JPS57116480A - Facsimile equipment - Google Patents

Facsimile equipment

Info

Publication number
JPS57116480A
JPS57116480A JP56002156A JP215681A JPS57116480A JP S57116480 A JPS57116480 A JP S57116480A JP 56002156 A JP56002156 A JP 56002156A JP 215681 A JP215681 A JP 215681A JP S57116480 A JPS57116480 A JP S57116480A
Authority
JP
Japan
Prior art keywords
block
counter
signal
comparator
transmission time
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
JP56002156A
Other languages
Japanese (ja)
Inventor
Eiichi Adachi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56002156A priority Critical patent/JPS57116480A/en
Publication of JPS57116480A publication Critical patent/JPS57116480A/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
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To vary minimum transmission time optionally while securing the minimum transmission time with simple constitution by counting the number of every block of transmitted data, by comparing it with given data, and by adding an insignificant bit. CONSTITUTION:Image information from a scanner 1 is coded, block by block, by a coder 4 and a synchronizing code is added to generate an output; when the synchronizing code of each block is generated, a bit-number counter 7 is reset, and every time the coding processing of the image information ends, access to a comparator 8 is attained. When a signal from the comparator 8 is not supplied to a switch circuit 6, the output of the coder 4 is applied as transmitted data to the counter 7 and when the signal is supplied, a signal from an insignificant- bit generator 5 is applied to the counter 7. Then, data from a latch circuit 9 is compared by the comparator 8 with the count value of the counter 7 for every block to vary minimum transmission time optionally, thereby sending an image signal from a modem 3 to a circuit.
JP56002156A 1981-01-12 1981-01-12 Facsimile equipment Pending JPS57116480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56002156A JPS57116480A (en) 1981-01-12 1981-01-12 Facsimile equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56002156A JPS57116480A (en) 1981-01-12 1981-01-12 Facsimile equipment

Publications (1)

Publication Number Publication Date
JPS57116480A true JPS57116480A (en) 1982-07-20

Family

ID=11521482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56002156A Pending JPS57116480A (en) 1981-01-12 1981-01-12 Facsimile equipment

Country Status (1)

Country Link
JP (1) JPS57116480A (en)

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