JP2680892B2 - Image communication apparatus and image communication method - Google Patents

Description

The present invention relates to an image communication device and an image communication method, and more particularly to an image for performing polling processing for transmitting image data when a request according to a predetermined communication procedure is received from a calling side. The present invention relates to a communication device and an image communication method.

[Prior Art] Conventionally, a polling process has been known in which a calling side transmits image data of a called side by a predetermined communication procedure.

In the conventional facsimile apparatus capable of polling transmission, the information that can be polled transmission is limited to the following.

First, there is document information set on the document table. The second is the document information stored in the memory on the polling transmission side, and the third is the information received in the designated memory.

[Problems to be Solved by the Invention] However, the above-mentioned conventional example has a drawback that information to be polled is limited. That is, the arbitrary information received by the memory could not be polled and transmitted.

For example, it was not possible to see the image information received from a destination or check whether there was received data.

 An object of the present invention is to solve the above problems.

[Means for Solving the Problems] In order to solve the above problems, in the present invention, when performing a polling process for transmitting image data when a request according to a predetermined communication procedure is received from a calling side, Receiving the received image data, storing the received image data in an image memory, making the received image data in the image memory erasable, receiving image data stored in the image memory and receiving image data in the image memory Management information including first information relating to communication results of each of a plurality of image receptions including image receptions in which no image is stored, and second information indicating whether each received image data is stored in the image memory. When the predetermined control information stored in the storage means and transmitted from the calling side is detected,
The first and second stored in the management information storage means
Information transmitted by polling in a predetermined signal format, or further, identification information received by the predetermined communication procedure, which includes identification information for identifying each image reception in which the first information is executed. The image data corresponding to is read from the image memory and the read image data is polled and transmitted.

[Operation] According to the above configuration, the management information is the first information regarding the communication result of the respective image reception and the second information indicating whether or not the respective received image data is stored in the image memory. When the predetermined control information stored in the storage means and transmitted from the calling side is detected, the first and second information stored in the management information storage means is polled and transmitted.

Further, the calling side transmits the identification information by the predetermined communication procedure using the identification information included in the first information for identifying the executed respective image receptions, and is stored in the image memory. Specific image data can be polled and transmitted.

EXAMPLES Hereinafter, the present invention will be described in detail based on examples shown in the drawings.

FIG. 1 is a block diagram showing an embodiment of a facsimile apparatus according to the present invention.

In FIG. 1, reference numeral 2 designates a network control device for controlling connection of a telephone exchange network, switching to a data communication path, or holding a loop by connecting to a terminal of the line to use the telephone network for data communication or the like. NCU). The signal line 2a connected to the NCU 2 is a telephone line.

The NCU 2 inputs the signal of the signal line 32a, and if the signal level is "0", the telephone line is connected to the telephone 4 side, that is, the signal line 2a is connected to the signal line 2b. If the signal on the signal line 32a is input and the signal level is "1", the telephone line is connected to the facsimile machine side, that is, the signal line 2a is connected to the signal line 2c.

In a normal state, the telephone line 2a is connected to the telephone 4 by the NCU 2. Also, the NCU 2 outputs a signal of signal level “1” to the signal line 2d when detecting an incoming signal,
When no incoming signal is detected, a signal of signal level "0" is output to the signal line 2d.

Reference numeral 6 denotes a hybrid circuit that separates a transmission system signal and a reception system signal. That is, the transmission signal on the signal line 16a passes through the signal line 2c and is transmitted to the telephone line via the NCU 2. The signal sent from the other party is output to the signal line 6a via the signal line 2c after passing through the NCU 2.

Reference numeral 8 denotes a reading circuit, which is located in the main scanning direction 1
The image signals for the lines are sequentially read to generate a signal sequence representing the binary values of white and black, and are constituted by an image pickup device such as a CCD (charge coupled device), an optical system, and a document conveying system. The binary signal sequence of white and black is output to the encoding circuit 10 via the signal line 8a.

The encoding circuit 10 receives the data output to the signal line 8a and outputs the encoded (MH encoded or MR encoded) data to the signal line 10a.

Reference numeral 12 is a modulator for an image signal that performs modulation based on the well-known CCITT recommendation V27ter (differential phase modulation) or V29 (quadrature modulation). The modulator 12 receives the signal on the signal line 10a, performs modulation, and outputs the modulated data to the addition circuit 16 via the signal line 12a.

On the other hand, reference numeral 14 is a modulator for a procedure signal that performs the modulation based on the well-known CCITT recommendation V21. The modulator 14 inputs the procedure signal of the signal line 32b to perform the modulation, and outputs the modulated data to the signal line.
The signal is output to the addition circuit 16 via 14a.

The adder circuit 16 inputs the signals of the signal lines 12a and 14a,
The result of the addition is output to the signal line 16a.

Reference numeral 15 is a voice message sending circuit, which is composed of a PCM digital voice reproducing device or the like, and when a pulse is input from the signal line 32j, a prerecorded voice message is input to the adding circuit 16 via the signal line 15a.

On the other hand, in the receiving system, reference numeral 18 denotes a known CCITT recommendation V21.
This is a demodulator for a procedure signal that performs demodulation based on. The demodulator 18 receives the signal on the signal line 6 and performs modulation based on Recommendation V21, and sends the demodulated data to the control circuit 3 via the signal line 18a.
Output to 2.

The demodulator 20 is an image signal demodulator that performs demodulation based on the well-known CCITT recommendation V27ter (differential phase modulation) or V29 (quadrature modulation). The demodulator 20 inputs the signal on the signal line 6a. Demodulation is performed and the demodulated data is output to the memory 22 via the signal line 20a.

Reference numeral 22 is a memory circuit that stores the received image data. The communication number of the image data received via the signal line 32d is stored, and the received information is sequentially stored in the memory space by the pointer. Further, the data stored in the memory via the signal line 32d is sequentially output to the signal line 22a or the signal line 22b by the pointer.

Here, when the signal of the signal level "0" is output to the signal line 32e, the memory circuit 22 outputs the received information to the signal line 22a. When the signal of the signal level “1” is output to the signal line 32e, the memory circuit 22
Outputs the received information to the signal line 22b. Also, signal line 3
Deletes information received via 2d.

Reference numeral 24 is a decoding circuit that inputs the data output to the signal line 22a and outputs the decoded (MH decoding or MR decoding) data to the signal line 24a.

Reference numeral 26 is a recording circuit for inputting the decoded data output to the signal line 24a and performing sequential recording.

Reference numeral 28 inputs the data output to the signal line 6a,
This circuit detects DTMF signals. DTMF signal detection circuit 28
When detecting the DTMF signal, outputs the information to the signal line 28a.

Reference numeral 30 is a circuit for storing the communication result record information, and the memory circuit 30 stores the communication result record information of the past 20 communications, for example. This information includes the communication number, destination abbreviation,
The destination telephone number, the communication start time, the time required for communication, the number of communications, the presence or absence of an error, etc. are stored.

When storing data in the memory circuit 30, the communication number,
After outputting the abbreviated name of the destination, the telephone number of the destination, the communication start time, the time required for communication, the number of communications, and error information to the signal line 30a, a write pulse is generated on the signal line 32f.

When reading the data stored in the memory circuit 30,
When a read pulse is generated on the signal line 32g after outputting the communication number to the signal line 30a, the memory circuit 30 causes the signal line 30a to correspond to the communication number, the abbreviation of the other party, the other party's telephone number, the communication start time, and the communication required The time, the number of communications, and error information are output to the signal line 30a.

Reference numeral 31 is a circuit for detecting the incoming mode, which outputs the signal level "1" to the signal line 31a when the manual incoming mode is set, and outputs the signal level "0" otherwise.

Reference numeral 32 includes a microprocessor or the like, and controls each of the above units. The communication control procedure of the control circuit 32 is ROM3
It is stored in 2a as a control program.

 Next, the operation in the above configuration will be described.

First, the outline of the facsimile apparatus of FIG. 1 will be described.

When the 16 Hz ringing signal is detected in the automatic call receiving mode, the device of FIG. 1 transmits the initial identification signal (NSF / CIS / DIS) signal subsequent to the CED signal.
After this, when the procedure signal on the calling side is detected, the operation shifts to the communication operation, and when the tone signal corresponding to "#" is detected in the DTMF signal, the information "Please enter which information to send" is displayed in the voice message. Is sent.

When the operator on the calling side desires to receive polling of the communication result record, the tone signal corresponding to "*" is transmitted by the DTMF signal and the start button is pressed.

When the device in Fig. 1 detects this "*" signal, NSF / CIS /
After detecting DIS signal, NSS / TSI / DCS signal and training / TCF signal are transmitted. Then, after detecting the CFR signal, the communication result record is transmitted as image information.

The operator on the calling side can view the communication result record and, if there is desired image information, transmit it. In this case, the calling operator again sends a "*" tone with the DTMF signal.

As a result, the device in Fig. 1 will send the voice message "Please enter which information to send".
After that, the calling operator specifies the 4-digit communication number with DTMF and presses the start button. When the facsimile machine detects a 4-digit DTMF signal that specifies the communication number, it sends NSF /
After detecting CIS / DIS signal, NSS / TSI / DCS signal and training / TCF signal are transmitted. After detecting the CFR signal, the image information of the designated communication number is transmitted.

