JPS62262562A - Communication system between personal computer and facsimile - Google Patents

Abstract

PURPOSE:To realize high quality services by incorporating a KANJI (Chinese character)ROM in a facsimile, transferring a character code from a personal computer to the facsimile, and encoding and transmitting a signal-converted picture signal in the interior of the facsimile. CONSTITUTION:When a personal computer part 30 receives the notification of a parameter for a picture signal request, it transfers a command showing a document signal to a facsimile part 10, and consecutively transfers a character code signal. In terms of documents and the like made of character codes, a character font corresponding to the character code is taken out of the KANJI ROM 22, and inputted to a character code/pattern conversion circuit 23, thereby converting them into facsimile signals sequentially. They are inputted and encoded in a CPU 19, and transferred to the facsimile equipment of the other party through an I/O circuit 16 and a MODEM 15.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical field to which the invention pertains The present invention provides high-performance and high-quality facsimile communication.
It concerns an economical communication method for PCs and facsimile machines.

(2) Prior Art In the past, facsimile machines have been developed as communication devices for transmitting existing manuscripts, but they do not have a document creation function or data processing function. On the other hand, personal computers have become extremely popular and are excellent at creating documents and processing data. For this reason, it is thought that interfaces that connect the two will become popular in the future. But if you simply combine the two.

It has the following drawbacks.

In order to send a document created on a personal computer by facsimile, it is necessary to electrically convert the image signal from a character to a facsimile signal, encode it, and send it to the other party's facsimile machine.

In this case, in order to communicate with a device with high resolution (e.g., G3 facsimile, 8 dots≠dat/mm) such as a facsimile device, the font size of the kanji ROM (memory) that the personal computer normally has (e.g. , 16 dots x 16 dots), if the image signal that has been electrically converted into a character/facsimile signal is encoded and sent to the other party's facsimile, the printed character size will be approximately 2 mm x 2 mm, making it difficult to see.

Therefore.

Inside the personal computer, it is necessary to encode the vertically and horizontally enlarged image signal and send it to the other party's facsimile.

FIG. 3(A) shows the received and recorded image side using this method.

The received recording image 40 shown in FIG. 3(A) is.

In order to fax documents created on a personal computer to a standard G3 facsimile machine with a high resolution of 8 dots/mm x 7.7 dots/mm, the personal computer's font size 16
Using dot X 16 dot kanji ROM (memory), double the height and width to approximately 4mm x 4III11
The image signal converted to the font size is encoded.

This is based on an experimental example in which the fax was sent to the other party's fax machine.

In this way, facsimile machines basically scan existing documents asynchronously for communication, so they have high resolution, whereas personal computers do.

Because it deals with character codes, there was no problem even with relatively low resolution. However, when transmitting a document created on a personal computer by facsimile, it is desirable to be able to communicate by taking advantage of the high resolution of facsimile.

(3) Purpose of the Invention In order to solve this problem, the present invention provides a method for transmitting documents created on a personal computer by facsimile.
A kanji ROM (memory) is built into the facsimile machine, character codes are transferred from the personal computer to the facsimile machine, and the image signal converted from a single character to a facsimile signal is encoded and sent to the other party's facsimile machine.

The received recorded image 40 shown in FIG. 3(B) is an image signal obtained by converting a single character into a facsimile signal by transmitting the character code from a personal computer to the facsimile by incorporating a 24 dot x 24 dot kanji ROM (memory) into the facsimile. This is an example of encoding and transmitting to the other party's facsimile, and the size of one character is approximately 3 mm x 3 mm.

Thus, an object of the present invention is to provide a high-quality personal computer/facsimile communication system that takes advantage of the high resolution of facsimile.

(4) Structure of the invention (4-1) Differences between characteristics of the invention and conventional technology The present invention provides facsimile reading and
Recording unit, network control unit (NCU).

It controls the communication control unit of the modem unit 1, and when transmitting a document created on a personal computer by facsimile, the facsimile has a built-in kanji ROM (memory), transfers character codes from the personal computer to the facsimile, and transmits the character code inside the facsimile. The most important feature is that it is equipped with means for encoding image signals converted from text/facsimile signals and transmitting them to the other party's facsimile machine, thereby realizing high-quality facsimile communication services.

