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JPS5741075A - Border compensating circuit - Google Patents

Border compensating circuit

Info

Publication number
JPS5741075A
JPS5741075A JP55116629A JP11662980A JPS5741075A JP S5741075 A JPS5741075 A JP S5741075A JP 55116629 A JP55116629 A JP 55116629A JP 11662980 A JP11662980 A JP 11662980A JP S5741075 A JPS5741075 A JP S5741075A
Authority
JP
Japan
Prior art keywords
circuit
output
input
sampling
border
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
JP55116629A
Other languages
Japanese (ja)
Other versions
JPS6158069B2 (en
Inventor
Hiroshi Mitsuda
Yoshihiro Nagata
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP55116629A priority Critical patent/JPS5741075A/en
Publication of JPS5741075A publication Critical patent/JPS5741075A/en
Publication of JPS6158069B2 publication Critical patent/JPS6158069B2/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
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • H04N1/4092—Edge or detail enhancement

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE:To simplify a circuit configuration and to reduce a cost, by sampling an input picture signal, and after that, differentiating it, making its differentiated output binary, and compensating the border. CONSTITUTION:A picture signal (a) from an input terminal 30 is applied to a sampling circuit 4, and is sampled by a sampling pulse (b). An output (c) of the sampling circuit 4 is provided to a differetiating circuit 5 consisting of a capacitor C and a resistance R, and output (d) of the differentiating circuit 5 is provided to one input of a voltage comparator 6. To the other input of this voltage comparator, threshold voltage VT is applied. An output (e) of the voltage comparator 6 is latched by a picture period in a latching circuit 7, and is led out from an output terminal 40.
JP55116629A 1980-08-22 1980-08-22 Border compensating circuit Granted JPS5741075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55116629A JPS5741075A (en) 1980-08-22 1980-08-22 Border compensating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55116629A JPS5741075A (en) 1980-08-22 1980-08-22 Border compensating circuit

Publications (2)

Publication Number Publication Date
JPS5741075A true JPS5741075A (en) 1982-03-06
JPS6158069B2 JPS6158069B2 (en) 1986-12-10

Family

ID=14691920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55116629A Granted JPS5741075A (en) 1980-08-22 1980-08-22 Border compensating circuit

Country Status (1)

Country Link
JP (1) JPS5741075A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055768A (en) * 1983-09-06 1985-04-01 Sony Corp Printing device
JPH03289873A (en) * 1990-04-06 1991-12-19 Tohoku Pioneer Kk Picture signal correction circuit
EP1031661A2 (en) 1999-02-24 2000-08-30 Honda Giken Kogyo Kabushiki Kaisha Snow removing vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5487421A (en) * 1977-12-23 1979-07-11 Fuji Electric Co Ltd Binary circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5487421A (en) * 1977-12-23 1979-07-11 Fuji Electric Co Ltd Binary circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055768A (en) * 1983-09-06 1985-04-01 Sony Corp Printing device
JPH03289873A (en) * 1990-04-06 1991-12-19 Tohoku Pioneer Kk Picture signal correction circuit
EP1031661A2 (en) 1999-02-24 2000-08-30 Honda Giken Kogyo Kabushiki Kaisha Snow removing vehicle
US6474007B1 (en) 1999-02-24 2002-11-05 Honda Giken Kogyo Kabushiki Kaisha Snow removing vehicle

Also Published As

Publication number Publication date
JPS6158069B2 (en) 1986-12-10

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