JPH0583456A - Cordless facsimile equipment - Google Patents

Abstract

PURPOSE:To improve convenience by enabling the remote operation of a facsimile slave station by another slave station in cordless facsimile equipment in which a master station is composed of a plural slave station type cordless telephone with a single radio facility and the slave station is equipped with a facsimile function. CONSTITUTION:Control information from another slave station to the facsimile slave station is transmitted to the master station 3 by attaching the identification number of the facsimile slave station. A data identification part 309 detects the identification number, and issues an instruction to store the control information once in memory 311 to a write address generating part 307. At this time, the flag of a transfer flag register 308 in accordance with a time slot allocated to the facsimile slave station in time division communication is set. The master station 3 transfers the control information stored in the memory to the facsimile slave station by performing the connection control of a time division control part 310 when the flag is set in the allocation period of the facsimile slave station in the time division communication.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone having a plurality of slave stations, and more particularly to a cordless facsimile machine in which one of the slave stations is a facsimile machine.

[0002]

2. Description of the Related Art FIG. 13 is a diagram showing an example of a system configuration of a conventional plural slave station type cordless telephone. In FIG. 13, 1 is a general subscriber telephone network, 2 is a wired communication line, 200 is a connection device,
201 and 202 are slave stations, 203 and 205 are control devices,
Reference numerals 204 and 206 denote wireless equipment composed of transmitting and receiving devices. Further, reference numerals 207 and 208 denote radio channels assumed for explanation. This system performs a call between a telephone of the general subscriber telephone network 1 and one of a plurality of slave stations. Therefore, the general subscriber telephone network 1 is connected to the connection device 200 by a wired communication line 2, and a plurality of slave stations. It performs duplex communication with one of the stations. Connection device 20
Reference numeral 0 denotes a control device 203 which is connected to the wired communication line 2 and controls the interface with the telephone line and the wireless line.
Based on the control of the control device 203, each slave station 201, 202
It is composed of the wireless equipment 204 for communicating with. Child station 2
01 is a wireless facility 206 for communicating with the connection device 200.
And a control device 205 for controlling the wireless line,
The slave station 202 is also equivalent. In addition, the wireless equipment 204, 20
6 is capable of setting a single wireless line composed of a duplex system.

For the application of this system, the slave station 201 and the slave station 20 by the half-duplex system in which the connection device 200 loops back.
Mutual communication between the two is conceivable. For example, as shown in FIG. 13, the uplink 207 and downlink 208 wireless channels are set up, and the transmission signal of the slave station 201 is received by the slave station 202. The mutual communication between these slave stations is based on the Foundation, Radio System Development Center 2
50MHz / 380MHz band cordless telephone radio station radio equipment standard (RCR STD-13) ", 3
Banned as described on page.

In order to carry out mutual communication between the slave stations, the connection device 200 is provided with a plurality of wireless equipments, and two or more lines of the duplex system between the plurality of wireless equipments and each slave station are independently set. It was necessary to go through the connection device 200. On the other hand, a facsimile machine is provided (not shown). This apparatus is composed of a scanning unit for reading a document, a recording unit for reproducing an image, and a line connecting unit for transmitting and receiving an image through a line. Of these, the scanning means and the recording means are the places for interfacing with the user. For this reason, if the location of the location is not fixedly limited but can be moved according to the needs of the user, convenience is improved.

In response to this request, it has been devised that the line connection means is used as a connection device, the scanning means and the recording means are used as slave stations, and both are connected by a wireless line. For example, it is disclosed in "Facsimile apparatus" described in Japanese Patent Laid-Open No. 2-146856.

[0006]

A system in which one slave station of the plural slave station type cordless telephone shown in FIG. 13 is provided with a slave station (hereinafter referred to as a facsimile slave station) having both the scanning and recording means. Assume the configuration. At this time, the slave stations other than the facsimile slave station are, for example, handsets equipped with a handset.

When the user transmits an image, not only the facsimile slave station main body can be operated but also the facsimile transmission can be controlled from the handset, the convenience is further improved. However, the semi-duplex communication between the handset and the facsimile slave station is prohibited by the above-mentioned standard.

In this case, by providing a plurality of wireless equipment inside the connection device and allocating the wireless equipment to each of the facsimile slave station and the handset, control from the handset via the connection device is permitted. However, the circuit scale and cost of the connection device increase.

An object of the present invention is to provide a connection device provided with a single radio equipment, a handset and a facsimile slave station connected to the connection device by a radio line, without using the half-duplex system, and from the handset to the facsimile. An object of the present invention is to provide a cordless facsimile device capable of controlling a slave station.

[0010]

In order to achieve the above object, the connection device performs time division communication with each of a plurality of slave stations in a common frequency channel, and each slave station only duplicates its own allocation period. Independently set the wireless communication line. At this time, mutual communication between the slave stations is performed by temporarily storing information in the connection device. That is, a cordless telephone system including a connection device (hereinafter referred to as a master station) connected to a general telephone network by a wired communication line, and a plurality of slave stations connected to the master station by a wireless line of a duplex system. Where one of the slave stations is a facsimile slave station having a facsimile function including image recording and reproducing means, and one of the other slave stations is a handset equipped with a handset. In the device, the master station generates a time-division synchronization signal that serves as a reference for time-division synchronization, and a unit of time calculated based on the time-division synchronization signal is used as a unit from a plurality of unit periods assigned to each slave A burst signal composed of transmission information that constitutes a time-division frame and is transmitted by a wired communication line and control information that instructs the setting of the wireless line and the operation of each slave station is used for the duplex communication with each slave station. What communicates Therefore, the data identification means for detecting the logical destination of the control information contained in the control information from the received burst signal and outputting the value indicating the destination, and the control received according to the output of the data identification means Each slave station is provided with data storage means for storing information, and each slave station is provided with transmission timing control means for detecting the time division synchronization signal received from the master station and subordinately synchronizing the transmission operation of the slave station with the master station. The operation control information according to the operator's input is transmitted to the master station by adding a logical destination indicating the control target in the control information.

Further, because of the time division communication, the encoded signal is time-compressed for transmission, including the transmission information for the cut-out time of the signal and the control information to be transmitted at the same time. on the other hand,
At the time of decoding, a time extension operation corresponding to the cutout time is required. For time compression, the master station and each slave station are provided with burst generation means for inputting control information and transmission information, and for time expansion, data separation means for separating control information and transmission information from the received burst signal is provided. ,
Each is executed.

[0012]

With the above construction, the facsimile slave station is controlled from the handset as follows.

(1) Stage of establishing slave synchronization between facsimile slave station and handset When the master station transmits a time division synchronization signal to each slave station, the transmission timing control means of each slave station transmits the synchronization signal. When detected, the transmission output timing of each slave station is adjusted to match the reception time designated by the master station. Here, the transmission operation is instructed in the allocation unit period in the time division frame specified by the time division synchronization signal and the preset identification number unique to the own station.

At this point, a time-independent duplex radio system with the master station can be set up for each slave station.

(2) Step where control information is once stored in the master station The control information corresponding to the operation input of the handset passes through the burst generation means in a format in which an identification signal indicating the destination is a facsimile slave station is attached. Sent to the master station. In the master station, the data identifying means detects the identification signal and outputs a value indicating the facsimile slave station. As a result, the control information is stored in the area of the data storage means provided for the facsimile slave station.

(3) Stage in which the control information is transferred to the facsimile slave station In the transmission of the master station, the time division allocation is the transmission period to the facsimile slave station, and the facsimile is output based on the output of the data identification means. When the accumulation of control information to the slave station is indicated,
A burst signal is generated based on the transmission information to be transmitted during this period and the accumulated control information. Therefore, the control information received from the handset is transferred to the facsimile slave station.

(4) Step of receiving by facsimile, in the facsimile slave station, the control information is extracted through the data separating means, and the processing according to the control information is executed.

By the operations of the respective means shown in (1) to (4) above, it is possible to perform remote control of the facsimile slave station from the handset which does not use the semi-duplex system. Therefore, the installation location of the facsimile slave station can be set more freely and convenience is improved.

[0019]

EXAMPLES Examples of the present invention will be described below. FIG. 1 is a schematic diagram showing the configuration of a cordless facsimile apparatus according to a first embodiment of the present invention. 1 is a general subscriber telephone network, 2 is a wired communication line, 3 is a master station of the cordless facsimile apparatus, 4
Indicates a handset, and 5 indicates a facsimile slave station.
The cordless facsimile apparatus of the present invention comprises a master station 3, a handset 4, and a facsimile slave station 5 shown in FIG. 1 as three constituent elements. In particular, one of the plurality of slave stations is provided with a facsimile slave station 5 having a facsimile function, and the operation of the facsimile slave station 5 can be controlled by the handset 4 which is the other slave station. Furthermore, handset 4 or facsimile slave station 5
Is connected to the master station 3 by a duplex wireless line and communicates with other telephones of the general subscriber telephone network 1 through a wired communication line 2. The internal configuration and operation of each block of the first embodiment will be described below.

FIG. 2 is a block diagram showing the configuration of the master station 3 of the first embodiment. In the figure, 301 is a connection part, 3
02 is a coding unit, 303 is a control unit, 304 is a decoding unit, 30
5 is a data separation unit, 306 is a burst generation unit, 307 is a write address generation unit, 308 is a transfer flag register,
309 is a data identification unit, 310 is a time division control unit, 311
Is a memory, 312 is a switch, 313 is a receiver, 314
Is a transmitter, 315 is a read address generator, 316 is a demultiplexer, and 317 is a common antenna for transmission and reception. 2 is a wired communication line and 3 is a master station.

The wired communication line 2 is connected to the connection section 301. The connection unit 301 interfaces with a telephone signal (referred to as a transmission signal) transmitted by the wired communication line 2, receives a transmission signal to the coding unit 302, and transmits a transmission transmission signal output from the decoding unit 304 to the wired communication line 2. Connecting. Connection part 301
Further, the line connection operation for the general telephone network at the time of incoming and outgoing calls is executed.

The received transmission signal is received by the encoding unit 302 in
The burst coding unit 306 performs the compression coding of each sampled signal suitable for the type of the transmission signal such as the voice signal or the facsimile signal in units of a preset clipping time, and digitized transmission information.
Is output to. On the other hand, the operation state of the connection unit 301 is monitored by the control unit 303. The control unit 303 has a connection unit 30.
Control information for setting the wireless line according to the state 1 and controlling the operation of the slave station via the wireless line is output to the burst generation unit 303.

The burst generation unit 306 assembles a burst signal to be transmitted in a unit period of time division based on the control information from the control unit 303 and the transmission information from the encoding unit 302, and sets the time so that the burst signal can be transmitted within the unit period. The compressed data string is connected to one input of the switch 312.

The other input of the switch 312 is the memory 3
11 data outputs are connected. The switch 312 connects the burst generator 306 and one of the two inputs from the memory 311 to the transmitter 314. The connection selection control of the switch 312 is performed by the control output of the time division control unit 310 to which the setting content of the transfer flag register 308 is input.

The other output of the time division control unit 310 is connected to the read address generation unit 315. The read address generation unit 315 gives an address signal for sequentially reading the control information stored in the specific area of the memory 311 according to an instruction from the time division control unit 310.

The signal output from the switch 312 is sequentially digitally modulated by the transmitter 314, frequency-converted to a transmission frequency and high-frequency amplified, input to the demultiplexer 316, and input to the demultiplexer 316. It is transmitted from the connected transmitting / receiving shared antenna 317.

Next, the received signals from the facsimile slave station 5 and the handset 4 received by the transmission / reception shared antenna 317 are input to the receiver 313 via the demultiplexer 316. In the receiver 313, the detection operation is performed and the demodulated signal is output to the memory 311, the data identification unit 309, and the data separation unit 305, respectively.

The data identification section 309 detects the identification signal indicating the destination of the data contained in the demodulated signal and outputs the value indicated by the identification signal. The output of the data identification unit 309 is input to the data separation unit 305, the write address generation unit 307, and the transfer flag register 308, respectively.

The write address generator 307 is used for the memory 3
An address signal for sequentially storing the control information included in the demodulated signal is given to the area uniquely specified by the output value of the data identification unit 309 of No. 11.

The transfer flag register 308 is provided with the same number of flags as the number of allocation divisions of the unit period constituting the time division frame. The register 308 sets a flag corresponding to the position of the unit period assigned to the destination slave station indicated by the input value.

On the other hand, the demodulated signal input to the data separation unit 305 is separated into control information and transmission information when the output value of the data identification unit 309 indicates the master station, and is sent to the control unit 303 and the decoding unit 304, respectively. Is output to. Decoding unit 304
Is converted into an analog transmission signal by a decoding algorithm according to the type of transmission information. This analog signal is sent to the wired communication line 2 via the connection unit 301.

In particular, the time division control unit 310 operates as follows. When the data identification unit 309 detects that the destination of the control information of the demodulated signal is the facsimile slave station, the write address generation unit 307 stores the control information in the specific area of the memory 311 provided for the facsimile slave station. The address signal is output as follows. At the same time, the transfer flag register 308 sets the flag corresponding to the position of the unit period assigned to the facsimile slave station to the'Hi 'level.
The register 308 is a bit string image provided with flags corresponding to respective allocation periods.

Next, the time division control unit 310 selects and controls the transmission information of each unit period in synchronization with the reception operation of the master station. For example, when the flag of the transmission unit period at the position assigned to the facsimile slave station 5 by decoding the value of the transfer flag register is set to the “Hi” level, the control information transmission period to the facsimile slave station 5 is transmitted. , Switch 312
The switch 312 is controlled so that the output of the above is connected to the data output side of the memory 311. Furthermore, the memory 31
The read address generating unit 315 is instructed to read the control information stored in 1 for the facsimile slave station 5.

