JPS6364106B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a distributed facsimile system in which a large number of facsimile machines are connected to a private branch exchange and used collectively in an office.

A conventional facsimile device is composed of various functional modules shown below. That is, the transmitting section includes a document image reading section consisting of illumination, lenses, and sensors, a memory for each scanning line, a paper feeding mechanism, a transmission signal compression processing section, a line connection control section, a transmission procedure section with the receiving side, and a modulation/demodulation device (hereinafter referred to as modem), etc. The receiving section includes a line connection control section, a transmission procedure section with the sending side, a modem, a received signal decoding section, an image signal memory section, a print head, a print drive mechanism section, and the like. The functional modules described above are combined to form a facsimile transmitting section and a receiving section. When a large number of facsimile devices are used in an office, there is a functional module that provides sufficient functionality for several facsimile devices. Therefore, the functions of this part are redundant and uneconomical. Furthermore, it was inconvenient that facsimile sending/receiving terminals were not in the hands of senders and receivers, unlike telephones.

The purpose of the present invention has been made in view of the above drawbacks, and it is possible to disassemble each function of a facsimile device into a facsimile reader/printer, an extension terminal, a facsimile trunk circuit, etc. By installing extension terminals and installing facsimile reader printers, facsimile trunk circuits, etc. for every few to several dozen extension terminals, we aim to make facsimile machines more economical and install facsimile machines for each individual. This device is designed to perform the same functions as the facsimile device, and when a large number of facsimile devices are used in an office or the like, it is possible to realize a very economical and convenient facsimile device. The present invention will be explained in detail below based on the drawings. FIG. 1 shows one embodiment of the invention. In the figure, 11 is a private branch exchange, and 12 is a facsimile trunk circuit containing a built-in modem, etc., to which a facsimile central office line is connected. 13 is an input/output unit for a general telephone office line; 14 is a facsimile signal storage device using magnetic tape; and 15 is an extension terminal which has a cassette magnetic tape type facsimile signal storage unit, and is used to store originals to be sent. A few pages to a few pages can be stored.
Also, when the facsimile is not in use, it can be switched to a telephone. 16 is a telephone, and 17 is a control device for a private branch exchange.

FIG. 2 shows a facsimile reader printer for offline use. In the figure, 20 is a facsimile reader printer, 21 is a reception cassette section,
22 is a transmission cassette section, 23 is a transmission telephone number key-in section, 24 is a transmission image reader section, 25 is a printing paper hopper, 26 is a printing paper outlet, and 27 is a printing button. The facsimile reader printer 20 is a device for printing out according to the facsimile image signal of the cassette magnetic tape received by the extension terminal 15, and for encoding and recording the transmitted original on the magnetic tape. It has built-in functional modules such as memory, paper feeding mechanism, and transmission signal compression processing.

The operation when transmitting a facsimile image signal from a distributed facsimile device will be explained with reference to FIGS. 1 and 2. Facsimile reader printer 2 for offline use of documents to be sent first
0 on the transmission image reader section 24 and input the destination number, compression mode, G2, G from the transmission telephone number key-in section 23.
Key in the 3rd class identification signal. By this key-in operation, the signal is written at the beginning of the facsimile image signal on the magnetic tape for transmission set in the transmission cassette section 22. Next, the contents of the transmission document are encoded and written. When the first page of the transmission original is completely written, a page end signal is input, and then the second page of the transmission original is placed on the transmission image reader section 24. After all writing of the transmission manuscript is completed, the transmission magnetic tape is rewound and transmitted from the extension terminal 15 at one's seat. This transmission procedure involves transmitting the tape to the extension terminal 15.
, and press the transmission request button 15b. Upon receiving the transmission request, the private branch exchange 11 identifies the destination party and the model based on the identification signal at the head of the facsimile image signal on the cassette tape 15a. Using the identification signal, the control device 17 of the private branch exchange 11 connects to the other party's line via the facsimile trunk circuit 12. In addition to the modem, the facsimile trunk circuit 12 has a line connection control section and a transmission procedure section for communicating with the called party, and after connecting with the destination facsimile device, exchanges prescribed transmission procedures for the facsimile. . After completing the transmission procedure, cassette tape 15
The facsimile image signal written in a is sent out at a predetermined speed. The cassette tape 15a
The facsimile image signal written in is encoded in advance with modified Huffman equal sign (MH code), modified lead code (MR code), etc. When this is completed, a page end signal is generated and control of the facsimile trunk circuit 12 is returned to. In this way, the contents of the cassette tape 15a are sent page by page to the other party's facsimile machine.

The telephone 16 cannot be used while the facsimile image signal is being sent, but if you press the telephone switch button 15c on the extension terminal 15 during the idle time after the transmission of one page of the original is completed and before the next page starts, the telephone mode will be activated. can be returned to. In this case, when transmitting the remaining facsimile signals again, the transmission request button 15b must be pressed again.

The facsimile transmission destination is not only the facsimile device outside the premises via the facsimile trunk 12, but also the extension terminals 15 on the premises are connected via the facsimile trunk (not shown) within the premises. You can send and receive facsimile image signals. In this case, when the other party is busy, the facsimile image signal including the facsimile image signal head which is an identification signal is stored in the storage device 14. If the recipient is available, a facsimile image signal is automatically sent out using the transfer function.

Next, the case of receiving a facsimile image signal from a partner station will be explained. Facsimile trunk circuit 1
When 2 is activated by an incoming signal from the central office line, it exchanges a predetermined transmission procedure with the other party's facsimile device. During the procedure, if an extension designation number signal is received, the extension designation number is transmitted to the control device 17 and a connection is made to a predetermined extension. If no extension number is specified, the connection will be made to a predetermined representative extension. Further, if the extension to be connected is in use, it is recorded in the storage device 14.
When a predetermined extension is available, the extension is connected to the storage device 14, and the contents recorded in the storage device 14 are transferred to the cassette tape 15a of the extension terminal 15 and recorded as facsimile image signals. If the remaining amount of the cassette tape 15a decreases and becomes less than one page of the original, the extension terminal 15 detects the remaining amount of the cassette tape 15a, and the receiving section receives the end signal of the page being received. It automatically stops and the remaining image signals are switched to be recorded and stored in the storage device 14. The cassette tape 15a becomes receivable by setting a new tape, and the remaining facsimile image signals recorded in the storage device 14 are transferred to the newly set cassette tape 1.
5a.

As one embodiment of the present invention, the case where the private branch exchange 11 is used has been described, but the private branch exchange 11
In addition, various modified devices are conceivable, such as a case where a key telephone device is used, or a case where the function of the facsimile trunk circuit 12 is separated from the modem. Further, it is possible to easily add a two-color print reading function to the facsimile reader printer 20 shown in FIG. 2, or add a copy function.

Next, the received cassette tape is placed in the reception cassette section 21 of the facsimile reader printer 20, and by operating the print button 27, the contents of the received cassette tape can be restored to the same state as the original document. That is, by operating the print button 27, the paper pooled in the printing paper hopper is fed to a predetermined position by a paper feed mechanism (not shown), and the paper is recorded on the paper on a cassette tape. The same characters and figures as the original document are printed using the facsimile image signal. When printing is completed, the paper is sent out from the printing paper outlet.

FIG. 3 shows one embodiment of an extension terminal according to the present invention. In the figure, 30 is the extension terminal body, 31
32 is a push button dial; 33 is a push button for compression mode, model, transmission request, etc.; 34 is a telephone/fax switch button; 35 is a handset. The main extension terminal is integrated with a telephone, and is similar to the extension terminal 30.
The cassette tape is normally in the receiving state. When a facsimile call is received, the switch button 34 is pressed.
The facsimile image signal sent by this operation is recorded on a cassette tape. Of course, the extension terminal 30
is normally used as a telephone.

As explained in detail above, the present invention allows sending and receiving facsimiles using a small and inexpensive extension terminal in the same way as telephones used by individuals or small groups, and allows documents to be sent to individuals. There is no need to ship. It also maintains the confidentiality of documents. Furthermore, if a high-quality facsimile reader printer is used in common, the facsimile device will be very effective in streamlining office work.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a distributed facsimile device according to the present invention, FIG. 2 is an external view of a facsimile reader printer for offline use, and FIG. 3 is an external view of an extension terminal. 11... Private branch exchange, 12... Facsimile trunk circuit, 13... Telephone office line, 14... Storage device, 15, 30... Extension terminal, 16... Telephone, 17... Control device, 20... Fax reader printer.

Claims (1)

[Claims] 1. A facsimile device interconnected by a private branch exchange or key telephone device, which has means for encoding a transmission document, storing and storing the code in a recording medium, and means for printing out according to the facsimile image signal stored in the recording medium. an offline facsimile reader printer; an extension terminal having a sending means for sending facsimile image signals stored in the recording medium to a connecting side; and a means for accumulating facsimile image signals received from the connecting side in the recording medium; 1. A distributed facsimile device comprising a facsimile trunk circuit having means for transmitting and receiving image signals and a modulation/demodulation means.