US5128747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television signal processing system for reducing diagonal image artifacts
Assignee: General Electric Co
•
Filing: 1989-01-30
•
Granted: 1992-07-07
•
Expires: 2009-01-30
Abstract
Abstract Apparatus is disclosed for reducing unwanted jagged diagonal artifacts in a video signal. At an encoder, moving image information is intraframe averaged over a given frequency range, e.g., above 1.5 MHz, while still image information is subjected to a field repeat process over a given frequency range. At a decoder, still image information is subjected to a frame repeat process over the given field repeat frequency range, while moving image information is left unchanged.
Inventors
- 👤 Michael A. Isnardi
- 👤 Terrence R. Smith
- 👤 Jack S. Fuhrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:27
CPC Classifications
H; H04; H04N; H04N11/00; H04N19/00; H04N19/50; H04N19/503; H04N19/51; H04N19/577; H04N11/24; H04N11/26; H04N11/30; H04N19/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
105 words
In a system for receiving a television signal having been subjected to intraframe processing, apparatus comprising: control means for providing a control signal indicative of the image motion content of said television signal; adaptive means responsive to said control signal and to said television signal for providing at an output one form of said television signal when said control signal is representative of a given amount of image motion and providing a frame repeated television signal when said control signal is representative of significantly less than said given amount of image motion; and image signal processing means responsive to output signals from said adaptive means.
Claim 2
Dependent Claim
105 words
In a system for receiving a television signal having been subjected to intraframe processing, apparatus comprising: control means for providing a control signal indicative of the image motion content of said television signal; adaptive means responsive to said control signal and to said television signal for providing at an output one form of said television signal when said control signal is representative of a given amount of image motion and providing a frame repeated television signal when said control signal is representative of significantly less than said given amount of image motion; and image signal processing means responsive to output signals from said adaptive means.
Claim 3
Dependent Claim
26 words
A system according to claim 1, wherein: said adaptive means passes said television signal substantially undisturbed in the presence of said given amount of image motion.
Claim 4
Dependent Claim
29 words
A system according to claim 1, wherein: said adaptive means performs said frame repeating over a range of frequencies above a range of frequencies occupied by vertical detail information.
Claim 5
Dependent Claim
47 words
A system according to claim 1, wherein: said television signal is representative of a widescreen image having an aspect ratio greater than that of a standard television image and containing encoded main panel and side panel image information, said television signal having been subjected to intraframe processing.
Claim 6
Dependent Claim
42 words
A system according to claim 4, wherein: said television signal is in interlaced form; said system includes means for converting said television signal in interlaced form to progressive scanning form; and said adaptive means couples said television signal to said converting means.
References Cited (Backward Citations)
US3184542A
Cited
US4266240A
Cited
US4703363A
Cited
GB2151431A
Cited
US4661850A
Cited
US4816899A
Cited
US4884127A
Cited
US4897722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-07 | 1996-01-06 | 1996-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-07 | 2000-01-06 | 2000-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-07 | 2004-01-06 | 2004-07-07 | $7700.00 | Window Closed / Lapsed |