JPS5531397A - Method of and device for sharpening pulse - Google Patents

Method of and device for sharpening pulse

Info

Publication number
JPS5531397A
JPS5531397A JP10731279A JP10731279A JPS5531397A JP S5531397 A JPS5531397 A JP S5531397A JP 10731279 A JP10731279 A JP 10731279A JP 10731279 A JP10731279 A JP 10731279A JP S5531397 A JPS5531397 A JP S5531397A
Authority
JP
Japan
Prior art keywords
sharpening
pulse
sharpening pulse
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
JP10731279A
Other languages
English (en)
Japanese (ja)
Inventor
Buishiyaa Heruman
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.)
Dr Ing Rudolf Hell GmbH
Original Assignee
Dr Ing Rudolf Hell GmbH
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 Dr Ing Rudolf Hell GmbH filed Critical Dr Ing Rudolf Hell GmbH
Publication of JPS5531397A publication Critical patent/JPS5531397A/ja
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)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Picture Signal Circuits (AREA)
  • Television Signal Processing For Recording (AREA)
JP10731279A 1978-08-25 1979-08-24 Method of and device for sharpening pulse Pending JPS5531397A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2837139A DE2837139C3 (de) 1978-08-25 1978-08-25 Verfahren und Schaltungsanordnung zur Impulsaufsteilung

Publications (1)

Publication Number Publication Date
JPS5531397A true JPS5531397A (en) 1980-03-05

Family

ID=6047888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10731279A Pending JPS5531397A (en) 1978-08-25 1979-08-24 Method of and device for sharpening pulse

Country Status (8)

Country Link
US (1) US4276568A (enExample)
JP (1) JPS5531397A (enExample)
AU (1) AU5031479A (enExample)
DE (1) DE2837139C3 (enExample)
FR (1) FR2434532A1 (enExample)
GB (1) GB2029157B (enExample)
IT (1) IT1165284B (enExample)
NL (1) NL178471C (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS575466A (en) * 1980-06-13 1982-01-12 Nec Corp Binary coded circuit

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56123176A (en) * 1980-03-05 1981-09-28 Ricoh Co Ltd Processing method for picture signal
US4516174A (en) * 1980-03-10 1985-05-07 Ricoh Company, Ltd. Video signal regulating apparatus
US4691239A (en) * 1982-12-23 1987-09-01 Nelson Martin N Dynamic video system and method
JPS6195669A (ja) * 1984-10-16 1986-05-14 Dainippon Screen Mfg Co Ltd 画像処理方法
KR0185136B1 (ko) * 1996-02-21 1999-04-15 김광호 Vcr의 화상 선명도 확대장치

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159815A (en) * 1961-11-29 1964-12-01 Ibm Digitalization system for multi-track optical character sensing
US3267293A (en) * 1963-04-25 1966-08-16 Sperry Rand Corp Character recognition circuit
DE1247051B (de) * 1965-06-18 1967-08-10 Siemens Ag Schaltungsanordnung zum Ausgleich von Kontrastaenderungen bei der Digitalisierung von Video-Signalen
FR1541018A (fr) * 1966-08-01 1968-10-04 Xerox Corp Système de transmission de fac-similé
US3500073A (en) * 1966-09-15 1970-03-10 Phonocopy Inc Analog to binary signal processor
US3566281A (en) * 1968-05-21 1971-02-23 Ibm Electric pulse wave clipping circuitry
US3869698A (en) * 1973-11-29 1975-03-04 Mohawk Data Sciences Corp Optical character recognition video amplifier and digitizer
US3912943A (en) * 1974-08-09 1975-10-14 Ibm Video thresholder
US3952144A (en) * 1974-10-02 1976-04-20 Faxon Communications Corporation Methods and apparatus for automatic background and contrast control
US3987413A (en) * 1975-01-22 1976-10-19 Xerox Corporation Detection system
US4084196A (en) * 1977-01-31 1978-04-11 Dacom, Inc. Electronic half-tone generating means for facsimile reproduction system
US4159432A (en) * 1977-11-30 1979-06-26 International Business Machines Corporation Analog signal manipulation using charge transfer techniques
DE2800759C3 (de) * 1978-01-09 1984-08-23 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zur Umwandlung eines Videosignals in ein Zwei-Pegel-Signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS575466A (en) * 1980-06-13 1982-01-12 Nec Corp Binary coded circuit

Also Published As

Publication number Publication date
IT7924939A0 (it) 1979-08-06
FR2434532B1 (enExample) 1984-08-10
GB2029157B (en) 1982-12-22
US4276568A (en) 1981-06-30
DE2837139A1 (de) 1980-02-28
DE2837139B2 (de) 1981-06-04
GB2029157A (en) 1980-03-12
DE2837139C3 (de) 1982-02-25
IT1165284B (it) 1987-04-22
FR2434532A1 (fr) 1980-03-21
AU5031479A (en) 1980-02-28
NL7905929A (nl) 1980-02-27
NL178471C (nl) 1986-03-17

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