JPH04122165A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To back up a memory provided to an external telephone set even when a multi-function telephone set is connected as the external telephone set by connecting the external telephone set to a minute power supply means, from which a minute power supply is supplied to the external telephone set. CONSTITUTION:An external telephone set 26 is connected to a telephone line L in the standby state to supply a minute current from the telephone line L to the external telephone set 26. In the case of the facsimile communication, the external telephone set 26 is connected to a minute power supply section 25, from which a minute current is supplied to the external telephone set 26. Thus, it is always possible to supply a minute current to the external telephone set 26, and even when a multi-function telephone set is employed as the external telephone set 26, a volatile memory for data storage built in the multi-function telephone set is backed up. Thus, the erasure of data such as an abbreviation number or a redial number stored in the data storage volatile memory of the external telephone set 26 during long time facsimile communication is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile device, and particularly to a facsimile device to which an external telephone can be connected.

[Conventional technology]

As facsimile machines have become more widespread, they have become smaller and cheaper, and have come to be used in general households and small and medium-sized enterprises. In these types of households and small and medium-sized enterprises, there is a need for facsimile machines to share a single telephone line with a telephone without installing a new telephone line, and facsimile machines with built-in telephones have become popular. ing.

Therefore, the present applicant has first stored the telephone number entered from the telephone's numeric keypad in memory in correspondence with a predetermined abbreviated number, and has made it possible to make an automatic call by inputting the abbreviated number from the telephone's numeric keypad. We are proposing a facsimile machine that removes the numeric keypad from the device to make it smaller and cheaper (see Japanese Patent Application Laid-Open No. 2-42853).
.

[Problem to be solved by the invention]

However, since such conventional facsimile machines utilize a built-in telephone, there is a problem in that the telephone cannot be used at a location away from the facsimile machine.

Therefore, even in the past, facsimile machines that can be connected to an external telephone have appeared in order to enable the use of telephones in locations far from the facsimile machine. However, there is a desire to use such multifunctional telephones.

However, such multi-function telephones use volatile memory for storing abbreviated numbers, etc., and use minute currents supplied from the telephone line to store the memory. As shown in FIG. 4, when such a multi-function telephone 1 is connected to the facsimile machine 2 as a conventional external telephone, the facsimile machine 2 is switched to the external Since the telephone 1 is connected to the telephone line, it is possible to back-amplify the memory 4 of the external telephone 1, but during facsimile communication, the facsimile machine 2 connects the telephone line to the modem 5 side using the switch 3. Therefore, the external telephone 1 is disconnected from the telephone line and cannot back up the memory 4. As a result, when the facsimile communication is short, the content stored in the memory 4 is not erased, but when the facsimile communication time becomes long, the content stored in the memory 4 is erased, causing the problem that the multifunction telephone 1 no longer functions properly. there were.

In FIG. 4, 6 is a hook switch of the handset, and 7 is a resistor for backing up the memory even when on-hook.

[Purpose of the invention]

Therefore, the present invention provides a minute power supply means, connects a telephone line to an external telephone during standby, connects the telephone line to the main body of the facsimile apparatus during facsimile communication, and enables facsimile communication. By connecting the micro-power supply means to a micro-power supply means and supplying micro-power to the external telephone by the micro-power supply means, micro-power can be supplied to the external telephone even during facsimile communication, and the multi-function telephone can be connected as an external telephone. The purpose of this invention is to enable the memory installed in the external telephone to be backed up even when the external telephone is disconnected, so that the functions of the multifunction telephone connected as an external telephone can be fully demonstrated.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a facsimile machine that accommodates a telephone line and can be connected to an external telephone, comprising a micro power supply means for supplying a micro power supply, and a line switching means connected to the telephone line. , a power circuit switching means connected to the external telephone, and when on standby, the line switching means connects the telephone line to the power circuit switching means, and the power circuit switching means connects the external telephone to the line switching means. to connect the telephone line to the external telephone, and during facsimile communication, the line switching means connects the telephone line to the main body of the facsimile machine, and the power circuit switching means connects the external telephone to the micro power supply means. , is characterized in that a minute power supply is supplied to the external telephone by a minute power supply means.

Hereinafter, a detailed description will be given based on examples.

1 to 3 are diagrams showing an embodiment of a facsimile apparatus of the present invention.

FIG. 1 is a configuration diagram of the facsimile machine 1, which includes a network control section 11, a modem 12, a facsimile unit section 13, an I10 port 14, a RAM
(Random Access Memory) 15
, ROM (Re-ad ONLY Memory) 1
6 and CPU (Central Processing)
ng Unit) 17 etc.

The network control unit 11 includes switches 21 and 22, a relay 23, a line protection device 24, a micro power supply unit 25, and the like. A telephone line is connected to the switch 21, and the switch 21
The telephone line is switched between the line protection device 24 side (facsimile machine 10 main body side) and the switch 22 for connection.

The switching device 21 connects the telephone line L to the switching device 22 during standby, and connects the telephone line L to the line protection device 24 side, that is, the main body side of the facsimile machine 10 during facsimile communication. An external telephone 26 is connected to the switch 22, and the switch 22 connects the external telephone 8!26 to the switch 21.
and the micro power supply unit 25 for connection. Switch 22
When on standby, the external telephone 26 is connected to the switch 21 side, that is, to the telephone line side, and during facsimile communication, the external telephone 26 is connected to the micro power supply section 25. Also,
The network control unit 11 includes a paging signal detection unit (not shown),
A calling signal from the telephone line is detected and output to the CPU 17.

The micro power supply section (micro power supply means) 25 is, for example, a power supply device (not shown) of the facsimile machine 10, which has a micro voltage Vcc and supplies a micro current.

The relay 23 is for generating a dial pulse, and is turned on and off when a call is made, and sends a dial pulse to the telephone line, and is turned on during facsimile communication.
A telephone line is connected to the modem 12 via a line protection device 24.

The modem 12 modulates the transmitted signal and demodulates the received signal.

The facsimile unit 13 is a general term for all other units of the facsimile apparatus 10 such as a scanner, a plotter, and an encoding/decoding section, and the I10 port 14 controls various ports.

The RAM 15 stores control data for the facsimile device 10, and the ROM 16 stores a basic program for the facsimile device 10, a line switching processing program of the present invention, and the like.

The CPU 17 uses the program in the ROM 16 and the RAM 1.
Each part of the facsimile machine 10 is controlled based on the data in the facsimile machine 5, and the sequence as the facsimile machine 10 is executed, and the line switching process of the present invention is executed.

A multi-function telephone is connected as the external telephone 26, and the external telephone 26 has a volatile memory for storing various data such as abbreviated telephone numbers and dialed telephone numbers.

Next, the effect will be explained.

The present invention is characterized in that it is equipped with a minute power supply means, and even during facsimile communication, the line can be switched to supply minute power from the minute power supply means to the external telephone. This line switching process will be explained below.

When the facsimile machine 10 is on standby, the switching device 21 connects the telephone line to the switching device 22 side, and the switching device 22 connects the external telephone 26 to the switching device 21 side, as shown in FIG. Therefore, during standby, the external telephone 26 is connected to the telephone line, and a minute current is supplied to the external telephone 26 from the telephone line. As a result, even when a multi-function telephone is connected as the external telephone 26, the volatile memory for data storage provided in the external telephone 26 can be backed up.

In the standby state, as shown in FIG. 2, a document is set in the facsimile machine 10 (step S1), and after inputting necessary information such as the telephone number of the destination (destination), the start key is pressed. is input (step S2
．． 33), the CPU 17 drives the switch 21 to connect the telephone line from the switch 22 side to the line protection device 24 side (turns on), and drives the relay 23 to turn it on (
Step S4).

This connects the telephone line to the main body of the facsimile machine 10, making facsimile communication possible.

The CPU also drives the switch 22 to connect the external telephone 26.
is connected (turned on) from the switch 21 side to the micro power supply section 25 (step S5), and a micro current is supplied from the micro power supply section 25 to the external telephone 26. Therefore, even when transmitting a facsimile, a minute current is supplied to the external telephone 26 from the minute power supply section 25, and even when a multi-function telephone is connected as the external telephone 26, data stored in the external telephone 26 is Volatile memory for storage can be backed up. As a result, even when a multifunction phone is connected as the external phone 26, the data in the memory of the multifunction phone can be prevented from being erased, and the functions of the multifunction phone can be reliably and adequately maintained. It can be used for.

Thereafter, the facsimile transmission is performed, and when the facsimile transmission is completed (step S6), the CPU 17 drives the switching device 21 to switch the telephone line from the line protection device 24 side to the switching device 22 to connect (turn off, relay 23 and turns it off (step S7).
7 drives the switch 22 to switch from the micro power supply section 25 side to the switch 21 side to connect (off) the switch (step S8).
, the telephone line is connected to an external telephone 26 via a switch 21 and a switch 22. Therefore, even when the external telephone 26 is supplied with a minute current from the telephone line again and a multifunction telephone is connected as the external telephone 26, the volatile memory storing the data can be backed up.

On the other hand, when receiving a call, the facsimile machine 10 is in a standby state, and as shown in FIG.
The CPU 17 turns on the switch 21 to connect the telephone line from the switch 22 side to the line protection device 24 side, and drives the relay 23 to turn it on (step T2).

As a result, the telephone line is connected to the main body of the facsimile device IO, and facsimile reception becomes possible. Also, C.P.
Step T3 is to turn on the switch 22 and connect the external telephone 26 to the micro power supply section 25 from the switch 21 side.
), a minute current is supplied to the external telephone 26 from the minute power supply section 25 . Therefore, even when receiving a facsimile,
A minute current is supplied to the external telephone 26 from the minute power supply section 25, and even when a multi-function telephone is connected as the external telephone 26, the volatile memory for data storage provided in the external telephone 26 is backed up. can do. As a result, even when a multifunction phone is connected as the external phone 26, the data in the memory of the multifunction phone can be prevented from being erased, and the functions of the multifunction phone can be reliably and adequately maintained. It can be used for.

Thereafter, the facsimile reception is performed, and when the facsimile reception is completed (step T4), the CPU 17 turns off the switching device 21, switches the telephone line from the line protection device 24 side to the switching device 22, connects it, and drives the relay 23. to turn it off (step T5).

Further, the CPU 17 turns off the switch 22 and switches from the micro power supply section 25 side to the switch 21 side for connection (Step T6), and connects the telephone line to the external telephone 26 via the switch 21 and the switch 22. . Therefore, even when the external telephone 26 is supplied with a minute current from the telephone line again and a multifunction telephone is connected as the external telephone 26, the volatile memory storing the data can be backed up.

In this way, when the facsimile device 10 is on standby, the external telephone 26 can be connected to the telephone line and a minute current from the telephone line can be supplied to the external telephone 26, and during facsimile communication, the external telephone 26 can be connected to the external telephone 26. Micro power supply section 2
5 to supply a minute current from the minute power supply section 25 to the external telephone 26. Therefore, the facsimile device 10 can always supply a minute current to the external telephone 26, and even when a multi-function telephone is used as the external telephone 26, the Memory can be saved up.

As a result, data such as abbreviated numbers and dial numbers stored in the data storage volatile memory of the external telephone 26 can be prevented from being erased during long-term facsimile communications, and the external telephone 26 can be It is possible to reliably and fully utilize the functions of a connected multi-function telephone.

〔effect〕

According to the present invention, a minute power supply means is provided, and when on standby, the telephone line is connected to an external telephone, and during facsimile communication, the telephone line is connected to the main body of the facsimile machine to enable facsimile communication, and the external telephone can be connected to a minute power supply means, and the minute power supply means can supply minute power to the external telephone, so even during facsimile communication, minute power can be supplied to the external telephone, making it a versatile external telephone. The memory installed in the external phone can also be backed up when the phone is connected. As a result, the functions of the multifunction telephone connected as an external telephone can be fully utilized.

[Brief explanation of the drawing]

1 to 3 are diagrams showing an embodiment of a facsimile apparatus of the present invention, FIG. 1 is a configuration diagram of the facsimile apparatus, FIG. 2 is a flowchart showing line switching processing at the time of transmission, and FIG. FIG. 3 is a flowchart showing the line switching process at the time of reception. FIG. 4 is an explanatory diagram of line switching processing in a conventional facsimile machine. 10...Facsimile device, 11...Network control unit, 12...Modem, 13...Facsimile unit, 14...
...Ilo boat, 15...RAM, 16...ROM, 17...CPU, 21.22...Switcher, 23... - Relay 24...Line protection device, 25...Minute power supply unit, 26...External telephone, L...Telephone line. Agent: Patent attorney

Claims (1)

[Scope of Claims] A facsimile device that accommodates a telephone line and can be connected to an external telephone, comprising: micropower supply means for supplying micropower; line switching means connected to the telephone line; and a power circuit switching means connected to the power circuit switching means, wherein during standby, the line switching means connects the telephone line to the power circuit switching means side, and the power circuit switching means connects the external telephone to the line switching means, When a telephone line is connected to an external telephone, and during facsimile communication, the line switching means connects the telephone line to the main body of the facsimile machine, and the power circuit switching means connects the external telephone to the micro power supply means. A facsimile device characterized by supplying minute power to an external telephone.