JP3083053B2 - Facsimile machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus, and more particularly to a facsimile apparatus which performs transmission and reception operations using energy supplied from a telephone line.

[0002]

2. Description of the Related Art A conventional facsimile apparatus always performs transmission and reception operations by using an AC input power supply and battery energy even when performing transmission and reception operations that are sufficient with low power.

However, recently, the power consumption of each component has been reduced. For this reason, performing the transmission and reception operations always using the AC input power supply or the battery as in the related art has a great disadvantage that the cost increases for the user.

Here, the writer has proposed the following facsimile apparatus in Japanese Patent Application No. 5-307356 filed on Nov. 12, 1993.

[0005] First, in a facsimile apparatus provided with a storage means for storing image information, the image information stored in the storage means is transmitted to a partner receiver using energy supplied from a telephone line. Then, the image information transmitted from the partner transmitter is stored in the storage unit.

According to this, the transmission and storage of image information is
Low power is sufficient. Therefore, low power consumption can be achieved by using low power energy supplied from the telephone line.

Secondly, there are provided a reading means for reading image information from a document, a recording means for recording the received image information on a recording sheet, and a conveying means for conveying the original and the recording sheet. Using a power supply, the reading unit performs reading, and the recording unit performs recording.

[0008] According to this, reading and recording of image information involves transport of a document and a recording sheet, and therefore requires higher power than transmission and storage of image information. Therefore, image information can be read and recorded by using a high-power AC input power supply.

[0009]

However, in the above-mentioned conventional example, there is a drawback that the energy supply while the facsimile apparatus is on standby is unclear. That is, during the standby, the start factor is checked, but there is no description as to which energy is used.

An object of the present invention is to secure a standby power source for a facsimile apparatus that operates by receiving power supply from a telephone line in view of the above-mentioned problems.

[0011]

According to the first aspect of the present invention, reading means for reading a document, recording means for recording an image, and power generated from an AC input power supply are transmitted to the reading means and the recording means. A first power supply, communication means for communicating images via a telephone line, storage means for storing images,
A second power supply for supplying power supplied via a telephone line to the communication means, wherein the reading means comprises
An image obtained by reading an original with power supplied from a power supply is stored in the storage unit, the communication unit transmits the image stored in the storage unit with power supplied from the second power supply, and the communication unit Stores the image received by the power supplied from the second power supply in the storage means, and the recording means records the image stored in the storage means by the power supplied from the first power supply. In the apparatus, a call signal detecting means for detecting a call signal coming from a telephone line, a third power source for extracting electric power from the call signal, an operation means for performing key input by an operator, and detecting a key input of the operation means A key input detection unit, and a solar cell, wherein the call signal detection unit operates by the power of the third power supply, and detects the key input. Stage is operated by electric power of the solar cell.

[0012]

[0013]

[0014]

【Example】

(First Embodiment) An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a facsimile apparatus according to the present invention. This facsimile machine 1
As shown in FIG. 1, a network controller (hereinafter referred to as "NCU ((Network Control Uni)
t)), and N
The telephone 3 is connected to the CU 2. This NCU
Reference numeral 2 is used to control connection of a telephone exchange network by connecting to a terminal of the line, switch to a data communication route, and maintain a loop in order to use a telephone network for data communication and the like. A control circuit 7 of the facsimile machine 1 described later
Control, the telephone line 2a is connected to the telephone 3 or the facsimile machine 1. That is,
The NCU 2 receives the signal on the signal line 7a from the facsimile machine 1, and if the signal level is "0", connects the telephone line 2a to the telephone 3 side, that is, connects the telephone line 2a to the signal line 2b. When the signal level of the signal line 7a is "1", the telephone line 2a is connected to the facsimile apparatus 1, that is, the telephone line 2a is connected to the signal line 2c. In a normal state, the telephone line 2a is connected to the telephone 3
Connected to the side.

If no voltage is supplied to NCU2, CCU
ML is turned off.

As shown in FIG. 1, the facsimile apparatus 1 includes a hybrid circuit 4 connected to the NCU 2, a transmission system 5 and a reception system 6 respectively connected to the hybrid circuit 4, an NCU 2, and each part of the apparatus 1. A control circuit 7 to be controlled, and a storage button 8, a numeric keypad 9, a set key 10, a display unit 11, a storage circuit 12, a detection circuit 13, an output button 14, a call signal detection circuit 19, and a key connected to the control circuit 7 And a voltage a generation circuit 15, a voltage b generation circuit 16, a voltage c generation circuit 18, and a voltage d generation circuit 20 for supplying power to each unit of the device 1. It is configured.

The hybrid circuit 4 separates the signal of the transmission system 5 from the signal of the reception system 6. That is,
The hybrid circuit 4 sends a transmission signal on the signal line 56a from the transmission system 5 to the telephone line 2a via the signal line 2c and the NCU 2, and also transmits a signal transmitted from the other party via the telephone line 2a. After passing through the NCU 2, the signal is output to the signal line 4a of the receiving system 6 through the signal line 2c.

The transmission system 5 includes a signal line 7 from a control circuit 7.
b, the procedural signal transmitted by the known ITU-T Recommendation V
A first modulator 50 that modulates the signal based on the signal 21 and outputs the signal to a signal line 50a, an image pickup device such as a CCD (Charge Coupled Device), and an optical system. And a reading circuit (reading means) 51 for sequentially generating black and white binary signal sequences and outputting the black and white binary signal sequences to a signal line 51a, and a reading circuit output to the signal lines 51a. A transmission side encoding circuit 52 that inputs data and outputs encoded (MH (Modified Huffman) encoding) or MR (Modified Read encoding) data to a signal line 52a, and transmits the data under control of a signal line 7c. In addition to storing the encoded data from the side encoding circuit 52, the encoded data stored in the transmission side memory circuit 53, which is a nonvolatile memory such as a flash memory, is transmitted in accordance with the control of the signal line 7c. The transmission side memory circuit (memory means) 53 for outputting to line 53a, in accordance with the support of the signal lines 7d,
The data output to the signal line 53a is input, decoded once, scaled, and encoded data is transferred to the signal line 54a.
a, a decoding / magnification / encoding circuit 54 and a signal on a signal line 54a.
UT recommendation V27ter (differential phase modulation) or V29
A second modulator 55 that performs modulation based on (quadrature modulation) and outputs the modulated data to a modulated data signal line 55a;
a and a signal line 55a, and an addition circuit 56 that outputs the result of addition to the signal line 56a.

The receiving system 6 receives a signal on the signal line 4a, demodulates the signal based on the known ITU-T Recommendation V21, and outputs the demodulated data to a signal line 60a. The signal of the signal line 4a is input and a known ITU
A second demodulator 61 that performs demodulation based on -T Recommendation V27ter (differential phase modulation) or V29 (quadrature modulation) and outputs the demodulated data to a signal line 61a;
A first decoding circuit 62 that inputs the signal output to the first line and outputs decoded (MH (Modified Huffman) decoded) or MR (Modified Read) decoded data to a signal line 62a; A receiving side encoding circuit 63 which receives the data outputted on the line 62a, and outputs MR encoded data of K = 8 to a signal line 63a;
In accordance with the control of the signal line 7e, the encoded data output to the new line 63a is stored, and in accordance with the control of the signal line 7e, the data stored in the receiving side memory circuit 64 which is a non-volatile memory such as a flash memory is transmitted. A receiving-side memory circuit (storage means) 64 for outputting to a line 64a;
4a is input and decoded (MH (Modified Huffman) decoding) or MR (Modified Read) decoding) is input to a signal line 65.
a, and a recording circuit 66 for inputting the data output to the signal line 65a and sequentially recording the data one line at a time.

When a signal of level "0" is output to the signal line 7j, the recording circuit 66 inputs the data output to the signal line 65a and performs recording one line at a time. When the signal of level "1" is output on the line 7j, the read information output on the signal line 51a is sequentially recorded.

The storage button 8 is used to store the time at which the reception information stored in the reception side memory circuit 64 is collectively recorded in the storage circuit 12, and when the button 8 is pressed, a signal is issued. A press pulse is generated on the line 8a.

The numeric keypad 9 outputs information on the numeric keypad that has been pressed, to a signal line 9a.

When the set key 10 is depressed, the signal line 1
A pressing pulse is generated at 0a.

The display section 11 receives and outputs data output to the signal line 7f.

The storage circuit 12 is for registering the time at which the reception information stored in the reception side memory circuit 64 is collectively recorded. For example, ten registration times 0 to 9 are considered. When registering the time to be recorded in the storage circuit 12, the recording time number (one from 0 to 9, for example, 1) to be registered in the signal line 12a, a space,
After outputting the output time (for example, 20:00),
A write pulse is generated on the signal line 7g. When reading information registered in the storage circuit 12, the signal line 1
When a read pulse is generated on the signal line 7h after outputting the recording time number (for example, 1) registered in 2a, the time stored in correspondence with this time number, for example, 20: 0
0 is output to the signal line 12a. This storage circuit is a nonvolatile memory such as a flash memory.

