JPS63269674A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To improve the operability of facsimile equipment, by causing the facsimile equipment to discriminate whether the facsimile equipment of an opposite station belongs to the company or is mini-fax(MF) equipment and to communicate with the opposite facsimile equipment in a relevant mode. CONSTITUTION:Facsimile equipment transmits calling signals CNG at the time of transmission and, when the facsimile equipment of an opposite station belongs to the company, the equipment has a means which detects the calling signals CNG and sends answer signals ANS. When the opposite station uses MF equipment, the equipment sends no answer signals ANS to the circuit because it does not have the above-mentioned means. Therefore, when presence/absence of the answer signals ANS is detected, whether the facsimile equipment of the opposite station belongs to the company or is MF equipment can be discriminated automatically. A communication button is depressed at the time of transmission, bit, since the reception is from the MF equipment when the calling signals CNG are not detected, phase signals PHS are detected, an MF mode receiving state can be set up immediately and it is not necessary to depress the communication button specially.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile device having multiple communication modes.

[Conventional technology]

The subject of the present invention is a facsimile machine used primarily in a system comprised of in-house equipment, but in order to further expand the system, it is also capable of communicating with Nippon Telegraph and Telephone Corporation's mini-fax machine. Conventionally, a device having a mini-fax or mini-fax mode (hereinafter abbreviated as MF mode) has not had a means for transmitting a mode identification signal to the other party to automatically identify the device. Note that the mini fax and MP mode devices are collectively referred to as the MF device.

[Problem that the invention seeks to solve]

As mentioned above, since the MF packing device does not have a mode identification signal, in the case of a called terminal of the MF packing device, when a line connection is made by dialing, it only sends out a called station identification signal. In addition, in the case of the MF packing device calling terminal, only the phase signal PH3 of 9 Hz period is sent out. therefore,
In order for a facsimile machine having an in-house mode and an MF mode to communicate with an MF device, it is necessary to know in advance that the other party has an MF device.

Furthermore, in MF mode communication, the same communication button is pressed both when sending and receiving, so it is necessary to identify sending and receiving based on the presence or absence of manuscript paper, or to distinguish between manuscript paper and recording. In devices that share paper, the operator manually sets whether to send or receive. As described above, the operator is often involved in the communication of the MF filling device, and the operation is complicated and malfunctions are likely to occur.

An object of the present invention is to provide a facsimile device that is compatible with both in-house mode and MF mode, so that communication can be performed with automatic mode identification regardless of whether the destination station is an MF packed device or the device of the present invention. An object of the present invention is to provide a facsimile device in which pressing operations are simplified.

[Means for solving problems]

The apparatus of the present invention has means for transmitting, as a transmission function, a unique calling signal having a different frequency from the phase signal of the mini-fax mode by pressing a communication button.

The reception function includes a means for transmitting a message in a mode corresponding to the in-house mode when a response signal described later from the other party's station to the calling signal is detected within a certain period of time, and the mini-fax mode when no response signal is detected. means for detecting the phase signal of the ringing signal/mini-fax mode; and when the ringing signal is detected, the in-house mode is switched on after sending a response signal, and when the ringing signal is not detected and the phase signal is detected; The mini-fax mode includes means for receiving a message in a mode corresponding to each mini-fax mode.

[Effect]

In the case of transmission, a calling signal is sent out, and if the other station is the device of the present invention (hereinafter referred to as the in-house device), the other station has means for detecting the calling signal and sending out a response signal, and the other station has an MF packing device. In this case, since it does not have the above means, no response signal is sent to the line. As a result, the device of the present invention can detect the presence or absence of a response signal and automatically identify whether the other station is its own device or an MF filling device. The communication button is pressed in the case of the above transmission, but in the case of reception, when a phase signal is detected instead of a ringing signal, it is possible to immediately enter the MF mode reception state because it is reception from the MF packing device etc. There is no special need to press a communication button.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. FIG. 2 is a circuit block diagram showing the telephone line 1i
11, telephone 2. A facsimile machine 10 is connected. The facsimile device 10 includes a network control section 11. Modulation/demodulation section 12. Tonal signal detection section 13. Has a CPU of 15,
The network control unit 11 receives a control signal from the CPU 15 via the control bus 14 and switches the telephone set 2 . Here, it is assumed that the tonal signal detection section 13 identifies all signals necessary for communication in addition to the calling signal, response signal, and phase signal that are particularly related to mode identification in the present invention.

