CN1077756C

CN1077756C - Communicating terminal with function of connecting extension

Info

Publication number: CN1077756C
Application number: CN95107693A
Authority: CN
Inventors: 山本真
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 1994-06-17
Filing date: 1995-06-15
Publication date: 2002-01-09
Anticipated expiration: 2015-06-15
Also published as: KR960003276A; JPH089132A; CN1122548A; JP2950151B2

Abstract

To attain facsimile reception without any special operation even when a receiver of a branch telephone set is hooked off through the ringing of a call bell in the facsimile equipment in which the branch telephone set is connected to a same telephone line. In the facsimile equipment F in which a branch telephone set 1 is connected to the same telephone line L, after the reception of a call signal from an external line and the hooked-off branch telephone set 1, the telephone line L is connected to the point of the facsimile equipment F. When a facsimile start signal (CNG signal) is detected, the facsimile communication procedure is started.

Description

Has the communication terminal that connects the extension telephone function

The present invention relates to communication terminal devices such as facsimile machine, relevant in more detail the improvement has the communication terminal that connects the extension telephone function.

On being equipped with, communication terminal connected under the situation of extension telephone, though realized that at communication terminal device the scene not being set also can converse, but when the facsimile signal one that outside line comes is come in, when call bell is rung, in case pick up the extension telephone receiver, telephone line just is pulled on the extension set, gets on and can not switch to communication terminal device.Therefore, be susceptible to the generation of this state of affairs, developed from the extension telephone of off-hook and sent dtmf signal, telephone line has been switched the mechanism that is connected on the communication terminal device to communication terminal device, but since this mechanism for can send dtmf signal, must operate the instruction of sending regulation by numerical key, therefore, not only troublesome poeration inconvenience, and if operator mistake, will cut off telephone line, fax be received be interrupted fully.

Purpose of the present invention even provide a kind of extension telephone that has responded calling of switchboard by off-hook, also can be connected to the communication terminal that communicates on the telephone line to communication terminal device just at the problems referred to above.

For achieving the above object, the present invention takes following technical scheme: the invention provides a kind of facsimile machine device, possess the function of understanding with extension telephone, this extension set and facsimile machine device also are connected on the telephone line, are provided with: detect the call signal testing agency from the calling of switchboard signal; Extension/off hook state testing agency that the on-hook and the off-hook of above-mentioned extension telephone detected; The signal procedure initiating signal testing agency that signal procedure initiating signal from communication counterpart office is detected; And controlling organization, after above-mentioned call signal testing agency detects call signal from switch, in case above-mentioned extension/off-hook detection mechanism detects above-mentioned extension telephone and is in off hook state, just above-mentioned facsimile machine device is connected on the telephone line, then, when above-mentioned signal procedure initiating signal testing agency detects the signal procedure initiating signal of the other side office of delivering letters certainly, just begin signal procedure.

Described controlling organization is after above-mentioned call signal testing agency detects call signal from switch, in case above-mentioned extension/off hook state testing agency detects above-mentioned extension telephone and is in off hook state, just the facsimile machine device of last note is connected on the telephone line, then, in the time of defined, when above-mentioned signal procedure initiating signal testing agency does not detect signal procedure initiating signal from the other side office of delivering letters, just control above-mentioned facsimile machine device and disconnect from above-mentioned telephone line.

Described controlling organization is after the call signal that detects when above-mentioned call signal testing agency from switch, in case above-mentioned extension/pluck state detection mechanism detects above-mentioned extension telephone and is in off hook state, just above-mentioned facsimile machine device is connected on the telephone line, then, when above-mentioned extension/off hook state testing agency detects above-mentioned extension telephone when hanging up machine again, just begin signal procedure.

Described controlling organization is after above-mentioned call signal testing agency detects call signal from switch, in case above-mentioned extension/off hook state testing agency detects above-mentioned extension telephone and is in off hook state, just above-mentioned facsimile machine device is connected on the telephone line, then, when extension above-mentioned in the time at defined/off hook state testing agency does not detect above-mentioned extension telephone on-hook, just control above-mentioned facsimile machine device and disconnect from above-mentioned telephone line.

