JPS5795761A - Picture signal processing device - Google Patents

Picture signal processing device

Info

Publication number
JPS5795761A
JPS5795761A JP55171882A JP17188280A JPS5795761A JP S5795761 A JPS5795761 A JP S5795761A JP 55171882 A JP55171882 A JP 55171882A JP 17188280 A JP17188280 A JP 17188280A JP S5795761 A JPS5795761 A JP S5795761A
Authority
JP
Japan
Prior art keywords
picture signal
profile emphasis
profile
circuit
processing device
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.)
Granted
Application number
JP55171882A
Other languages
Japanese (ja)
Other versions
JPH0229270B2 (en
Inventor
Yoshikazu Yokomizo
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 JP55171882A priority Critical patent/JPS5795761A/en
Priority to US06/326,269 priority patent/US4589034A/en
Priority to DE3148129A priority patent/DE3148129C2/en
Priority to DE3153280A priority patent/DE3153280C2/de
Priority to GB8136687A priority patent/GB2091967B/en
Publication of JPS5795761A publication Critical patent/JPS5795761A/en
Priority to GB08420007A priority patent/GB2142802B/en
Priority to US06/789,839 priority patent/US4748677A/en
Publication of JPH0229270B2 publication Critical patent/JPH0229270B2/ja
Granted 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
    • H04N1/40—Picture signal circuits
    • H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head

Abstract

PURPOSE:To enable processing with profile emphasis, by only providing one system of a profile emphasis circuit, through the separation of an output of the profile emphasis circuit at each modulator, in a picture signal processing device which processes a plurality of picture signals for profile emphasis. CONSTITUTION:The device is provided with a circuit of profile emphasis which selects signals (h), (i) digitizing an input picture signal from each CCD in parallel drive at a multiplexer 120 alternately, gives a delay and compares them with adjacent digital signals, and a demultiplexer 128 with separates the output of this profile emphasis circuit at each converter. Thus, since one profile emphasis is enough for the operation, the cost can be reduced.
JP55171882A 1980-12-05 1980-12-05 Picture signal processing device Granted JPS5795761A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP55171882A JPS5795761A (en) 1980-12-05 1980-12-05 Picture signal processing device
US06/326,269 US4589034A (en) 1980-12-05 1981-12-01 Image processing apparatus
DE3148129A DE3148129C2 (en) 1980-12-05 1981-12-04 Image processing device
DE3153280A DE3153280C2 (en) 1980-12-05 1981-12-04
GB8136687A GB2091967B (en) 1980-12-05 1981-12-04 Facsimile image processor
GB08420007A GB2142802B (en) 1980-12-05 1984-08-06 Facsimile image processor
US06/789,839 US4748677A (en) 1980-12-05 1985-10-21 Image processing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55171882A JPS5795761A (en) 1980-12-05 1980-12-05 Picture signal processing device

Publications (2)

Publication Number Publication Date
JPS5795761A true JPS5795761A (en) 1982-06-14
JPH0229270B2 JPH0229270B2 (en) 1990-06-28

Family

ID=15931538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55171882A Granted JPS5795761A (en) 1980-12-05 1980-12-05 Picture signal processing device

Country Status (1)

Country Link
JP (1) JPS5795761A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4896233A (en) * 1972-03-24 1973-12-08
JPS49115722A (en) * 1973-03-07 1974-11-05
JPS5322310A (en) * 1976-08-13 1978-03-01 Toshiba Corp Picture read system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4896233A (en) * 1972-03-24 1973-12-08
JPS49115722A (en) * 1973-03-07 1974-11-05
JPS5322310A (en) * 1976-08-13 1978-03-01 Toshiba Corp Picture read system

Also Published As

Publication number Publication date
JPH0229270B2 (en) 1990-06-28

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