Patent US5684878A successfully refreshed from Google Patents.
US5684878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video signal recorder video apparatus and audio signal receiver
Assignee: Sony Corp
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Filing: 1996-04-02
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Granted: 1997-11-04
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Expires: 2016-04-02
Abstract
Abstract The VCR (video cassette recorder) inserts an index signal into a video signal at the time of recording, when information which will later become inaccurate at the time of playback is included in the video signal. The index signal prevents the VCR from using the inaccurate data at the time of playback. Further, tile VCR displays a message automatically when the broadcast signal selected by the user has no second audio signal, thereby allowing the user to grasp the reason why the receiver is producing no sound. Further, the main audio signal may be selected automatically, instead of the second audio signal, allowing the VCR to produce the sound.
Inventors
- 👤 Kazuhiro Nagura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:08
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/9201; H04N5/9206; G; G11; G11B; G11B27/00; G11B27/10; G11B27/102; G11B27/107; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/3036; G11B27/3054; G11B27/34; H04N5/78; H04N5/782; H04N9/00; H04N9/79; H04N9/80; H04N9/802; G11B2220/00; G11B2220/90; H04N9/82; H04N9/8205
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
114 words
An audio signal receiver, comprising: signal receiving means for receiving a broadcast signal comprised of a main audio signal, a second audio signal, and VBI data including information which indicates the presence of said second audio signal; audio output means for selectively producing a sound from at least one of said main audio signal or said second audio signal which are multiplexed together in said broadcast signal; and control means for detecting said information from said VBI data indicating the presence of said second audio signal and directing a display to display a message indicating that said second audio signal is not contained in said broadcast signal when said VBI data is not detected.
Claim 2
Dependent Claim
114 words
An audio signal receiver, comprising: signal receiving means for receiving a broadcast signal comprised of a main audio signal, a second audio signal, and VBI data including information which indicates the presence of said second audio signal; audio output means for selectively producing a sound from at least one of said main audio signal or said second audio signal which are multiplexed together in said broadcast signal; and control means for detecting said information from said VBI data indicating the presence of said second audio signal and directing a display to display a message indicating that said second audio signal is not contained in said broadcast signal when said VBI data is not detected.
Claim 3
Dependent Claim
108 words
An audio signal receiver, comprising: signal receiving means for receiving a broadcast signal comprised of a main audio signal, a second audio signal, and VBI data including information which indicates the presence of said second audio signal; audio output means for selectively producing a sound from at least one of said main audio signal or said second audio signal which are multiplexed together in said broadcast signal; and control means for detecting said information from said VBI data indicating the presence of said second audio signal and directing said audio output means to produce said sound from said main audio signal when said VBI data is not detected.
Claim 4
Dependent Claim
108 words
An audio signal receiver, comprising: signal receiving means for receiving a broadcast signal comprised of a main audio signal, a second audio signal, and VBI data including information which indicates the presence of said second audio signal; audio output means for selectively producing a sound from at least one of said main audio signal or said second audio signal which are multiplexed together in said broadcast signal; and control means for detecting said information from said VBI data indicating the presence of said second audio signal and directing said audio output means to produce said sound from said main audio signal when said VBI data is not detected.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-03 | 2001-05-05 | 2001-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-03 | 2005-05-05 | 2005-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-03 | 2009-05-05 | 2009-11-04 | $7700.00 | Window Closed / Lapsed |