2A to 2C show the communication control procedure of the control circuit 32 stored in the ROM 32a. Flows with the same numbers in FIGS. 2A to 2C are assumed to be continuous at that position.

Initialization is performed in steps S42 to S48 in FIG.

In step S42, the signal of the signal level "0" is output to the signal line 32a, the CML relay of NCU2 is turned off,
The line 2a is connected to the telephone 4 side.

In step S44, a signal of signal level "0" is output to signal line 32e, and memory circuit 22 is set to output data to signal line 22a.

In step S46, the signal level "0" is applied to the signal line 32h.
The signal is output and the data of the signal line 8 is input to the encoding circuit 10.

In step S48, the signal of the signal level "0" is output to the signal line 32b, and the high speed modulator, that is, the modulator 12 for the image signal, instructs to input the signal of the signal line 10a.

In step S50, it is determined whether manual communication has been selected. When manual communication is selected in step S52, the CML relay of NCU2 is turned on and the line 2a is connected to the hybrid circuit 6 side.

Then, in steps S54, S56, and S58, normal reception operation is performed. Here, the received image data is also stored in the memory circuit 22. When the manual reception is not selected, the process proceeds to step S60.

In step S60, the control circuit 32 inputs the signals on the signal lines 2d and 31a, and determines whether or not the call signal of 16 Hz is detected in the automatic incoming call mode. If this step is affirmed, the process proceeds to step S64, but if not, other known communication processing is performed in step S62.

In step S64, the signal of signal level "1" is output to the signal line 32a to turn on the CML relay of the NCU 2, that is, the line 2a is connected to the hybrid circuit 6.

In step S66, a known facsimile communication pre-procedure is performed.

In step S68, it is determined whether the NSS / TSI / DCS signal is detected. If the NSS / TSI / DCS signal is detected, the process proceeds to step S54, and if not detected, the process proceeds to step S70.

In step S70, the signal on the signal line 28a is input and DT
It is determined whether the MF signal is detected. If the DTMF signal is detected, the process proceeds to step S72 in FIG. 2B, and if not detected, the process proceeds to step S66.

In step S72 of FIG. 2B, the detected DTM
It is determined whether or not the F signal is the "#" tone for transmitting the communication result record. If this step is affirmed, the step S74 is performed. If not, for example, the reception image in the memory circuit 22 is transmitted. When the "*" tone requesting the is transmitted, the process proceeds to step S96.

In step S74, a voice message transmission command pulse is generated on the signal line 32j, and the voice message transmission circuit 15 transmits a voice message "Please input which information is to be transmitted" to the other party.

In step S76, a timer composed of software or hardware built in the control circuit 32
Set T1 to 35 seconds.

In steps S78 and S80, it is determined whether the NSF / CSI / DIS signal is detected within the set time of the timer T1.
When the NSF / CSI / DIS signal is detected within the predetermined time T1, NSS / TSI / DCS is transmitted in step S84, and then step S8.
Do the remaining pre-steps at 6. When the predetermined time T1 has expired, error processing is performed in step S82.

In step S88, the communication result record information is input from the memory circuit 30 and is output to the signal line 32i. Here, the communication number corresponding to the communication in which the image data is currently stored in the memory circuit 22 is attached with a predetermined mark or the like to notify the other side. A character generator or the like (not shown) is used to develop the communication result data into image information.

In step S90, the signal level "1" is applied to the signal line 32h.
Signal is output, and an instruction to input the signal of the signal line 32i to the encoding circuit 10 is given. As a result, the image data of the communication result output from the signal line 32i is input to the encoding circuit 10, and this image is transmitted to the partner station in step S92.

 In step S94, the post procedure is executed.

On the other hand, in step S96, it is determined whether or not the information of the communication number designated by the DTMF signal exists in the memory circuit 22. When the information of the communication number designated by the DTMF signal exists in the memory circuit 22, step S100
If it does not exist, error processing is performed in step S98.

In step S100 of FIG. 2 (C), a voice message transmission command pulse is generated on the signal line 32j, and a voice message "Please input which information is to be transmitted" is transmitted to the other party.

In step S102, the predetermined time T1 is set to 35 seconds.

In steps S104 and S106, NS within a predetermined time T1.
It is determined whether the F / CSI / DIS signal is detected. If the NSF / CSI / DIS signal is detected within the predetermined time T1, step S11
When NSS / TSI / DCS is transmitted at 0, the remaining pre-procedure is performed at step S112. When the predetermined time T1 is over, error processing is performed in step S108.

