JP2849468B2 - Information and communication equipment - Google Patents

Description

The present invention relates to information communication equipment such as a facsimile machine and a personal computer communication terminal.

(Prior Art) In a facsimile apparatus as an information communication apparatus, a facsimile apparatus stores received data in a memory at the time of reception, reads out the received data from the memory after the reception, prints out the data on a recording sheet, or displays an image on a display or the like. There is. In order to use the memory in this manner, the time required for reading the transmission original and printing the output of the reception original by reading data from the memory on the transmission side, storing the data in the memory on the reception side, and performing communication between the memories. There are advantages such as reduction in communication time.

However, the memory has a limited storage capacity that can store data, and the storage capacity is smaller when other reception contents or transmission contents are stored in the memory.

Therefore, when data having a capacity larger than the storable capacity of the memory is transmitted, the memory becomes full during communication, a communication error occurs, and information communication is interrupted.

Therefore, as described in Japanese Patent Application Laid-Open No. 2-209080, prior to transmitting the transmission data stored in the memory on the transmitting side, the storable capacity of the memory is transmitted from the receiving side, and the transmitting side can store the data. The capacity is compared with the capacity of the transmission data, and the communication between the memories is performed only when the transmission data can be stored in the memory on the receiving side. When the transmission data cannot be stored, the transmission is stopped, and the transmission is attempted again after a predetermined time. Facsimile machine. As a result, it is possible to prevent a situation in which the memory becomes full during the communication and a communication error occurs and the information communication is interrupted.

(Problems to be Solved by the Invention) However, in the facsimile apparatus described in Japanese Patent Application Laid-Open No. 2-209080, if the data cannot be stored in the memory on the receiving side, the transmission is stopped, and the transmission is attempted again after a predetermined time. However, if the receiving side receives another transmission data from another facsimile machine while waiting for a certain time, the storage capacity of the memory does not increase forever, and as a result, transmission may not be possible. is there. Also, there is a problem that transmission cannot be performed even when the absolute capacity of the memory on the receiving side is small.

The present invention has been made in view of the above points, and performs communication between memories when transmission data can be stored in a memory on the reception side, and prints out data on the reception side information communication device when communication between the memories cannot be performed. An object of the present invention is to provide an information communication device capable of reliably performing transmission by adopting a communication form that performs communication.

(Means for Solving the Problems) The invention according to claim 1 includes a memory for storing transmission data,
Calculating means for calculating the capacity of the transmission data stored in the memory; and comparing the capacity of the transmission data obtained by the calculation means with the storable capacity of the memory input from the receiving-side information communication device to determine whether the storage is possible. Judgment means for judging, and at the time of transmission of the transmission data, when the judgment means judges that storage is possible, and outputs a storage command signal instructing the storage of the transmission data to the memory of the receiving side information communication device,
And control means for outputting a print command signal for instructing the receiving side information communication device to print out transmission data when it is determined that storage is impossible.

The invention according to claim 2 is a memory for storing communication data,
Calculating means for determining the capacity of the transmission data stored in the memory and calculating the storage capacity of the reception data to be stored in the memory; and inputting the capacity of the transmission data determined by the calculation means and the information from the receiving side information communication device. Determining means for determining whether or not storage is possible by comparing the storable capacity of the memory to be performed, and storing the transmission data in the memory of the receiving side information communication device if it is determined that the data can be stored during transmission. Output the memory command signal to instruct,
If it is determined that storage is not possible, a print command signal for instructing print output of transmission data at the receiving side information communication device is output, and at the time of reception, the storable capacity information obtained by the arithmetic unit is transmitted to the transmitting side. Control means for outputting to the information communication device, storing the received data in the memory based on the input of the storage command signal from the transmitting side information communication device, and printing out the received data based on the input of the print command signal; It is provided with.

(Operation) According to the first aspect of the present invention, at the time of transmission, the capacity of the transmission data is obtained, and the capacity of the transmission data is compared with the storage capacity of the memory input from the receiving-side information communication device, so that the data can be stored. If the storage command signal instructs storage of transmission data in the memory of the receiving information communication device, and if storage is not possible, a print command signal instructing print output of transmission data in the receiving information communication device is output. Output. For this reason, the communication between the memories is performed when the transmission data can be stored in the memory on the receiving side, and when the communication between the memories cannot be performed, the transmission form is printed out by the information communication device on the receiving side so that the transmission is reliably performed. .

According to the second aspect of the present invention, at the time of transmission, the capacity of the transmission data is obtained, and the capacity of the transmission data is compared with the storage capacity of the memory input from the receiving side information communication device. Outputs a storage command signal instructing storage of transmission data in the memory of the information communication device on the side, and outputs a print command signal instructing printout of transmission data on the reception information communication device if storage is not possible. Further, at the time of reception, a storage capacity for storing received data in a memory is obtained, this storage capacity information is output to a transmitting information communication device, and a storage command signal input from the transmitting information communication device is obtained. , The received data is stored in the memory, and the received data is printed out based on the input of the print command signal. For this reason, the communication between the memories is performed when the transmission data can be stored in the memory on the receiving side, and when the communication between the memories cannot be performed, the transmission form is printed out by the information communication device on the receiving side so that the transmission is reliably performed. .

Embodiment Hereinafter, a configuration of an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a facsimile apparatus as an information communication device. Reference numeral 1 denotes a relay. The relay 1 switches connection between a telephone line 2 and a telephone circuit 3 or a modem under the control of a main processor 11 described later.

A telephone handset 5, a speaker 6, and a bell detection circuit 7 are connected to the telephone circuit 3, and the bell detection circuit 7 detects a call signal that enters when the relay 1 is switched to the telephone line 3 side. The detection signal is output to the main processor 11.

On the other hand, the modem 3 is connected to the relay 1 via the transformer 8, a DTMF detection circuit 9 is connected between the transformer 8 and the modem 4, and the DTMF is input when the relay 1 is switched to the modem 4. The signal is detected by the DTMF detection circuit 9 and a detection signal is output to the main processor 11.

The main processor 11 as a control means controls the telephone circuit 3 or the modem 4 to perform communication. The main processor 11 is connected to an operation unit 12 for inputting a telephone number and the like, and a display unit 13 for displaying a transmission / reception state.

In the bus 14 of the main processor 11, a ROM 15 storing a program for controlling the facsimile machine and the like, and RAMs 16 and 17 for storing and reading various data (RAM 17
Has a backup power supply), a RAM 18 as a memory for storing image data to be transmitted and received, an encoding and decoding circuit 10 for compressing and expanding image data, an alphabet,
A character generator 20 that creates symbols including numbers and letters is connected. A sub-processor 21 is connected to the bus 14, and a scanner 22 for reading a transmission original and a printer 23 for printing out received data are connected to the sub-processor 21.

The main processor 11 obtains the capacity of the transmission data stored in the RAM 18 and the function of the calculation means 11a for obtaining the capacity of the reception data that can be stored in the RAM 18, and the function of the transmission data obtained by the calculation means 11a. It has a function of a judging means 11b for judging whether or not storage is possible by comparing the capacity with the storable capacity of the memory of the receiving side information communication device.

 Next, the operation of the present embodiment will be described.

It is assumed that communication is performed between the facsimile apparatuses having the above functions.

On the transmission side, the transmission original is read by the scanner 22, compressed by the encoding / decoding circuit 19, and stored in the RAM 18. The capacity of the transmission data stored in the RAM 18 is obtained by the function of the calculating means 11a of the main processor 11, and is stored in the RAM 16 or RAM 17.

In addition, both the receiving side and the transmitting side
The capacity of the data that can be stored in the RAM 18 is obtained by the function of the calculating means 11a, and is stored in the RAM 16 or RAM 17.

The data transmission method includes a normal transmission from the calling side (sending side) to the calling side (receiving side) and a transmission from the calling side (becoming the transmitting side) to the calling side (becoming the receiving side). There is polling to send.

First, a case where normal transmission is performed will be described with reference to FIG.

When the line between the transmitting side and the receiving side is connected and the pre-communication processing starts, the receiving side sends the CED signal, NSF signal, CS
The I signal and the DIS signal are sequentially output. At this time, the storage capacity information of the RAM 18 on the receiving side is set and output in the NSF signal.

On the transmission side, when the storage capacity information set in the NSF signal is input, the function of the determination means 11b of the main processor 11 causes the input storage capacity and the transmission data stored in the RAM 16 or RAM 17 to be transmitted. If the transmission data capacity is smaller, it is determined that inter-memory communication is possible and set to affirmative, and if the transmission data capacity is larger, it is determined that inter-memory communication is impossible and negatively set.

Next, the NSS signal, TSI signal, DCS
The signal, the training data, and the TCR signal are sequentially output. At this time, positive information (memory command signal) or negative information (print command signal) of the inter-memory communication is set in the NSS signal and output.

Next, when the CFR signal is output from the receiving side to the transmitting side, the image data is transmitted from the transmitting side to the receiving side. This transmission is performed while reading the transmission data stored in the RAM 18 on the transmission side while scanning. Regarding the minimum scanning line time capability, a method of fixedly setting when performing inter-memory communication and a method of setting the minimum scanning line time capability information on the receiving side to the NSF signal and notifying the NSF signal to the transmitting side There is.

Also, at this time, the transmitting side that performs transmission performs transmission modes corresponding to the case where the communication between memories requires a short communication time and the case where printing is performed on the receiving side without performing the communication between the memories. Take.

On the other hand, on the receiving side, based on the positive information (storage command signal) or negative information (print command signal) of the inter-memory communication set in the NSS signal, the received data is stored in the RAM 18 if positive, and The printer 23 prints out the data while receiving the received data.

After the storage of the received data in the RAM 18 or the printout of the received data by the printer 23 is completed, post-communication processing is performed and the line is disconnected.

Then, on the receiving side, after receiving, the capacity of the data that can be stored in the RAM 18 is obtained by the function of the calculating means 11a of the main processor 11, updated in the RAM 16 or the RAM 17, and the received data stored in the RAM 18 is The printout can be arbitrarily performed by the printer 23.

As described above, since the storage capacity information of the RAM 18 on the receiving side is output to the transmitting side, and if the transmission data can be stored in the RAM 18 on the receiving side, the communication between the memories is performed, so that the communication time can be reduced. At the same time, RAM18 on the receiving side during communication
Can be prevented from becoming full and causing a communication error. In addition, when communication between memories cannot be performed, transmission can be reliably performed by adopting a communication mode of printing and outputting on the receiving side.

Next, a case where polling transmission is performed will be described with reference to FIG.

When the line between the calling side (receiving side) and the receiving side (transmitting side) is connected and the pre-communication processing is started, the CED signal, NSF signal, CSI signal, and DIS signal are sent from the calling side to the calling side in order. At the same time, an NSC signal, a CIG signal, and a DTC signal are output from the calling side to the call receiving side. At this time, the storage capacity information of the RAM 18 of the calling side is set and output in the NSC signal.

On the call receiving side, when the storage capacity information set in the NSC signal is input, the determination means 11b of the main processor 11
By comparing the input storable capacity with the data capacity stored in the RAM 16 or RAM 17,
If the storage data capacity is smaller, it is determined that inter-memory communication is possible, and the result is set to affirmative. If the transmission data capacity is larger, the inter-memory communication is determined to be impossible and the result is set to negative.

Next, the NSS signal, TSI signal, DC
The S signal, training data and TCR signal are output in order. At this time, positive information (memory command signal) or negative information (print command signal) of the inter-memory communication is set in the NSS signal and output.