The CPU 15 operates as shown in the flowchart of FIG.
The communication mode is automatically identified, and depending on the automatic identification result, the MF mode or the in-house mode, which is faster than the MF mode, is selected to control transmission and reception.

Next, the flowchart shown in FIG. 1 will be explained. This flowchart shows a sequential combination of means for performing the sending and receiving functions. After the line is connected by dialing and the call state is established (100), the calling party presses the communication button (101), enters the right branch line, and sends out a calling (CNG) signal (105). On the called side, if the device is in-house, it can detect the CNG signal (102) and sends back a response (ANS) signal (102).
04). Therefore, the calling party detects this ANS signal (
106) L, message sending status in company mode (110
)to go into. The called party also enters the own mode message receiving state (111).

However, if the called party is an MF packing device, the CNG signal cannot be detected (102) because it is a signal unique to the company's device. Therefore, the called party does not send back an ANS signal and the calling party cannot detect (106) the ANS signal. Therefore, if a certain period of time (T seconds) has elapsed (107), the calling side determines that the called side is an MF device, and the phase (PH3) signal (
108) and enters the MF mode message transmission state (112). This allows messages to be sent to the MF device in MF mode.

CNG detection (102) in this flowchart.

The lines PH3 detection (103) and MF mode message reception status (113) indicate a case where the MF device is the calling side and this device is the called side in the call state, and no CNG signal is detected (102). , PH3 signal is detected (103), the device of the present invention identifies that the call is from the MF device, and enters the MF mode message receiving state (113).
)to go into.

Between the stations of our own equipment, which corresponds to the flowchart in Figure 1,
and the signal sequence between the MF equipment station and our own equipment station,
It is shown in Figure 3. Figure 3 (Ta) shows the case between own equipment stations, Figure 3 (bl) shows the case where the own equipment station is calling and the MF equipment station is called, and Figure 3 (C) shows the case where the own equipment station is called and the MF equipment station is called. This is the case where the device station is calling.

The upper part of the signal sequence in FIG. 3 is what is written in the flowchart in FIG. Therefore, the explanation will be omitted.

Here, CFR is reception preparation confirmation, PIX is image signal, RO
M is a message end signal, and MCF is a message confirmation signal. Note that PH3 is a phase signal, but since there is no difference between in-house mode and MF mode, PH39 (
PH318 (9Hz cycle) and PH318 (18Hz cycle).

〔Effect of the invention〕

As explained above, the facsimile device of the present invention is compatible with both the in-house mode and the mini-fax mode, and can automatically determine whether the other party is an in-house device or a mini-fax device during transmission and reception. You can communicate in the corresponding mode.

Therefore, operability is improved without malfunction.

Further, the communication button is pressed only when sending, and is not required when receiving. Therefore, since there is no need to distinguish between transmission and reception based on the presence or absence of original paper, a facsimile machine that uses both original paper and recording paper can be immediately realized.

[Brief explanation of drawings]

The drawings relate to the present invention; FIG. 1 is an operation flowchart of one embodiment, FIG. 2 is a circuit block diagram, and FIG. 3 is a sequence diagram showing a communication procedure between stations. 10-facsimile device, 11-network control unit, 12...
-Modulation/demodulation section, 13-)-Null signal detection section, 15-CP
U.

Claims (1)

[Claims] A facsimile device that is compatible with both in-house mode and mini-fax mode, wherein as a transmission function, when a communication button is pressed, a unique calling signal having a different frequency from the phase signal of mini-fax mode is sent out. means for detecting the calling signal, and when a response signal (described later) from the other station to the calling signal is detected within a certain period of time, the in-house mode is activated.
It includes a means for transmitting a message in a mode corresponding to each mode as a mini-fax mode when the signal is not detected, and a means for detecting the phase signal of the ring signal/mini-fax mode as a receiving function, and a means for detecting the phase signal of the ring signal/mini-fax mode when the ring signal is detected. The present invention is characterized by comprising means for receiving a message in a mode corresponding to each mode, such as setting the mode to the own company mode after transmitting a response signal when a call signal is detected and setting the mode to a mini-fax mode when a phase signal is detected without a paging signal being detected. facsimile machine.