JPS6314566A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To surely detect a blank paper surface input, when the blank paper surface input of an original is generated due to the misoperation of a transmission side, by counting the variation point of an image signal in the decoding device of a reception side. CONSTITUTION:When a facsimile image starting command is received, a communication control unit CCU 1 informs a facsimile coding start to an MPU 5, and the MPU 5 informs a decoding start to a decoding device 2. When coded facsimile image information is received actually, the device 2 counts the variation point of the image information and executes decoding. When an image end command is received, the CC 1 informs it to the MPU 5, and the MPU 5 informs an end confirmation to the device 2. The MPU 5 checks the number of times of the variation point from the device 2, and when the variation point is '0', error information due to a blank paper detection is sent back as an end confirmation answer to a transmission side through the CCU 1 by the MPU 5.

Description

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

[Prior Art] A conventional facsimile device normally completes communication unless an error occurs in the reception protocol itself or the reception image encoding method itself. Therefore, in the conventional device described above, even if the received image is a blank page, the sending side cannot know this phenomenon.In other words, even if the sending side inputs the blank page of the original due to an operational error, There is a problem that it is not possible to detect the sending example.

[Object of the Invention] The present invention has been made by focusing on the problems of the conventional device described above, and is aimed at reliably detecting blank page input when a blank page of a document is input due to an operational error on the sending side. The purpose of this invention is to provide a facsimile device that can perform the following functions.

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

In this embodiment, a communication control unit (rCCUJ
) 1, a decoding device 2 in the facsimile encoding system, a received image output memory 3, a received image output device 4, and a microprocessor for controlling the overall operation.
(hereinafter referred to as rMPUj) 5.

Here, the MPU 5 is an example of means for notifying the transmitting side that there is no change point when there is no change point in the facsimile encoded signal for one page.

FIG. 2 is a diagram showing a transmission/reception protocol in the above embodiment. Further, FIG. 3 is a flowchart showing the reception control operation in the above embodiment.

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

In protocol P1 shown in FIG. 2, upon receiving a facsimile image start command, CCU 1
The MPU 5 notifies the start of facsimile code decoding to
Notify the decoding device 2 of the start of decoding. Then, in protocol P2, the actually encoded facsimile image information is received, and the decoding device 2 decodes it while counting the change points of the image information (S1) and receives the output image data. Transfer to output memory 3.

Next, in protocol P3, when the facsimile image end command is received, the CCT 11 notifies the MPU 5, and the MPU 5 notifies the decoding device 2 of the end confirmation (S
3).

Then, the MPU 5 is informed of the number of the above-mentioned change points from the decoding device 2, and if the change point is 0 (S4), the MPU 5 sends error information due to blank page detection to the CCUI as an end confirmation response.
The MPU 5 sends it back to the sending side via (S5).

On the other hand, if the number of change points is not O, a communication image output request is sent from the MPU 5 to the output device 4 (S6) and a normal response is returned (S7) in the same manner as in the conventional procedure.

In the above embodiment, the decoding device 2 counts the changing points of the image signal, and can detect blank page reception based on the number of changing points of the image signal. That is, when the change point of the image signal cannot be counted, the sending side is notified that the change point has not been detected, thereby notifying the transmitting side that a blank page has been received. Then, when the sending side recognizes that a blank page has been sent, it is possible to prevent future blank page sending due to operator error. Furthermore, the operational error on the sending side associated with the above-mentioned blank paper transmission becomes clear.

[Effects of the Invention] According to the present invention, when a blank page of a document is input due to an operational error on the transmitting side, this blank page input can be reliably detected. “

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 2 is a diagram showing a transmission/reception protocol in the above embodiment. FIG. 3 is a flowchart showing the reception control operation in the above embodiment. 1...CCU. 2...Decoding device, 4...Output device, 5...MPU. Agent Arata Yokubo - Figure 2

Claims (1)

[Claims] The facsimile coded signal is decoded, and when there is no change point of the image signal in the facsimile coded signal for one page, the receiving side notifies the sender that there is no change point. facsimile machine.