JPS6115649Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a phase display device for displaying each phase of a transmission control procedure on a display element in facsimile communication.

In general, facsimile devices that transmit image information using communication lines currently have two transmission methods:
There are various methods for transmission speed, etc., and communication is almost impossible between devices of different models, and even the same model has various communication functions (modulation method, transmission speed, linear density, etc.), so facsimile communication Prior to this, both transmitting and receiving devices must confirm the functions they possess and decide which method to use for communication. This series of procedures is called a facsimile transmission procedure, and each step is called a phase. This procedure is an essential condition for facsimile communication, and is usually divided into five phases A to E.

The phases are named A=call setup, B=pre-message procedure, C=message procedure, D=post-message procedure, and E=call recovery. Furthermore, each phase is divided into signal units that represent a certain meaning within the phase. However, not all of these signals and phases are used, but they are used in appropriate combinations for each model of feximir. Figure 1 shows an example of the G standard procedure recommended by CCITT, which is considered to be the most standard of the various procedures. The meaning of each signal is as follows.

CED: Indicates that the receiver is connected to the line.

GI: The receiver indicates to the transmitter the group to which it belongs.

GC: Indicates the group that the transmitter intends to send to the receiver.

PHS: Training signal for phase synchronization between transmitter and receiver. CFR: Indicates that the receiver is synchronized with the transmitter.

MESSAGE: Image signal of the original to be transmitted EOM: Indicates the end of one document from the transmitter.

MCF: Indicates that message reception has been completed from the receiver.

Conventionally, there has been no device that displays the status of each phase of a transmission control procedure.

The present invention uses a display element that allows a facsimile user to directly, easily and quickly grasp the status of each phase of the transmission procedure in facsimile communication and the transmission/reception status of various tonal signals within each phase. Its purpose is to allow the user to easily grasp the operating status of the device, and also to make inspection and adjustment much easier than before during maintenance, thereby increasing work efficiency.

FIG. 2 shows an embodiment of the present invention, and shows an example of the configuration of the present invention in a transmitter of a facsimile machine. To explain the operation below, the image signal converted into an electric signal by the photoelectric conversion unit 1 is sent to the modulation unit 2.
The signal is modulated by the sequence controller 3 and sent from the mixer 4 to the line via the line controller 5 according to a command from the sequence controller 3. Further, the sequence control section 3 inputs the various tonal signals received from the frequency detection section 7, checks them together with the signals from each facsimile section, and determines the next operation. These are some of the basic operations of a facsimile machine, but the present invention converts the various command signals 9 of the sequence control section 3 into a so-called data bus format and further encodes them to the command decoding section 10 of the output destination. , and instructs various tonal signal generators 11 to send tonal signals as appropriate, and sends the tonal signals to the line. Furthermore, various command signals 9 are sent to the signal decoder 12 at the same time as they are sent to the command decoder 10 . This signal decoding section 12 decodes a tonal signal from its own device or a receiver, and outputs a signal so as to be displayed in accordance with the phase state of the tonal signal. The display indicating the status of each phase is converted into a display format that can be directly understood by the user, and is displayed on, for example, the 7-segment display element 13. As a display example, if a 7-segment display element is used, phase A = "0", phase B = "1",
Same C = "2", Same D = "4", Same E = "5", Abnormality =
"6" etc. may be used, and if a dot matrix display element is used, phase A="A", phase B="B", etc.
Same C = “C”, Same D = “D”, Same E = “E”, Abnormality =
Display methods such as "X" are also possible. Furthermore, when the machine is sending out some kind of signal, the decoder 12 can decode various tonal signal sending commands, and the 7-segment display element or its decimal point 14 can be lit for display. Although a 7-segment display element is used as the display element for each phase, any display element that can recognize each phase may be used.For example, the status of each phase can be output from a sound source, or a multi-colored light emitting element can be used. Of course, it is possible to recognize it. Furthermore, although the embodiments of the present invention have been explained using a facsimile transmitter, it goes without saying that the present invention can also be applied to a receiver or a transmitter/receiver.

As explained above, the present invention allows the user of the facsimile device to directly grasp the various operating states of the facsimile device, making it possible to significantly improve work efficiency in inspection and adjustment compared to conventional methods. . This is a situation in which the phases in the transmission control procedure of a facsimile device are increased from the simple five phases A to E used in the explanation, namely A, A', B, B', C, C',
This is more effective if it is divided into many phases such as D, D', E, TEST, PIS (interrupt command reception), etc. In addition, with this invention, the user can easily grasp the transition of the operating state by simply following the progress of each phase with his or her eyes.
It can be confirmed whether the communication has been completed. In addition, during inspection, by simply paying attention to these displays, it is possible to quickly discover in which phase an abnormality is occurring.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of a standard facsimile transmission control procedure, and FIG. 2 is a block diagram showing a phase display device in an embodiment of the present invention. 13...7 segment display element, 14...decimal point.

Claims (1)

[Scope of utility model registration request] A control unit that controls the operation of the facsimile device using encoded command signals, a signal decoding unit that decodes the command signal output by the control unit, and a display unit that indicates the phase state of the signal decoded by the signal decoding unit. A phase display device comprising: