JPS6223942B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention converts date, sender, number of pages, etc. that are not written in the manuscript into image information and transmits it to the sending side.
Regarding improvements to the type of facsimile system that is written on the received copy, in particular, the size of the information added on the sending side will be changed depending on whether the receiving side facsimile is an analog facsimile or a digital facsimile. (G standard) uses large font, and digital facsimile (G standard) uses small font so that clear source identification information can always be obtained.

In the facsimile system, in which sender identification information such as date, sender, page number, etc., which is not written on the manuscript, is transmitted from the sending side and written on the received copy, conventionally, in at least one of the main and sub-scanning directions. However, in the above-mentioned conventional technology, the font size is changed according to the line density on the receiving side. As a result, even at the same linear density, digital facsimile (synchronous type) records the sender's identification information clearly, whereas analog facsimile (asynchronous type) makes it unclear.

The present invention has been made in order to eliminate the above-mentioned drawbacks of the prior art, and its purpose is to use small fonts in digital facsimile and large fonts in analog facsimile.
This allows clear source identification information to be obtained at all times.

FIG. 1 is a block diagram for explaining an example of an electric circuit used to implement the facsimile system according to the present invention. In the figure, 1 is a microcomputer (CPU), and 2 is a microcomputer program and characters. 3 is a read-only memory (ROM) that the generator stores, and 3 is a random access memory (RAM) that temporarily stores data necessary to operate the microcomputer.
1) and 4 are 1024 x 8-bit random access memory (RAM2), and microcomputer (CPU) 1 stores sender identification information such as sending time, sender, number of pages, etc. in read-only memory (ROM) 2.
A character generator therein decomposes the pixel into 5×7 dot pixels as shown in FIG. 2, and writes it into the random access memory (RAM2) 4 through the address bus AB and data bus DB. The information written to the random access memory (RAM2) 4 includes 7 bits of identification information and 1 bit of a valid signal indicating that the identification information is valid. When the valid signal is "1", the information written from the scanner 5 is Identification information is output instead of image information, and when it is "0", image information from the scanner 5 is output. Reading from random access memory (RAM2) 4 is performed by multiplexer 6.
4 is switched to the address from the column counter 8 for main scanning, and the row counter 10 causes the multiplexer 11 to perform sub-scanning. Note that the column multi-counter 7 and the row multi-counter 9 are used to change the magnification of characters in the main scanning direction and the sub-scanning direction, respectively.In the case of digital facsimile, they are used as 1/2 counters to double the size of the characters. , 1/4 for analog facsimile
quadruple the font size as a counter. This column multi-counter 7 counts the video clock from the scanner 5, which is output at a rate of one clock per pixel in the main scanning direction, and outputs the main scanning clock to the column counter 8. counts line synchronization signals from the scanner 5, which are output at a rate of one per pixel in the sub-scanning direction, and outputs a sub-scanning clock to the row counter 10. As mentioned above, one character is represented by 5 x 7 dots, but if you include the surrounding spaces, it becomes 7 x 9 dots, and the column counter 8 is made up of 1/1024 and the row counter 10 is made up of 1/9 counter. . The multiplexer 11 uses a row counter 10 to transfer 7 bits in the sub-scanning direction to a random access memory (RAM).
2) Output the signal from 4, and the remaining 2 bits output an empty signal (white) to output the pixel signal shown in Figure 2. In the case of digital facsimile, the pixel signal shown in Figure 2a is output.
The lowercase letters shown in , or in the case of an analog facsimile, the uppercase letters shown in FIG.

As is clear from the above description, according to the present invention, the sender identification information is written out on the received copy in small letters in the case of digital facsimile and in large letters in the case of analog facsimile. , clear source identification information can always be obtained.

[Brief explanation of the drawing]

FIG. 1 is a block diagram for explaining an example of an electric circuit in which a facsimile system according to the present invention is implemented, and FIG. 2 is a diagram showing an example of a pixel signal. 1... Microcomputer, 2... Read only memory, 3, 4... Random access memory, 5... Scanner, 6... Multiplexer,
7... Column multi-counter, 8... Column counter, 9... Row multi-counter, 10... Row counter, 11... Multiplexer.

Claims (1)

[Claims] 1 In a facsimile system in which sender identification information such as date, sender, number of pages, etc. that is not written on the manuscript is converted into image information on the sending side and then written on the received copy, the receiving facsimile is analog Depending on whether it is a facsimile or a digital facsimile, the font size of the sender identification information added on the sending side is made larger for analog facsimile and smaller for digital facsimile. A facsimile system characterized by