JPH09116726A - Facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a proper operation corresponding to equipment ability in accordance with transmission speed and an incoming level by changing the external specification of a facsimile equipment in accordance with transmission speed and the incoming level at the time of selection in facsimile reception. SOLUTION: The facsimile equipment is constituted of a network controller 2, a hybrid circuit 6, a modulating/demodulating equipment 8, a memory circuit 18, a control circuit 20 and an incoming level detecting circuit 22, etc. The control circuit 20 controls a whole facsimile equipment. That is, when facsimile reception is selected, control for changing the external specification of the facsimile equipment is executed in accordance with the transmission speed and the incoming level. Concretely, whether an operation is adopted as the memory reception one or the reception and recording one when facsimile reception is selected is decided by transmission speed and the incoming level. When a memory storage operation for memory transmission is selected while facsimile reception is executed, whether or not the memory storage operation is executed is decided by transmission speed and the incoming level.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine capable of high speed communication.

[0002]

2. Description of the Related Art Conventionally, in a facsimile machine capable of high-speed communication, if a processing capability of executing dual processing is provided, image signals are received and recorded at the time of reception, and memory transmission is performed at the time of reception. The memory storing process of 1 is performed as a dual process, and when copy is selected at the time of reception, the reception is transferred to the memory reception and the copy operation is performed.

[0003]

As described above, in the conventional facsimile apparatus, the external specifications are fixed regardless of the communication transmission speed and the incoming call level.

However, the V. 34
At a transmission rate of 33.6 kb / s, the theoretical S / N is 33 dB and the actual S / N is 35 d.
About B is necessary.

On the other hand, V. 17, at a transmission rate of 14.4 kb / s, the theoretical value S
Communication is possible if / N is 20 dB and the actual S / N is about 22 dB.

Therefore, in the conventional facsimile apparatus, considering that the signal of the incoming level of -43 dBm is received, the noise in the apparatus should be suppressed to about -65 dBm. In addition, even if the recording and reading operations are performed at the same time,
It was easy to suppress it to about -65 dBm.

However, V. Considering up to 33.6 kb / s of 34, it is necessary to reduce the noise in the device to -78 dBm or less, and when recording and reading operations are performed at the same time,
It was difficult to achieve this.

For this reason, in the facsimile machine having the same internal noise as in the conventional case, if one or both of reading and recording are performed at the same time during the reception operation, the communication speed falls back. However, there was a drawback that high-speed reception was impossible.

It is an object of the present invention to provide a facsimile machine which can obtain an appropriate operation according to the capability of the machine according to the transmission speed and the incoming call level.

[0010]

Means for Solving the Problems The first invention of the present application is:
In a facsimile device having means for detecting a transmission speed for executing communication and means for detecting an incoming level of a received signal, facsimile reception is characterized in that an external specification of the facsimile device is changed according to the selected transmission speed and incoming level. And

The second invention of the present application is to perform a memory reception operation when facsimile reception is selected.
It is characterized in that whether to perform the recording operation immediately upon reception is determined by the transmission speed and the incoming call level.

Further, according to a third invention of the present application, when a memory storage operation for memory transmission is selected at the time of execution of facsimile reception, it is determined whether or not the memory storage operation is performed, the transmission speed and the incoming call. It is characterized by being decided according to the level.

Further, according to a fourth invention of the present application, when a copy operation is selected during execution of facsimile reception,
It is characterized in that whether or not the copy operation is performed is determined by the transmission speed and the incoming level.

With the above configuration, it is possible to perform the dual processing within a range in which the current receiving speed does not decrease even if the dual processing is performed, judging from the noise in the device, depending on the transmission speed at the time of reception and the incoming call level at that time. .

[0015]

FIG. 1 is a block diagram showing the configuration of a facsimile apparatus according to one embodiment of the present invention.

An NCU (network control unit) 2 connects to a terminal of the line in order to use the telephone network for data communication and the like.
It controls the connection of the telephone exchange network, switches to the data communication path, and holds the loop. If the signal level (signal line 20a) from the control circuit 20 is "0", the NCU 2 connects the telephone line 2a to the telephone side, and if the signal level is "1", the telephone line 2a.
Is connected to the facsimile side. In a normal state, the telephone line 2a is connected to the telephone 4 side.

