Patent US2932477A successfully refreshed from Google Patents.
Patent US5477274A successfully refreshed from Google Patents.
US5477274A
Expired / Lapsed
US
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Closed caption decoder capable of displaying caption information at a desired display position on a screen of a television receiver
Assignee: Sanyo Electric Co Ltd
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Filing: 1994-02-17
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Granted: 1995-12-19
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Expires: 2014-02-17
Abstract
Abstract The display address contained in the caption signal sent from the sending side is converted into a desired display address by a closed caption decoder at the receiving side. The display position of the caption information is moved at the receiving side in order to prevent the superimposed information incorporated in the video signal from being overlapped with the caption information.
Inventors
- 👤 Koichiro Akiyoshi
- 👤 Shuichi Kinoshita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:58
CPC Classifications
H; H04; H04N; H04N21/00; H04N21/40; H04N21/47; H04N21/488; H04N21/4884; H04N7/00; H04N7/08; H04N7/087; H04N7/088; H04N7/0884; H04N7/0885
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
60 words
A closed caption decoder, comprising: means for detecting a display address contained in a caption signal multiplexed on a video signal; means for designating, based on a detection of said display address, a display position of the caption information on a screen; and means for converting the detected display address into a display address corresponding to the designated display position.
Claim 2
Dependent Claim
60 words
A closed caption decoder, comprising: means for detecting a display address contained in a caption signal multiplexed on a video signal; means for designating, based on a detection of said display address, a display position of the caption information on a screen; and means for converting the detected display address into a display address corresponding to the designated display position.
Claim 3
Dependent Claim
25 words
A television receiver comprising a closed caption decoder according to claim 1, wherein the caption information is displayed on a screen together with an image.
Claim 4
Dependent Claim
72 words
A closed caption decoder, comprising: means for extracting an encoded caption signal multiplexed during a vertical retrace period of a video signal; means for decoding the extracted caption signal; means for designating, based on a detection of a display address, a display position of the caption information on a screen; and means for converting a display address contained in the caption signal into said display address corresponding to the designated display position.
Claim 5
Dependent Claim
72 words
A closed caption decoder, comprising: means for extracting an encoded caption signal multiplexed during a vertical retrace period of a video signal; means for decoding the extracted caption signal; means for designating, based on a detection of a display address, a display position of the caption information on a screen; and means for converting a display address contained in the caption signal into said display address corresponding to the designated display position.
Claim 6
Dependent Claim
100 words
A closed caption decoder, comprising: means for detecting a display address contained in a caption signal multiplexed on a video signal; means for detecting the display period of the caption information based on a result of a display address detection; means for deciding whether character information is contained in the video signal during the display period of the caption information; and means for converting the detected display address into a display address different from that for the character information in the video signal in the case where decision is made that the character information is contained in the video signal.
Claim 7
Dependent Claim
100 words
A closed caption decoder, comprising: means for detecting a display address contained in a caption signal multiplexed on a video signal; means for detecting the display period of the caption information based on a result of a display address detection; means for deciding whether character information is contained in the video signal during the display period of the caption information; and means for converting the detected display address into a display address different from that for the character information in the video signal in the case where decision is made that the character information is contained in the video signal.
Claim 8
Dependent Claim
25 words
A television receiver comprising a closed caption decoder according to claim 4, wherein the caption information is displayed on a screen together with an image.
Claim 9
Dependent Claim
115 words
A closed caption decoder comprising: means for extracting an encoded caption signal multiplexed during a vertical retrace period of a video signal; means for decoding the extracted caption signal; means for detecting the display period of the caption information from the decoding result; means for deciding whether character information is contained in the video signal during the display period of the caption information; and means for converting a display address contained in the caption signal into a display address corresponding to the display position not overlapped with the display position of the character information in the video signal in the case where decision is made that the character information is contained in the video signal.
Claim 10
Dependent Claim
115 words
A closed caption decoder comprising: means for extracting an encoded caption signal multiplexed during a vertical retrace period of a video signal; means for decoding the extracted caption signal; means for detecting the display period of the caption information from the decoding result; means for deciding whether character information is contained in the video signal during the display period of the caption information; and means for converting a display address contained in the caption signal into a display address corresponding to the display position not overlapped with the display position of the character information in the video signal in the case where decision is made that the character information is contained in the video signal.
References Cited (Backward Citations)
US3897792A
Cited
JPS6184185A
Cited
US4954882A
Cited
US5138450A
Cited
US5045941A
Cited
US4965670A
Cited
JPH04159878A
Cited
US5327174A
Cited
US5315386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-12-18 | 1999-06-19 | 1999-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-18 | 2003-06-19 | 2003-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-18 | 2007-06-19 | 2007-12-19 | $7700.00 | Window Closed / Lapsed |