(4-2) Example FIG. 1 is a diagram illustrating the present invention in detail.

10 is a facsimile (FAX) section, and 30 is a personal computer (PC) section, each of which is comprised of the following sections.

In the facsimile section 10, 11 is a telephone line.

12 is a network control circuit; 13 is a telephone circuit; 14 is an automatic incoming call detection/automatic dialing circuit; 15 is a modem circuit;
6 is an input/output circuit (Ilo), 17 is a reading circuit, 18
is a recording circuit, 19 is a central processing circuit (CPU), 20
21 is a memory circuit (ROM/RAM) and an interface control circuit.

22 is a kanji ROM, and 23 is a character code/pattern conversion circuit (C/P conversion).

In the personal computer section 30, 31 is a personal computer system (PC system) section;
32 is a disk section, and 33 is a display section.

34 is an interface control circuit, 35 is a personal
This is a kanji ROM that the computer system has.

FIG. 2 is an example of a sequence for operating the circuit shown in FIG. 1. Two examples of transmission operations according to the present invention will be described below with reference to FIG.

■Create documents in advance on a personal computer.

When creating documents etc. and transmitting the created documents to the other party's facsimile machine, the following operations are performed in sequence.

In the following explanation, the operation will be explained using the G3 facsimile communication procedure, but the same effect can be obtained by using a similar method in a communication device such as the G4 facsimile.

■ When the personal computer unit 30 generates a send (i request), it issues a command (hereinafter referred to as CTB) to control the facsimile.
ER).

When the facsimile unit 10 receives this command, it controls the automatic incoming call detection/automatic dialing circuit 14 via the input/output circuit (1/, 0) 16, and then sends the telephone number via the network control circuit 12! A dial pulse (DIAL) is sent to s11. There are two types of transmission circuits: one that uses a dial pulse (DP) and one that uses a button button (PB). Those that use a dial pulse have a dial pulse sending speed of 10 pps/20 pps.
Therefore, it should be set in advance according to the accommodated line.

■ When the other party's device answers the incoming call, from the second line.

A polarity reversal signal (REVEPSE) is sent back to network control circuit 12. The network control circuit 12 receives nine polarity inversion signals (RE
By detecting V E R S E).

Detects that the other party's device is connected to the line. If the polarity reversal signal is not detected for a certain period of time.

The automatic incoming call detection/automatic calling circuit 14 is controlled again.

A dial pulse (DIAL) is sent to the telephone line 11 via the network control circuit 12. Due to this.

Retransmission will be possible automatically.

■ When the other party's device detects 3 incoming calls, it subsequently sends the called station identification signal (CHD) and initial identification signal (C3I, NS
F, DIS). Therefore.

Initial identification signal input from the line (C5I, NSF, D
is) is demodulated by a modulation/demodulation (modem) circuit I5, and sent to a central processing circuit (CPU) via an input/output circuit (Ilo) 16.
)19. Since the initial identification signal has reception capabilities such as paper size, encoding method, and transmission time as parameters, it is notified as a status signal (STB) to the personal computer section 30 that sent the transmission request. The status signal (SrI2) is a 5-parameter (DA
It is composed of TALI NK).

■ The personal computer section 30 has parameters (
A command (CTB) corresponding to the reception command signal (TS[, DCS>) is determined based on the reception capability of the partner device, based on
Create a parameter (
DCS PARAMETER) is sent to the facsimile unit IO via the interface control circuit 34 and the interface control circuit 21.

■ In the facsimile unit 10, the parameters of the command received via the interface control circuit 21 are sent to the modulation/demodulation (modem) circuit 15 via the input/output (Ilo) 16.
and transmits it to the other party's device as a reception command signal (TSI, DCS).

■ After sending the reception command signals (TSl, DCS), the facsimile unit 10 controls the modem circuits 1-5 and sends the training signal (TCP) to the destination device 1.
Check the line status.

■ The other device has 9 lines in good condition and cannot receive the command signal (
If the message can be received with the capability indicated by 'Fs I, DCS), a pre-message response signal (CFR) is returned. The facsimile unit 10 sends a message +'+il response signal (
CF R), a status signal (STB) is sent to the personal computer section 30.

