JPS5635571A - Quantizing circuit - Google Patents

Quantizing circuit

Info

Publication number
JPS5635571A
JPS5635571A JP11109379A JP11109379A JPS5635571A JP S5635571 A JPS5635571 A JP S5635571A JP 11109379 A JP11109379 A JP 11109379A JP 11109379 A JP11109379 A JP 11109379A JP S5635571 A JPS5635571 A JP S5635571A
Authority
JP
Japan
Prior art keywords
analog signal
signal
comparator
detecting circuit
inclination
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
JP11109379A
Other languages
Japanese (ja)
Inventor
Hideo Masaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11109379A priority Critical patent/JPS5635571A/en
Publication of JPS5635571A publication Critical patent/JPS5635571A/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
    • H04N1/40—Picture signal circuits
    • H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Manipulation Of Pulses (AREA)
  • Image Input (AREA)

Abstract

PURPOSE:To ensure an accurate binary quantization for the information contained in the analog signal having the poor response property, by providing the inclination detecting circuit to detect the inclination of the analog signal. CONSTITUTION:The supplied analog signal V1 is delayed by a fixed time after sample-held at the sample holding circuit 11 and then applied to the comparator 16. The comparator 16 compares this analog signal with the attenuated analog signal to deliver the level 1 in case the former signal is smaller than the latter one. And the peak value, i.e., the output signal of the detecting circuit 13 is compared with the analog signal through the comparator 17 to obtain the binary signal.
JP11109379A 1979-08-31 1979-08-31 Quantizing circuit Pending JPS5635571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11109379A JPS5635571A (en) 1979-08-31 1979-08-31 Quantizing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11109379A JPS5635571A (en) 1979-08-31 1979-08-31 Quantizing circuit

Publications (1)

Publication Number Publication Date
JPS5635571A true JPS5635571A (en) 1981-04-08

Family

ID=14552196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11109379A Pending JPS5635571A (en) 1979-08-31 1979-08-31 Quantizing circuit

Country Status (1)

Country Link
JP (1) JPS5635571A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62232271A (en) * 1986-04-02 1987-10-12 Matsushita Graphic Commun Syst Inc Half tone picture processor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62232271A (en) * 1986-04-02 1987-10-12 Matsushita Graphic Commun Syst Inc Half tone picture processor

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