Next, when a CFR signal is output from the calling side to the calling side, image data is transmitted from the calling side to the calling side.

At this time, the call receiving side that performs transmission takes a transmission mode corresponding to the case where inter-memory communication is performed and the case where communication is not performed.

On the other hand, on the reading side, based on the positive information (storage command signal) or the negative information (print command signal) of the inter-memory communication set in the NSS signal, the received data is stored in the RAM 18 if positive, and The printer 23 prints out the data while receiving the received data.

After the storage of the received data in the RAM 18 or the printout of the received data by the printer 23 is completed, post-communication processing is performed and the line is disconnected.

Then, on the calling side, after the reception, the capacity of the data that can be stored in the RAM 18 is obtained by the function of the calculating means 11a of the main processor 11, updated in the RAM 16 or RAM 17, and the received data stored in the RAM 18 is The printout can be arbitrarily performed by the printer 23.

(Effect of the Invention) According to the invention of claim 1, at the time of transmission, the capacity of transmission data is obtained, and the capacity of the transmission data is compared with the storage capacity of the memory input from the receiving side information communication device, If the storage is possible, a storage command signal for instructing storage of the transmission data in the memory of the receiving information communication device is output, and if the storage is not possible, a print output of the transmission data by the receiving information communication device is instructed. In order to output a print command signal, communication between memories is performed when transmission data can be stored in the memory on the receiving side, and when communication between memories cannot be performed, communication is performed by printing and outputting with the information communication device on the receiving side. Transmission can be performed reliably.

According to the invention of claim 2, at the time of transmission, the capacity of the transmission data is obtained, and the capacity of the transmission data is compared with the storage capacity of the memory input from the receiving side information communication device. Outputs a storage command signal instructing storage of transmission data in the memory of the receiving information communication device, and outputs a print command signal instructing print output of transmission data in the receiving information communication device if storage is not possible And
Further, at the time of reception, a storage capacity for storing received data in the memory is obtained, and this storage capacity information is output to the transmitting information communication device, and a storage command signal from the transmitting information communication device is input. While storing the received data in the memory based on the input of the print command signal, to print out the received data based on the input, the communication between the memories when the transmission data can be stored in the memory on the receiving side,
When communication between memories cannot be performed, transmission can be reliably performed by adopting a communication mode in which the receiving side information communication device prints out.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the information communication device of the present invention, and FIGS. 2 and 3 are explanatory diagrams for explaining a communication operation. 11: a main processor as control means, 11a ... arithmetic means, 11b ... determination means, 18 ... RAM as memory.

Claims (2)

(57) [Claims] 1. A memory for storing transmission data, an operation means for obtaining a capacity of the transmission data stored in the memory, and a capacity of the transmission data obtained by the operation means and input from the receiving side information communication device. Determining means for comparing the storable capacity with the storable capacity of the memory to determine whether or not the data can be stored; and when transmitting the transmission data, storing the transmission data in the memory of the receiving side information communication device if the determination means determines that the data can be stored And control means for outputting a print command signal for instructing print output of transmission data at the receiving side information communication device when it is determined that storage is impossible. Information and communication equipment. 2. A memory for storing communication data, a calculating means for determining a capacity of transmission data stored in the memory and a storage capacity of received data to be stored in the memory; Determining means for comparing the capacity of the transmitted data with the storable capacity of the memory input from the receiving side information communication device to determine whether or not the data can be stored; A print command signal for instructing storage of transmission data in a memory of the information communication device on the side and outputting a storage command signal for instructing printing of transmission data in the information communication device on the reception side when it is determined that storage is impossible. And at the time of reception, outputs the storable capacity information obtained by the arithmetic means to the information communication device on the transmitting side, and stores the storage capacity information from the information communication device on the transmitting side. Together and stores the received data based on the input signal to the memory, the information communication apparatus, characterized by comprising a control means for printing out the received data based on the input of the print command signal.