JPS62117457A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To inform to an opposite party that the repeatability of reproduction picture information at a reception side deteriorates by encoding communication control data so as to link it to received encoded data and returning it to the reception side. CONSTITUTION:According to a request from a CCU 35, the encoded data received through a circuit 37 is sequentially accumulated in a BM 34. The accumulated data is reproduced by a CODEC 33, and recorded in a recording part 36 through a line memory 32. In accordance with data on codes such as a document number and a checkpoint reference number in a session layer, communication control information is read out of a character generator and accumulated in the line memory 32. Next, the CODEC 33 is started, and the communication control data in the memory 32 is encoded. Then the encoded control data is linked to the encoded and received data to prepare transmission data of one page, which is outputted to the terminal of the opposite party.

Description

DETAILED DESCRIPTION OF THE INVENTION σ) Technical Field The present invention relates to notification of reception of facsimile transmissions and the like.

■Prior Art Conventionally, in facsimile transmission, there is a means for the transmitting side to notify the receiving side of the number of sheets to be sent, etc., but there is no means for notifying the receiving side or the transmitting side.

With conventional facsimile machines, the information received is subject to line failures,
There was no way to notify the other party even if the reproduction of the reproduced image information (1) on the receiving side deteriorated due to failure of the reading unit or deterioration of the image information due to the performance of the reading unit.

(1) The present invention solves the above-mentioned conventional problems, and aims to realize means for notifying the receiving side or the sending side.

■Configuration First, one glue product of the present invention will be explained.

1) Set the return service setting flag in the system ARAM according to the operator's key operations.

Since the system ARAM is backed up by a battery, even if the power is turned off, the service continues until the operator cancels the return service setting.

2) When the service in 1) is set, sequentially store the received encoded data of 1α in the page memory, set C0DFr, r: to 1-, and perform SAF → decoding → IM → recording. and play back the image information.

3) Add a session reversal request to the response RI)FI) to the CDH sent from the sending side when the document ends. (It is also possible to add a reversal request bit to R5SP.) 4) At the other end terminal [1] in the session layer (C8S/R55P), at ■, document number included in CDS and CDPR, check point 1 to reference number (
According to code data such as page number), pattern information is read from the character generator (PG) and stored in the LM.

5) Star C()11) (same encoding method as the received data) to encode the communication management data shown in FIG. 4 in 1M.

6) Connect the encoded management information and encoded received data,
Create one page of transmission data.

7) After the session is reversed (from the receiving side to the transmitting side), the encoded information in 6) is output to the partner terminal.

FIG. 1 is a diagram for explaining the flow of the normal control procedure for both signal transmission and reception, and shows the control procedure for G4 FAX.

Next, the flow of the normal control procedure for transmitting and receiving both signals will be explained using FIG.

Outgoing call connection setting--Generally, the procedure for establishing a call with the other party using the network provided by the carrier (NTT in the FI version).

Network used (PSTN, ll5I]N, C3n
N, TSDN (TNS)).

■Data link layer iQ-defined data link layer is recommended by CCTTT.
Use I D i,C, control procedure.

SAIIM:Set, A11Mmo1-1UA:tl
A link layer connection is established by nnumbersd Accept.

■Transport layer settings The transport layer is TCR (Transport Connection
Request) TCA (Transport Con
A connection is established by ``connection Accept;''.6 Also, the size of the data block of the next device is negotiated, and the number of octets (1 to 1) of the data block to be used during communication is determined.

■5ession Ray AI setting C5S (CC55(Co 5ession Sl, ar
t) R5SP (Response 5ession 5
Establish a connection using tart Po5itivo).

At this point, the IDs, abbreviations, etc. of the two station devices are exchanged, and the window size, presence or absence of screen memory, etc. are negotiated.

■Document 1 ~ Settings CDCL (ComIIland Document C
ability LjSt)R1)CLP(ReS
ponso Ilocument Capabilit
y1. jst Positive)CDS(Coma
nd DocumCnt 5tar) to establish a document layer connection.

CDLC, RnCLI) is y7. Notify each other of the capabilities of other devices.

Then, mode setting is performed using CI'lS.

■ Image information transfer Here, since the connection with the other party has been set up by ■ ~ ■, image information data is transferred to CDUI (Co+nmand 11ocun
User Information
It adds R and passes it to the fifth layer and sends it out to the line as one-stroke information. (HF, ADER also in the lower layer)
Processing is performed at each layer. ) Set the mode of the page in the first CI) old.

(★1 and 2 in Figure 1) Transmission: The image data from the reading section enters the LM and is sent to the COD[
:C coded and stored in BM. Lung data is C
Sent to the CU and stored in the CCU's flow buffer.

As a result, the CCU passes the encoded data in the flow buffer to the document layer, and
l: R-processes and sends to the line.

When sending, LM and BM are used to control reading speed and con.
Perform buffering with PC speed.

8M and Fll perform COD FC, speed and line speed buffering.

-6= Reception: Data received from the line is processed by IIEA, IIIE, and R at the layer within the CCU.
Store it in the flow buffer as encoded data.

The encoded data in the flow buffer is transferred to I'3M, decoded by CODRC, transferred to LM, and recorded and reproduced by ilcU.

During reception, line speed and C0 are determined by FI3 and FIM.
Performs buffering with DFC speed.

Then, buffering between the recording speed and the C0DF speed is performed using LM and Ding.

■End to page boundary and document 1■ When the transmission of page 1 [1 is completed, if there is still a document to be sent next, CI) PB (Command Document l'
The end of the page is notified to the receiving side by ``age_end_oundary''.

If the current page is the last page, CDE (Commade 11oc+nn0nt fi
nd) to notify the end of the document.

On the other hand, from the receiving side, C1) l) l' (for RDPBP (Response I)
Page Boundary Po5itive)C
[For 'll+, RnEP (Response rlocu+oent
End Po5il, 1ve).

Additionally, a page number parameter is attached to these commands/responses (hereinafter abbreviated as C/R), which allows page management and communication management based on the window size negotiated in the session connection. .

The response marked - is an affirmative response, and if the page could not be received correctly, RnPRM (Response Document P
age Bouydary Negative) is used.

1':n)! , RI) RP terminates the document layer connection.

■Session End CSE (Command 5session End
)R5RP(Response 5ession En
d Po5j, tj, ve) to terminate the session connection.

The end of the transport layer is simultaneous with the end of the session layer.

■Link layer termination-r DTSC (Djss Connect,) UA (Un
numbered Acc8pt, ) to release the link layer connection.

[Phase] Call disconnection setting - Release the call on the line that is on hold due to the end of communication.

Similar to (2), the procedure is determined by the network used.

FIG. 2 is a block diagram of an embodiment showing the configuration of the present invention, and shows the configuration of a system control unit 1-(SCU).

1 is a CPU that controls each component for realizing the present invention.

2 is the CG, which supplies the tarok and reset signals required by the CPU.

3 is DBUF, which switches the input/output direction of the data bus in the CPII read/write cycle; I) MA
A bidirectional driver that disconnects the CPU data bus during cycles.

4 is A811F, which is a driver that latches and outputs an address signal based on the control output signal of the CPU from the address/data bus output from the CPU. Also, in a DMA cycle, the address signal from the CPU is disconnected and the address signal line from the DMA controller is enabled.

5 is C3, which supplies a select signal to the device required by the CPIJ/11MA controller based on the address signal from AILUF.

6 is CB IJ F, output from CPU, IO/
In the driver and DMA cycles that output various control signals such as FI, RD, VR, etc., the control signals from CI)U are separated and the control signals from the DNA controller are enabled.

7 is 1, A, read image information data from a VPU (video processor unit) not shown, R not shown
A line memory that stores multiple lines of recorded image information data to be output to the I'iC (recorder unit).

-10-8 is rlMA, which controls DMA (die reflex memory access) operation for high-speed data transfer between CCU (communication control unit 1-) and nM (buffer memory), not shown.

9 is C0DFC, which compresses and compresses both information data (read/record) using known encoding methods such as MH, MR, and MMR.
Extend.

10 is a PG, which is a pattern generator that generates pattern data based on character information used for displaying a sender, a communication management report, a display for an operation panel, etc.;

11 is a BM, a buffer memory that sequentially stores the data encoded by C0I) [4C9 and the encoded data sent from the partner device.

12 is S A F, and a memo + 1 that stores encoded data used for circulars, multiple sheets = 11-, etc., or multiple sheets.
13 is an EEROM, which is an electrically erasable ROM that stores device parameters.

14 is a ROM that stores programs.

I5 is I'1llIA CnNT, C0DiiC9,
According to the I)MA request generated at 1'1MAR, CI)U
The output of the hold request signal for C(IrIF(
': , 11 MA priority determination, according to the priority of the Hall 1 confirmation signal from the CPU C, 01) I・C, r
Distribution to lMA, 111 (IF, A11UF, CBI
Outputs a CPII Bus disconnection instruction to the IF, and enables DMA and C0DFC data/address/control signals according to priority.

161 soil 1N1', C, T, G, (i') rNT, c (interlab docon 1~roller) uNCcU, OPE, RPC, Vl''U or DMA as shown.

I) Based on interrupt request No. 48 of MA C0NT or r), an interrupt request is output to the C recess, and a vector address set for each side interrupt cause is output in accordance with a request from the CPU.

(ii) Generate clock and synchronization signals for re-transfer of information for T, l'; VPII, RT<C.

17 is a CCU, a TF, and a communication control unit (not shown).
CCII pair line, interface unit that executes communication control procedures with the partner device.

18 is 0yen i, TF, which interface circuit (not shown) is a man-machine interface unit l-(OPE).

19 is RIFC, TF, at the time of reception / = "B received at once,
Unit I~ that records and reproduces single-picture information or read-picture information
(ru7C) interface part.

Reference numeral 20 denotes a VPU, a TF, and units 1-(
Interface section with VPU).