Notification is made via the input/output circuit (Ilo) 16. The status signal (STB) is used as a signal indicating completion of reception by the other party's device, and notifies the personal computer section 30 of the parameters of the two-picture signal request (PIX REQUEST).

■ When the personal computer section 30 receives the notification of the parameters of the 9-picture (PIX REQUEST), it transfers a command (CTB) indicating a 1-document signal to the facsimile section 10, and subsequently sends a character code signal (p r
x) is transferred to the facsimile section 10. Documents consisting of character codes are sequentially converted into facsimile image signals by extracting the character font corresponding to the one-character code from the kanji ROM 22 and inputting it into the one-character code/pattern conversion circuit (C/P conversion) 23. The converted facsimile image signal is input to the central processing circuit (CPU) 19 and encoded, and then sent to the input/output circuit (Ilo) 16 and the modulation/demodulation (
The data is transferred to the other party's facsimile machine via the modem (modem) circuit 15.

At this time, if it is necessary to transfer image signals of multiple pages to the personal computer unit 30 or change the mode from standard resolution to high resolution, etc., the parameters are included in the command (CTB) and transferred. When the transmission from the personal computer section 30 is the last page, the facsimile section 10 transmits an after-message command (EOP) signal to the other party's device, and a post-message response signal (MCF) which is a response signal to the after-message command signal. receive.

The facsimile unit 10 sends a message indicating that the image signal has been transmitted normally.
Using the status signal (STB),
GE END), the Nozeichi Sonal Computer Department 30 is notified.

Through the operations described above, the facsimile reading/recording section and X control section (NCU) can be accessed from the personal computer.
, the communication control section of the modem section 1 is controlled. When transmitting documents created on a personal computer by facsimile, the facsimile machine has a built-in kanji ROM (memory).

The character code is transferred from the personal computer to the facsimile machine, and the image signal converted from text to facsimile signal is encoded within the facsimile machine and sent to the other party's facsimile machine. As a result, high-quality facsimile communication services are realized.

(5) Detailed Description of the Invention According to the second invention, when a document created on a personal computer is transmitted by facsimile,
By transferring the character code from the personal computer to the facsimile machine and using the kanji ROM (memory) built into the facsimile machine, it is possible to encode the image signal converted from text to facsimile signal inside the facsimile machine and send it to the other party's facsimile machine. Therefore, it is possible to realize a high quality facsimile communication service.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an apparatus according to the present invention. FIG. 2 is a sequence diagram for explaining the operation of the device shown in FIG. 1, and FIG. 3 is a sequence diagram for explaining the operation of the device shown in FIG.
FIG. 3 is a diagram for comparing the received recorded image side (A) in which character codes and patterns have been converted using OM and the received recorded image side (B) in which character codes and patterns have been converted using a Kanji ROM built in the facsimile. In the figure, 10 is a facsimile section, and 11 is a telephone line. 12 is a network control circuit; 13 is a telephone circuit; 14 is an automatic incoming call detection/automatic dialing circuit; 15 is a modem circuit;
6 is an input/output circuit (Ilo), 17 is a reading circuit, 18
is a recording circuit, 19 is a central processing circuit (CPU), 20
21 is a memory circuit (ROM/RAM) and an interface control circuit. 22 is a kanji ROM, 23 is a character code/pattern conversion circuit (C/P conversion), 30 is a personal computer section, 31 is a PC system section, 32 is a disk section, 33 is a display section, and 34 is an interface system. T11 circuit, 3
5 is a Kanji ROM included in the personal computer system. The name of the movement of August on the tree is also Meigetsu sequence diagram 2

Claims (1)

[Claims] In a personal computer/facsimile device in which a personal computer and a facsimile are connected, the facsimile has a control signal transmitting/receiving means, an automatic calling means, an automatic incoming call detecting means, an image signal transmitting/receiving means, and an image signal transmitting/receiving means. It is equipped with a reading/recording means, a kanji memory, a character code/pattern converting means, and a means for connecting with the personal computer, and under the control of the personal computer, transmitting operations, information attributes stored in the personal computer, etc. Notification operation, notification operation of the reception capability of the other device, transmission operation with matching information attributes between the other device and the own device, character code transfer operation, character code/character code using kanji memory
A personal computer/facsimile communication system characterized by comprising means for controlling pattern conversion operations and facsimile encoding operations.