JPH06152916A - Controller for unique command - Google Patents

Abstract

PURPOSE:To provide the controller of unique commands for enabling registration with extendability concerning the registration of the unique commands to a memory. CONSTITUTION:A command table, an address table and a code table as indicated in a figure are stored in a ROM inside the communication control part of a facsimile equipment beforehand. At the time of turning on the power source of the facsimile equipment, RAM addresses are successively read from the address table and codes stored in the code table are stored in pertinent areas. Thus, in this case, since the codes of the commands can be stored in a reloadable storage area (RAM), even when the code of the unique command dublicated with a command code newly added by CCITT T.30 for instance, the code of the unique command can be changed and the dublication of the command codes can be evaded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unique command control device, and more particularly to a command that is uniquely defined by CCI.
The present invention relates to a unique command control device that can be registered in a memory and effectively used without duplication with a command defined by TT or newly defined in the future.

[0002]

2. Description of the Related Art Conventionally, in G3 facsimile machines, CC
ITT T. In addition to the protocol procedure defined by 30, the protocol procedure may be uniquely defined and operated.

For example, in Japanese Unexamined Patent Publication No. 4-61470, a HOM which is a low speed (V.21) signal having a content of "sending image information from now on" is sent before sending image information.
It is disclosed that (Head of Message) is added independently. In this publication, "HOM FCF is assumed to be T.3.
0 uses unused code ”, and it is proposed to register it in the memory independently.

[0004]

[Problems to be Solved by the Invention] CCITT
T. At 30, new commands are expected to be added. For this reason, as in the prior art, the code of the command that is uniquely defined is currently the T. Simply assigning unused code at 30 gives CCITTT. Thirty
There is a possibility that it will be duplicated with the command code newly added in. In case of duplication, the originally defined command cannot be used, or CCITTT. There was a problem that the command newly added in 30 could not be used.

An object of the present invention is to eliminate the above-mentioned problems of the prior art and to register a unique command in a memory.
It is to provide a control device for a unique command that enables registration with expandability.

[0006]

In order to achieve the above object, the present invention provides CCITT. It is characterized in that a means for storing a command group defined by 30 and a rewritable storage means for storing a unique command are provided.

[0007]

According to the present invention, since the code of the unique command can be rewritten, it is possible to register the unique command in the memory with extensibility.

Further, the code of the unique command is CC
ITT T. Even if it overlaps with the command code newly added at 30, the problem that one of them cannot be used as in the conventional case is solved, and both commands can be used.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings. First, a hardware configuration diagram of a facsimile apparatus to which the present invention is applied will be described with reference to FIG.

In the figure, reference numeral 1 denotes a CPU, which performs control processing of the entire facsimile apparatus and facsimile transmission control procedure processing. A RAM 2 provides a work area used by the control program. An operation display device 3 is an operation unit and a display unit for operating the facsimile apparatus. A reading device 4 has a function of reading a transmission document. Reference numeral 5 denotes a printing device, which has a function of recording received image information.

Reference numeral 6 denotes an image processing device, which performs encoding and decoding processing. An image storage device 7 serves to store image information. A system control unit 8 is a program for controlling the entire facsimile apparatus. Reference numeral 9 is a program for controlling facsimile communication. These programs are stored in the ROM.

A modem (modulator / demodulator) 10 has a low speed mode (for transmission procedure signal: V.21) and a high speed mode (for transmission / reception of image information: V.27ter, V.29).
V. 33, V.I. 17) It has a function. A network control device 11 has a function of connecting to a public network and an automatic call originating / receiving function. A system bus 12 is a bus for exchanging data with each other.

Next, a first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing the functions of the essential parts of this embodiment. In the figure, 21 is a command area creating means. This means 21 is a program in the communication control section 9 and is executed by the system control section 8 when the facsimile apparatus starts up (for example, when the power is turned on). A concrete example of this program is shown in FIG.

In FIG. 1, 22 is a command table, 23 is an address table, and 24 is a code table. These tables are stored in the ROM of the communication control unit 9. Further, 25 is a command area, which is used in the RAM 2
The area is reserved above.

The command table 22 is formed by numbering the commands used in the facsimile apparatus, and an example thereof is shown in FIG. 2 (a). For example, DI
S is numbered 0 and NSF is numbered 1. This table 22 can be made independently.

The address table 23 indicates at which address the code of the command corresponding to the number (NO.) In the command table 22 is located. One example is shown in FIG. 2 (b).

The code table 24 is a table showing an actual communication code of a command corresponding to the number (NO.) Of the command table 22. One example is shown in FIG. 2 (c).

