JPH01176162A - Incoming transfer data processor - Google Patents

Abstract

PURPOSE:To normally transfer the content of a memory page by giving a page end code (RTC code) to the final part of a page memory when the capacity of memory is exceeded in case of incoming transfer and transferring the result to the next station. CONSTITUTION:A memory overflow discrimination section 8 monitors the overflow of a page memory 5 during the reception and when memory overflow is detected, a bit counter and an output pointer saved in a RAM are loaded and the data designated by the pointer is loaded. Then the final data is found out based on the loaded data and the bit counter and the page and (RTC) code in matching with the modes (MH, MR, MMR) is made and stored in the page memory. Moreover, the output pointer and data block counter are matched after the RTC added thereto. The memory overflow is detected in this way to add the RTC code. Thus, no error exists in the reception side and normal reception is attained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an incoming call transfer data processing device in a facsimile machine or the like.

(Prior art) As shown in FIG. 2, incoming call forwarding is when the facsimile machine of station A is set to forward a call addressed to the facsimile machine of station B. When the station receives a call for a manuscript (calligraphy information), the received manuscript is sent to A.
This is a mode in which recording is performed in the station's equipment and transferred to station B.

FIG. 3 shows how data is entered into memory when transferring an incoming call. Data received by the facsimile machine is temporarily stored in a page memory (SAF memory) that stores data for one page, and after performing necessary processing such as data expansion, is recorded in the recording section. At the same time, the data stored in the page memory is transferred to the next station B. For normal manuscripts, only the page memory is sufficient, but for complex manuscripts, the amount of data increases, and so-called memory overflow may occur where the page memory alone cannot accommodate the data. In that case, the Bacher memory is used as a FIFO memory, and the contents of the page memory are transferred to the zero-order station B, which records them in the recording section via the Bacher memory.The data to be transferred is only that inside the page memory. When receiving and forwarding a document with memory overflow, a page end code (RT
C code) is not added. Therefore, the transfer destination B
Since the station cannot determine the end of the page at the end of the received page, resulting in a decoding error, conventionally no transfer operation is performed on a document whose memory has overflowed.

(Problems to be Solved by the Invention) The present invention solves the problem even when the memory is full during incoming call transfer.
The purpose is to allow the data stored in the page memory to be transferred normally.

(Means for Solving the Problems) The present invention provides a memory over-discrimination means for determining memory overflow in an incoming call forwarding mode in an incoming call transfer data processing device for a facsimile machine, and a memory over-discrimination means for determining memory overflow in an incoming call transfer mode. The present invention is characterized in that it includes means for adding a page end code to the last part of the stored contents of the page memory in order to transfer the document whose memory has overflowed to the next station when it is determined.

(Function) According to the present invention, when a document with memory overflow is sent from the sender side to a facsimile machine in which incoming call forwarding is set, this is determined by the memory over determination means, and the page end code addition means Since a page end code is attached to the last part of the data stored in the page memory and transferred to the next station, the next station can determine the end of the page and perform decoding normally.

(Example) FIG. 1 is a block diagram of an embodiment of the invention.

The facsimile apparatus of this embodiment includes a reading section 1 for reading a document, a recording section 2 for recording received signals on recording paper, a line memory 3 for storing signals read by the reading section 1, and a line memory 3 for transmitting signals from the line memory 3. The data compression/decompression unit (DC
R) 4. Page memory (S A
F memory) 5, a buffer memory (BM) 6 for normal transmission or reception, and a communication control unit (CCU) 7. Furthermore, it has a control unit 10 for controlling various operations of the facsimile apparatus including these configurations,
This control unit 10 is constituted by software executed by a CPU, and includes a memory overage determination unit 8 that determines whether the page memory 6 is overflowing, which is a feature of the present invention, and a page end code (RTC code). It includes a page end code (RTC code) adding section 9 that adds a page end code (RTC code).

