JPH02237367A - Facsimile receiver - Google Patents

Abstract

PURPOSE:To prevent mis-input of additional information by sending a reception fault signal representing the fault of reception of a multi-frequency signal when the arrival of the multi-frequency signal is discriminated while a reception capability notice signal is sent. CONSTITUTION:While a multi-frequency signal (in general, called PB signal because a pushbutton dial signal is in use) incoming discrimination section 1 sends a reception capability notice signal, when the reception of the multi- frequency signal is discriminated, a reception fault signal representing a fault of the reception of the multi-frequency signal is sent by a reception fault signal transmission section 2. Then the retransmission of correct added information is urged to the operator of the opposite side. Thus, the occurrence of malfunction to be recognized as normal input information regardless of normal unreception of a PB signal and the entry of the added information of an original in erroneous content is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a facsimile receiver, and in particular to a method for receiving additional information other than both signals from a transmitter of the other party using a multi-frequency signal preceding an image signal; The present invention relates to a facsimile receiver having a method of receiving a mark information manuscript in which mark information is written as image information and knowing additional information by analyzing the mark information.

(Prior Art) Conventionally, this glazed facsimile receiver transmits a called station identification signal (hereinafter referred to as C
After transmitting the absorbency identification signal (hereinafter referred to as DIS signal), which is a digital signal indicating reception capability and a multi-frequency signal (generally a push-button dial signal is used as a multi-frequency signal, the following (called PB signal),
Or mode setting command signal of digital signal (hereinafter DC8
When an MF signal is received, additional information of the document to be received is input using the PB signal, and when a DCS signal is received as a digital command signal indicating conditions for transmitting image information. The system receives a mark information document containing mark information as image information, and inputs additional information of the document by analyzing the received mark information.

(Problems to be Solved by the Invention) When the above-mentioned conventional facsimile receiver receives an incoming call, it sends out the IJiS signal following the CED signal. When the receiver opens the PB signal and sends out the PB signal, the DIS
A PB signal may be received during signal transmission. In this case, even though the PB signal cannot be received normally and the additional information of the original is input with incorrect content, it is recognized as normal input information.
The disadvantage is that it may cause malfunctions.

The purpose of the present invention is to solve such a deficiency, and when a PB signal is received while transmitting a DIs signal, the received P signal is
To provide a facsimile receiver which invalidates a B signal, sends out a reception failure signal, and urges an operator at the other end to resend correct additional information.

(Means for Solving the Problems) In order to achieve the above object, the facsimile receiver of the present invention has a facsimile I7 receiver that receives image information after receiving additional information consisting of a PB signal. a PB signal arrival determination unit 1 that determines whether or not the PEI number has been received while transmitting a reception capability notification signal that identifies the function of the receiver that is transmitted before the PB signal reception determination unit 1; If it is determined that the MF signal was received while the unit 1 was transmitting the reception capability notification signal, the kiI
``The configuration includes a reception failure signal sending unit 2 that sends out a reception failure signal indicating that reception of a signal has failed.

(Example) Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

As shown in FIG. 1, the main part of this embodiment is a P
The B signal incoming determination unit 1 is connected to a reception failure signal transmission unit 2 that transmits a signal to inform the other party of the reception failure when the P-3-B signal is received while transmitting the DI8 signal. a DI8 signal sending s4 that sends out a DI8 signal, a PB signal detection section 5 that detects a PB signal when it is input, and a PB signal incoming determination section 1. , a reception failure signal transmitter 2 , a DIS signal transmitter 4 , and a controller 6 that controls the PB signal detector 5 .

The network control unit 3 also includes a hybrid circuit 10 that mixes different signals and sends them to the line and receives input from the line, an incoming call detection circuit 11 that detects incoming facsimile communications, and a CED signal sending circuit 12. It consists of

In Figure 1, when there is an incoming facsimile communication,
The incoming call detection circuit 11 outputs an incoming call detection signal to the signal line 101. The CED sending circuit 12 receives this incoming call detection signal and outputs a CED signal to the output signal line 107. The output circuit outputs signals on output signal lines 102, 107, and 108 to line 100, and inputs an input signal from output line 100 to input signal line 103.

When the DIS signal sending unit 4 receives the sending request signal from the control unit 6 via the signal line 110, it outputs the DIs signal to the output signal line 102. Further, the DI8 signal sending unit 4
When outputting the S signal 1) I8 sending start signal as signal #i
1109 to the PB incoming determination unit 1, and upon completion of sending the DIS signal, a DI8 sending completion signal is sent to the signal line 10.
4 to the FB incoming call determination unit 1.

The PB detection unit 5 receives P from the control unit 6 via a signal line 112.
When a B detection request signal is received, a signal is input from the input signal line 103, and when a PB signal is detected, the PB signal is
It outputs a PB signal detection signal to the control unit 6 via the B data line 117 and outputs a PB signal detection signal to the PBN signal determination unit 1 and the control unit 6 via the signal line 105.

Furthermore, upon receiving a PB detection stop signal from the control unit 6 via the signal line 114, the PB detection operation is stopped.

In order to determine whether or not a PB signal has been received while transmitting a DIS signal, the PB destination determination station 1 receives a collision detection request signal from the control unit 6 via the signal line 111, and outputs a signal on the signal line 109. Started monitoring the DI8 transmission start signal, and
From the time the IS transmission start signal is received until the DI8 transmission completion signal is received via the signal line 104, the signal il1
05 PB signal, and when a PB detection signal is received from the signal line 105 while the DIS signal is being sent, a collision detection signal is output to the control unit 6 via the green signal 106.

In addition, upon receiving the ram detection stop signal from the control unit 6 via the signal line 115, the PB arrival determination city 1 stops I) the collision detection operation that determines whether there is a collision between the sending of the Is signal and the reception of the FB signal. do.

The IBlj Mito 6 operates according to the flowchart shown in FIG. In addition, the symbol A enclosed in a circle in Figure 2
, B, C, and D are connected to other locations with the same code.

In step 21, the incoming call detection signal is sent to the signal line 10.
1 from the incoming call detection circuit 11, step 2
As shown in FIG. 2, a PB detection request signal is output to the PB signal detection unit 5 via the signal line 112 to request detection of the PB signal. Further, as shown in step 23, a collision detection request signal is output to the PB signal incoming determination unit 1 via the signal line 111 to request detection of a collision between the output of the DI8 signal and the reception of the PB signal, and the process proceeds to step 24. As shown, a DIS transmission request signal is output to the DIS signal transmission section 4 via the signal line 110 to request transmission of the DI8 signal.

At the same time, as shown in steps 25 and 26, the PB detection signal on the signal line 105, the collision detection signal on the signal line 106, and the input signal line 116 are monitored.

In step 25, if the control unit 6 receives the collision detection signal from the FB reception determination unit, l) it determines that the PB signal was received while the Is signal was being sent, and invalidates the PB signal received up to that point. - In addition, as shown in step 32, a signal indicating that reception of the PB signal has failed (hereinafter referred to as NAK signal)
A NAK transmission request signal is sent to signal line 11.
A reception failure signal is outputted to the sender 2 via line 108, and a reception failure signal is outputted to the other party's transmitter side via output signal line 108. Then as shown in step 33.34 - Dan 1)
After stopping and clearing the B signal detection and collision detection, go to Kakuhi step 35. As shown in 36, the PB detection signal and the collision detection signal are continued to be monitored.

Next, in steps 25 and 26, if the collision detection signal is not received but the PB detection signal is received, step 2
7, the PB signal is input from the PB data line 117, and the PB detection signal, collision detection signal and input signal @116 are input.
Continue to monitor. The PB signal input here is the final PB
In the case of data (for example, a signal corresponding to a function button mark),
As shown in step 29, a PB detection stop signal is output to the PB detection unit 5 through the signal line 114 to stop detection of the PB signal, and as shown in step 30, a collision detection stop signal is output through the signal line 115. After the PB signal is output to the incoming determination section 1, the collision detection operation is stopped, and the input PB signal is analyzed, the image document reception process is performed as shown in step 31.

Step 25. At step 26, while monitoring the I) B detection signal and the collision detection signal, the DC8 signal is detected as shown in step 37.
When the signal is received, it is determined that the mark information document containing the mark information has been received, and the PB detection stop signal and collision detection stop signal are output as shown in steps 38 and 39, and the PB is stopped.
After stopping the operation of the signal detection section 5 and the PB signal incoming determination section 1, reception processing of the mark information document is performed as shown in step 40.

Furthermore, the control unit 6 monitors the PB detection signal, the collision detection signal, and the DOS signal from the input signal generator 116 in steps 26, 26. When no signal is detected,
As shown in step 41.24, the DIS transmission request signal is output to the DIS signal transmission s4, the DIS signal is outputted via the output signal line 102, and the PB detection signal, collision detection signal, and input signal are output again. Line 116 is monitored.

(Effects of the Invention) As explained above, the present invention provides P
Detects that the B signal has been received and displays the P signal received so far.
By disabling the B signal and sending a reception failure signal to the operator on the other party's transmitting side to urge retransmission of the PB signal, there is an effect that erroneous input of additional information can be avoided.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment according to the present invention. FIG. 2 is a flowchart showing an example of the operation of the control section of the embodiment shown in FIG. 1... PB signal incoming determination section 2... Reception failure signal sending section 3... Network control section 4... DI8 signal sending section 5... PB signal detection section 6... Control section 10... -Hybrid circuit 11...Incoming call detection circuit 12...CED signal sending circuit 21, 22, 23, 24, 25, 26, 27, 28, 2
9, 30, 31, 32, 33, 34, 35, 36, 37
, 38, 39, 40.4.1... Step 100 of the flowchart... Lines 101, 104, 105, 106, 109, 110, 1
11, 112, 113, 114, 115...Signal line 1
02, 107, 108... Output signal line 103, 116
...Input signal line 117...PB data line Patent applicant Hisashi Inoro, agent for NEC Corporation, patent attorney

Claims (1)

[Claims] After receiving the additional information consisting of a multi-frequency signal, the facsimile receiver that receives the image information sends out a reception capability notification signal that identifies the receiver's function before receiving the image information. a multi-frequency signal incoming determination unit that determines whether the multi-frequency signal has been received; and a multi-frequency signal incoming determination unit that determines that the multi-frequency signal has arrived while transmitting the reception capability notification signal. 1. A facsimile receiver comprising: a reception failure signal transmitter for transmitting a reception failure signal indicating that reception of a multi-frequency signal has failed.