In the command area 25, the corresponding code in the code table 24 is stored at the address specified in the address table 23. An example of this is shown in FIG. 2 (d).

Next, the operation of this embodiment will be described with reference to the flowchart of FIG. This operation is executed when the facsimile machine is started up, as described above.

In step S1, the code table 2
It is determined whether or not the size of 4 is 0. Initially, this determination is negative, and the process proceeds to step S2. Step S2
Then, the address information is fetched from the address table 23, and the code of the code table 24 is transcribed to the fetched address.

For example, the address information "address 0" is fetched from the address table 23, and the code "80" is stored in the address 0.
Post "H".

In step S3, the code table size is decremented by 1. Further, 2 is added to the address of the address table 23. This "2" is added
This is because the address of the address table 23 is composed of 2 bytes. For example, address 0 of the address table 23 is "0000", address 1 is "0001", and address 2 is "0002".

When the above operation is continued until step S1 becomes affirmative, the command area (RAM) is set to the above-mentioned FIG.
The table shown in (d) can be created.

According to the present embodiment, for example, when the command "New" is created in the unique mode and the number 30 is assigned to the command, the above-mentioned operation is executed at the time of starting up the facsimile apparatus, thereby Command area (RA
The code "08H" corresponding to the command "New" can be stored in the address 30 of M).

As described above, in this embodiment, since the command in the unique mode is transferred to the rewritable command area and used, the CCITT T. When the command code newly added at 30 becomes, for example, “08H” and the command code overlaps with the command “New” set in the unique mode, it is possible to rewrite the command code so as not to overlap. For example, the “08H” is replaced with “09
By rewriting to "H", it is possible to avoid duplication.

Next, a method of rewriting the command code transcribed in the command area (second embodiment of the present invention) will be described with reference to FIGS. 4, 5 and 6.

FIG. 4 shows a functional block diagram of the main part of this embodiment. 26 is a command code change requesting means, 27 is a command area content changing means, and other reference numerals are the same as or equivalent to those in FIG. Show. The change requesting means 26 is one function of the operation display device 3, and the command area content changing means 27 corresponds to a program stored in the communication control section 9. The outline of the program is shown in FIG.

Next, the operation of this embodiment will be described with reference to FIGS.
Will be described with reference to. First, in step S4, it is determined whether or not there is a command code change request. If there is a change request, the process proceeds to step S5, and the command number (NO.) To be changed and the changed code are input. To be done.

For example, when the command code of the command "New" is changed from "08H" to "09H", the change request means 26 sends the command NO. "3
"0" and the new command code "09H" are input.

In step S6, the address table 23
Is referred to, and the command NO. "30" is taken out from "30". Then, in step S7, the new command code "09H" is changed to "3" in the command area.
Address 0 "is written. In this way, the command code of the command "New" is rewritten from 08H to 09H.

Therefore, the command code “08H” of the command “New” is CCITT T.264. Even if it is used as the command code of the command newly added in 30,
Since the command code of the command “New” has been updated to 09H, it can be used without losing the function of the command “New”.

Next, another method of rewriting the command code transcribed in the command area (third embodiment of the present invention) will be described with reference to FIGS. 7, 8 and 9. FIG. 7 shows a functional block diagram of essential parts of this embodiment.
Reference numeral 8 is a command code change requesting means, and 29 is a command area moving means.

The operation of this embodiment will be described with reference to FIGS. 8 and 9. When there is a change request from the change requesting means 28 in step S8, the process proceeds to step S9 and the command NO. Then, the change destination address and the command code are input.

For example, when the address of the command name "New" is changed to the address 40 and the command code is 09H, the command NO. 30 and the destination address 40
The address and the command code 09H are input.

When the operation proceeds to step S10, the address "40" input from the change requesting means 28 is input to the address corresponding to "New" in the address table 23.
Is written. When the process proceeds to step S11, the command code 09H is written in the 40th address of the command area. In the example of FIG. 8, “XX = 40” and “YY = 09”.

Therefore, according to this embodiment, the command code of the command "New" can be rewritten to 09H while the command code 08H stored at the address 30 remains. Therefore, the command code "08H" is C
CITT T.A. Even if the command is newly added at 30, the command can be used without losing the function of the command “New”.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. 10, 11 and 12. FIG. 10 is a functional block diagram of the essential parts of this embodiment, where 30 is a command code change requesting means, 31 is a command area moving means, and 3
2 shows a code change management table.

The operation of this embodiment will be described with reference to FIGS. 11 and 12. When there is a change request from the change requesting means 30 in step S12, the process proceeds to step S13,
Command NO. Then, the change destination address and the command code (data) are input. In the present embodiment, consider the case where the address of the command name New is changed to the address 40 and the command code (data) is set to 09H.