The present invention for the call signal from switch, makes it be in off hook state in case pick up the extension telephone receiver according to the communication terminal of above-mentioned constitutive characteristic, will couple together telephone line and communication terminal device.Subsequently, in case the other side office of delivering letters sends signal procedure initiating signal (CNG signal) here, this communication terminal then can detect the CNG signal, and begins normal signal procedure.And,, also can begin normal communication as long as extension telephone is in hook state even without the signal procedure initiating signal (CNG signal) that detects from the other side office of delivering letters.

Therefore, for calling from switch, when thinking and after picking up the receiver of extension telephone from the calling of telephone set, distinguish it is that fax waits signal of communication, make it return to hook state even relay down the extension telephone receiver, also can exchange control with the picture unit of the side of delivering letters and accept fax.In addition, after picking up the extension telephone receiver telephone line and communication terminal device coupled together, when in the setting aside some time of defined, failing to receive signal procedure initiating signal (CNG signal etc.), perhaps extension telephone does not return to original hook state as yet, just cut off being connected between telephone line and the communication terminal device, can proceed the conversation of extension telephone.

The present invention has following effect:

To understand as above explanation, utilize communication terminal of the present invention, owing to can the samely with primary and secondary telephone set and so on carry out automatically with a pair genus telephone set to the switching of the telephone line of communication terminal device from extension set, therefore, this has just improved the operability of this communication terminal greatly.

In addition, since with the reception of off-hook, on-hook action and the program singal of extension set mutually interlock, and carry out to the connection of communication terminal device telephone line and the beginning of signal procedure, because of the interruption of the caused telephone line of misoperation and the transmission again of data have all significantly reduced, this just can reduce the cost of communication cost etc.

Followingly embodiments of the invention are specifically described with reference to accompanying drawing:

Fig. 1 represents the block diagram that of the present invention one routine communication terminal hardware constitutes.

Fig. 2 represents the flow chart of of the present invention one routine communication terminal groundwork program.

Below, with reference to description of drawings one embodiment of the present of invention.

Fig. 1 is the hardware formation block diagram of expression about the picture unit F of communication terminal one example of the present invention.

This picture unit F is made of the extension telephone 1 and the fax body Fa that are connected on the same telephone line L, and wherein extension telephone 1 is equipped with speaking circuit 1a, earpiece (electrophone) 1b and for detecting the extension key switch 1c that receiver picks up and the 1d of testing agency of detection electrophone 1b off-hook.

On the other hand, fax body Fa is by the signal processing part 4 of paying a genus telephone set 2, facsimile control part 3, being made of CPU etc. and is connected each circuit that the back on this signal processing part 4 will illustrate and is constituted.

Here, facsimile control part 3 disposes the modulator-demodulator 3a of view data communication usefulness, the circuit control part 3b that the telephone line L of this modulator-demodulator 3a one side and extension set 1-side is connected for control, the single audio signal testing circuit 3c and the single audio signal of mutual transmission (information exchange) that preferentially transmit the communication protocol signal of reception for the carries out image data-signal produce circuit 3d etc.

At signal processing part 4, except that with above-mentioned facsimile control part 3 is connected, also connecting the display part 8 that constitutes for extension key signals announcing circuit 5 that notice extension telephone 1 extensions/off hook state detects, operating portion 6, timing circuit 7, by LCD etc., by ROM and/memory portion 9, the image of RAM formation read portion 10 and lettering efferent 11.

In addition, in order to carry out the facsimile program, signal processing part will be controlled above-mentioned each relative section, and this picture unit F is sent communication call from outside other picture unit, and after being sent from the 16Hz call signal (ring single-tone) that the circuit switch (not shown) is sent here, then control by following program.

That is to say, detect call signal at extension set 1 from switch, because call bell is rung, the operator picks up under the situation of receiver of extension set 1, extension key switch 1c and the 1d of off-hook detection mechanism just detect extension telephone 1 and are in off hook state, and this testing result is notified to signal processing part 4 by hanging key signals announcing circuit 5.

At signal processing part 4, at the connection of the indicated telephone line of circuit control part 3b, Fa is connected on the telephone line L the fax body.

Then, if send the CNG signal here, then detect, and be notified to signal processing part 4 by single audio signal testing circuit 3c from the other side office of delivering letters.

