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EP0116650A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Facsimile transmission control system

Assignee: Fujitsu Ltd
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Filing: 1983-08-30
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Granted: —
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Expires: 2003-08-30
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Abstract

Abstract @ A facsimile transmission control system has features such that is transmits a calling signal for calling up a receiver facsimile machine, transmits transmission picture data to the receiver facsimile machine, after a control signal indicating transmission function, when it receives a response signal indicating reception function and a reception preparation complete state from the receiver facsimile machine, with a predetermined period of time after the calling signal is transmitted; and transmits a control signal to the receiver facsimile machine when no response signal is received from the receiver facsimile machine within the predetermined period of time.

Inventors

  • 👤 Yoshio Iizuka
  • 👤 Shigeo Matsunaga

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 07:03
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/327; H04N1/32789; H04N1/32791; H04N1/32702

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 92 words
A facsimile transmission control system comprising a transmitting side facsimile device and a receiving side facsimile device, characterized in that said transmitting side facsimile device transmits a calling signal for calling said receiving side facsimile device, when said transmitting side receives a response signal indicating a receiving function and a completion of receiving preparation transmitted from said receiving side within a predetermined term after said transmitting side transmits said calling signal, said transmitting side transmits, in succession, a control signal indicating a transmitting function and an image data to said receiving side.
Claim 2
Dependent Claim 92 words
A facsimile transmission control system comprising a transmitting side facsimile device and a receiving side facsimile device, characterized in that said transmitting side facsimile device transmits a calling signal for calling said receiving side facsimile device, when said transmitting side receives a response signal indicating a receiving function and a completion of receiving preparation transmitted from said receiving side within a predetermined term after said transmitting side transmits said calling signal, said transmitting side transmits, in succession, a control signal indicating a transmitting function and an image data to said receiving side.
Claim 3
Dependent Claim 41 words
A facsimile transmission control system as claimed in claim 1, characterized in that said response signal is constituted by a composite signal consisting of a plurality of frequencies, said transmitting side transmits said control signal after it detects said composite signal.
Claim 4
Dependent Claim 57 words
A facsimile transmission control system as claimed in claim l, characterized in that said transmitting side stores said image data read by a reading section to a memory, when said transmitting side receives said response signal, said transmitting side transmits, in succession, said control signal indicating said transmitting function and said image data read from said memory.
Claim 5
Dependent Claim 61 words
A facsimile transmission control system as claimed in claim 1, characterized in that when said transmitting side does not receive said response signal indicating said receiving function and said completion of receiving preparation transmitted from said receiving side within a predetermined term after said transmitting side transmits said calling signal, said transmitting side transmits said control signal indicating said transmitting function.
Claim 6
Dependent Claim 168 words
A facsimile transmission control system as claimed in claim 1, characterized in that it is provided with, a transmitting reading section for reading out from a manuscript to be transmitted and for storing it temporarily and for band-compressing based on predetermined compression method, a receiving recording section for band-expanding the image data and for storing it temporarily and for recording it as the received manuscript, a buffer memory for storing the transmitting image data and the receiving image data with every one page's amount, a modem for transmitting said image data from said buffer memory to the circuit or from the circuit to said buffer memory under a predetermined transmission speed, a network control unit having the function of circuit connection, circuit disconnection control, and automatic dialing, an MF transceiver for inverting the command code to an MF type signal, and a control device for correcting the error and for generating and processing the command code and the response code and for controlling the transmitting and receiving data.
Claim 7
Dependent Claim 90 words
A facsimile transmission control system comprising a step for receiving said image data transmitted from said transmitting side facsimile device, and a further step for informing said transmitting side whether the received image data is normally received or not, characterized in that when said receiving side receives an end signal indicating the end of the transmitting image data transmitted from said transmitting side, said receiving side responds to said transmitting side by the signal indicating a disconnection of the circuit and disconnects said circuit from said transmitting side facsimile device.
Claim 8
Dependent Claim 90 words
A facsimile transmission control system comprising a step for receiving said image data transmitted from said transmitting side facsimile device, and a further step for informing said transmitting side whether the received image data is normally received or not, characterized in that when said receiving side receives an end signal indicating the end of the transmitting image data transmitted from said transmitting side, said receiving side responds to said transmitting side by the signal indicating a disconnection of the circuit and disconnects said circuit from said transmitting side facsimile device.

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