21 is Too P, which is an input/output port for various sensors and solenoids provided to control mechanical operations.

Reference numeral 22 denotes JOURNAL RAM, which is a communication management memory that sequentially stores communication status.

23 is SYSTEM RAM, which controls this device -1
- This is a RAM for storing various control parameters necessary for - and setting states of various services that can be executed by the device.

FIG. 3 is a diagram for explaining the operation at the time of transmission and reception in the present invention, where 31 is a reading unit (V P 11 ), 32 is a line memory (1,,M), and 33 is C, On rj C5. ;(4
is r1M/SAF, 35 is CCU, 36 is ff self-recording department (
RrIC), 37 indicates the same line, 38 indicates the data flow during transmission, and 39 indicates the data flow during reception.

In addition, the line memory (LM) 32 has 10 copies (recording section,
Perform the smoothing operation for reading j1 part), 1. M, l'
l Performs FTFO operation with both old and new soldiers.

Next, the operation shown in FIG. 3 will be explained.

1) At the time of transmission i) CP[I detects the free state of LH, and if there is space in L and H, requests one line of image information from the VPU, and sends one line of image information from the vPU to the LM. accumulate.

If the LM receives more Kg, start the VPU again.

This operation is 1. Repeat until M is full (during this time v
The PU continuously reads the original without stopping.)

1j) In parallel with i), CP[J operates COYoC.

C01) [j C, sequentially encodes the LM data according to a preset encoding method as long as there is information in the LH, and stores the encoded data in 0A.

iii) Further, C1,) U is rigidly--When more than a quantitative amount of encoded data exists, DMA is started and the omitted encoded data is output to the CCU.

1v) When the DMA in iii) is completed, a constant V is applied to H,
If there is encoded data, DMA is started again.

After processing steps i) to iv) in parallel, the process ends with sending one page of image information.

2) Upon reception i) The encoded data received through the line is sent to the SCU in order according to the request from the CCU.
Accumulated in H.

ij) If there is encoded data within 8M, SCU
starts C0rl[r,C using the encoding method according to the received parameters from the partner device, and reproduces the encoded data into image information.

The CODEC sequentially stores the reproduced image information in the LM.

iij) Furthermore, if there is image information for one line or more in the LH, RFC is started and image information for one line is output.

After outputting 1 line, if there is more image information in LM, output 1t again.
Load the PC with λ, start it, and output the image information.

This operation is performed continuously until the LM becomes empty.

(The recording paper will record continuously without stopping.)
FIG. 4 shows an example of communication management data used in the present invention.

In the figure, 0123 Al1C: Partner session information in C5S/R85P.

Date and time information: Date and time information in CSS.

Total number of pages: CI) Bi checkpoint reference number.

045 DTF: Own terminal ■D.

(i) Negative return: If multiple pages are received, the selection of the first page, last page, or other pages depends on the receiving terminal. However, memory usage can be minimized by limiting the storage in the page memory to the received pages that are to be sent back.

(it) Number of lines in the page to be returned: In the case of a fixed length (including all pages), the number of lines in the page (i) to be returned is determined by a predetermined receiving terminal. Depends on the setting value.

In the case of arbitrary setting on the receiving side, it is easily possible by setting the number of lines when setting the service.

(2) Effects As explained above, the present invention has the effect that it is possible to realize means for notifying the sending side from the receiving side how the transmitted image information has been reproduced on the receiving side.

4. Simplification of the drawings Figure 1 is a diagram for explaining the flow of control procedures for normal transmission and reception of both signals, Figure 2 is a block diagram of an embodiment showing the configuration of the present invention, and Figure 3 4 is a diagram for explaining operations at the time of transmission and reception in the present invention, and FIG. 4 is a diagram showing an example of communication management data used in the present invention.

1...CPU, 2...C(i, 3...r
lllUF, 4...AIIUF, 5...C8
,6...CI'lUF,7...1. M, 8・
...DMA, 9...Cn 11 F C110...
・11G, 1]...8M, 12-3AF, 13 ・l
jIjloM, +4-ROM, 15...DMA
C(INT, 16... INT, C, T, f'E
,17...CCU,T',18...OPP,,I
F, 19...RljC, TF, 20 ・= VP
[I, Ding]? , 21 −= T10 P , 22
・・ JOIIIINAL, RAM, 23 ・
... SYSTEM RAM.

31... Reading unit (VPU), 32... Line memory (1, M), 33... C0DFC134...
BM/SAF, 35... CCU, 36...
Recording unit (RljC), 37... Line, 38... Data flow during transmission, 39... Data flow during reception.

Patent applicant: Ricoh Co., Ltd. Figure 3 Figure 4

Claims (2)

[Claims] (1) In a device that transmits image information, means for temporarily storing received encoded data, means for encoding and concatenating communication management data with the received encoded data, and returning the concatenated encoded data to the transmitting side. A facsimile device comprising means for. (2) The facsimile apparatus according to claim (1), further comprising means for setting image information to be returned page by page or line by line.