The hybrid circuit 6 separates the transmission system signal and the reception system signal, sends the transmission signal from the addition circuit 12 to the telephone line 2a via the NCU 2, and receives the signal from the other side via the NCU 2. The signal is sent to the modulator / demodulator 8 via the signal line 6a.

The modem 8 is based on ITU-T Recommendation V. 8,
V. 21, V.I. 27 ter, V.I. 29, V.I. 17, V.I.
Modulation and demodulation based on 34 are performed, and each transmission mode is designated by the signal line 20c. The modulator / demodulator 8 inputs the signal output to the signal line 20b,
The modulated data is output to the signal line 8a, the received signal output to the signal line 6a is input, and the demodulated data is output to the signal line 8b. The modulator / demodulator 8 outputs information on the current transmission speed to the signal line 8c.

The ANSam signal sending circuit 10 is
This is a circuit for transmitting the m signal, and when the signal of the signal level "1" is output to the signal line 20d, the signal line 10a
No signal is output to the signal line 10a when the ANSam signal is transmitted to the signal line 20d and the signal of the signal level "0" is output to the signal line 20d.

The adder circuit 12 inputs the information of the signal line 8a and the information of the signal line 10a, and adds the result to the signal line 12a.
Output to The reading circuit 14 reads an image of a document with a CCD or the like and outputs the read data to the signal line 14a. The recording circuit 16 sequentially records the information output to the signal line 20e line by line.

The memory circuit 18 is used for storing raw information of read data or coded information, and for storing received information, decoded information or the like.

The incoming level detection circuit 22 inputs the signal output to the signal line 6a, obtains the incoming level, and outputs to the signal line 22a, for example, -40 dBm.

The registration circuit 24 is a circuit for registering dual processing corresponding to the communication speed and the incoming call level. Here, the noise in the device is -75d in the standby state.
It is Bm, and when the recording system operates, 5 dB noise increases, and when the reading system operates, 3 dB noise increases. Further, in the case of further 33.6 kb / s, 35
Assume that S / N of dB is required, and 31.2 kb /
s, 28.8 kb / s, 26.4 kb / s, 24.0 k
b / s, 21.6 kb / s, 19.2 kb / s, 16.
In case of 8 kb / s and 14.4 kb / s, 33d in order
B, 31 dB, 29 dB, 27 dB, 26 dB, 25 d
B / 23 dB / 22 dB S / N is required. Based on these pieces of information, dual processing corresponding to the communication speed and the incoming call level shown in FIG. 2 is performed.

In FIG. 2, corresponding to (reading, recording),
(-,-) Indicates that there is no reception at this transmission speed. Also, (×, ×) executes only memory reception,
It means that neither reading nor recording can be done at the same time, and (Δ, ×) means that reading can be done at the same time when receiving the memory. Furthermore, (△,
△) indicates that the reading operation or the recording operation can be performed at the same time when the memory is receiving, and (○, ○) indicates that the reading operation and the recording operation can be performed at the same time when the memory is receiving. Is represented.

A concrete example of the creation of FIG. 2 is 33.6 kb.
The case of / s will be described with reference to FIG. The noise in the device is -75 dBm in standby mode, and S / N
Requires 35 dB, memory reception is -75 + 35
= Reception is possible up to -40 dBm.

In order to read only at the same time, 3 dB noise increases due to the reading operation.
Reception is possible up to −40 + 3 = −37 dBm, and at the same time,
In order to perform only recording, 5 dB noise is increased due to the recording operation, so reception up to −40 + 5 = −35 dBm is possible. Further, in order to read and record at the same time, reception is possible up to −40 + 3 + 5 = −32 dBm.

The operation unit 26 is a one-touch dial, speed dial, start key, ten-key pad, data necessary for registration in the circuit 24, for example, device noise, increased noise during reading, and increased noise during recording. It has a key for registering and other function keys, and the pressed key information is output to the signal line 26a.

The control circuit 20 controls the entire facsimile apparatus of the present embodiment. In particular, in the present embodiment, when facsimile reception is selected, the facsimile apparatus operates according to its transmission speed and incoming level. It controls to change the external specifications.

Specifically, when the facsimile reception is selected, the memory reception operation or the reception / recording operation is determined by the transmission speed and the incoming level. Also,
When a memory storage operation for memory transmission is selected at the time of executing facsimile reception, whether or not the memory storage operation is performed is determined by the transmission speed and the incoming call level. Further, when the copy operation is selected at the time of executing the facsimile reception, whether or not to execute the copy operation is determined by the transmission speed and the incoming call level.

4 to 6 are flow charts showing the control flow of the control circuit 20 in this embodiment.

First, in S32, a signal of signal level "0" is output to the signal line 20a to turn off the CML. Also,
In S34, the signal of the signal level "0" is output to the signal line 20d, and the ANSam signal is not transmitted.

In S36, the information of the signal line 26a is input, and it is judged whether or not the registration of the data necessary for the circuit 24 is selected. If not selected, the process proceeds to S40, and if selected, the process proceeds to S38. As data necessary for the circuit 24, noise of −75 dBm and noise of 3 dB at the time of reading increase in the device. Data that increases noise of 5 dB during recording is set, and the information of FIG.
Register with.

In S40, it is determined whether or not the receiving operation is selected. If it is selected, the process proceeds to S44, and if it is not selected, the process proceeds to S42 and other processes are performed.

In S44, the signal of the signal level "1" is output to the signal line 20a and the CML is turned on. In S46, the pre-procedure is performed, in S48, the information of the signal line 22a is input, the incoming level of the signal is input, and this information is stored.

In S50, the information of the signal line 8c is input,
Memorize the transmission speed of the image signal. In S52, the information of the signal line 24a is inputted, it is judged from the transmission speed and the incoming call level, and it is judged whether or not the recording is possible at the same time.
Specifically, in FIG. 2, it is determined whether or not the recording position of (reading / recording) is the Δ mark or the O mark, and if the recording is not possible at the same time, the process proceeds to S64, and the memory reception is performed.

If recording is possible at the same time, the process proceeds to S54, the image signal is received and recorded, and if one communication is not completed, the process proceeds to S84.

When one communication is completed, the post-procedure is performed in S58, and in S60, the signal of the signal level "0" is output to the signal line 20a to turn off the CML. In S62, if there is memory storage for memory transmission, all information is stored in the memory, and the process proceeds to S32.

After receiving the memory in S64, S
At 66, it is determined whether or not one communication is completed, and if so, the process proceeds to S68, where the post-procedure is executed.
Proceed to 76.

After the above-mentioned procedure of S68, in S70, the signal of the signal level "0" is output to the signal line 20a, and the CML is output.
Turn off.

Then, in S72, the memory reception information is recorded. Here, if there is information to be stored in the memory for memory transmission, the information is also stored in the memory.

In S74, it is judged whether or not all the memory reception information recording is completed. If completed, the process proceeds to S62, and if not completed, the process proceeds to S72.

In step S76, it is determined whether or not memory storage for memory transmission is currently being executed. If so, the process proceeds to step S78 to store transmission information in memory.
If not being executed, the process proceeds to S80.

In S80, it is determined whether or not memory storage for memory execution is selected. If selected, the process proceeds to S82, and if not selected, the process proceeds to S64.

In S82, the information of the signal line 24a is inputted, and it is judged from the transmission speed and the incoming level, and at the same time, it is judged whether or not the reading is possible. Specifically, in FIG. 2, it is determined whether or not the reading position of (reading, recording) is the Δ mark or the O mark, and if the simultaneous reading is possible, the process proceeds to S78, and if the simultaneous reading is not possible, S64 is performed. Proceed to.

In S84, it is determined whether or not the copy is selected. If it is selected, the process proceeds to S86, and if it is not selected, the process proceeds to S114.

In S86, the information of the signal line 24a is inputted, and it is judged from the transmission speed and the incoming level, and at the same time, it is judged whether the reading and recording are possible. Specifically, in FIG. 2, it is determined whether or not both the reading and recording of (reading and recording) are marked with a circle, and if both reading and recording are possible at the same time, the process proceeds to S88, and at the same time, reading and recording are performed. If not possible, the process proceeds to S54.