The hook state of extension set 1 is the same during with off-hook, by the 1d of off hook state testing agency, hang key signals announcing circuit 5 and be notified to signal processing part 4.

Timing starting after telephone line L connects or stop to be undertaken by signal processing part 4 is overtimely then notified by 7 pairs of signal processing parts 4 of timing circuit.

Also have, if detect the hook state of CNG signal or extension set 1, signal processing part 4 just makes single audio signal produce circuit 3d work, and makes the facsimile program begin to carry out.

In addition, since overtime, cut off dependence circuit control part 3b to fax body Fa from telephone line L and carry out.

Give explanation with regard to the groundwork program of picture unit F of the present invention below.

The step 100 of Fig. 2-the 112nd is represented the flow chart of its groundwork summary program.

During the number of times ring that ring up sets by fax body Fa, when picking up the receiver 1b of extension set 1 (refer step 100-103), fax body Fa be connected with circuit (step 109).Afterwards, when detecting, just enter fax program (with reference to 110-111 steps) automatically from the CNG signal of the other side fax or extension set 1 on-hook.Here, surpassed official hour later on,, also will cut off (with reference to 112 steps) to fax body Fa from telephone line L as long as fail to detect the hook state of CNG received signal or extension set even pick up the receiver of extension set 1.

The same when being connected to picture unit with setting ring up number of times and circuit, the signal procedure of fax detect receive CNG signal or extension set 1 on-hook this rise constantly, send CED signal or DIS signal from fax body Fa for carrying out facsimile.

On the contrary, when sending suitable communication protocol signal here from the other side, though can receive faxes, when not sending suitable communication protocol signal here, then garble can take place, at this moment also will cut off fax body Fa and circuit L (with reference to 104-108 steps).If use this picture unit, even the user that above-mentioned functions of the present invention is not understood as yet holds the receiver of extension set, make it be in talking state always, because the automatic and telephone line cut-out through regular hour communication terminal device meeting, thereby can make the unlikely confusion of operation.

Claims

1, a kind of facsimile machine device possesses the function that is connected with extension telephone, and this extension set and facsimile machine device also are connected on the telephone line, it is characterized in that, are provided with: detect the call signal testing agency from the calling of switchboard signal; Extension/off hook state testing agency that the on-hook and the off-hook of above-mentioned extension telephone detected; The signal procedure initiating signal testing agency that signal procedure initiating signal from communication counterpart office is detected; And controlling organization, after above-mentioned call signal testing agency detects call signal from switch, in case above-mentioned extension/off-hook detection mechanism detects above-mentioned extension telephone and is in off hook state, just above-mentioned facsimile machine device is connected on the telephone line, then, when above-mentioned signal procedure initiating signal testing agency detects the signal procedure initiating signal of the other side office of delivering letters certainly, just begin signal procedure.

2, facsimile machine device with connection extension telephone function according to claim 1, it is characterized in that: described controlling organization is after above-mentioned call signal testing agency detects call signal from switch, in case above-mentioned extension/off hook state testing agency detects above-mentioned extension telephone and is in off hook state, just the facsimile machine device of last note is connected on the telephone line, then, in the time of defined, when above-mentioned signal procedure initiating signal testing agency does not detect signal procedure initiating signal from the other side office of delivering letters, just control above-mentioned facsimile machine device and disconnect from above-mentioned telephone line.

3, the facsimile machine device with connection extension telephone function according to claim 1, it is characterized in that: described controlling organization is after the call signal that detects when above-mentioned call signal testing agency from switch, in case above-mentioned extension/pluck state detection mechanism detects above-mentioned extension telephone and is in off hook state, just above-mentioned facsimile machine device is connected on the telephone line, then, when above-mentioned extension/off hook state testing agency detects above-mentioned extension telephone when hanging up machine again, just begin signal procedure.

4, facsimile machine device with connection extension telephone function according to claim 1, it is characterized in that: described controlling organization is after above-mentioned call signal testing agency detects call signal from switch, in case above-mentioned extension/off hook state testing agency detects above-mentioned extension telephone and is in off hook state, just above-mentioned facsimile machine device is connected on the telephone line, then, when extension above-mentioned in the time at defined/off hook state testing agency does not detect above-mentioned extension telephone on-hook, just control above-mentioned facsimile machine device and disconnect from above-mentioned telephone line.