NL245481A - - Google Patents
Info
- Publication number
- NL245481A NL245481A NL245481DA NL245481A NL 245481 A NL245481 A NL 245481A NL 245481D A NL245481D A NL 245481DA NL 245481 A NL245481 A NL 245481A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/02—Volume compression or expansion in amplifiers having discharge tubes
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/16—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level
-
- 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)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Character Input (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Image Analysis (AREA)
- Picture Signal Circuits (AREA)
- Amplifiers (AREA)
- Image Input (AREA)
- Processing Of Color Television Signals (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US775968A US2975371A (en) | 1958-11-24 | 1958-11-24 | Clipping level control circuit |
| US341274A US3339178A (en) | 1958-11-24 | 1964-01-30 | Video clipping circuit adjustable by digital feedback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL245481A true NL245481A (en:Method) | 1900-01-01 |
Family
ID=26992442
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL245481D NL245481A (en:Method) | 1958-11-24 | ||
| NL128313D NL128313C (en:Method) | 1958-11-24 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL128313D NL128313C (en:Method) | 1958-11-24 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2975371A (en:Method) |
| DE (2) | DE1105914B (en:Method) |
| GB (2) | GB899617A (en:Method) |
| NL (2) | NL128313C (en:Method) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL281550A (en:Method) * | 1961-07-31 | 1900-01-01 | ||
| US3290607A (en) * | 1963-04-22 | 1966-12-06 | Fujitsu Ltd | Echo-type equalizer which differentiates echo signals |
| US3339177A (en) * | 1964-01-30 | 1967-08-29 | Ibm | Data consolidation system employing cell grouping with a plurality of scans within each cell |
| US3315120A (en) * | 1964-07-02 | 1967-04-18 | Burroughs Corp | Differential delay-line amplifier |
| US3415950A (en) * | 1965-03-29 | 1968-12-10 | Ibm | Video quantizing system |
| US3519851A (en) * | 1967-05-26 | 1970-07-07 | Corning Glass Works | Driver for bipolar capacitive loads |
| GB1268359A (en) * | 1968-07-18 | 1972-03-29 | Plessey Co Ltd | Improvements in or relating to assessor circuits |
| GB1332891A (en) * | 1969-10-31 | 1973-10-10 | Image Analysing Computers Ltd | Image analysis |
| AT349248B (de) * | 1976-11-29 | 1979-03-26 | Gao Ges Automation Org | Verfahren zur dynamischen messung des verschmutzungsgrades von banknoten und pruefvorrichtung zur durchfuehrung dieses verfahrens |
| JPS56123176A (en) * | 1980-03-05 | 1981-09-28 | Ricoh Co Ltd | Processing method for picture signal |
| US4399469A (en) * | 1980-04-23 | 1983-08-16 | American Hoechst Corporation | Imaging system and method with improved boundary detection |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE475115A (en:Method) * | 1940-11-27 | |||
| US2707751A (en) * | 1946-03-12 | 1955-05-03 | Harold V Hance | Delay line pulse stretcher |
| US2662977A (en) * | 1950-03-23 | 1953-12-15 | Itt | Radio impulse system for oscillograph calibration |
| US3214700A (en) * | 1961-03-17 | 1965-10-26 | Trw Inc | Variable threshold signal detection system |
| FR1342180A (fr) * | 1961-08-28 | 1963-11-08 | Solartron Electronic Group | Appareil perfectionné pour la reconnaissance de caractères |
-
0
- NL NL245481D patent/NL245481A/xx unknown
- NL NL128313D patent/NL128313C/xx active
-
1958
- 1958-11-24 US US775968A patent/US2975371A/en not_active Expired - Lifetime
-
1959
- 1959-11-21 DE DEI17269A patent/DE1105914B/de active Pending
- 1959-11-24 GB GB39927/59A patent/GB899617A/en not_active Expired
-
1964
- 1964-01-30 US US341274A patent/US3339178A/en not_active Expired - Lifetime
-
1965
- 1965-01-04 GB GB267/65A patent/GB1032902A/en not_active Expired
- 1965-01-27 DE DEJ27399A patent/DE1231291B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL128313C (en:Method) | 1900-01-01 |
| US2975371A (en) | 1961-03-14 |
| US3339178A (en) | 1967-08-29 |
| GB899617A (en) | 1962-06-27 |
| DE1105914B (de) | 1961-05-04 |
| DE1231291B (de) | 1966-12-29 |
| GB1032902A (en) | 1966-06-15 |