JPS6335043A - Information communication equipment for digital image print - Google Patents

Abstract

PURPOSE:To improve the quality of picture and character to be received while eliminating the deviation of synchronization by sending a signal while a parallel signal is converted into a serial signal without fail. CONSTITUTION:A sending computer 11 at the transmission side gives a paralleled data comprising picture elements to a serial/parallel data conversion controller 12. The serial/parallel data conversion controller 12 converts a parallel data into a serial data in case of transmission and sends the result to a sender MODEM. The converted serial data is sent to a transmission side line terminator 14 from the MODEM and sent to a MODEM 14' and the receiver side line terminator via a communication line 15. Then the serial data outputted from the line terminator and the MODEM 14' is sent to the serial/parallel data conversion controller 12', where the data is converted into the parallel data and sent directly to a receiver side printer 13', where the data is printed out.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for transmitting and receiving images and/or characters, and is intended to improve as much as possible the problems of this type of conventional technology, such as unclearness, high communication costs and equipment costs, etc. The present invention relates to a new digital information communication device that is capable of transmitting and receiving images, nine characters, etc. clearly and at low cost without using a terminal device including a computer on the receiving side.

[Prior Art] Generally, in order to transmit print data output from a computer or a word processor with communication LA capability to a remote receiving end, the print data is sent from the sending end computer to the receiving end computer through a general communication line. etc. and output it to the receiving printer. In the prior art, specific methods include facsimile communication, telex communication, and personal computer communication.

In facsimile communication, an original image is scanned, converted into an electrical signal, and transmitted synchronously via a transmission line of a communication line, and the received still image is reproduced by scanning again on the receiving side. Telex communication uses a combination of fixed digital pulse signals to transmit only limited character codes such as alphabets, numbers, and kana characters, and the transmission and reception speed is 1:1, so there is no so-called "waiting". be. Computer communication is a method of transmitting defined characters, figures, etc. according to a certain protocol, and printing them out on the receiving side. For example, Figure 5 shows a system that prints out the output of a conventional sending computer to a distant receiving location. FIG. Fifth
In the figure, the print output of the sending computer 52 is sent to the sending printer 51, simultaneously sent to the modem and line connection device 2153, and further sent to the receiving side via the communication line 54, where it is printed by the receiving printer 51'. be outed. That is, a data signal programmed on the sending side according to the protocol for the sending/receiving connection is received on the receiving side, processed within the computer 52', and output to the receiving side printer 51'.

On the other hand, there is a printing device, ie, a printer, which serves as a hard copy of characters or figures of information output from a computer.

Image formation in hard copies involves scanning on the receiving side in synchronization with the sending scan, typified by facsimile machines, to form characters and figures, and a collection of pixels, typified by electronic printers or word processors. There are two types: pixel shapes that form characters and figures, and character shapes that are typified by typewriters.

[Problems to be Solved by the Invention: Objects of the Invention] However, in the facsimile communication system, since the transmission means first performs scanning as a method of decomposing the image to be transmitted into pixels, mechanical vibrations often occur. Furthermore, when using cylindrical scanning, rotational irregularities often occur, and due to these causes, even if the drawings and characters are clear on the sending side, the received drawings are blurred in places and the characters are often unclear. Therefore, up until now, in this type of communication, in Japan, for example, it is often necessary to discuss over the phone about unclear parts of drawings or text, and when this happens in a foreign country, it is often necessary to discuss by fax. Be sure to use RegiStar afterwards
The problem is that the ambiguity is compensated for by sending and receiving ed & Express 1etter, etc., and the cost and effort are doubled.

In addition, the telex system is normally used to send and receive only text, but this method uses a combination of digital pulse signals of limited characters such as alphabets (/), numbers, Greek letters, etc., so the receiving printer can Although the text is not blurred, it is not possible to send images, and the content of communication is often limited.