Then, in step S14, the data 09H is written at the address 40 of the command area 25. In step S15, the command No. 30 and address 40, which is the command area address, are written. In the example of FIG. 11,
“XX = 40” and “YY = 09”.

The code change management table 32 is RA
An area is taken on M, so that a new command area can be reserved and the old area can be used.

According to the present embodiment, by referring to the code change management table 32, it is easy to determine whether there is a unique command whose command code has been changed, and if so, which address in the command area. There is a merit that you will understand.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. 13, 14 and 15. This example
9 shows an application example of the fourth embodiment. In this application example, when a new command is added in CCITT and overlaps with an existing command, the area on the CCITT command map does not move for the old model of the facsimile machine, but only for the new model. This operation is simplified by referring to the code management change table.

FIG. 13 shows a functional block diagram of the main part of the present embodiment. Reference numeral 40 is a negotiation determining means, 41 is a command area selecting means, and 42 is a command sending means.
Further, 43 is a code change management table, 44 is an address table or code change management table, and 45 is a command area.

The negotiation determining means 40 analyzes the received NSF command and notifies the command area selecting means 41 of the result. Command sending means 42
When the command is sent, the command NO. Is notified to the command area selection means 41 and the code to be transmitted is received.
The command area selecting means 41 is provided with the result notified by the negotiation determining means 40 and the command NO. On the basis of the above, the code is taken out and notified to the command sending means 42. Also, the command sending means 42 sends the code notified from the command area selecting means 41.

FIG. 14 is a diagram showing a specific example of the command table, address table, command area, and code change management table.

Next, the operation of this embodiment will be described with reference to FIG. In step S20, it is determined whether the NSF command has been received. In step S21, the NSF received by the negotiation determining means 40 is analyzed. Then, in step S22, it is determined whether the partner machine is a new type or an old type.

In the case of a new type, the process proceeds to step S23, and the command "Ne
It is determined whether "w" is registered. If it is registered, the process proceeds to step S24, and the operation of fetching the address of the command "New" from the code change management table 43 is performed.

On the other hand, when the step S22 or S23 is negative, the process proceeds to step S25, and the operation of fetching the New address from the address table 44 is performed. In step S26, N is extracted from the fetched address.
The ew code is taken out and notified to the command sending means 42. The command sending means 42 sends this (step S27).

For example, if the old type facsimile machine uses the address 30H code 08H and the new type facsimile machine uses the address 40H code 09H, the above-mentioned step S2.
When the determination of 2 is affirmative, the command 09H is transmitted from the command transmitting means 42, and when the determination of 2 is negative, the command 0 9H is transmitted.
8H is transmitted.

As described above, according to the present embodiment, by referring to the code change management table, it can be easily known whether there is a unique command whose command code has been changed, and the series of processes shown in FIG. 15 can be simplified. In addition, the processing speed can be improved.

If the partner machine is an old model, the command before the change can be sent to the partner machine, so that communication can be performed without causing trouble.

Next, a sixth embodiment of the present invention will be described with reference to FIGS. 16, 17 and 18. In FIG. 16, 50 is a unique code extracting means, 51 is a command sending means, 52 is a command receiving means, and 53 is a code managing means. Further, 54 is a unique code table, 5
Reference numerals 5 and 56 are unique codes or CCITT code tables.

The unique code extracting means 50 analyzes the received NSF signal, extracts the unique code information from the content, and notifies the code managing means 53 of the information. The code management means 53 writes the notified code information in the unique code table 54.

The command sending means 51 sends a command NO. Is notified to the code management means 53, and the code to be transmitted is received. The code management means 53
The input command No. The unique code table is searched based on the corresponding command No. If there is, the code is taken out, if not, the code is taken out from the CCITT code table, and the command sending means 51 is notified.

Next, the command sending means 51 sends the code notified from the command area selecting means. Upon receiving the command, the command receiving means 52 notifies the code management means 53 of the received code. The code management means 53 searches the unique code table based on the input code, and if there is a corresponding code, the command N
O. If there is no command, the command number from the CCITT code table It takes out and notifies the command receiving means 52.

FIG. 17 shows a specific example of the CCITT code table and unique code table.

The operation of this embodiment will be specifically described with reference to the flowchart of FIG. In step S30, it is determined whether the NSF command is received, and the NSF command is received.
When the command is received, the process proceeds to step S31 and the NS
F is analyzed and code information is extracted. For example, the command NO. Is 30 and the code information is 50H.

At step S32, N of the unique code table is read based on the data fetched at step S31.
O. At 50, write 50H. In step S33, it is determined whether or not there is a command transmission instruction. When this determination is affirmative, the process proceeds to step S34, and the input command NO. , NO. 30 is searched in the unique code table.

In step S35, the command NO.
(For example, NO.30) is determined,
When it is determined that there is the command No. from the unique code table. The code corresponding to is extracted and transmitted in step S38. On the other hand, when a negative decision is made in step S35, the code is taken out from the CCITT code table 55 and is transmitted in step S38.

When the result in step S33 is negative, the process proceeds to step S39, and it is determined whether or not the command is received. If this determination is affirmative, the flow proceeds to step S40, and the input code (for example, 50H) is searched in the unique code table. Then, step S41
Then, it is judged whether or not the code is present.

If the code is present, step S
42, and from the unique code table, the command No. corresponding to the code. Is taken out. Then, the process proceeds to step S44 and the command NO. Based on, the notification that the command has been received is sent. On the other hand, the step S4
When 1 is negative, the process proceeds to step S43 and CCIT
Command N corresponding to the code from the T code table
O. Take out. Then, the process proceeds to step S44, and the command NO. Notify that the command has been received based on.

As described above, according to the present embodiment, since the unique code table is created by the communication between the transmitter and the receiver, it is possible to flexibly respond to the addition of a new command. is there.

[0063]

According to the present invention, since the area for storing the unique command code is secured in the rewritable area, the unique command code can be changed. Also, if the command codes overlap, by changing the code,
This has the effect of eliminating command overlap.

According to the invention of claim 4, in addition to the above effect, there is an effect that the code of the changed unique command can be easily managed.

According to the invention of claim 5, it is possible to select whether to use the code of the unique command before change or the code after change according to the function of the partner machine. is there.

According to the sixth aspect of the invention, since the code of the unique command is determined by the communication with the partner device, there is an effect that it is possible to respond flexibly even if a new command is added.

[Brief description of drawings]

FIG. 1 is a schematic functional block diagram of a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a specific example of each table and command area in FIG.

FIG. 3 is a flowchart illustrating the operation of the first embodiment.

FIG. 4 is a schematic functional block diagram of a second embodiment of the present invention.

5 is an explanatory diagram of a specific example of each table and command area in FIG.

FIG. 6 is a flowchart illustrating the operation of the second embodiment.

FIG. 7 is a schematic functional block diagram of a third embodiment of the present invention.

8 is an explanatory diagram of a specific example of each table and command area of FIG. 7. FIG.

FIG. 9 is a flowchart illustrating the operation of the third embodiment.

FIG. 10 is a functional block diagram of an essential part of a fourth embodiment of the present invention.

11 is an explanatory diagram of a specific example of each table and command area in FIG.

FIG. 12 is a flowchart illustrating the operation of the fourth embodiment.

FIG. 13 is a functional block diagram of a main part of a fifth embodiment of the present invention.

FIG. 14 is an explanatory diagram of a specific example of each table and command area in FIG.

FIG. 15 is a flowchart illustrating the operation of the fifth embodiment.

FIG. 16 is a functional block diagram of a main part of a sixth embodiment of the present invention.

FIG. 17 is an explanatory diagram of a specific example of each table in FIG.

FIG. 18 is a flowchart illustrating the operation of the sixth embodiment.

FIG. 19 is a block diagram showing a hardware configuration of a facsimile apparatus to which the present invention is applied.

[Explanation of symbols]

9 ... Communication control unit, 21 ... Command area creating means, 22
... Command table, 23 ... Address table, 24 ...
Code table, 25 ... Command area, 26, 28,
30 ... Change requesting means, 27 ... Command area content changing means, 29, 31 ... Command area moving means, 32 ... Code change management table

Claims (6)

[Claims] 1. A control device for a unique command defined uniquely, comprising CCITT. A unique command control device comprising means for storing a command group defined by 30, and rewritable storage means for storing a unique command, wherein the code of the unique command can be changed. 2. The unique command control device according to claim 1, further comprising means for changing a code of the unique command stored in said rewritable storage means. 3. The unique command control device according to claim 1, further comprising means for moving a code area of the unique command, and means for writing a changed unique command code in the moved code area. A unique command control device characterized in that 4. The unique command control device according to claim 1, further comprising means for managing a changed unique command code. 5. The unique command control device according to claim 1, wherein whether to use the code of the unique command before change or the code after change based on communication at the time of communication. A unique command control device comprising means for determining. 6. The unique command control device according to claim 1, further comprising means for determining a code of the unique command based on communication at the time of communication, wherein the determined code is the rewritable storage means. A unique command control device characterized by being written in and used.