CA2241408C - Using special ntsc receiver to detect when co-channel interfering ntsc signal accompanies a digital tv signal - Google Patents
Using special ntsc receiver to detect when co-channel interfering ntsc signal accompanies a digital tv signal Download PDFInfo
- Publication number
- CA2241408C CA2241408C CA002241408A CA2241408A CA2241408C CA 2241408 C CA2241408 C CA 2241408C CA 002241408 A CA002241408 A CA 002241408A CA 2241408 A CA2241408 A CA 2241408A CA 2241408 C CA2241408 C CA 2241408C
- Authority
- CA
- Canada
- Prior art keywords
- signal
- phase
- circuitry
- digital television
- response
- 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 - Fee Related
Links
Classifications
-
- 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
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/455—Demodulation-circuits
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
- Television Receiver Circuits (AREA)
- Color Television Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Picture Signal Circuits (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/882,540 US5852476A (en) | 1997-03-21 | 1997-06-25 | Using special NTSC receiver to detect when co-channel interfering NTSC signal accompanies a digital tv signal |
US08/882,540 | 1997-06-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2241408A1 CA2241408A1 (en) | 1998-12-25 |
CA2241408C true CA2241408C (en) | 2002-04-09 |
Family
ID=25380813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002241408A Expired - Fee Related CA2241408C (en) | 1997-06-25 | 1998-06-23 | Using special ntsc receiver to detect when co-channel interfering ntsc signal accompanies a digital tv signal |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP3576816B2 (ko) |
KR (1) | KR100274743B1 (ko) |
CA (1) | CA2241408C (ko) |
-
1998
- 1998-06-23 CA CA002241408A patent/CA2241408C/en not_active Expired - Fee Related
- 1998-06-25 KR KR1019980024181A patent/KR100274743B1/ko not_active IP Right Cessation
- 1998-06-25 JP JP17944798A patent/JP3576816B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2241408A1 (en) | 1998-12-25 |
JPH1175134A (ja) | 1999-03-16 |
JP3576816B2 (ja) | 2004-10-13 |
KR100274743B1 (ko) | 2000-12-15 |
KR19990007349A (ko) | 1999-01-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed | ||
MKLA | Lapsed |
Effective date: 20100623 |