In step S114, DT is sent via the signal lines 32d and 32e.
The memory circuit 22 is set to output the information of the communication number designated by the MF signal to the signal line 22b.

In step S116, the signal of the signal level "1" is output to the signal line 32b, and the modulator 12 is instructed to input the signal of the signal line 22b.

In step S118, it is stored in the memory circuit 22.
The image data designated by the DTMF signal is transmitted to the partner station, and the post-procedure is performed in step S120.

According to the above embodiment, by transmitting the DTMF signal, the communication result is transmitted as the image information.
The image data received by the memory can be transmitted by the communication indicated in the communication result by the signal sequence.

Therefore, the user can specify the presence / absence of communication from the outside or the like, or specify the image data transmitted from the important partner station to transmit.

In the above embodiment, after transmitting the NSF / CSI / DIS signal, the "#" signal of the DTMF signal is detected and the voice message is transmitted. After that, communication result record information by DTMF signal,
Alternatively, when the NSF / CSI / DIS signal is detected after receiving the polling transmission instruction of the image information received in the memory, it is considered that the polling transmission is performed regardless of the polling information included in the NSF signal. However, the polling transmission may be performed unconditionally, and the transmission may be controlled based on the information included in the NSF signal.

Further, in the above embodiment, the polling transmission of the communication result record information was considered, but the management information other than the communication result record information may be polled transmitted.

EFFECTS OF THE INVENTION As is apparent from the above, according to the present invention, the first information regarding the communication result of each image reception and the second information indicating whether or not each received image data is stored in the image memory Of the information as management information in the management information storage means,
When the predetermined control information transmitted from the calling side is detected, the first and second information stored in the management information storage means is transmitted by polling. By polling and receiving the information of No. 2, what kind of image reception is performed and which received image data is stored in the image memory can be recognized from the calling side.

Further, the calling side transmits the identification information according to the predetermined communication procedure by using the identification information for identifying each executed image reception included in the first information, and the identification information stored in the image memory is transmitted. It is possible to specify the image data of and send it by polling.

That is, there is an excellent effect that the presence / absence of received image data can be confirmed from the outside, and if necessary, the received image data can be designated and polled for reception.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a facsimile apparatus according to the present invention, and FIGS. 2A to 2C are flow charts showing the control procedure of the control circuit of FIG. 2 ... NCU, 4 ... Telephone 6 ... Hybrid circuit 8 ... Reading circuit 10 ... Encoding circuit 12, 14 ... Modulator 15 ... Voice message transmission circuit 16 ... Addition circuit, 18, 20 ... Demodulator 22 …… Memory circuit, 24 …… Decoding circuit 26 …… Recording circuit 28 …… DTMF signal detection circuit 30 …… Memory circuit 31 …… Incoming mode detection circuit 32 …… Control circuit

Claims (4)

(57) [Claims] 1. An image communication apparatus for performing a polling process for transmitting image data when a request according to a predetermined communication procedure is received from a calling side, a receiving unit for receiving the image data, and an image data received by the receiving unit. An image memory for storing the received image data in the image memory, an erasing means for erasing the received image data in the image memory, an image receiving operation in which the received image data is stored in the image memory and an image in which the received image data is not stored in the image memory Management information storage means for storing first information regarding communication results of a plurality of image receptions including reception, and second information indicating whether or not each received image data is stored in the image memory, Detecting means for detecting predetermined control information transmitted from the calling side, and detecting the predetermined control information by the detecting means,
The first and second stored in the management information storage means
An image communication apparatus comprising means for polling and transmitting the information of 1. in a predetermined signal format. 2. The first information includes identification information for identifying each executed image reception, and image data corresponding to the identification information received by the predetermined communication procedure from the image memory. The image communication apparatus according to claim 1, wherein the image data is read and the read image data is transmitted by polling. 3. An image communication method for performing a polling process of transmitting image data when a request according to a predetermined communication procedure is received from a calling side, receiving image data, storing the received image data in an image memory, Receiving image data in the image memory is made erasable, and each of a plurality of image receiving operations including image reception in which the received image data is stored in the image memory and image reception in which the received image data is not stored in the image memory The first information on the communication result and the second information indicating whether or not the respective received image data are stored in the image memory are stored in the management information storage means, and the predetermined information transmitted from the calling side is stored. When the control information is detected, the first and second information stored in the management information storage means may be polled and transmitted in a predetermined signal format. Image communication method for the butterflies. 4. The first information includes identification information for identifying each executed image reception, and image data corresponding to the identification information received by the predetermined communication procedure from the image memory. The image communication method according to claim 3, wherein the image data is read and the read image data is transmitted by polling.