JPS6231252A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To speed up a reading speed and a shifting speed of an original by providing plural line scanning function parts at a reading part. CONSTITUTION:A reading part 2 has three line scanning units A, B and C. An original 3 is inputted by an operator, and shifted in the (F) direction of an arrow by the conveying means not shown in the figure. The picture data read by the reading part 2 are stored to a memory part 4 at the line unit, and the processing such as the arrangement conversion, editing, etc., of the scanning line is executed. When reading is executed by a line scanning unit A only, the 1/3 speed is obtained when three scanning lines are simultaneously read by three line scanning units A, B and C.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile device, and more particularly to a facsimile device that is capable of speeding up document reading.

[Conventional technology]

The pixel data obtained by scanning is sequentially stored in a storage memory or sequentially encoded.

[Problem that the invention seeks to solve]

The conventional facsimile machine described above has only one unit that performs line scanning, and reads pixel data line by line in the scanning direction of the document. The reading speed is slow compared to the processing speed of the facsimile, which is a drawback of limiting the throughput of the facsimile machine.

[Means for solving problems]

The facsimile device of the present invention includes a reading unit comprising a plurality of scanning units each reading and scanning one line of document information to obtain pixel data, and storing pixel data of a plurality of lines obtained by simultaneous scanning of the scanning units on a line-by-line basis. It has all the storage means and equipment you need.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a perspective view showing the main parts of a facsimile machine according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing the principle of this embodiment.

This embodiment includes a facsimile main body 1, a reading section 2, a document 3, and a memory section 4. The reading section 2 is the facsimile main body l.
C0D (I
It is composed of IF cargo coupling resistors), etc. In this embodiment, the reading section 2 includes three line scanning units) A, B, and C4.
- have. The document 3 is inputted by the operator and is moved in the direction indicated by the arrow F by a transport means (not shown). Memory section 4
is used to store the pixel take read by the reading section 2 in units of lines.

Next, the principle of this embodiment will be explained with reference to Figure 2.

Lowercase alphabets a, b, temporarily added on manuscript 3
c corresponds to one reading line.

The line scanning units i of the reading section 2 are A and B, respectively.

C, and the read line lines read by each line scanning unit are a, b, and c, respectively. It is also assumed that reading by each line scanning unit A, B, and C is performed simultaneously. At this time, if 琥 is the reading frequency of part 2 f and the total linear density of the check line is S, then the moving speed V of the original 3 is v
=3s−f.

Here, the line scanning unit A whose reading frequency f is equal to
If a similar reading is performed with only 1, then v=s−f. This consists of three line scanning units l-A, B, and C.
The speed is 173 when three scanning lines are read simultaneously.

Generally, the number of simultaneous scanning lines is j, and the line density of reading lines is 5.
Letting the % reading frequency be f, the moving speed V of the document is expressed by the following equation.

v = j −s −f In other words, the moving speed of the document is proportional to the number of simultaneous scanning lines.

Moreover, the interval 1 between the line scanning units A and B1 and between the line scanning units B and C at this time may be set as follows.

Further, the pixel data read by the reading unit 2 is stored line by line in the memory unit 4, and processing such as array conversion and editing of scanning lines is performed.

In this embodiment, all cases where the number of line scanning units of the reading section 2 is three are shown, but this is not particularly limited as long as it is two or more.

〔Effect of the invention〕

As described above, the present invention has the effect of increasing the reading speed and moving speed of the document by providing a plurality of line scanning functional parts in the reading section.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the main parts of a facsimile machine according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing the principle of this embodiment. 1...Facsimile body, 2...Reading section, 3...
Manuscript, 4...memory section.

Claims (1)

[Claims] A reading device comprising a plurality of scanning units each reading and scanning one line of document information to obtain pixel data, and a storage device storing, line by line, the plurality of lines of pixel data obtained by simultaneous scanning of the scanning units. A facsimile device featuring: