JPS55147071A - Error correction system for retransmission of facsimile unit - Google Patents

Error correction system for retransmission of facsimile unit

Info

Publication number
JPS55147071A
JPS55147071A JP5444579A JP5444579A JPS55147071A JP S55147071 A JPS55147071 A JP S55147071A JP 5444579 A JP5444579 A JP 5444579A JP 5444579 A JP5444579 A JP 5444579A JP S55147071 A JPS55147071 A JP S55147071A
Authority
JP
Japan
Prior art keywords
signal
address
receiver
document
transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5444579A
Other languages
Japanese (ja)
Inventor
Toshio Ooya
Takeshi Ueda
Shuichi Nishikawa
Tsunetoshi Nishimoto
Yoshio Yamanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Shinbunsha KK
Mitsubishi Electric Corp
Asahi Shimbun Publishing Co
Original Assignee
Asahi Shinbunsha KK
Mitsubishi Electric Corp
Asahi Shimbun Publishing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Shinbunsha KK, Mitsubishi Electric Corp, Asahi Shimbun Publishing Co filed Critical Asahi Shinbunsha KK
Priority to JP5444579A priority Critical patent/JPS55147071A/en
Publication of JPS55147071A publication Critical patent/JPS55147071A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Facsimile Transmission Control (AREA)

Abstract

PURPOSE:To obtain correct document signal from required address, by avoiding to record when no transmission error is present to the document signal in reception and the address is younger than that expected by the receiver. CONSTITUTION:The transmitter 1 splits the document signal A into blocks and transmits them with each block number added. When the receiver 2a detects the transmission error at the Nth address, the receiver 2 transmits the retransmission request signal c. Since this signal reaches the transmitter 1 at the time of retransmission request signal B transmitting N+1 address due to the time delay of the transmission line, after the transmission of the document signal A at the N+1 address, the transmitter 1 temporarily stops and starts the transmission of the document signal A at the N address again after a given time. Since the receiver 2b expects the signal at the N+2 address, if no transmission error is present in the documenet signal A at the addresses N and N+1, no recording is made and recording is made from the document signal A at the address N+2.
JP5444579A 1979-05-02 1979-05-02 Error correction system for retransmission of facsimile unit Pending JPS55147071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5444579A JPS55147071A (en) 1979-05-02 1979-05-02 Error correction system for retransmission of facsimile unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5444579A JPS55147071A (en) 1979-05-02 1979-05-02 Error correction system for retransmission of facsimile unit

Publications (1)

Publication Number Publication Date
JPS55147071A true JPS55147071A (en) 1980-11-15

Family

ID=12970894

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5444579A Pending JPS55147071A (en) 1979-05-02 1979-05-02 Error correction system for retransmission of facsimile unit

Country Status (1)

Country Link
JP (1) JPS55147071A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6253070A (en) * 1985-09-02 1987-03-07 Matsushita Graphic Commun Syst Inc Facsimile equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5383513A (en) * 1976-12-29 1978-07-24 Fujitsu Ltd Error control system for picture signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5383513A (en) * 1976-12-29 1978-07-24 Fujitsu Ltd Error control system for picture signal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6253070A (en) * 1985-09-02 1987-03-07 Matsushita Graphic Commun Syst Inc Facsimile equipment
JPH0350473B2 (en) * 1985-09-02 1991-08-01 Matsushita Graphic Communic

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