The operation of the embodiment of the present invention configured as above will be explained.

The manuscript for incoming call transfer to station B sent from station 8 to the next station is stored in the page memory 5 at the next station, and when it exceeds the capacity of the page memory 5, the memory overage determination unit 8 determines whether it is The buffer memory 6 is further used for the overlapping portion, and all manuscripts from the eight stations are received. Also, only the amount stored in the page memory 5 is transferred to the B station, but in the case of memory overflow, an RTC code is added to the end of the received data stored in the page memory 5 by the page end code adding section 9. Send.

5 to 7 are operational flowcharts for explaining the operation of the incoming call transfer control section in FIG. 1. The original to be forwarded is stored in the page memory 5 via the CCU 7, decompressed and decoded by the data compression/expansion section 4, and then sent to the recording section 2.
is recorded on the recording paper. During reception, the memory overflow determination unit 8 monitors the page memory 5 for overflow.

That is, it is determined whether data has entered the buffer memory 6 exceeding the capacity of the page memory 5.

If memory overflow has not occurred, the contents of the page memory 5 are transferred to the B station via the CCU 7. When memory overflow is determined, a page end code is attached to the end of the last line of the page memory, and the page is transferred (5th line).
(see figure).

In order to control the retrieval of data from the page memory 5, the page memory 5 has an out pointer for retrieving data, a bit counter for counting the bits at that time, and the like, as shown in FIG. Figure 6 is the 5th
This figure shows the flow of processing at the end of each line in the process of decoding and recording data for one page.
When decoding is performed using a one-line decoding program and the decoding process for one line is completed, it is determined whether or not the last segment of the page memory 5 has been entered, and if it is not the last segment, processing moves on to the next line. If it is the final segment, it is determined whether the remaining line memory is 512 bytes or less,
If it is not below, move on to processing of the next line. If it is 512 bytes or less, it is determined that the page memory 5 is full, and the output pointer and bit counter are saved in the RAM of the control unit 10.

FIG. 7 is a flowchart specifically showing a method of attaching an RTC code using an output pointer and a bit counter. When a memory overflow is detected as described above, the bit counter and output pointer saved in the RAM are loaded, and the data specified by the pointer is loaded. Then, find the final data based on the loaded data and the bit counter. After that, each mode (
MH, MR, MMR) is created and stored in the page memory. Also, it is set after the RTC to which the output pointer and data block counter are added.

In this way, by detecting a memory overflow and adding an RTC code, the receiving side can receive data normally without errors.

(Effects of the Invention) As explained above, the present invention monitors memory overflow when transferring incoming calls, and when memory overflow occurs, adds a page end code (RTC code) to the last part of the page memory. Since it is configured to transfer to the next station, the contents of the page memory can be transferred normally even if the memory overflow occurs when transferring an incoming call.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a diagram for explaining an overview of the operation of incoming call transfer, and FIG. 3 is a diagram showing data to the page memory and buffer memory when the memory is over. FIG. 4 is a diagram for explaining the out pointer and bit counter, and FIGS. 5 to 7 are flowcharts showing the operation of the incoming call transfer control unit in the configuration of FIG. 1. be. 1... Reading section, 2... Recording section, 3... Line memory, 4... Data compression/expansion section (DCR), 5...
・Buffer memory (BM), 6... page memory (
S A, F memory), 7... Communication control unit (CCU)
, 8...Memory over determination unit, 9...Page end code addition unit, 10...Control unit. Patent applicant Rico Co., Ltd. - Nippon Telegraph and Telephone Corporation Figure 1 Figure 2 Transfer set Figure 3, /-''M4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] A memory over determination means for determining memory over in the incoming call transfer mode, and when the memory over determination means determines memory over, the memory contents of the page memory are transferred to the next station in order to transfer the document that has exceeded the memory to the next station. An incoming call transfer data processing device comprising page end code adding means for adding a page end code to the last part.