CA1096049A - Geometry and focus correction circuit - Google Patents
Geometry and focus correction circuitInfo
- Publication number
- CA1096049A CA1096049A CA270,352A CA270352A CA1096049A CA 1096049 A CA1096049 A CA 1096049A CA 270352 A CA270352 A CA 270352A CA 1096049 A CA1096049 A CA 1096049A
- Authority
- CA
- Canada
- Prior art keywords
- deflection
- circuit
- correction
- cathode
- signals
- 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.)
- Expired
Links
- 241000226585 Antennaria plantaginifolia Species 0.000 claims abstract description 6
- 238000010894 electron beam technology Methods 0.000 claims description 11
- 230000004323 axial length Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000007620 mathematical function Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 229920000535 Tan II Polymers 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
- H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
- H04N3/233—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements
- H04N3/2335—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements with calculating means
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Television Scanning (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US682,242 | 1976-05-03 | ||
| US05/682,242 US4039899A (en) | 1976-05-03 | 1976-05-03 | Geometry and focus correction circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1096049A true CA1096049A (en) | 1981-02-17 |
Family
ID=24738834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA270,352A Expired CA1096049A (en) | 1976-05-03 | 1977-01-24 | Geometry and focus correction circuit |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4039899A (enExample) |
| JP (1) | JPS586425B2 (enExample) |
| CA (1) | CA1096049A (enExample) |
| DE (1) | DE2718904C3 (enExample) |
| FR (1) | FR2350750A1 (enExample) |
| GB (1) | GB1545373A (enExample) |
| NL (1) | NL171402C (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309640A (en) * | 1980-01-25 | 1982-01-05 | Tektronix, Inc. | Circuit and method for correcting side pincushion distortion and regulating picture width |
| EP0110282A1 (en) * | 1982-11-23 | 1984-06-13 | Tektronix, Inc. | Image distortion correction method and apparatus |
| US4496882A (en) * | 1982-12-03 | 1985-01-29 | Motorola, Inc. | Inductorless pincushion correction circuit |
| JPS6057785A (ja) * | 1983-09-09 | 1985-04-03 | Hitachi Ltd | テレビカメラ装置 |
| BG45024A1 (enExample) * | 1986-03-06 | 1989-03-15 | Vasil B Penchev | |
| JPH1146309A (ja) * | 1997-07-28 | 1999-02-16 | Mitsubishi Electric Corp | Ｃｒｔフォーカスの補正方法、ｃｒｔフォーカス補正回路及びディスプレイ装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3517252A (en) * | 1969-02-20 | 1970-06-23 | Sanders Associates Inc | Linearity correction apparatus for magnetically deflected cathode ray tubes |
| US3772566A (en) * | 1971-05-07 | 1973-11-13 | Loral Corp | Linearization of magnetically deflected cathode ray tube with non-axial guns |
| US3825796A (en) * | 1971-06-21 | 1974-07-23 | United Aircraft Corp | Crt geometry correction network |
| US3714501A (en) * | 1971-11-26 | 1973-01-30 | Litton Systems Inc | Linearity correction for magnetically deflectable cathode ray tubes |
-
1976
- 1976-05-03 US US05/682,242 patent/US4039899A/en not_active Expired - Lifetime
-
1977
- 1977-01-18 GB GB1845/77A patent/GB1545373A/en not_active Expired
- 1977-01-24 CA CA270,352A patent/CA1096049A/en not_active Expired
- 1977-01-25 NL NLAANVRAGE7700723,A patent/NL171402C/xx not_active IP Right Cessation
- 1977-04-20 JP JP52045631A patent/JPS586425B2/ja not_active Expired
- 1977-04-22 FR FR7712871A patent/FR2350750A1/fr active Granted
- 1977-04-28 DE DE2718904A patent/DE2718904C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2718904C3 (de) | 1982-02-04 |
| NL171402C (nl) | 1983-03-16 |
| NL7700723A (nl) | 1977-11-07 |
| DE2718904B2 (de) | 1981-05-07 |
| US4039899A (en) | 1977-08-02 |
| JPS586425B2 (ja) | 1983-02-04 |
| FR2350750B1 (enExample) | 1983-03-18 |
| DE2718904A1 (de) | 1977-11-10 |
| GB1545373A (en) | 1979-05-10 |
| JPS52133716A (en) | 1977-11-09 |
| NL171402B (nl) | 1982-10-18 |
| FR2350750A1 (fr) | 1977-12-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |