FR2043436A5 - - Google Patents
Info
- Publication number
- FR2043436A5 FR2043436A5 FR7013754A FR7013754A FR2043436A5 FR 2043436 A5 FR2043436 A5 FR 2043436A5 FR 7013754 A FR7013754 A FR 7013754A FR 7013754 A FR7013754 A FR 7013754A FR 2043436 A5 FR2043436 A5 FR 2043436A5
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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; CALCULATING OR 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; CALCULATING OR 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81828569A | 1969-04-22 | 1969-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2043436A5 true FR2043436A5 (fr) | 1971-02-12 |
Family
ID=25225154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7013754A Expired FR2043436A5 (fr) | 1969-04-22 | 1970-04-16 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3599148A (fr) |
JP (1) | JPS5024814B1 (fr) |
BE (1) | BE749269A (fr) |
FR (1) | FR2043436A5 (fr) |
GB (1) | GB1290595A (fr) |
Families Citing this family (8)
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 |
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 |
Family Cites Families (3)
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 |
-
1969
- 1969-04-22 US US818285A patent/US3599148A/en not_active Expired - Lifetime
-
1970
- 1970-04-16 FR FR7013754A patent/FR2043436A5/fr not_active Expired
- 1970-04-17 GB GB1290595D patent/GB1290595A/en not_active Expired
- 1970-04-20 JP JP45033743A patent/JPS5024814B1/ja active Pending
- 1970-04-21 BE BE749269D patent/BE749269A/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS5024814B1 (fr) | 1975-08-19 |
DE2019519B2 (de) | 1975-07-24 |
US3599148A (en) | 1971-08-10 |
DE2019519A1 (de) | 1970-11-12 |
GB1290595A (fr) | 1972-09-27 |
BE749269A (fr) | 1970-10-01 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |