US5446505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color television system having broadcast program adaptive video/audio adjustment apparatus
Assignee: WiniaDaewoo Co Ltd
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Filing: 1994-02-09
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Granted: 1995-08-29
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Expires: 2014-02-09
Abstract
Abstract Automatically fine tuned pictures and sounds can be obtained from a novel color television system having a video/audio signal adjusting circuit, a remote controller operable for generating a program mode selection signal, a memory having a plurality of memory locations for storing operating parameter data for the video and the audio processing circuit corresponding to program modes, a microprocessor responsive to the program mode selection signal for receiving the operating parameter data corresponding thereto and for generating an audio control signal and a video control signal, a video signal adjusting circuit responsive to the video control signal for adjusting the video signal to have a video characteristic corresponding to the program mode selection signal, and an audio signal adjusting circuit responsive to the audio control signal for adjusting the audio signal to have a frequency band characteristic corresponding to the program mode selection signal.
Inventors
- 👤 Hong Chang Soo
- 👤 Cho Min Soo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:15
CPC Classifications
G; G04; G04G; G04G15/00; G04G15/006; G04G11/00; H; H04; H04N; H04N5/00; H04N5/44; H04N5/445; H04N21/00; H04N21/40; H04N21/47; H04N21/478; H04N5/57; H04N5/60
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
311 words
A color television system for receiving and reproducing a broadcast program having an audio and a video signals, which comprises: remote control means operable for generating a program mode selection signal wherein the remote control means includes a program mode selection key and a plurality of digit keys; character generating means responsive to the operation of the program mode selection key for generating character signals for displaying a selective list of program modes, and for enabling the digit keys to select the program modes; memory means having a plurality of memory locations for storing operating parameter data for video and audio signal adjusting means corresponding to the program modes wherein the operating parameter data corresponding to the program modes includes a brightness level, a contrast level, a color level, a tint level, and a sharpness level; microprocessor responsive to the program mode selection signal for receiving the operating parameter data corresponding thereto and for generating an audio and a video control signals representative of the operating parameter data; video signal adjusting means responsive to the video control signal for adjusting the video signal to have a video characteristic corresponding to the program mode selection signal wherein the video signal adjusting means includes a digital/analog converter for converting the video control signal into a set of pulse width modulation signals and a plurality of low pass filters for generating DC level signals corresponding to the pulse width modulation signals; and audio signal adjusting means responsive to the audio control signal for adjusting the audio signal to have a frequency band characteristic corresponding to the program mode selection signal wherein the audio signal processing means includes a high pass filter, a middle pass filter, a middle-low pass filter and a low pass filter; and includes a switching circuit responsive to the audio control signal for selecting one of the outputs from the filters.
Claim 2
Dependent Claim
311 words
A color television system for receiving and reproducing a broadcast program having an audio and a video signals, which comprises: remote control means operable for generating a program mode selection signal wherein the remote control means includes a program mode selection key and a plurality of digit keys; character generating means responsive to the operation of the program mode selection key for generating character signals for displaying a selective list of program modes, and for enabling the digit keys to select the program modes; memory means having a plurality of memory locations for storing operating parameter data for video and audio signal adjusting means corresponding to the program modes wherein the operating parameter data corresponding to the program modes includes a brightness level, a contrast level, a color level, a tint level, and a sharpness level; microprocessor responsive to the program mode selection signal for receiving the operating parameter data corresponding thereto and for generating an audio and a video control signals representative of the operating parameter data; video signal adjusting means responsive to the video control signal for adjusting the video signal to have a video characteristic corresponding to the program mode selection signal wherein the video signal adjusting means includes a digital/analog converter for converting the video control signal into a set of pulse width modulation signals and a plurality of low pass filters for generating DC level signals corresponding to the pulse width modulation signals; and audio signal adjusting means responsive to the audio control signal for adjusting the audio signal to have a frequency band characteristic corresponding to the program mode selection signal wherein the audio signal processing means includes a high pass filter, a middle pass filter, a middle-low pass filter and a low pass filter; and includes a switching circuit responsive to the audio control signal for selecting one of the outputs from the filters.
Claim 3
Dependent Claim
233 words
A color television system for receiving and reproducing a broadcast program having an audio and a video signals, which comprises: remote control means operable for generating program mode selection signal wherein the remote control means includes a program mode selection key and a plurality of digit keys; character generating means responsive to the operation of the program mode selection key for generating character signals for displaying a selective list of program modes, and for enabling the digit keys to select the program modes; memory means having a plurality of memory locations for storing operating parameter data for video signal adjusting means corresponding to the program modes wherein the operating parameter data corresponding to the program modes includes a brightness level, a contrast level, a color level, a tint level, and a sharpness level; microprocessor responsive to the program mode selection signal for receiving the operating parameter data corresponding thereto and for generating a video control signals representative of the operating parameter data; and video signal adjusting means responsive to the video control signal for adjusting the video signal to have a video characteristic corresponding to the program mode selection signal wherein the video signal adjusting means includes a digital/analog converter for converting the video control signal into a set of pulse width modulation signals and a plurality of low pass filters for generating DC level signals corresponding to the pulse width modulation signals.
Claim 4
Dependent Claim
233 words
A color television system for receiving and reproducing a broadcast program having an audio and a video signals, which comprises: remote control means operable for generating program mode selection signal wherein the remote control means includes a program mode selection key and a plurality of digit keys; character generating means responsive to the operation of the program mode selection key for generating character signals for displaying a selective list of program modes, and for enabling the digit keys to select the program modes; memory means having a plurality of memory locations for storing operating parameter data for video signal adjusting means corresponding to the program modes wherein the operating parameter data corresponding to the program modes includes a brightness level, a contrast level, a color level, a tint level, and a sharpness level; microprocessor responsive to the program mode selection signal for receiving the operating parameter data corresponding thereto and for generating a video control signals representative of the operating parameter data; and video signal adjusting means responsive to the video control signal for adjusting the video signal to have a video characteristic corresponding to the program mode selection signal wherein the video signal adjusting means includes a digital/analog converter for converting the video control signal into a set of pulse width modulation signals and a plurality of low pass filters for generating DC level signals corresponding to the pulse width modulation signals.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-08-28 | 1999-02-27 | 1999-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-28 | 2003-02-27 | 2003-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-28 | 2007-02-27 | 2007-08-29 | $7700.00 | Window Closed / Lapsed |