dial number reception storage means 23 of the control unit 14 that a call has been detected by an off-hook signal from the telephone. The control unit 14 can receive the dial number by the dial number reception storage means 23 after receiving the call notification from the extension IF circuit 22.

  The dial number reception storage means 23 is provided corresponding to the extension, and temporarily stores the received dial number when receiving the dial number transmitted from the telephone 20 by the monitor. In this case, when the time interval of the dial number to be received exceeds a predetermined value, the storage number of the dial number reception storage means 23 is cleared and waiting for reception again. Therefore, the dial number reception storage means 23 may be included in the extension IF circuit 22.

  When the dial number reception storage unit 23 is used for the power saving setting, the power saving setting number collating unit 24 includes the power saving setting number stored in the power saving setting number storage unit 26 in advance, for example, the number “9999” and the dial number receiving storage unit 23. Is compared with the dial number received and stored, and when they match, a power saving setting signal is sent to the power saving setting means 28.

  When the dial number reception storage means 23 is used for power saving cancellation, the power saving cancellation number verification means 25 is connected to the dial number reception storage means 23 corresponding to the power failure telephone 20-F in the present invention. The power saving cancellation number stored in advance in the means 27, for example, the number “9911”, is compared with the dial number received and stored in the dial number reception storage means 23, and when they match, the power saving cancellation signal is sent to the power saving setting cancellation means. 29.

  Although the illustrated power saving setting number matching means 24 and power saving cancellation number matching means 25 are provided separately, in this embodiment, they may be integrated as one dial number matching means. In this case, the dial number received from the extension IF circuit 22 is collated with the numbers stored in the power saving setting number storage means 26 and the power saving cancellation number storage means 27 to determine the generated signal.

  The power saving setting number storage means 26 stores the power saving setting number in advance as a dial number. The power saving release number storage means 27 stores the power saving release number in advance as a dial number. When the dial number reception storage unit 23 is provided independently for the telephone 20, the power saving setting number and the power saving cancellation number can be set to the same number.

  When the power saving setting means 28 receives the power saving cancellation signal from the power saving cancellation number collating means 25, the power saving setting means 28 drives the power supply switching means 30 to cut off the AC power reception and supplies the auxiliary power source to a necessary part at the time of predetermined power saving. When the power saving setting canceling means 29 receives the power saving setting signal from the power saving setting number collating means 24, the power saving setting canceling means 29 drives the power supply switching means 30 to restore AC power reception and supplies it to all necessary parts. The power supply switching means 30 receives supply of commercial power via AC power reception, for example, charges an auxiliary power supply of a battery and supplies predetermined power to all necessary parts. The power supply switching unit 30 cuts off AC power reception when receiving a power saving setting command from the power saving setting unit 28 and supplies auxiliary power to a predetermined power saving supply site, while canceling the power saving setting from the power saving setting canceling unit 29. When the command is received, AC power reception is started and predetermined power is supplied to all necessary parts. The power supply switching means 30 monitors the commercial power received from the AC power reception, and supplies the auxiliary power to a predetermined power failure supply site when the commercial power is cut off due to a power failure.

  Next, the main operation procedure of the control unit 14 will be described with reference to FIGS.

  When the outgoing call is detected (YES in step S1), the control unit 14 receives and stores the subsequent dial number in the dial number reception storage means 23. The power saving setting number collating means 24 collates the power saving setting number stored in advance in the power saving setting number storage means 26, for example, the number “9999” with the dial number received and stored in the dial number receiving storage means 23 (step S2 )

  In the normal state where power saving is not set (NO in step S3), the control unit 14 generates a power saving setting signal when the power saving setting number matching unit 24 confirms the matching (YES in step S4) (step S5). ) In the control unit 14, the SW 12 is controlled and the power failure telephone 20-F is fixedly connected to a predetermined office line (step S6) in the same manner as in the conventional power failure state. At this time, if there is a key telephone 20-N during a call (YES in step S7), the call state is continued until the end of the call without being disconnected. When a telephone call is being made on the office line, when the procedure S7 is “NO”, all the key telephones 20-N have finished talking and the power failure telephone 20-F has been connected to the office line, the power saving setting of the control unit 14 The number verification means 24 sends a power saving setting signal to the power saving setting means 28 (step S8). Since the power saving setting means 28 instructs the power supply switching means 30 to set power saving, the power supply switching means 30 cuts off AC power reception (step S9) and is set to supply during power supply for supplying auxiliary power only to a predetermined power saving circuit. To do.

  On the other hand, when the procedure S3 is “YES” and the power saving setting is being performed, the power saving cancellation number matching unit 25 generates a power saving cancellation signal when confirming the matching match (YES in step S11), and sends it to the power saving setting cancellation unit 29. Sending out (procedure S12). Since the power saving setting cancellation means 29 instructs the power saving switching means 30 to cancel the power saving setting, the power switching means 30 drives the AC power reception and sets the commercial power supply to all necessary parts (step S13). To do.

  On the other hand, when the procedure S4 or the procedure S11 is “NO” and the collation does not match, the power saving setting number collating unit 24 or the power saving cancellation number collating unit 25 notifies the dial number receiving storage unit 23 of the stored dial number. Discard (step S10) and initialize.

  As described above, since the configuration utilizing the power failure telephone is adopted, the conventional configuration includes the storage of the power saving setting number and the power saving cancellation number, the dial number monitor in the extension IF, and the comparison between this number and the received dial number. Only the minimum configuration of adding the power switching part is added, and power saving setting and cancellation are realized at low cost. Further, in the case of setting power saving by collation coincidence, it can be set by dialing out any key telephone by the user, and the power call telephone can be directly connected to the office line to make outgoing and incoming calls. Further, in the case of canceling power saving, the canceling can be executed from the power failure telephones having the number of office lines, so that the user's operation is easy and easy.

  In the present embodiment, it has been described that the power saving setting is also based on the dial number monitor at the extension IF. However, as described above, the monitor of the extension IF circuit corresponding to the regular button telephone apparatus and the dial number reception storage means are deleted. In addition, since it is only necessary to add a configuration corresponding to a power failure telephone set, the configuration can be further simplified. Further, the power failure telephone may have a common telephone function as a power saving function telephone.

  A functional configuration different from the above-described embodiment of power saving setting and power saving cancellation according to the second embodiment of the present invention will be described with reference to FIGS. 4 and 5 together. The power failure telephone of the present embodiment can be used as the above-described regular telephone with a power failure function or a regular telephone with a power saving function.

  In an embodiment according to the present embodiment, a configuration is shown in which a PDT (pulse signal detector) 19-AB that easily detects a dial number from the communication path of the power failure telephone 20-AB in a power saving state is inserted and arranged. ing. That is, comparing FIG. 4 with FIG. 1 described above, the difference is that the main apparatus 10-AB has a PDT 19-AB inserted on the communication path of the power failure telephone 20-AB. The PDT 19-AB is configured so as not to adversely affect the operation functions of the telephone and the office switch even if it is inserted into the speech path. Therefore, although PDT19-AB is added, the configuration of the extension IF is not changed compared to the conventional one.

  The PDT 19-AB is inserted between the SW 12 and the extension IF 13-AB in the drawing. However, the PDT 19-AB may be arranged inside the extension IF or may be further included in the extension IF circuit. With such a configuration, when the power failure telephone 20-AB is commonly used, power saving can be set by a dial number following the call.

  The difference between FIG. 5 and FIG. 2 is that in the power failure telephone 20-AB, only the name of the dial number sending means 31 is changed, the dial pulse detecting means 32 of the PDT 19 is replaced with the extension IF circuit 22 of the extension IF 13, and The dial number identification storage means 33 is provided in place of the dial number reception storage means 23 in the control unit 14. That is, the dial pulse detection means 32 only detects a dial pulse, and the dial number identification storage means 33 identifies the dial number from the detected pulse. The other conditions are the same as in the above embodiment, and the description thereof is omitted. The details of the dial number transmission means 31, the dial pulse detection means 32, and the dial number identification storage means 33 will be described below with respect to the DP signal and the DTMF signal according to two embodiments.

  With this configuration, the power-saving setting dial number does not have to be dial transmission following the call. Therefore, power saving setting can be executed if it is connected to the office line or extension, for example, in a call state.

  A third embodiment of the present invention will be described with reference to FIGS. FIG. 6 shows a specific circuit configuration when the dial pulse in FIG. 5 is a DP (DC intermittent) signal.

  In the present embodiment, the dial number sending means 21-A of the power failure telephone 20-AB is connected to a DC power source via a speech path, and sends out a DP signal by, for example, 20 PPS (Pulse Per Second) DC interruption as a dial code. is doing. The dial pulse detection means 32-A of the PDT 19-AB includes a photocoupler and a current interruption detector. The photocoupler has a light emitting diode inserted into the speech path and a transistor for detecting light emission, and the current interrupt detector receives the intermittent state of the current on the speech path from the transistor as a dial code in the dial number identification storage means 33-A. Send it out. There is no functional problem that the photocoupler gives to the communication path. The dial number identification storage means 33-A counts 20PPS pulses to identify the number, and identifies and stores the dial number. Subsequent operation functions are the same as those in the above embodiment, and a description thereof will be omitted.

  A fourth embodiment of the present invention will be described with reference to FIGS. FIG. 7 shows a specific circuit configuration when the dial pulse in FIG. 5 is a DTMF (dial sound multi-frequency) signal.

  In the present embodiment, the dial number sending means 31-B of the power failure telephone 20-AB is connected to a DC power source via a speech path, and a DTMF (Dial Tone Multi-Frequency) signal by PB (push button) is used as a dial code. Is sent out. The dial pulse detection means 32-B of the PDT 19-AB includes an MF transformer and a DTMF signal detector. The MF transformer is inserted into the speech path and sends a multi-frequency signal on the speech path to the DTMF signal detector. The DTMF signal detector detects the DTMF signal and sends it as a dial code to the dial number identification storage means 33-B. There is no functional problem that the MF transformer gives to the communication path. The dial number identification storage means 33-B identifies the dial number from the DTMF signal and stores it. Subsequent operation functions are the same as those in the above embodiment, and a description thereof will be omitted.

  A fifth embodiment of the present invention will be described with reference to FIGS. In this embodiment, the power saving setting signal is canceled by sending a power saving cancellation signal from the power failure telephone 20-C. The power saving setting may be any of the methods described above. The difference between FIG. 8 and FIG. 5 is that a cancel signal sending means 34 is added to the power failure telephone 20-C, and a cancel signal detecting means 35 and a control unit 14- are added to the PDT 19-C corresponding to the cancel signal sending means 34. C includes a power saving cancellation signal reception confirmation unit 36, and a storage unit 15-C includes a setting cancellation reference value storage unit 37.

  As shown in FIG. 9, the release signal sending means 34 shorts the communication line by a series circuit of a non-locking power saving release button and a resistor, for example. The communication path of the power failure telephone 20-C receives “−48V” from the telephone exchange through the office line in a power saving state, and is off-hook (not shown) when making a call. Close the call path. On the other hand, when the button of the release signal sending means 34 is operated, resistance is added to the speech path, so that the current value is smaller than in the case of calling. The release signal detection means 35 detects this change in current value.

  The release signal detection means 35 detects a change in current with the coil of the current detector, and sends a detection signal based on the voltage value to the power saving release signal reception confirmation means 36 via the voltage detector. The power saving cancellation signal reception confirmation unit 36 compares the received detection signal with a reference value stored in advance in the setting cancellation reference value storage unit 37, and generates a setting cancellation signal when they match to generate a power saving setting of the power control unit 16. Output to the release means 29. Since the subsequent operations are the same as those in the above embodiment, the description thereof is omitted.

  Next, the operation procedure will be described with reference to FIG. 10 and FIGS.

  First, in the power saving setting operation procedure, as in the above-described embodiment, the main device detects a call from a not-shown key telephone (YES in step S21), receives the dial, temporarily stores it, and saves the power saving setting number matching means 24. In step S22, the power saving setting number is collated. When the collation coincides, the main device generates a power saving setting signal (step S23) and starts the power saving setting process, but the subsequent procedure is the same as that in the above embodiment, and the description thereof is omitted.

  In the power saving setting canceling operation procedure, the user operates the power saving canceling button in the canceling signal sending means 34 of the power failure telephone set, and the speech path is closed via the resistor. In the main device, the release signal detection means 35 of the PDT 19-C detects a change in current generated from the coil of the current value detector inserted in the speech path with a magnetic sensor, converts the voltage into a detection signal, and controls it. Output to section 14-C.

  In the control unit 14-C, when the power saving cancellation signal reception confirmation means 36 receives the detection signal (step S31), it confirms that the power saving is being set (YES in step S32), and stores the detection signal in the storage unit 15 The reference value stored in advance in the -C setting cancellation reference value storage means 37 is checked. If they match, the power saving cancellation signal reception confirmation unit 36 generates a power saving cancellation signal and sends it to the power saving setting unit 28 of the power supply control unit 16 (step S33). The power saving setting means 28 receives the power saving cancellation signal and instructs the power supply switching means 30 to set the normal-time supply for starting the commercial power supply (procedure S34).

  As described above, in this embodiment, when canceling the power saving setting from the power failure telephone, a signal different from the call is generated on the communication path and notified to the main unit, so that the exchange on the station side performs an extra operation. There is an advantage that there is nothing.

  A sixth embodiment of the present invention will be described with reference to FIG. In this embodiment, the power saving setting by the dial pulse shown in FIG. 5 and the setting cancellation by the cancellation signal shown in FIG. 8 are combined. Therefore, it is applicable to a telephone with a power failure function.

  Thus, the key telephone apparatus can be configured by combining the above-described embodiments.

  A seventh embodiment of the present invention will be described with reference to FIG. In this embodiment, the power supply unit 17A includes an AC power supply terminal 41 for supplying commercial power from the AC power reception to the external device 40 via the power supply switching unit 30A. When receiving the power saving setting signal from the power control unit, the power switching means 30A disconnects the AC power reception and also disconnects the commercial power supply circuit to the AC power supply terminal 41. Therefore, not only power saving for the external device 40 is performed, but also a leakage test on the commercial power source side for the button telephone device is made reliable and easy. The external device 40 connected to the AC power supply terminal 41 includes, for example, a modem, an ADSL (Asymmetric Digital Subscriber Line) device, etc. connected to the button telephone device.

  The present invention uses a power failure telephone directly connected to a central office switch in the event of a power outage, as well as during a power failure during power saving, thereby suppressing an increase in equipment costs and easily canceling the power saving setting from the power failure telephone. Therefore, the present invention can be effectively applied to the use of telephone exchange in which a plurality of office lines and a plurality of extensions are accommodated to save power of the main apparatus.

It is the figure which showed one Embodiment of the button telephone apparatus with a power saving function by this invention with the block. Example 1 It is the figure which showed one Embodiment of the partial detail in FIG. 1 with the functional block. Example 1 It is the figure which showed one Embodiment of the main operation | movement procedure in FIG.1 and FIG.2 with the flowchart. Example 1 It is the figure which showed one Embodiment different from FIG. 1 of the button telephone apparatus with a power saving function by this invention with a block. (Example 2) It is the figure which showed one Embodiment of the partial detail in FIG. 4 with the functional block. (Example 2) It is the figure which showed one Embodiment by the DP signal of the partial detail in FIG.4 and FIG.5 with the functional block. (Example 3) It is the figure which showed one Embodiment by the DTMF signal of the partial detail in FIG.4 and FIG.5 with the functional block. Example 4 It is the figure which showed one Embodiment of the partial detail in the telephone apparatus with a power saving function of this invention with the block. (Example 5) It is the figure which showed one Embodiment by the cancellation signal of the partial detail in FIG. 8 with the functional block. (Example 5) It is the figure which showed one Embodiment of the main operation | movement procedure in FIG.8 and FIG.9 with the flowchart. (Example 5) It is the figure which showed one Embodiment of the partial detail in the button telephone apparatus with a power saving function different from the said embodiment with the block. (Example 6) It is the figure which showed one Embodiment of the power supply part in the button telephone apparatus with a power saving function different from the said embodiment with the block. (Example 7) It is the figure which showed an example of the conventional button telephone apparatus with a power saving function with a block. It is the figure which showed the example different from FIG. 13 of the button telephone apparatus with a conventional power saving function with the block.

Explanation of symbols

10, 10-AB Main unit 11 Station line IF (interface)
12 SW (switch)
13, 13-AB extension IF
14, 14-AB, 14-C, 14-D control unit 15, 15-C, 15-D storage unit 16 power supply control unit 17, 17A power supply unit 19-AB, 19-C, 19-D PDT (pulse signal Detection unit)
20-AB, 20-C, 20-D, 20-F Power outage telephone 20-N Button telephone 21, 31, 31-A, 31-B Dial number sending means 22 Extension IF circuit 23 Dial number reception storage means 24 Power saving Setting number checking means 25 Power saving release number checking means 26 Power saving setting number storage means 27 Power saving release number storage means 28 Power saving setting means 29 Power saving setting releasing means 30, 30A Power switching means 32, 32-A, 32-B Dial pulse detecting means 33, 33-A, 33-B Dial number identification storage means 34 Release signal transmission means 35 Release signal detection means 36 Power saving release signal reception confirmation means 37 Setting release reference value storage means 40 External device 41 AC power supply terminal

Claims (11)

  In a power saving method for a telephone device that switches and connects a communication path between each of a plurality of office lines and a plurality of telephones, at least one power outage telephone is generally used for making and receiving calls by directly connecting the communication path to the office line. In addition to a regular telephone, it is connected to an extension, and when the telephone device is in a power saving state, supply of commercial power is started when a predetermined power saving cancellation signal is received from one of the power interruption telephones. Power saving method for telephone equipment.   2. The power saving method for a telephone device according to claim 1, wherein when the telephone device receives a predetermined power saving setting dial number from one of the regular telephones, the commercial power supply is cut to enter a power saving state. A power saving method for a telephone device.   The power saving method for a telephone device according to claim 1, wherein the power saving cancellation signal is a predetermined power saving cancellation dial number.   2. The power saving method for a telephone device according to claim 1, wherein the power saving cancellation signal is generated by a predetermined current / voltage change in a communication path directly connected to the office line.   In a telephone device with a power saving function that connects speech paths between a plurality of office lines and a plurality of telephones, it is connected to an extension in addition to a general telephone, and the call path is directly connected to the office line to make and receive calls. And a power failure telephone that can send a predetermined power saving release signal, and when in a power saving state, supply of commercial power when receiving the power saving release signal from one of the power failure telephones via the communication path. A telephone device with a power saving function, comprising: a main device that starts.   6. The telephone device with a power saving function according to claim 5, wherein the main device cuts off a commercial power source to enter a power saving state when receiving a predetermined power saving setting dial number from one of the regular telephones. A telephone device with a power saving function.   6. The telephone apparatus with a power saving function according to claim 5, wherein the predetermined power saving release signal transferred through the speech path is a predetermined power saving release dial number at the time of outgoing call. Telephone equipment.   6. The telephone device with a power saving function according to claim 5, wherein the main device includes a pulse signal detection unit in a communication path to which the power failure telephone is connected, and the pulse signal detection unit is a DP (direct current interrupted) transferred to the communication path. A telephone device with a power saving function, comprising a photocoupler for detecting a (pulse) signal.   6. The telephone device with a power saving function according to claim 5, wherein the main unit includes a pulse signal detection unit in a communication path to which the power failure telephone is connected, and the pulse signal detection unit is a DTMF (dial sound) transferred to the communication path. A telephone device with a power saving function, comprising an MF transformer for detecting a multi-frequency signal.   6. The telephone apparatus with power saving function according to claim 5, wherein the power failure telephone is a release signal sending means for changing the current / voltage of a speech path directly connected to a local line by a user operation by a predetermined value to be used as the power saving release signal. And the main apparatus includes a release signal detecting means in a communication path connecting the power failure telephone, and the release signal detecting means includes a current value detector for detecting a power saving release signal from a current value flowing through the communication path. A telephone device with a power-saving function. 6. The telephone device with a power saving function according to claim 5, wherein the main device is provided with an AC power supply terminal for supplying commercial power to an external device, and a predetermined power saving setting dial number is received from one of the regular telephones. A telephone device with a power saving function, comprising: means for cutting off a commercial power supply to be in a power saving state when receiving the power supply, and also disconnecting a commercial power supply circuit to the AC power supply terminal.

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