FR2466153B1 - - Google Patents

Info

Publication number
FR2466153B1
FR2466153B1 FR7923593A FR7923593A FR2466153B1 FR 2466153 B1 FR2466153 B1 FR 2466153B1 FR 7923593 A FR7923593 A FR 7923593A FR 7923593 A FR7923593 A FR 7923593A FR 2466153 B1 FR2466153 B1 FR 2466153B1
Authority
FR
France
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.)
Expired
Application number
FR7923593A
Other languages
French (fr)
Other versions
FR2466153A1 (fr
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7923593A priority Critical patent/FR2466153A1/fr
Publication of FR2466153A1 publication Critical patent/FR2466153A1/fr
Application granted granted Critical
Publication of FR2466153B1 publication Critical patent/FR2466153B1/fr
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
    • H04N1/403—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)
FR7923593A 1979-09-21 1979-09-21 Dispositif de decision noir ou blanc a seuil autoadaptatif pour systeme d'analyse de document et emetteur de telecopie comportant un tel dispositif Granted FR2466153A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7923593A FR2466153A1 (fr) 1979-09-21 1979-09-21 Dispositif de decision noir ou blanc a seuil autoadaptatif pour systeme d'analyse de document et emetteur de telecopie comportant un tel dispositif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7923593A FR2466153A1 (fr) 1979-09-21 1979-09-21 Dispositif de decision noir ou blanc a seuil autoadaptatif pour systeme d'analyse de document et emetteur de telecopie comportant un tel dispositif

Publications (2)

Publication Number Publication Date
FR2466153A1 FR2466153A1 (fr) 1981-03-27
FR2466153B1 true FR2466153B1 (enExample) 1984-12-28

Family

ID=9229900

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7923593A Granted FR2466153A1 (fr) 1979-09-21 1979-09-21 Dispositif de decision noir ou blanc a seuil autoadaptatif pour systeme d'analyse de document et emetteur de telecopie comportant un tel dispositif

Country Status (1)

Country Link
FR (1) FR2466153A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4685145A (en) * 1984-12-07 1987-08-04 Fingermatrix, Inc. Conversion of an image represented by a field of pixels in a gray scale to a field of pixels in binary scale

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1251286A (fr) * 1958-11-24 1961-01-20 Ibm Circuit de commande de niveau d'écrêtage
JPS5218132A (en) * 1975-08-01 1977-02-10 Hitachi Ltd Binary circuit
IT1055651B (it) * 1975-11-03 1982-01-11 Elsag Sistema elettronico per la lettura di simboli
US4119947A (en) * 1977-07-20 1978-10-10 Howard Noyes Leighton Optical signal processor

Also Published As

Publication number Publication date
FR2466153A1 (fr) 1981-03-27

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Legal Events

Date Code Title Description
ST Notification of lapse