Next, a personal computer communication method is known as one of the conventional technologies, and although it is possible to send and receive images and characters clearly, this requires expensive computers or hardware to be installed on both the sending and receiving sides. A processing program is required between the data protocols (transmission procedures) between computers, and it is not possible to output a printed message from the sending side to the printing device on the receiving side with just a simple connection, much less a computer, or terminal 9
In the case of 21 different models, many processing programs are required to realize this.

In other words, the purpose of the present invention is to transmit the print output of a computer, etc. to a near and far receiving site via a communication line while eliminating the effects of vibration and synchronization, and to transmit the print output of a computer, etc. to a near and far receiving site via a communication line, and to transmit the print output of a computer, etc. It is an object of the present invention to provide a digital image information communication table that allows printing of a clear image (letters are also a type of image) without using it.

[Structure of the present invention: Means for solving the problems] In order to solve the above-mentioned problems as much as possible, the present invention provides a computer used at the time of transmission, as expressed by the summary of the claims. A serial-to-parallel data mutual conversion control device is installed between the 1,000 dem and the modem and the receiving printer on the receiving side. After converting the parallel data to serial data, the modem modulates the data and connects it to the general communication line. The system is configured to transmit data via a modem, demodulate it using a modem on the receiving side, convert the serial data into parallel data again, and print out clear images and characters without using a computer (except for the microchip controller). Created.

[Examples] The present invention will be described in more detail below with reference to illustrated embodiments.

ff1llN is a diagram showing an overall example of the digital image printing information communication device of the present invention. On the transmitting side, a transmitting computer 11 sends parallel data by pixels to a serial 0 parallel data conversion control device 12 . In the case of transmission, this serial-to-parallel data conversion control unit 2112 converts parallel data into serial data and sends it to the modem on the transmitting side. At the same time, serial data converted to 0th order is transmitted from the parallel data to the transmitting side printer 13 so that the transmitted content can be monitored and recorded by the modem.
114, and then sent via communication line 15 to the line termination type on the receiving side and to modem 14°. Furthermore, the serial data output from the line terminal E3F21 and the modem 14' is sent to the serial → parallel data conversion control table 2212', where it is converted into parallel data, and then directly sent to the receiving printer 13' to be printed out. be done. Therefore, receive C
In this case, the computer 11° can be omitted. By equipping each of the above 92ff with both the transmitting system function and the receiving system function, the transmitting computer tt' can also be used as shown by the dotted line in FIG. By connecting to the side, it becomes possible to send and receive clear image (including text) print information in both directions.

FIG. 2 is an explanatory diagram showing an outline of the serial-axis-parallel data conversion control device 2112 in the present invention. That is, this device is P
I, P2. It has three connectors P3, where PI is the input connector from the sending computer 1, P2 is the input/output connector with the line termination type 2114 for sending and receiving, and P3 is the output to the printer 3. It is a connector.

In this serial 0 parallel data conversion control unit 2112, two types of control are performed in addition to the conversion action. The first control is to form a print path from connector P1 to connector P3, and the print output signal from connector P1 and the busy signal from connector P3 are directly transmitted to connector P1.
An internal connection is formed between the connector 23 and the connector 23 so that transmission and reception can be performed. The second control is when the receiver becomes the connector P?
This is a control for forming a print path from connector P to connector pi. This structure controls the conversion of data received by the serial data into parallel data and transmits the data to the connector P3.

Further, the cable 20 and the cable 22 are of the same electrical and physical standard, and as shown in Table 1, for example,
A bit-parallel code based on the Centronics standard is used.

Table 1 1, Data Strope PSTB2, Databee, To OPDB 0 3, y l tt15, tt
3 //36, // 4
//47, tr 5 /15
B, tt 5 tr69, //
7 tt711, busy
BUSY17, common GND13
, common GND [data bit θ~
7" is a Jlltll degree code, "datastrope" is a two-character signal, and "busy" is a control signal indicating the printer 13's reception busy state.

On the other hand, serial 4 + parallel data converter 12, modem and line termination? Cable 21 connecting with cfi14 is R3-2
32C cable and is represented by the signal lines shown in Table 2.

Here r D T E : data terminal
Equipment 4 means a serial-O-parallel data conversion control device 12, r D CE : data cable
e equipment J means a modem and a line termination device 14.

