CA1202412A - System for non linearity correction by intermediate frequency premodulation in television equipment - Google Patents
System for non linearity correction by intermediate frequency premodulation in television equipmentInfo
- Publication number
- CA1202412A CA1202412A CA000420177A CA420177A CA1202412A CA 1202412 A CA1202412 A CA 1202412A CA 000420177 A CA000420177 A CA 000420177A CA 420177 A CA420177 A CA 420177A CA 1202412 A CA1202412 A CA 1202412A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- frequency
- correction
- modulation
- amplitude
- 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
- 238000012937 correction Methods 0.000 title claims abstract description 79
- 239000000543 intermediate Substances 0.000 claims abstract description 25
- 239000002131 composite material Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 10
- 239000003990 capacitor Substances 0.000 description 7
- 230000007547 defect Effects 0.000 description 6
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 239000000969 carrier Substances 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 241001415166 Alona Species 0.000 description 1
- 241000534944 Thia Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- CPJSUEIXXCENMM-UHFFFAOYSA-N phenacetin Chemical group CCOC1=CC=C(NC(C)=O)C=C1 CPJSUEIXXCENMM-UHFFFAOYSA-N 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Amplitude Modulation (AREA)
- Television Receiver Circuits (AREA)
- Picture Signal Circuits (AREA)
- Color Television Systems (AREA)
- Processing Of Color Television Signals (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Networks Using Active Elements (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8201354A FR2520572B1 (fr) | 1982-01-28 | 1982-01-28 | Systeme de correction de non-linearites par premodulation en frequences intermediaires dans un equipement de television |
| FR8201354 | 1982-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1202412A true CA1202412A (en) | 1986-03-25 |
Family
ID=9270419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000420177A Expired CA1202412A (en) | 1982-01-28 | 1983-01-25 | System for non linearity correction by intermediate frequency premodulation in television equipment |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4538180A (enExample) |
| EP (1) | EP0086124B1 (enExample) |
| JP (1) | JPS58133052A (enExample) |
| AR (1) | AR230544A1 (enExample) |
| AT (1) | ATE16877T1 (enExample) |
| CA (1) | CA1202412A (enExample) |
| DE (1) | DE3361362D1 (enExample) |
| FR (1) | FR2520572B1 (enExample) |
| GR (1) | GR77896B (enExample) |
| MX (1) | MX153233A (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2164823A (en) * | 1984-09-17 | 1986-03-26 | Philips Electronic Associated | Television transmitter |
| US5093725A (en) * | 1990-06-22 | 1992-03-03 | At&T Bell Laboratories | Dynamic signal modification for achieving interference reduction in concurrently transmitted signals |
| US5432562A (en) * | 1993-01-26 | 1995-07-11 | U.S. Philips Corporation | Television signal reception |
| US5430498A (en) * | 1994-03-01 | 1995-07-04 | Comark Communications, Inc. | Selective intermodulation correction system |
| FI104450B (fi) * | 1997-10-09 | 2000-01-31 | Nokia Networks Oy | Menetelmä ja kytkentä viiveen kompensoimiseksi tehovahvistimen linearisointisilmukassa |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6909969A (enExample) * | 1968-07-02 | 1970-01-06 | ||
| FR2299759A1 (fr) * | 1974-10-22 | 1976-08-27 | Lgt Lab Gen Telecomm | Dispositif correcteur de phase differentielle et emetteur de television comportant un tel dispositif |
| US4249214A (en) * | 1979-03-23 | 1981-02-03 | Rca Corporation | Exciter having incidental phase correction compensation in consonance with output power level |
| FR2482799A1 (fr) * | 1980-05-14 | 1981-11-20 | Lgt Lab Gen Telecomm | Dispositif de precorrection de produits de non linearite et systeme de transmission de signaux de television comportant de tel dispositif |
-
1982
- 1982-01-28 FR FR8201354A patent/FR2520572B1/fr not_active Expired
-
1983
- 1983-01-13 US US06/457,624 patent/US4538180A/en not_active Expired - Fee Related
- 1983-01-19 AT AT83400121T patent/ATE16877T1/de not_active IP Right Cessation
- 1983-01-19 EP EP83400121A patent/EP0086124B1/fr not_active Expired
- 1983-01-19 DE DE8383400121T patent/DE3361362D1/de not_active Expired
- 1983-01-20 MX MX195974A patent/MX153233A/es unknown
- 1983-01-25 CA CA000420177A patent/CA1202412A/en not_active Expired
- 1983-01-26 JP JP58011200A patent/JPS58133052A/ja active Pending
- 1983-01-26 GR GR70341A patent/GR77896B/el unknown
- 1983-01-27 AR AR291956A patent/AR230544A1/es active
Also Published As
| Publication number | Publication date |
|---|---|
| AR230544A1 (es) | 1984-04-30 |
| FR2520572B1 (fr) | 1986-01-17 |
| DE3361362D1 (en) | 1986-01-16 |
| JPS58133052A (ja) | 1983-08-08 |
| US4538180A (en) | 1985-08-27 |
| EP0086124A1 (fr) | 1983-08-17 |
| ATE16877T1 (de) | 1985-12-15 |
| EP0086124B1 (fr) | 1985-12-04 |
| GR77896B (enExample) | 1984-09-25 |
| MX153233A (es) | 1986-08-28 |
| FR2520572A1 (fr) | 1983-07-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20030325 |