Patent US5574509A successfully refreshed from Google Patents.
US5574509A
Expired / Lapsed
US
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Antenna orientation system for digital TV receiver
Assignee: LG Electronics Inc
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Filing: 1994-09-08
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Granted: 1996-11-12
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Expires: 2014-09-08
Abstract
Abstract An antenna adjustment system for a digital television receiver includes a graphics generator for receiving an error signal input and developing an on-screen signal quality display. An antenna is positionable by the viewer while referring to the on-screen signal quality display which enables optimal orientation of the antenna for best signal quality. The error signal is developed by comparing a rugged frame sync in the received television signal with a reference frame sync in the television receiver.
Inventors
- 👤 Richard W. Citta
- 👤 Gary J. Sgrignoli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:14
CPC Classifications
H; H04; H04N; H04N17/00; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/125; H01Q1/1257; H04N5/00; H04N5/44; H04N5/50
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
96 words
In combination: a television receiver for processing digital signals; a positionable antenna coupled to said television receiver for receiving a digital television signal including a robust frame sync symbol code, said television receiver including a reference frame sync symbol code; means for comparing the frame sync symbol code in said digital signal with said reference frame sync symbol code for developing an error signal; and means including a graphics generator for producing a visual indication on a display screen of said television receiver based on said error signal for enabling optimal orientation of said positionable antenna.
Claim 2
Dependent Claim
96 words
In combination: a television receiver for processing digital signals; a positionable antenna coupled to said television receiver for receiving a digital television signal including a robust frame sync symbol code, said television receiver including a reference frame sync symbol code; means for comparing the frame sync symbol code in said digital signal with said reference frame sync symbol code for developing an error signal; and means including a graphics generator for producing a visual indication on a display screen of said television receiver based on said error signal for enabling optimal orientation of said positionable antenna.
Claim 3
Dependent Claim
42 words
The combination of claim 1 wherein said television receiver includes an equalizer for correcting certain errors in the received television signal based upon a known reference sequence; and wherein said frame sync symbol code is supplied from the output of said equalizer.
Claim 4
Dependent Claim
42 words
The combination of claim 1 wherein said television receiver includes an equalizer for correcting certain errors in the received television signal based upon a known reference sequence; and wherein said frame sync symbol code is supplied from the input of said equalizer.
Claim 5
Dependent Claim
48 words
The combination of claim 1 wherein said television receiver includes an equalizer for correcting certain errors in the received television signal based upon a known reference sequence and further including; means for supplying said frame sync symbol code from both the input and the output of said equalizer.
Claim 6
Independent Claim
78 words
A method of positioning a positionable antenna for optimal reception of a digital television signal comprising: receiving a digital television signal with said antenna; developing an error signal based upon comparing a reference frame sync symbol code in said television receiver with a recovered frame sync symbol code from said received television signal; and generating a graphics display on a viewing screen of said television receiver based upon said error signal for enabling optimum orientation of said antenna.
Claim 7
Independent Claim
78 words
A method of positioning a positionable antenna for optimal reception of a digital television signal comprising: receiving a digital television signal with said antenna; developing an error signal based upon comparing a reference frame sync symbol code in said television receiver with a recovered frame sync symbol code from said received television signal; and generating a graphics display on a viewing screen of said television receiver based upon said error signal for enabling optimum orientation of said antenna.
Claim 8
Dependent Claim
30 words
The method of claim 5 further including: providing an equalizer for the received digital television signal; and supplying said recovered frame sync symbol code from the output of said equalizer.
Claim 9
Dependent Claim
30 words
The method of claim 5 further including: providing an equalizer for the received digital television signal; and supplying said recovered frame sync symbol code from the input of said equalizer.
Claim 10
Dependent Claim
34 words
The method of claim 5 further including: providing an equalizer for the received digital television signal; and supplying said reference frame sync symbol code from both the input and the output of said equalizer.
Claim 11
Independent Claim
95 words
A method of orientating a positionable antenna for optimal reception of a digital television signal by reference to a display on a television receiver viewing screen comprising: receiving a digital television signal with said antenna; comparing a reference frame sync symbol code in the television receiver with a recovered frame sync symbol code from said received television signal; developing an error signal based upon said comparison; and selectively generating a graphics display on said viewing screen based on said error signal for enabling orientation of said antenna for optimal reception of said digital television signal.
Claim 12
Independent Claim
95 words
A method of orientating a positionable antenna for optimal reception of a digital television signal by reference to a display on a television receiver viewing screen comprising: receiving a digital television signal with said antenna; comparing a reference frame sync symbol code in the television receiver with a recovered frame sync symbol code from said received television signal; developing an error signal based upon said comparison; and selectively generating a graphics display on said viewing screen based on said error signal for enabling orientation of said antenna for optimal reception of said digital television signal.
References Cited (Backward Citations)
US4935814A
Cited
US5289178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-11-12 | 2000-05-13 | 2000-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-12 | 2004-05-13 | 2004-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-12 | 2008-05-13 | 2008-11-12 | $7700.00 | Window Closed / Lapsed |