JPS61208975A - Facsimile equipment with picture information storing function - Google Patents

Abstract

PURPOSE:To eliminate temporary stopping of the scanning part in order, to shorten the scanning time and thereby to provide an efficient use of the titled equipment by detecting only a run-length at the time of scanning and by storing the obtained run-length data. CONSTITUTION:In the titled equipment, the original 1 is optically read and scanned by a scanning part 2, and the resulting scan picture signal (a) is inputted to a run-length detecting part 3. The scanning part 2 and the detecting part 3 are controlled by a a terminal control part 4, and the part 3 counts the run- length of white and black data in the picture signal (a) and outputs the resulting information, and also, stores detected information (b) when scanning in a storage device 5. The control part 4 outputs a storing-end signal of the said storing of the scanning of the original 1 and the picture information, which a communication control part 7 receives through a signal line (k). The said part 7 controls an encoding circuit 6, and the circuit 6 selectively executes MH and MR encodings under the transmission action start-up command from the control part 7. The signals (g) and (j) from the circuit 6 is supplied to a modem 8 which executes the communication with a distant destination.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a facsimile machine having a two-stroke information storage function [Prior art] Conventionally, in this type of facsimile machine.

Fax +) to effectively use storage device capacity
Redundancy suppression coding used for communication is performed in advance, and the coded image information is stored. At the time of transmission, the coded image information is read out from the storage device and sent to the communication line.

However, with this method, the scanned image information is encoded at the time it is stored, so if the other party's terminal does not have a reception function using the encoding method at the time of two communications, it will be impossible to send the data. There were drawbacks. For example, the CCITT Recommendation stipulates two methods for facsimile encoding: D (-dimensional encoding) and MR (two-dimensional encoding), but since MR is an O-decimal encoding method, it does not necessarily apply to all facsimile systems. The device does not have a dish receiving function. Therefore, if one-stroke information is encoded using kite encoding when storing information, even if it turns out that the receiving terminal does not have a unique function during one communication, it will not be possible to send -rs.
Tora fr L/1-i side turret til & 9151 賎I
F MtJ Shi? f, TsukudaF -) -h l,F
Although the above-mentioned problem can be prevented, since the encoded data is always transmitted by the same means, even if the other party's terminal has a wind function, the communication time will not be shortened because the communication time will have to be used. Note that MR has a compression efficiency approximately twice that of normal.

In addition, if encoding is performed during scanning, processing time proportional to the amount of encoded data is generally required for encoding, so if the image information of the document is complex and the amount of encoded data is large, the scanning The encoding process cannot keep up with the speed of . Therefore, a means such as temporarily stopping the scanning section is required, which causes problems in that the apparatus becomes complicated and additional time is required during scanning.

[Purpose of the invention]

By performing encoding that matches the functions of the other party's terminal during communication, it is possible to eliminate communication failures due to the functions of the other party's terminal, and to shorten communication time while making effective use of storage capacity. An object of the present invention is to provide a facsimile device having a storage function.

[Structure of the Invention] A facsimile apparatus according to the present invention includes a run-length detection section that generates white and black run-length data from an image signal obtained by scanning a document, and a run-length detection section that stores run-length data obtained from the run-length detector. It has a storage device, and an encoding circuit that reads the run-length data from the storage device and encodes it using an encoding method that corresponds to the receiving method of the other terminal, and transmits output data obtained from the encoding circuit. It is characterized by

[Embodiments of the invention]

Next, an embodiment of a facsimile apparatus according to the present invention will be described with reference to one drawing.

FIG. 1 is a block diagram showing the configuration of an embodiment according to the present invention. According to this figure, the present embodiment includes a scanning section 2 for optically reading and scanning a document 1 to obtain a scanning image signal a, and a scanning section 2 for optically reading and scanning a document 1, and a scanning section 2 for obtaining a scanning image signal a; and a run length detection section 3 that counts the run lengths of and outputs the information.

A terminal control section 4 that controls the scanning section 2 and the run length detection section 3, a storage device (disk) 5 that stores run length information, and a terminal control section 4 that controls the scanning of the document and the storage of its image information. When received via the signal line k, a communication control section 7 starts a transmission operation, and an encoding circuit 6 that is controlled by the communication control section 7 and selectively executes the frame and αR encoding.
and a modulator/demodulator 8 which modulates and demodulates the signals g and j from the communication control unit 7 and the encoding circuit 6 to enable communication with a remote location.

Hereinafter, referring to FIG. 1 and FIG. 2 showing a specific example of the configuration of the run length detection section 3.

The operation in this embodiment will be explained. When scanning a document, the terminal control section 4 instructs the scanning section 2 to start scanning, and also instructs the run length detection section 3 to start detecting the run length L in the image signal a from the scanning section 2. . As shown in FIG. 2, the run length detection section 3 includes a change point detection circuit 31. Run length counter 32.
Register 33.34. Selector 35. Run length transmission control circuit 36. and an OR circuit 37. When the change point detection circuit 31 detects a change point from white to black or from black to white in the image signal a, it turns on the signal 3a. The run length counter 32 is cleared by the signal 3a to prepare for counting the primary run length, and the value immediately before the run length counter 32 is cleared, that is, the run length, is set in the registers 33.34. . At the same time, the image signal a and the OR signal 3d of the upper eight pits of the run length are set in the register 33.

The run length sending control circuit 36 starts sending out the run length data set in the registers 33 and 34 by the signal 3a, and controls the select signal 3h to the selector 35 so that all the upper eight pits of the run length are 0 (i.e. If the signal 3g is 0), only the image signal 31 set in the register 33, the lower 6 bits 3e of the run length, and the signal 3g indicating that the upper 8 pits are 0 are used as run length data and the signal line is immediately Output. If there is a 1 in the upper 8 bits of the run length (i.e. signal 3
If g is 1), following the contents of register 33, the top 8 pits of the run length set in register 34) 3f
is sent to the signal line.

As mentioned above, the run length data sent out on the signal line is stored in the storage device 5 in FIG. In addition,
An example of run length data stored in the storage device 5 is shown in FIG.

When scanning of the document for one communication is completed, the terminal control unit 4 sends the transmission destination and the amount of documents to the storage device 5.

After writing necessary information such as a storage address, the first communication control section 7 is instructed to start transmission through the signal line k. The communication control section 7 starts communication in response to a transmission start command from the terminal control section 4, and starts communication with the receiving terminal using a well-known communication control mechanism, as specified by CCITT recommendations and the like. The communication control unit 7, which has learned from the function identification signal from the receiving terminal whether the receiving terminal has a wind reception function or not, tells the encoding circuit 6 that if the receiving terminal has a kite function, it is a wind type, and if it has a kite function, it is a wind type. command to perform encoding. The encoding circuit 6 starts reading run length data from the storage device 5 according to the command from the communication control unit 7, and
, or performs disk encoding and sends the encoded data through all the modulators 8 to the communication circuit.

In this way, the encoding method can be selected and transmitted according to the functions of the other party's terminal. moreover.

When scanning and accumulating image information, only the relatively simple process of counting run lengths is performed.

By a run length detection section as shown in FIG.

Real-time processing is possible without stopping the scanning unit during scanning.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, only the run length is detected during scanning, and the run length data is accumulated.

It is possible to shorten the scanning time by eliminating temporary stoppage of the scanning unit, and when communicating, it is possible to select the most suitable encoding method according to the functions of the other party's terminal, so that it can be used efficiently in terms of operation. The effects obtained are great.

[Brief explanation of drawings]

FIG. 1 is a professional diagram showing the configuration of an embodiment according to the present invention.
Figure 2 shows the run length in Figure 1. FIG. 3 is a block diagram showing a specific example of the configuration of the detection unit.
FIG. 3 is a diagram showing an example of the relationship between run length and accumulated data in the first embodiment. In the figure, 1 is a document, 2 is a scanning section, and 3 is a run length detection section. 4 is a terminal control unit, 5 is a storage device, and 6 is an encoding circuit. 7 is a communication control unit, 8 is a modem, 31 is a change point detection circuit, 32 is a run length counter, 33, 34 is a register, 35 is a selector, and 36 is a run length transmission control circuit.ゝ +- Figure 3

Claims (1)

[Claims] 1. A run length detection unit that detects white and black run lengths from an image signal obtained by scanning a document; a storage device that stores run length data obtained from the run length detector; A facsimile apparatus comprising: an encoding circuit that reads run-length data and encodes it using an encoding method corresponding to a reception method of a destination terminal; and transmits output data obtained from the encoding circuit.