JPS6346864A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To reduce an unnecessary recording time by controlling the recording time and the subscanning time in accordance with the number of recording picture elements of a decoded picture signal corresponding to one line. CONSTITUTION:A transmitted encoded picture signal is decoded by a decoding part 1, and the recording time is determined by a recording time determining part 2 in accordance with the number of recording picture elements of one line of the decoded picture signal and is reported to a recording part 4. A subscanning control part 3 is started at the determined recording time to control the subscanning time of a recording paper in every line. Thus, the unnecessary recording time is shortened to quickly perform recording, and the transmission time is reduced to reduce the communication cost.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to facsimile devices.

[Conventional technology]

Currently, many facsimile apparatuses use a recording method in which the recording time required for recording depends on the quality of the recorded image. For example, in the heat recording method, the time required for recording increases when there are many black parts in the image signal, and decreases when there are many white parts.

However, in conventional facsimile machines, the recording section and the recording paper sub-scanning control section cannot know in advance the time required for recording, so they can use any image signal that may be input. The longest recording time was taken as the nominal recording time required by the recording section, and the sub-scanning time of the recording paper was also set to a value corresponding to this.

[Problem that the invention seeks to solve]

In the above-mentioned conventional facsimile machine, even when recording an image signal that can be recorded in a shorter recording time than the nominal recording time, the recording section and the sub-scanning control section of the recording paper operate only for the specified nominal recording time. Since recording takes time, there are problems in that the recording time becomes long and the communication cost increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a facsimile apparatus that can reduce communication costs by requiring a recording time that is adapted to image signals.

[Means for solving problems]

The facsimile device of the present invention includes a decoding unit that decodes an encoded image signal and outputs an image signal, and a recording time for one line that is determined according to the number of recording pixels that constitute the image signal corresponding to one line. The apparatus includes a recording time determining section, a sub-scanning control section that changes the sub-scanning time of the recording paper for the line according to the recording time, and a recording section that records the line at the recording time.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

In FIG. 1, 1 is a decoding section, 2 is a recording time determining section,
3 is a sub-scanning control section, and 4 is a recording section.

As shown in FIG. 1, a received encoded image signal 5 is input to a decoding section 1. As shown in FIG. The decoding section 1 decodes the input encoded image signal 5 and sends it to the recording time determining section 2 as an image signal 6 line by line.

The recording time determining unit 2 counts the number of black pixels included in the input image signal 6, compares the count result with a preset reference value, and determines the number of pixels necessary to record the line according to the comparison result. Selects a recording time and outputs it as a recording time notification signal 7 to the sub-scanning control section 3 and the recording section 4, and at the same time supplies the image signal of that line to the recording section 4 as an image signal 8 for one line. .

Note that it is possible to set not one but a plurality of reference values, and when the counting result is greater than, equal to, or smaller than the set reference value, the corresponding recording time is set.

The sub-scanning control unit 3 performs sub-scanning of one line of recording paper for the time specified by the input recording time notification signal 7.

At the same time, the recording section 4 records one line of image signals 8 for the time specified by the input recording time notification signal 7.

〔Effect of the invention〕

As explained above, the facsimile apparatus of the present invention reduces wasteful recording time and speeds up recording by controlling the recording time and sub-scanning time according to the content of the image signal for each line. Since the transmission time can be shortened, communication costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention. 1... Decoding section, 2... Recording time determining section, 3...
Sub-scanning control unit, 4... Recording unit, 5... Encoded image signal, 6... Image signal, 7... Recording time notification signal, 8...
・Picture signal.

Claims (1)

[Claims] a decoding unit that decodes the encoded image signal and outputs the image signal; a recording time determining unit that determines the recording time of the line according to the number of recording pixels constituting the image signal corresponding to one line; A facsimile apparatus comprising: a sub-scanning control section that changes a sub-scanning time of recording paper for the line according to a recording time; and a recording section that records the line at the recording time.