JPS5542436A - Information production device - Google Patents

Information production device

Info

Publication number
JPS5542436A
JPS5542436A JP11565278A JP11565278A JPS5542436A JP S5542436 A JPS5542436 A JP S5542436A JP 11565278 A JP11565278 A JP 11565278A JP 11565278 A JP11565278 A JP 11565278A JP S5542436 A JPS5542436 A JP S5542436A
Authority
JP
Japan
Prior art keywords
picture element
block
signals
element signals
signal
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
JP11565278A
Other languages
Japanese (ja)
Inventor
Shin Tsuda
Sadasuke Kurabayashi
Minoru Ogata
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP11565278A priority Critical patent/JPS5542436A/en
Priority to US06/075,113 priority patent/US4366505A/en
Publication of JPS5542436A publication Critical patent/JPS5542436A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To decrease the number of the control signal and thus to reduce the time for transmission by transmitting the control signal when the picture element signals in the block are all white and transmitting the picture element signals in the block after modulation when the picture element signal contains the black signal respectively, thus increasing the SIN.
CONSTITUTION: The picture element signals read out through original reading device 11 are stored in sequence into line memory 13, and then led out from memory 13 to be applied to 1-block memory 14 for isolation into blocks. In case the picture element signals in the block are all white signals, the control signal which can be distinguished from the picture element signal is transmitted in place of transmission of the picture element signals belonging to the block. While in case the picture element signals in the block contains the black signal, the picture element signals in the block are transmitted after modulation 20. As a result, the number of the control signals can be decreased, reducing the time for transmission. Thus the SIN can be increased.
COPYRIGHT: (C)1980,JPO&Japio
JP11565278A 1978-09-20 1978-09-20 Information production device Pending JPS5542436A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11565278A JPS5542436A (en) 1978-09-20 1978-09-20 Information production device
US06/075,113 US4366505A (en) 1978-09-20 1979-09-13 Information forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11565278A JPS5542436A (en) 1978-09-20 1978-09-20 Information production device

Publications (1)

Publication Number Publication Date
JPS5542436A true JPS5542436A (en) 1980-03-25

Family

ID=14667934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11565278A Pending JPS5542436A (en) 1978-09-20 1978-09-20 Information production device

Country Status (1)

Country Link
JP (1) JPS5542436A (en)

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