BE749269A - Circuit de quantification auto-ajustable pour dispositif d'identification de caracteres - Google Patents

Circuit de quantification auto-ajustable pour dispositif d'identification de caracteres

Info

Publication number
BE749269A
BE749269A BE749269DA BE749269A BE 749269 A BE749269 A BE 749269A BE 749269D A BE749269D A BE 749269DA BE 749269 A BE749269 A BE 749269A
Authority
BE
Belgium
Prior art keywords
adjustable
self
identification device
character identification
quantification circuit
Prior art date
Application number
Other languages
English (en)
French (fr)
Inventor
D M Stern
Original Assignee
Burroughs 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 Burroughs Corp filed Critical Burroughs Corp
Publication of BE749269A publication Critical patent/BE749269A/xx

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/25—Arrangements for performing computing operations, e.g. operational amplifiers for discontinuous functions, e.g. backlash, dead zone, limiting absolute value or peak value
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/16—Image preprocessing
    • G06V30/162—Quantising the image signal
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Character Input (AREA)
  • Facsimile Image Signal Circuits (AREA)
BE749269D 1969-04-22 1970-04-21 Circuit de quantification auto-ajustable pour dispositif d'identification de caracteres BE749269A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81828569A 1969-04-22 1969-04-22

Publications (1)

Publication Number Publication Date
BE749269A true BE749269A (fr) 1970-10-01

Family

ID=25225154

Family Applications (1)

Application Number Title Priority Date Filing Date
BE749269D BE749269A (fr) 1969-04-22 1970-04-21 Circuit de quantification auto-ajustable pour dispositif d'identification de caracteres

Country Status (5)

Country Link
US (1) US3599148A (cs)
JP (1) JPS5024814B1 (cs)
BE (1) BE749269A (cs)
FR (1) FR2043436A5 (cs)
GB (1) GB1290595A (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114682524A (zh) * 2020-12-31 2022-07-01 合肥美亚光电技术股份有限公司 一种信号校正方法、装置及分选设备

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987413A (en) * 1975-01-22 1976-10-19 Xerox Corporation Detection system
US4337455A (en) * 1978-04-21 1982-06-29 Caere Corporation Apparatus for processing video signals received from an optical scanner
JPS5585028A (en) * 1978-12-22 1980-06-26 Hitachi Ltd Mark detecting signal amplifier
SE448921B (sv) * 1980-10-08 1987-03-23 Ibm Svenska Ab Videosignaldetektor for detektering av inkommande analoga videosignaler fran en optisk dokumentlesare och for avgivande av digitala utgangssignaler
JPS58172061A (ja) * 1982-04-02 1983-10-08 Nippon Telegr & Teleph Corp <Ntt> 信号処理装置
US4468704A (en) * 1982-10-28 1984-08-28 Xerox Corporation Adaptive thresholder
US4916744A (en) * 1985-12-10 1990-04-10 Fuji Photo Film Co., Ltd. Image signal processing method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225213A (en) * 1962-05-18 1965-12-21 Beckman Instruments Inc Transition detector
DE1247051B (de) * 1965-06-18 1967-08-10 Siemens Ag Schaltungsanordnung zum Ausgleich von Kontrastaenderungen bei der Digitalisierung von Video-Signalen
US3479642A (en) * 1966-02-21 1969-11-18 Ibm Threshold system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114682524A (zh) * 2020-12-31 2022-07-01 合肥美亚光电技术股份有限公司 一种信号校正方法、装置及分选设备
CN114682524B (zh) * 2020-12-31 2023-07-28 合肥美亚光电技术股份有限公司 一种信号校正方法、装置及分选设备

Also Published As

Publication number Publication date
US3599148A (en) 1971-08-10
DE2019519B2 (de) 1975-07-24
GB1290595A (cs) 1972-09-27
JPS5024814B1 (cs) 1975-08-19
FR2043436A5 (cs) 1971-02-12
DE2019519A1 (de) 1970-11-12

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: BURROUGHS CORP.

Effective date: 19880430