The detection circuit 13 is a circuit for detecting that the user is near the facsimile apparatus 1, and when the user is near the facsimile apparatus 1, the signal line 1 is detected.
A signal of signal level "1" is output to 3a, and a signal of signal level "0" is output to signal line 13a when the user is not near facsimile machine 1.

The output button 14 is connected to the receiving memory circuit 64
When the button 14 is pressed, a pressing pulse is generated on the signal line 14a.

The voltage a generating circuit 15 receives the signal line 2b or 2c, inputs the energy of the DC voltage from the telephone line 2a to generate a predetermined voltage a, and outputs the predetermined voltage a to the NCU 2, the hybrid circuit 4, Control circuit 7, first modulator 50, transmission side memory circuit 53, decoding / magnification / encoding circuit 54, second modulator 55, addition circuit 56, first demodulator 60, second demodulation Unit 61, first decoding circuit 6
2. It is supplied to the receiving side encoding circuit 63 and the receiving side memory circuit 64.

The transmission-side memory circuit 53 and the reception-side memory circuit 64 are flash memories, and need only supply energy when reading or writing. The stored contents are not erased even if energy is not supplied.

The voltage b generating circuit 16 oscillates the switching power supply when the signal of the signal level "1" is output to the signal line 7i, and generates the predetermined voltage b from the AC input power supply from the AC 100V outlet 16a. Then, the predetermined voltage b is supplied to the control circuit 7, the display unit 11, the storage circuit 12, the reading circuit 51, the transmission-side encoding circuit 52, and the transmission-side memory circuit 5.
3. The data is supplied to the receiving side memory circuit 64, the second decoding circuit 65, and the recording circuit 66.

In the storage circuit, the transmission side memory circuit 53 and the reception side memory circuit 64 are flash memories,
Energy only needs to be supplied when writing. The stored contents are not erased even if energy is not supplied.

The voltage b generating circuit 16 is connected to the signal line 7i
Is output at the signal level "0". Alternatively, if no voltage is supplied, the switching power supply
No oscillation occurs and no voltage b is generated.

Reference numeral 17 denotes a solar cell which outputs solar energy to a signal line 17a. Reference numeral 18 denotes a voltage c generation circuit which receives solar energy output to the signal line 17a, generates a predetermined voltage c, and outputs the predetermined voltage c to the control circuit 7, the storage button 8, the numeric keypad 9, the set key 10, It is supplied to the storage circuit 12 and the operation unit 21. The storage circuit 12 is a flash memory and needs to supply energy only when reading or writing. Memories are not erased without energy.

Reference numeral 19 denotes a circuit for detecting a call signal output to the signal line 2b. When a call signal is detected, a signal of signal level "1" is output to the signal line 19a to detect the call signal. Otherwise, a signal of signal level "0" is output to the signal line 19a. Also, it outputs the energy of the calling signal to the signal line 19b.

Reference numeral 20 denotes a voltage d generating circuit, and the signal line 1
A predetermined voltage d is generated by inputting the energy of the call signal output to 9b, and the predetermined voltage d is supplied to the control circuit 7 call signal detection circuit 19.

Reference numeral 21 denotes an operation unit which detects pressing of various keys such as a one-touch dial, abbreviated dial, a start key, and a copy button.
output to a. Also, the presence / absence information of the document information is output to the signal line 21a.

The control circuit 7 uses the energy supplied from the solar cell, the energy supplied from the telephone line, and the energy supplied from the AC input power supply to depress key information during standby in a facsimile that performs various controls. Is performed by the energy (predetermined voltage c of the voltage c generation circuit) supplied from the solar cell, and the detection of the call signal during standby is performed by the energy (energy of the call signal) supplied from the telephone line (the energy of the voltage d generation circuit). Predetermined voltage d)
Performed by

Energy supplied from an AC input power supply for reading and recording image information (predetermined voltage b of voltage b generating circuit)
This is done using. Here, the image information read by the reading circuit 51 is encoded by the transmission-side encoding circuit 52 and stored in the transmission-side memory circuit 53. When transmitting the image information stored in the transmission side memory circuit 53, the CML is turned on, the DC loop is captured, and the telephone line 2
The image information stored in the transmission-side memory circuit 53 is transmitted by the energy supplied from a (the predetermined voltage a of the voltage a generation circuit). Also, in the case of reception, similarly, CML
Is turned on to capture the DC loop, and the received information is stored in the receiving side memory circuit 64 by the energy (predetermined voltage a of the voltage a generating circuit) supplied from the telephone line 2a. After storing the received information in the receiving side memory circuit 64, the signal line 7
j, a signal having a signal level “0” is output, and information output from the signal line 65a is input using an energy (predetermined voltage “b” of the voltage “b” generating circuit) supplied from an AC input power supply, and a recording circuit is input. 66 is performed on recording paper.

When the signal of the signal level "1" is output to the signal line 7j, the read information output to the signal line 51a is input to perform the copy operation.

Here, the control circuit 7 determines the predetermined voltages a, b, c,
If any one of d is supplied, operation is possible.

The energy of the DC voltage from the line is supplied at 48 V from the exchange and can secure 20 mA min. Therefore, the total resistance value is about 2.4 kΩ, and the DC resistance of the facsimile is about 200 Ω. Is min i ² R = 20 mA / 20 mA / 200 = 8
0 mw. Here, the transmission level is 0d at maximum.
Since Bm = 1 mw, if 80 mw, communication is possible.

In FIG. 1, for convenience, a control circuit (1/2)
And (2/2), but is actually one circuit.

FIGS. 2 to 7 show control flowcharts of the control circuit 7 of FIG.

In FIG. 2, S60 represents the beginning.

In S62, since the predetermined voltage is not supplied to the NCU 2, the CML is turned off.

In S64, since the DC loop is not captured, the generation circuit 15 for the voltage a does not output the predetermined voltage a.

In S68, if the light is bright, the solar cell 17
A predetermined voltage c is output by the voltage C generation circuit 18 using the energy of Here, when dark, the predetermined voltage c is not output. However, when a key on the operation unit is pressed,
It is a bright case. Also, the automatic incoming call is activated by the energy of the call signal from the line, so that it can be received even in the dark.

In step S70, when the calling signal is being generated, the energy from the calling signal detecting circuit 19 is used.
The voltage d generating circuit 20 outputs a predetermined voltage d.

In S72, based on the information on the signal line 21a,
It is determined whether or not the copy button has been pressed. If the copy button has been pressed, the process proceeds to S74. If the copy button has not been pressed, the process proceeds to S80. This determination is made based on the voltage c.

In S74, a signal of signal level "1" is output to the signal line 7i, and the switching power supply is oscillated.
A predetermined voltage b is output.

At S76, a signal level "1" is added to the signal 7j.
, The read information (the information on the signal line 51a) is sequentially recorded, and the copying operation is performed.

In S78, a signal of signal level "0" is output to the signal line 7i, the oscillation of the switching power supply is stopped, and the predetermined voltage b is not output.

In s80, based on the information on the signal line 21a,
It is determined whether or not transmission is selected, and if transmission is selected, the process proceeds to s82, and if transmission is not selected, the process proceeds to S104. This determination is made based on the voltage c.

In S82, a predetermined voltage b is output under the same control as in S74. The subsequent reading operation is performed at the predetermined voltage b.

In S84, the read information is encoded and stored in the transmission side memory circuit 53.

In S86, it is determined whether or not reading of all pages has been completed.
8 and if all pages have not been read, S84.
Proceed to.

In S88, a signal of signal level "1" is output to the signal line 7a, and the CML is turned on.

At S90, by turning on the CML,
Since the DC loop is captured, the voltage a generation circuit 15 outputs a predetermined voltage a.

Step S92 corresponds to step S78 in FIG. 3, and the predetermined voltage b is not output. Subsequent communication (memory transmission) is performed at the predetermined voltage a.

S94 represents a pre-procedure.

In step S96, the information stored in the memory circuit 53 is scaled and re-encoded as necessary, and transmitted.

S98 represents a post-procedure.

In S100, a signal of signal level "0" is output to signal line 7a, and CML is turned off.

In S102, since the DC loop is released by turning off the CML, the generation circuit 15 for the voltage a does not generate the predetermined voltage a but enters a standby state.

In S104, the information output to signal line 21a is input, and it is determined whether reception is selected. When reception is selected, the process proceeds to S106, and when reception is not selected, the process proceeds to S130. This is the voltage c
Judge by

In S106, a signal of signal level "1" is output to signal line 7a, and CML is turned on.

S108 represents FIGS. 4 and 590. Since the DC loop is captured by turning on the CML, a predetermined voltage a is output.

Step S110 represents a pre-procedure. Subsequent communication (memory reception) is performed at the predetermined voltage a.

In S112, the received information is stored in the memory line 64
Is stored.

Step S114 represents a post-procedure.

S116 is the same control as S74 in FIG.
A predetermined voltage b is output. Subsequent recording of the received information is performed at the predetermined voltage b.

In S118, a signal of signal level "0" is output to signal line 7a, and CML is turned off.

In S120, the DC loop is released by turning off the CML under the same control as S102 in FIG.
The predetermined voltage a is not output.

In step S122, a signal of signal level "0" is output to the signal line 7j, and the reception information is set to be recorded.

S124 indicates that the information stored in the memory circuit 64 is recorded.

In S126, it is determined whether or not recording of all pages has been completed.
If the recording has not been completed for all pages,
Proceed to 4.

S128 is the same control as S78 in FIG.
Does not output the predetermined voltage b.

In S130, it is determined whether or not the information on the signal line 19a is input to detect the calling signal. If the calling signal is detected, the process proceeds to S134 (S106 in FIG. 5), and if the calling signal is not detected, the process proceeds to S132. To perform other processing. This determination is made based on the predetermined voltage d.

(Second Embodiment) In the first embodiment,
The transmission side memory line 53, the reception side memory circuit 64, and the storage line are flash memories and non-volatile memories.
As a result, even if the AC power is turned off once after the reading, the memory transmission can be performed by the energy from the capture of the DC loop. In addition, the capture of the DC loop makes it possible to turn on the AC power supply and record after a while after receiving the data in the memory.

[0081]

As described above, according to the present invention,
In a facsimile apparatus which performs transmission and reception with power supplied from a telephone line and reads and records with power from an AC input power supply, detection of a call signal arriving from the telephone line is performed using energy of the call signal, and a key of an operator is used. Since the input is detected by the solar cell, an energy source for monitoring the ringing signal during standby and an energy source for detecting the key input are identified.
The consumption of the C input power can be suppressed.

[0082]

[0083]

[Brief description of the drawings]

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

FIG. 2 is a control flowchart of a control circuit 7 of FIG. 1;

FIG. 3 is a control flowchart of a control circuit 7 of FIG. 1;

FIG. 4 is a control flowchart of the control circuit 7 of FIG. 1;

FIG. 5 is a flowchart of control by a control circuit 7 in FIG. 1;

FIG. 6 is a flowchart of the control of the control circuit 7 in FIG. 1;

FIG. 7 is a control flowchart of the control circuit 7 of FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 facsimile device 2 NCU 3 telephone 4 hybrid circuit 8 time storage button for collectively recording received information 9 numeric keypad 10 set key 11 display unit 12 time storage circuit for collectively recording received information 13 user is near Circuit 14 for detecting the occurrence of information 14 Received information output button 15 Voltage a generation circuit 16 Voltage b generation circuit 17 Solar cell 18 Voltage c generation circuit 19 Call signal detection circuit 20 Voltage d generation circuit 21 Operation unit 50 First modulator 51 Reading Circuit 52 Transmission-side encoding circuit 53 Transmission-side memory circuit 54 Decoding, scaling, encoding circuit 55 Second modulator 56 Addition circuit 60 First demodulator 61 Second demodulator 62 First decoding circuit 63 receiving side encoding circuit 64 receiving side memory circuit 65 second decoding circuit 66 recording circuit

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04N 1/00

Claims (1)

(57) [Claims] A reading means for reading a document; a recording means for recording an image; a first power supply for supplying power generated from an AC input power supply to the reading means and the recording means; A communication unit for communicating, a storage unit for storing an image, and a second power supply for supplying power supplied through a telephone line to the communication unit, wherein the reading unit is supplied from the first power supply. Storing an image obtained by reading an original with the power stored in the storage unit,
The communication unit transmits an image stored in the storage unit using power supplied from the second power supply, and the communication unit transmits an image received using power supplied from the second power supply to the storage unit. A facsimile apparatus for recording an image stored in the storage unit using power supplied from the first power supply, wherein the recording unit detects a call signal coming from a telephone line; A third power source for extracting power from a call signal; operating means for performing key input by an operator; key input detecting means for detecting key input of the operating means; and a solar cell; A facsimile apparatus which operates by power of a third power supply, and wherein the key input detecting means operates by power of a solar cell. .