Table 2 DTE 0CE 1, Safety ground FG Q+2, Transmission data SD → 3, Reception data RD ← 4, Transmission request R5 → 5, Transmission possible C5 ← 6, Data hit resolution (DR ← 7, Common for signals @SG 4+8・Reception half-way? Detection CD-20, data terminal ready ER→22, call display CI
←25, Test display TI ←Interface standards comply with CCITT (International Telegraph and Telephone Consultative Committee) standards and JIS.

When transmitting data and receiving data are sent as serial signals over one communication line, one character usually consists of an 11-bit pulse signal consisting of 8 bits, parity bits, start bits, and stop bits. Also by other control signals.

Control is performed between the serial 44 parallel data conversion control unit 12 and the modem and line termination equipment Zi 1 4 under predetermined conditions.

FIG. 3 is a block diagram showing the internal configuration of the serial-axis-parallel data conversion control device 12 in the present invention. Figure 3 (A)
is a block diagram of the transmission system of the conversion control device 12, and FIG. The transmission system in FIG. 3(A) consists of connectors Pl and P7, a shift register and connector PI for converting parallel data into serial data, a shift register 31, and a first control circuit 32 for controlling connector P/. The receiving system shown in FIG. 2(B) includes connectors P2 and P3, a shift register 40 for f-checking serial data into parallel data,
Temporary storage register 41 for temporarily storing parallel data in multiple units. and connector P2, temporary storage register 41,
and a second control circuit 42 that controls the connector P3. The first control circuit 32 and the control circuit 42 of f:jS2 can be configured integrally. FIG. 4 is a timing chart illustrating the operation of the digital image printing information communication apparatus of the present invention. In Fig. 4, C1 is the line ta system,
C2 is the carrier output from the modem and line termination device 2114 on the transmitting side, and C3 is the modem and line termination device on the receiving side.
114 indicates carrier reception, C4 indicates a control message and print data on the transmitting side, and C5 indicates a control message on the receiving side.

Next, with reference to FIGS. 1, 3, and 4, the operation of the digital image print information communication system for unissued 11 will be explained.

The equipment that sends and receives data is the modem and line terminal equipment 2.
114 is determined between each other by transmitting and receiving carriers (
C1* C2e C3) *First, connector P on the sending side
A data strobe signal 33 is sent from I to the first control circuit 32.
4, the sending side sends a request message 38 to the receiving side requesting transmission to inform the status of whether or not the printer 13' on the receiving side is in a ready state (T in the time chart of FIG. 4). On the receiving side, if all the receiving conditions are met, the control circuit 42 sends a receiving side ready status message 44 indicating that the receiving conditions have been confirmed to the transmitting side (R in the time chart of Fig. 4). When the receiving side ready status message 37 is received, the (first) control circuit 32 causes the shift register 31 to sequentially transmit the serial print data (D in the time chart in FIG. 4) 0
Next, the transmission side shift register 31 converts the parallel data 35 from the connector P1 into serial data 36. The receiving side (second) control circuit 42 separates the serial reception data 43 sent from the connector P2 in signal units, sets a buffer in the temporary storage register 41, and transfers the parallel data in the temporary storage register 41 to the connector P3. The shift register 40 performs control such as transmitting the data or monitoring the busy status f5 of the connector P3. Output. Second control) external circuit 42
The control circuit 42 sends parallel data 49 from the temporary storage register 41 to the connector P3 when the connector P3 is not busy, and performs wait control when the connector P3 is busy. A control signal 46 to be set in the register 41 is sent to the temporary storage register 41, and when the connector P3 is not busy, data for one unit of the temporary storage register 41 is sent to the connector P.
A control signal 47 to be sent to connector P3 is sent to connector P3. If it is busy, a busy signal 48 is sent to the control circuit 42.

The received data 43 is stored in the temporary storage register 41, and a busy status message 44 is sent to the transmitting side (time chart B in FIG. 4).

The transmitting side receives this busy status message 37 and sends a busy signal 34 from the control circuit 32 to the connector l to inform the transmitting computer 11, which is the data transmission source, that the printer 13' on the receiving side is busy. After that, when the busy status of the printer 13' on the receiving side is released, a ready message 44 is sent from the receiving side to the sending side (time chart R in Fig. 4), and print data is sent again from the sending side (see Fig. 4). Figure 4 Time chart, D
) In this way, when the print data transmission is completed, the communication line is turned off (Figure 4 Time Chart C+
).

[Effects of the Invention] The digital image printing information communication device of the present invention uses the method actually used in general communication xa, 5T, as follows.
It has the effect of having a very large influence on 21.

(1) Conventional facsimile communication customer parallel data transmission causes synchronization lag, which causes the images and characters to become unclear, resulting in the above-mentioned major disadvantages. However, with the present invention, parallel data is always converted to serial data before transmission, so synchronization is lost. There will be no discrepancies, and the images and text received will be clearer. Therefore, there is no need to make a telephone call after sending the message, or to have to send it by registered express mail, thereby eliminating the need for double labor and expense, and there is no need to delay the deadline for confirmation, which has the tremendous effect of eliminating the need.

(2) Furthermore, since there is no mechanical vibration in the transmission and reception of the present invention, the transmitted image (including characters) etc. are clearly hard-copied to the receiving side, so that the same great effect as in (1) can be obtained.

(3) Since the system of the present invention does not require the use of a computer (except for the microchip controller) on the receiving side, it can be used for other tasks except when transmitting.

Since computers are expensive, the economic effect is also large.
Communication costs will also be significantly lower.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the overall configuration of the digital image print information communication product manufactured by Unreleased II, FIG. 2 is a diagram showing an outline of the serial-to-parallel data conversion control device 12 in the present invention, and FIG. 3(B) is a block diagram showing the transmitting system in the content structure of the Ht string data conversion control Sc device, FIG. 3(B) is a block diagram showing the receiving system as well, FIG. Figure 5 is a configuration diagram of a system for printing out to a distant receiving side using conventional computer communication. 11... Sending computer. 12...Series 4+parallel data conversion control device. 13-... Sending side printer, 13'... Receiving side printer 14... Modem and line termination x location. PI, P7. Pl...-Connector. 20.21.22... Connection cable. 31...Transmission side (system) shift register. 32... Transmission side (system) (first) control circuit. 40 -- Receiving side (system) shift register. 41... Receiving side (system) temporary storage register. 42... Receiving side (system) (second) control circuit. 51... Sending side printer. 52...Sending computer.

Claims (2)

[Claims] (1) In an information printing communication device that transmits the output from the transmitting video decomposition means to the receiving side via a communication line and prints it out, on the transmitting side, parallel digital output of the printout information of the transmitting computer or word processor is performed. The data is converted into serial data by a serial/parallel data conversion control device, and then input to a modem and transmitted via a communication line.On the receiving side, the information received via the communication line is input to the modem and transmitted from the modem. A digital image printing information communication device characterized in that outputted serial data is converted into parallel digital output by a serial/parallel data conversion control device and printed out. (2) a first connector to which the serial-to-parallel data conversion control device connects parallel data from the printout information of the transmitting computer or word processor and provides a data strobe signal to the first control circuit; A shift register that converts parallel data from the connector into serial data, a second connector that connects the serial data to a line termination device, and controls conversion in the shift register in character signal units and sends a status request signal to the receiving side. a transmission system function comprising a first control circuit that monitors the busy status of the line terminal and controls the first connector; a second connector that connects and inputs serial data received from the line termination device; a shift register that converts serial data received from the connector into parallel data; a temporary storage register that stores a large number of parallel data from the shift register; a third connector that connects the output of the temporary storage register to a receiving printer; Separating the serial data received by the second connector in character signal units, controlling the buffer set or output of the temporary storage register, and controlling the buffer set or output of the temporary storage register.
a receiving system function comprising a second control circuit that monitors the busy state of the connector and notifies the transmitting side via the second connector; Image print information communication device.