Therefore, the control information for the facsimile slave station 5 transmitted from the handset 4 is once accumulated and then transmitted from the master station 3.

FIG. 3 is a block diagram showing the configuration of the handset 4 in the first embodiment. 4 in FIG.
01 is an audio unit, 402 is an operation unit, 403 is a decoding unit, 404 is a control unit, 405 is an encoding unit, 406 is a data separation unit, 407 is a transmission timing control unit, 408 is a burst generation unit, 409 is an identification number register, 410 is a receiver, 411 is a transmitter, 412 is a demultiplexer, 413 is a common antenna for transmission and reception, and 4 is a handset.

The structure of the handset 4 is as follows. The modulated wave from the master station 3 is received by the transmission / reception shared antenna 413 and is input to the receiver 410 by the demultiplexer 412. In the receiver 410, the detection operation is performed, and the demodulated signal is transmitted to the transmission timing control unit 407 and the data separation unit 406.
Output to. The transmission timing control unit 407 is also connected to an identification number register that stores the identification number individually given to each slave station. The transmission timing control section 406 detects the time division synchronizing signal included in the demodulated signal and outputs the transmission timing clock calculated from the identification number of the own station. The transmission timing clock is input to the burst generation unit 408 as a transmission permission command. On the other hand, the demodulated signal input to the data separation unit 406 is separated into control information and transmission information, and the control unit 404 and the decoding unit 403 respectively.
Is output to. The control unit 404 executes a predetermined process of the slave station 4 according to the input control information. The decoding unit 403 decodes the input signal and outputs an analog audio signal to the audio unit 401. The audio unit 401 amplifies the analog audio signal and obtains an output to a receiver provided.

The audio input from the microphone provided in the audio section 401 is subjected to band limitation and amplification processing, and the encoding section 40 is used as an analog transmission signal to be a transmission voice.
It is output to 5. The encoding unit 405 encodes the transmission information by the encoding algorithm suitable for the voice signal and outputs the transmission information to the burst generation unit 408. To the burst generator 408,
In addition, the control information output by the control unit 404 is input. An identification number register 409 is connected to the control unit 404, and the identification number of the slave station corresponding to the logical destination is added to the control information. Burst generator 4
Reference numeral 08 denotes an error correction code based on the control information from the control unit 404 and the transmission information from the encoding unit 405, assembles a burst signal to be transmitted in one unit period, and a transmission permission clock by the transmission timing control unit 407. By signal input,
A data string of a burst signal that is time-compressed to a predetermined transmission rate that matches the time length of one unit period is output to the transmitter 411. The transmitter 411 digitally modulates the input data string, frequency-converts it to a transmission frequency and high-frequency amplifies it, and outputs it to the demultiplexer 412. The output of the transmitter 411 is shared by the demultiplexer 411. It is transmitted from the antenna 413 to the master station 3.

In the handset 4, the operation unit 402 for key input is connected to the audio / control unit 404. The control unit 404 outputs control information necessary for line control in response to a key input on the operation unit, or sets a signal path of the audio unit, an intermittent control, and an output level.

In this configuration of the handset 4, the operating section 402 comprises control keys for the facsimile slave station. By inputting the control key, the control unit 404 operates so as to add the identification number of the facsimile slave station 5 to the control information for the facsimile slave station 5 and transmit it to the master station.

FIG. 4 shows a facsimile slave station 5 of the first embodiment.
3 is a block diagram showing the configuration of FIG. 501 in FIG.
Is a facsimile unit, 502 is an audio unit, 503 is an operation unit, 504 is a decoding unit, 505 is a control unit, 506 is an encoding unit, 507 is a data separation unit, 508 is a transmission timing control unit, 509 is a burst generation unit, and 510 is An identification number register, 511 is a receiver, 512 is a transmitter, 513 is a duplexer, 514 is a common antenna for transmission and reception, and 5 is a facsimile slave station.

The structure is as follows. The transmission wave from the master station received by the transmission / reception shared antenna 514 is input to the receiver 511 via the demultiplexer 513. The demodulation output of the receiver 511 is input to the data separation unit 508 and the transmission timing control unit 508. Data separation unit 508
Has two outputs, control information and transmission information, and is connected to the control unit 505 and the decoding unit 504, respectively. Decoding unit 504
According to the type of transmission information, the decoded facsimile signal is output to the facsimile unit 501 and the voice signal is output to the audio unit 502. The facsimile unit 501 and the audio unit 502 are controlled by the control unit 505, and the key input from the user is performed by the operation unit 503 connected to the control unit 505. The control unit 505 is an operation unit 503.
Output control information for controlling a wireless line with the master station, or control of facsimile terminal functions such as setting of signal paths of the facsimile unit 501 and the audio unit 502, intermittent control, and setting of signal level. I do. The control unit 505 also performs processing of the facsimile slave station 5 according to the control information received from the master station 3.

The facsimile signal output by the facsimile unit 501 and the transmission voice output by the audio unit are input to the encoding unit 506. The encoding unit 506 performs encoding according to the type of the input transmission signal and outputs it as transmission information to the burst generation unit 509. The burst generation unit 509 combines with the control information output from the control unit 505 to generate a burst signal to be transmitted in one unit period. At this time, it is assumed that the control information is added with an identification number that identifies a logical destination. The identification number is supplied from the identification number register 510 connected to each of the control unit 505 and the transmission timing control unit 508.

The burst generator 509 time-compresses the data sequence of the burst signal so as to obtain a predetermined transmission rate,
Output to the transmitter 512. The output timing is permitted by the transmission clock output from the transmission timing control unit 508 equivalent to the transmission timing control unit 407 of the handset 4 in the unit period assigned to the facsimile slave station 5 defined by the master station.

The transmitter 512 sequentially digitally modulates the input data string, and performs frequency conversion into a transmission frequency and high frequency amplification. The output of the transmitter 512 is transmitted to the master station from the transmitting / receiving antenna 514 via the demultiplexer 513.

With this configuration, the facsimile slave station 5 can control the facsimile section 501 based on the control information transmitted from the master station.

In summary, the control information transmitted from the handset 4 and having the logical destination set in the facsimile slave station 5 is temporarily stored in the memory 311 of the master station 3 and assigned to the facsimile slave station. It is transmitted from the master station 3 in a unit period. Therefore, the remote control of the facsimile slave station 5 can be performed from the handset 4.

Next, an example of a calling sequence of the cordless facsimile apparatus based on the first embodiment will be described with reference to FIGS. Numbers in parentheses indicate the operation or state of each station in the figure. The time elapses in ascending order from FIG.

At the stage shown in FIG. 5, in the initial state, the master station 3, the handset 4, and the facsimile slave station 5 are respectively
The standby state (100, 101, 102) is set. The call key is pressed on the handset 4 (103)
Then, the handset 4 monitors the control channel used for the purpose of setting the wireless line and confirms the availability of the channel (1
05). When it is confirmed that the space is available, a call signal is transmitted to the master station 3 using the control channel (107). When the control channel is in use, it returns to the standby state. During this period, the facsimile slave station 5 continues the intermittent reception (104). When the master station detects the calling signal transmitted by the handset 4, (1
06), the time division synchronizing signal is transmitted (108). The transmission of the time division synchronization signal is continued for a period sufficient for the handset 4 and the facsimile slave station 5 to establish slave synchronization (109, 110).

Thereafter, each station shifts to the time division multiplex communication mode. That is, the handset 4 and the facsimile slave station 5 alternately establish a wireless line of the duplex system with the master station 3 for communication. After shifting to the time division multiplex communication mode, the master station 3 transmits a call response signal to the handset 4 in each allocation unit period (111). The handset 4 and the facsimile slave station 5 detect this call response signal (112, 113) and shift to the next sequence.

At the stage shown in FIG. 6, the master station 3 moves to the communication channel after transmitting the call response signal, and the handset 4 and the facsimile slave station 5 move to the communication channel after detecting the call response signal (114, 115, 116). ). The destination channel is added to the call response signal and designated by the master station 3. Next, the handset 4 confirms that the call channel of the movement destination is empty (117) and transmits a call channel movement completion signal (1
20). Similarly, the facsimile slave station 5 also confirms that the communication channel is empty (118) and transmits a communication channel movement completion signal (122). However, the handset 4 and the facsimile slave station 5 respectively return to the standby state when the availability of the communication channel cannot be confirmed.

The two movement completion signals are transmitted in different unit periods of the same time division frame, and the master station 3 detects the movement completion signals in each allocation period (119, 12).
1). When both movement completion signals are detected, a voice-on signal for instructing the connection of the voice path of the handset 4 is transmitted (123), and if either one is not detected, the standby state is restored. When the handset 4 detects this voice-on signal within a fixed time (124), it connects the voice output path (126). However, if it cannot be detected, it returns to the standby state. Further, the facsimile slave station 5 monitors the voice ON signal for the handset 4 for a certain period of time (125), continues the monitoring reception operation when it is detected (127), and returns to the standby state like the handset when not detected. After transmitting the voice-on signal, the master station 3 connects the line to the exchange.

In the stage shown in FIG. 7, when the dial key of the handset 4 is pressed (128) while the line to the exchange is connected, the handset 4 transmits the dial code to the master station 3 ( 130). The master station 3 detects the dial code (129) and sends a dial signal corresponding to the exchange. After that, the call destination and the call line are connected, and the master station 3 and the handset 4 shift to the call mode (131, 132). CED (C
alled Station Identificat
ion: Called terminal identification signal) When a signal is sent (1
33), the operator uses the acoustic output of the handset to
The D signal can be confirmed (134). The CED signal indicates that the called terminal is not a voice terminal, and is a 2.1 kHz tone signal of 2.6 seconds to 4 seconds which starts transmission after line connection. Then, the facsimile transmission key provided in the handset 4 is pressed (135). The handset 4 transmits the facsimile transmission request code to the master station 3 by adding the identification number of the facsimile slave station 5 which is a logical destination (137). The master station 3 temporarily stores this signal,
The data is transferred during the assigned unit period for the facsimile slave station 5 (138). Facsimile slave station 5 in the reception monitoring state
Detects the facsimile transmission request code (139) and shifts to the next state.

The steps shown in FIG.
Adds the control information indicating the logical destination as the handset to the transmission request response signal and transmits it to the master station 3 (141).
The master station monitors the transmission request response signal for a certain period. When this is detected, the transmission request response signal is temporarily stored (14
0), the transmission request response signal accumulated in the unit period assigned to the handset 4 is transferred (142). If not detected, the transmission is considered to be defective and the standby state is restored.

When the handset 4 detects the transmission request signal within a certain period (143), it shifts to the reception monitoring mode (145). If not detected, the operator is acoustically notified of the transmission failure (153). On the other hand, the facsimile slave station 5 starts transmitting the facsimile after transmitting the transmission request response signal (146). The master station 3 receives the facsimile signal and sends it to the wired communication line 2 (14
4). When the facsimile transmission is completed in the facsimile slave station 5, the transmission end signal is added to the master station 3 with an identification signal with the handset 4 as the logical destination (148). At the same time as detecting the transmission end signal, the master station 3 temporarily stores the transmission end signal and transfers the transmission end signal in the allocation unit period for the handset 4 (149). At this time, the handset 4 is in the reception monitoring mode, and by detecting the transfer of the transmission end signal (150), the operator is notified of the end of the facsimile transmission by using the acoustic output (15).
2). The handset 4 shifts to the next operation state after the completion of the transmission or the notification of the poor transmission. Further, the facsimile slave station 5 terminates the facsimile transmission mode after transmitting the transmission end signal (151).

The steps shown in FIG.
Shifts to the reception monitoring mode (155). The operator of the handset 4 presses the end call key (154) in response to the notification by the sound output, and sends an end call signal to the master station (15).
7). The master station 3 detects the call end signal (156), and transmits a call end response signal to each of the handset 4 and the facsimile slave station 5 (158). When the handset 4 and the facsimile slave station 5 in the reception monitoring mode detect the call end response signal in the allocation unit period of each station (15
(9, 160), the handset 4 disconnects the audio output path (162), and then the facsimile slave station 5 immediately returns to the standby state (164, 165).
The parent station 3 disconnects the line with the exchange (161) and then returns to the standby state (163).

An example of the calling sequence of this embodiment has been described above.

Next, a second embodiment of the present invention will be described. FIG. 10 is a block diagram showing the configuration of the system.
In FIG. 10, 4'is a handset, 5'is a facsimile slave station, 414, 517 is a display unit, 515 is a facsimile unit, 516 is a transmission information storage unit, and the same parts as in the first embodiment are common. Is attached.

The feature of this embodiment is that the control information from the facsimile slave station 5'transferred to the handset 4'includes the facsimile transmission / reception operation of the facsimile slave station 5'for the operator of the handset 4 '. The facsimile slave station 5 includes information to be notified and list information of the data stored in the transmission information storage unit 516, which is transmitted in response to the search from the handset 4 ', and conversely based on the key input from the operation unit 402. The control information for indirectly issuing an operation command to 'includes information for instructing printing and facsimile transmission of specific data in the transmission information storage unit 516.

That is, the handset 4'can instruct the operation for the image data stored in the facsimile slave station 5 '. The configuration and operation will be described below.

In this embodiment, the following changes are made to the configuration of each station of the first embodiment. Handset 4 '
Is newly provided with a display unit 414 connected to the control unit 404 in the handset 4, and the facsimile slave station 5 ′ is the facsimile unit 5 in the facsimile slave station 5.
01 is replaced by a facsimile unit 515, and a transmission information storage unit 516 connected to the facsimile unit 515, an output of the transmission information storage unit 516 and an output of the facsimile unit 515 are connected, and a display controlled by the control unit 505. The part 517 is provided. Therefore, the operation relating to the setting and control of the radio line of each station is performed in the same manner as in the first embodiment.

In the facsimile slave station 5 ', the facsimile section 515 prints and reproduces the image based on the facsimile signal transmitted from the master station, and converts the reproduced image into bit map image data in response to a command from the control section 505. The list information (date, reception time, sender, telephone number, list number) for reference is added and output to the transmission information storage unit 516.

Further, either the signal input from the scanning means for reading the original or the bit map image data output from the transmission information storage section 516 in response to a command from the control section 505 is converted into a facsimile signal. Then, the converted output is output to the encoding unit 506.

The transmission information storage unit 516 stores the data output from the facsimile unit 515 in the area arranged based on the added list number, and displays the corresponding data instructed by the control unit 505 on the facsimile unit 515. It is output to the unit 516. At this time, the list information created for data reference is simultaneously output to the control unit 505 and is transmitted to the master station 3 as control information as needed.

The display unit 516 displays and outputs the data converted into the bit map image, and can notify the operator of the received image without printing on the facsimile paper. Furthermore, since the transmission state is monitored when transmitting the data stored in the transmission information storage unit 516, it is displayed in real time in synchronization with the transmission operation.

In the handset 4 ', the display unit 414 displays the display data output from the control unit 404 on the display.

Thus, an example of facsimile transmission in the second embodiment will be shown.

11 and 12 show an operation sequence for transferring the data stored in the facsimile slave station 5'to the call destination. In the figure, the same operations as those in the calling sequence of the first embodiment are designated by the same reference numerals.

At the stage shown in FIG. 11, from the standby state,
The call key of the handset 5'is pressed, a time-division synchronized wireless line is set to the call master station 3 and the handset 4 ', and the facsimile slave station 5', and then the handset 4 '.
The process of connecting the voice path is the same as that shown in the first embodiment (FIGS. 5 and 6). In this state, the handset 4'transmits a list reference signal requesting the transmission of the list information stored in the transmission information storage section 516 to the master station 3 to the facsimile station 5 '(167). The master station 3 temporarily stores the list reference signal (166) and transfers it in the unit period allocated to the facsimile slave station 5 '(168). When the list reference signal is received by the facsimile slave station 5 '(1
69), the facsimile slave station 5 ′ sequentially returns the accumulated list information to the master station 3 by designating a logical destination as the handset slave station (171). The master station 3 stores this (17
0), and transfer to the allocation unit period of the handset 4 '(172). The handset 4 ′ sequentially receives the list information (173) and outputs the list information received via the control unit 404 to the display unit 414.

Next, in the stage shown in FIG. 12, the operator confirms the list number of the image to be transmitted by the output of the display unit 414 (174). Next, as in the first embodiment, the operator presses the dial to connect the line (128) (the connection process is the same as that shown in FIG. 7), and after confirming the CED signal (134), A transmission request for the facsimile slave station 5'is transmitted to the master station 3 while designating the list number (175). The master station 3 once stores this, and (1
76), and the data is transmitted during the allocation period of the facsimile slave station 5 '(178). When the facsimile slave station 5'receives the transmission request with the list number transferred from the master station 3 (17
8) Then, the facsimile transmission request response is returned to the master station 3. The subsequent sequence between the stations is the same as the process shown in FIGS. 8 and 9 in the description of the first embodiment, and the description is omitted here.

Upon receiving the transmission request, the facsimile slave station 5'operates as follows in facsimile transmission. The control unit 505 instructs the transmission information storage unit 516 to output the data corresponding to the list number, and the image data of the bitmap image is output to the display unit 517 and the facsimile unit 515. The facsimile unit 515 operates so as to convert the input data into a facsimile signal and transmit it to the master station 3. At this time, the display unit 517 displays the image to be transferred in synchronization with the facsimile transmission.

According to the second embodiment, the handset 4 '
It is possible to instruct the facsimile transfer of the image data stored from. Further, if the facsimile slave station 5 ′ prioritizes the storage processing in the transmission information storage unit 516 in the facsimile reception, the operator searches the list information with the handset 4 ′ as necessary to check the reception state, It is possible to instruct printing by selecting specific accumulated data.

As described above, the mutual communication between the handset 4'and the facsimile slave station 5'can improve the convenience of the display storage type facsimile apparatus.

[0073]

According to the present invention, as a wireless equipment, a cordless facsimile is constituted by a master station having only a transmitting / receiving pair and a plurality of slave stations, one of which is a facsimile slave station having a facsimile function. In the device, the master station is
Communication can be performed with each of a plurality of slave stations on a common frequency channel in a time-division and independently set duplex wireless line, and control information transmitted from each slave station is temporarily stored in the master station. Since the slave stations can communicate with each other with a time lag, it is possible to remotely operate the facsimile slave stations from any slave station without limiting the location of each slave station. improves.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a configuration of a first embodiment of the present invention,

FIG. 2 is a block diagram showing a configuration of a master station according to the first embodiment of the present invention,

FIG. 3 is a block diagram showing a configuration of a handset according to the first embodiment of the present invention,

FIG. 4 is a block diagram showing the configuration of a facsimile slave station according to the first embodiment of the present invention,

FIG. 5 is a flowchart showing an example of a calling sequence according to the first embodiment of the present invention,

FIG. 6 is a flowchart showing an example of a calling sequence according to the first embodiment of the present invention,

FIG. 7 is a flowchart showing an example of a calling sequence according to the first embodiment of the present invention,

FIG. 8 is a flowchart showing an example of a calling sequence according to the first embodiment of the present invention,

FIG. 9 is a flowchart showing an example of a calling sequence according to the first embodiment of the present invention,

FIG. 10 is a block diagram showing a system configuration of a second embodiment of the present invention,

FIG. 11 is a flowchart showing an example of an operation sequence according to the second embodiment of the present invention,

FIG. 12 is a flowchart showing an example of an operation sequence according to the second embodiment of the present invention,

FIG. 13 is a block diagram of a conventional multi-slave cordless telephone system.

[Explanation of symbols]

 2 ... Wired communication line, 3 ... Master station of cordless facsimile apparatus, 301 ... Connection section, 302 ... Encoding section, 303 ... Control section, 304 ... Decoding section, 305 ... Data separating section, 306 ... Burst generating section, 307 ... Write Address generation unit, 308 ... Transfer flag register, 309 ... Data identification unit, 310 ... Time division control unit, 311 ... Memory, 312 ... Switch, 313 ... Receiver, 314 ... Transmitter, 315 ... Read address generation unit, 316 ... Duplexer, 317 ... Common antenna for transmission and reception.

Claims (8)

[Claims] 1. A cordless telephone system comprising: a connection device connected to a general telephone network by a wired communication line; and a plurality of slave stations connected to the connection device by a duplex wireless line. One of the stations is a cordless facsimile machine, which is a facsimile slave station having a facsimile function including image recording and reproducing means, wherein a plurality of the slave stations are connected in a unit period allocated by the connection device in a time division manner. A time-division control unit for setting only a duplex wireless line is provided, and a transmission signal transmitted by the wired communication line is transmitted in a time-compressed burst signal format between the connection device and the plurality of slave stations. The burst signal is added with control information for the purpose of controlling the connection of the wireless line and the operation of each slave station. 2. The control information transmitted by a plurality of slave stations to a connection device according to claim 1, wherein the control device includes an identification signal indicating a logical destination of the control information, and the connection device adds the burst signal. Data identification means for detecting the identification signal included in the control information and identifying its logical destination, and data storage means for accumulating the control information transmitted according to the output of the data identification means. A cordless facsimile apparatus that transmits the control information accumulated in the data accumulating means in a unit period specified according to the output of the data identifying means. 3. The facsimile slave station according to claim 2, the operation is controlled by a direct operation for the slave station and an operation command indirectly instructed by the control information transmitted from the connection device. Cordless facsimile machine equipped with a facsimile function. 4. The cordless facsimile apparatus according to claim 3, wherein one of the plurality of slave stations is a handset, and the handset has an operation key for a facsimile function provided in the facsimile slave station. 5. The cordless facsimile according to claim 4, wherein the facsimile slave station comprises means for converting a reproduced image by a facsimile signal into digital data of a bit map image, and transmission information storage means for storing the converted digital data. apparatus. 6. The cordless facsimile apparatus according to claim 5, wherein the facsimile slave station is provided with display means for displaying digital data converted into a bit map image. 7. The transmission information storage means according to claim 5, wherein the date, time, and
A cordless facsimile apparatus including a facsimile slave station that simultaneously stores list information configured by a transmission source and transmits the list information as control information included in a burst signal to the connection device according to search control. 8. The handset according to claim 7, wherein the list information stored in the transmission information storage means of the facsimile slave station is searched for the list information and stored digital data referred to by the list information. A cordless facsimile machine equipped with operation keys for instructing printing and transfer.