In S88, the reception and recording are transferred to the memory reception. Then, in S90, it is determined whether or not the memory reception is completed. If not completed, the process proceeds to S92, where the memory reception is continued, and when completed, the process proceeds to S94, the post-procedure is executed, and in S96, the signal is received. A signal of signal level "0" is output to the line 20a to turn off the CML.

In S98, it is determined whether or not the copying is completed. If the copying is not completed, the process proceeds to S100, and if it is completed, the S is performed.
Proceed to 104.

In S100, a copy operation is performed, and S10 is performed.
In step 2, it is determined whether or not the memory reception is completed. If completed, the process proceeds to S98, and if not completed, the process proceeds to S90. In S104, it is determined whether or not the memory reception is completed, and if completed, the process proceeds to S106, and if not completed, the process proceeds to S90.

In S106, the information received by the memory is recorded. Next, in S108, it is determined whether or not the recording of all information is completed. If not completed, the process proceeds to S106, and if completed, the process proceeds to S32.

In S114, it is determined whether or not the memory storage for memory transmission is selected. If not selected, the process proceeds to S54, and if selected, the process proceeds to S116.

In S116, the information on the signal line 24a is input, and it is judged from the transmission speed and the incoming level, and at the same time, it is judged whether or not the reading and recording are possible.
In (2), it is determined whether or not both the reading and recording of (reading and recording) are marked with a circle, and if the reading and recording are possible at the same time, the process proceeds to S118, and if the reading and recording are not possible at the same time, the process proceeds to S126.

In S118, it is determined whether or not the reception is completed, and when the reception is completed, the process proceeds to S58. If not completed, the process proceeds to S120 to receive and record the image signal. Then, in S122, it is determined whether or not the memory storage for the memory transmission is completed, and if completed, the process proceeds to S118, and if not completed, the process proceeds to S124, and the transmission information is stored in the memory.

In S126, it is determined by the operation unit 26 whether or not the memory storage for the memory transmission is prioritized over the recording operation at the time of reception. Then, the process proceeds to S78, the memory storage for the memory transmission is executed, and if there is no priority, the process proceeds to S54 to receive and record the image signal,
No memory is stored for memory transmission.

As described above, the dual processing can be performed within the range in which the current receiving speed does not drop even if the dual processing is performed by judging from the noise in the device according to the transmission speed at the time of reception and the incoming call level at that time. Therefore, it is possible to maximize the capability of the facsimile machine.

[0056]

As described above, according to the present invention,
There is an effect that an appropriate operation according to the capability of the device can be obtained according to the transmission speed and the incoming level.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a registration table of operations executed according to a transmission rate and an incoming call level in the above embodiment.

FIG. 3 is an explanatory diagram showing a calculation example for selecting the operation shown in FIG.

FIG. 4 is a flowchart showing the operation of the embodiment.

FIG. 5 is a flowchart showing the operation of the embodiment.

FIG. 6 is a flowchart showing the operation of the embodiment.

FIG. 7 is a flowchart showing the operation of the embodiment.

[Explanation of symbols]

 2 ... NCU (network control unit), 4 ... Telephone, 6 ... Hybrid circuit, 8 ... Modulator / demodulator, 10 ... ANSam signal sending circuit, 12 ... Addition circuit, 14 ... Read circuit, 16 ... Recording circuit, 18 ... Memory circuit, 20 ... Control circuit, 22 ... Incoming level detection circuit, 24 ... Registration circuit, 26 ... Operation part.

Claims (4)

[Claims] 1. A facsimile apparatus having a means for detecting a transmission speed for executing communication and a means for detecting an incoming level of a received signal, the external specifications of the facsimile apparatus according to the transmission speed and incoming level when facsimile reception is selected. A facsimile machine characterized by changing the. 2. The facsimile apparatus according to claim 1, wherein when the facsimile reception is selected, the memory reception operation or the reception immediate recording operation is determined by the transmission speed and the incoming level. 3. The method according to claim 1, wherein, when a memory storage operation for memory transmission is selected during execution of facsimile reception, whether or not the memory storage operation is performed is determined by a transmission speed and an incoming call level. A facsimile machine characterized by making a decision. 4. The facsimile apparatus according to claim 1, wherein, when a copy operation is selected during execution of facsimile reception, whether or not the copy operation is performed is determined based on a transmission speed and an incoming call level. .