JPS62114371A - Communication equipment - Google Patents

Abstract

PURPOSE:To judge an original transmission original size at a reception side by communication a bit of information for an original size at a transmission side with the bit of information for a recording size at the reception side, and synthesizing and transmitting the bit of information for a reduction size at the reception side against the original size on both signals. CONSTITUTION:First of all, the reception side outputs a digital identification signal (DIS), and at the DIS, a bit of information with the maximum recording size is included. When a facsimile equipment at the reception side receives the DIS, it waits a reception instruction fitting a width at the same width as that of an opposite original. In a message transmission, the width of the original is detected, and a character corresponding to the bit of information with the maximum recording size included in the DIS and the character corresponding to a transmission original size are loaded from a ROM 3, and each character and both signals are synthesized on a picture data buffer RAM 4. A synthesized picture signal is encoded, and is accumulated at a transmission data buffer RAM 5, then being transmitted in order. Thus, the original transmission original size can be recognized at the reception side.

Description

[Detailed description of the invention] [Industrial application field] TECHNICAL FIELD The present invention relates to a communication device.

[Sub*tk Technique] Conventional devices that perform image communication, such as facsimile machines, read a document on the sending side and convert it into an image signal, and send both signals to the receiving side via a line.
Image information is expressed by +1G on a predetermined recording paper.

Furthermore, in conventional facsimile machines, when the size of the recording paper is smaller than the document size, the image is reproduced by reducing the image by a predetermined reduction ratio.

On the other hand, if the original size and the recorded size are the same, or if the original size is smaller than the recording paper size,
The image is reproduced on recording paper at the same magnification without making any adjustments.

Therefore, there is a mixture of cases where image information is reproduced at the same size and cases where it is reproduced at reduced size, and the receiving side has to judge whether or not the recorded size is the same as the original size (75). be.

[Purpose of the Invention] The present invention has been made by focusing on the problems in the conventional devices described above, and aims to provide a communication device that allows the receiving side to know the size of the document. .

[Embodiments of the invention] FIG. 1 is a block diagram showing an embodiment of the present invention.

The CPUI controls the system and performs signal data analysis, coding, decoding, etc. using the main control program on the ROMZ.

The reading system 11 has a COD and converts image data (serial data) read by the CCD into parallel data and outputs the parallel data.

The DMA controller 6 transfers both signals read by the reading system 11 to the RAM image data buffer 4 during transmission. Further, the document width sensor 8 is a sensor that detects the size of the document to be transmitted. The sensor group 9 includes a document trailing edge detection sensor, a recording paper top sensor, and the like. In addition, the P engineer 107 also uses the document sensor 8 or the sensor group 9.
It is used to access the state of

In addition, the above embodiment has an RO for a character generator.
M3. It has a RAM 5 for a transmission data buffer, a recording system IO, a drive system 12, a modem 13, an NCU 14, a main telephone 15, and a key display operation panel 16.

Next, the operation of the first embodiment will be explained.

FIG. 2 is a diagram showing communications r and Ill during transmission.

First, the receiving side outputs a DrS (digital identification signal) (DIS includes information on the maximum recording size), and when the sending side facsimile receives the DIS, the
Adjust to the same width as the original width of L (DIS declaration)
, waits for the reception command of DO3 (digital command signal) (A4
Read originals such as B4, 83, etc. for receivers with
(when you have to reduce it and send it).

Subsequently, after training and TCP (registration check), when a CFR (reception readiness confirmation signal) response is returned, the message transmission procedure shown in FIG. 3 is performed.

In the message transmission shown in FIG. 3, first, the document width is detected (31), and then the DrS sent from the receiving side
Load the characters corresponding to the maximum recording size information (receiving side recording paper size) included in 80M3 and the characters corresponding to the sending original size (S
2), and each character and both signals,
The signals are synthesized on the image data buffer γ RAM 4 to create a composite image signal (33).

This composite image signal is encoded and sent to the RA for transmission data buffer γ.
54), the training shown in Figure 2 (C
(Training after FH), then sequentially transmit (S5
), the above composite image signal is the same as the composite image signal shown in FIG. In other words, the composite image signal shown in FIG. 2 is a combination of a character of the size of the sending document and a character of the size of the recording paper on the receiving side with a normal image signal.

Then, a normal image signal (image information reduced to the recipient's recording paper size) is transmitted (3B), and the rest is the same as the conventional procedure.

FIG. 4 is a diagram showing an example of recording paper output by the receiving facsimile machine in the above embodiment. That is, a reduced display 51 is displayed in the northern part of the recording paper 50. In other words, in the case shown in Figure 4, the original size on the sending side is A3.
The image information from this document is transferred to a B4 on the receiving side.
This indicates that the image was recorded using the recording paper size of .

By doing this, on the receiving side, the size of the original transmitted document can be known at a glance.

In the explanation below, we will use the facsimile "A71" as an example.The transmitting side reads the image information, transmits the image information via the line to the receiving side, and the receiving side outputs it on recording paper. If so, the present invention can be applied to other communication products.

[Effects of the Invention] According to the present invention, the size of the original transmitted document can be known on the receiving side.

[Brief explanation of drawings]

:F, IV4 is a block diagram showing an embodiment of the present invention. FIG. 2 is a diagram showing the communication r order at the time of transmission in the two-legged embodiment. FIG. 3 is a flowchart showing the p order of message transmission in the above embodiment. FIG. 4 is a diagram showing an example of output paper on the receiving side in the above embodiment. 1...CPU, 3...ROM for character generator. 8... Original width sensor, 11... Reading system. Patent applicant Canon Co., Ltd. Figure 2 Figure 3

Claims (1)

[Claims] Communicate original size information on the transmitting side and recorded size information on the receiving side, detect the reduced size of the recorded size on the receiving side with respect to the original size, combine the information on the reduced size with an image signal, and transmit it. A communication device characterized by: