US4571640A
Expired / Lapsed
US
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Video disc program branching system
Assignee: Lockheed Martin Corp
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Filing: 1982-11-01
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Granted: 1986-02-18
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Expires: 2002-11-01
Abstract
Abstract A video disc program branching system comprising multiple programs frequency multiplexed on a video disc and co-located substantially in the same portion of the disc wherein branching is achieved by designating specific ones of said multiple programs through frequency band selection.
Inventors
- 👤 Ralph H. Baer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:51
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/102; G11B27/105; G09; G09B; G09B5/00; G09B5/06; G09B5/065; G11B17/00; G11B17/005; H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/9201; H04N5/9205; G11B2220/00; G11B2220/20
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
54 words
A video disc program branching system comprising: a video disc player; a video disc having recorded thereon a plurality of groups of signals co-located on substantially the same portion of the disc, each group containing different program material recorded at different frequencies; and means for branching by selecting predetermined ones of said multiple programs.
Claim 2
Dependent Claim
54 words
A video disc program branching system comprising: a video disc player; a video disc having recorded thereon a plurality of groups of signals co-located on substantially the same portion of the disc, each group containing different program material recorded at different frequencies; and means for branching by selecting predetermined ones of said multiple programs.
Claim 3
Dependent Claim
20 words
The system of claim 1 wherein said groups of programs are co-located in the same groove of the video disc.
Claim 4
Dependent Claim
23 words
The system of claim 1 wherein said selection means includes tuning apparatus responsive only to predetermined ones of said selected groups of signals.
Claim 5
Dependent Claim
38 words
A video disc program branching system, comprising: a video disc having frequency multiplexed thereon multiple related programs co-located in substantially the same portion of said disc; and means for branching by selecting specific ones of said multiple programs.
Claim 6
Dependent Claim
38 words
A video disc program branching system, comprising: a video disc having frequency multiplexed thereon multiple related programs co-located in substantially the same portion of said disc; and means for branching by selecting specific ones of said multiple programs.
Claim 7
Independent Claim
43 words
A method of effecting rapid branching of multiple programs frequency multiplex recorded on substantially the same portion of a video disc, comprising the steps of: selecting specific ones of said multiple programs; and passband filtering the recorded signal to output the selected program.
Claim 8
Independent Claim
43 words
A method of effecting rapid branching of multiple programs frequency multiplex recorded on substantially the same portion of a video disc, comprising the steps of: selecting specific ones of said multiple programs; and passband filtering the recorded signal to output the selected program.
Claim 9
Dependent Claim
59 words
A video recording medium branching system, comprising: a video playback unit; a video recording medium having recorded thereon a plurality of programs which are co-located on substantially the same portion of the video recording medium; means for responding to one of such programs which is displayed; and means responsive to said responding means to display another of such programs.
Claim 10
Dependent Claim
59 words
A video recording medium branching system, comprising: a video playback unit; a video recording medium having recorded thereon a plurality of programs which are co-located on substantially the same portion of the video recording medium; means for responding to one of such programs which is displayed; and means responsive to said responding means to display another of such programs.
Claim 11
Independent Claim
61 words
A method of effecting rapid branching between multiple programs recorded on a video disc, comprising the steps of: displaying one of such programs; selecting a response to the information displayed by said one program; and displaying another of such programs in accordance with such selected response by bandpass filtering the recorded programs to couple only a single program to a display.
Claim 12
Independent Claim
61 words
A method of effecting rapid branching between multiple programs recorded on a video disc, comprising the steps of: displaying one of such programs; selecting a response to the information displayed by said one program; and displaying another of such programs in accordance with such selected response by bandpass filtering the recorded programs to couple only a single program to a display.
Claim 13
Dependent Claim
74 words
A video disc program branching system, comprising: a video disc having recorded thereon a plurality of groups of signals co-located on substantially the same portion of the disc, each group containing different program material and comprising a different band of frequencies; means for displaying at least one of said programs; means for electing a particular response to said displayed one program; and means for displaying another of said programs depending on the elected response.
Claim 14
Dependent Claim
74 words
A video disc program branching system, comprising: a video disc having recorded thereon a plurality of groups of signals co-located on substantially the same portion of the disc, each group containing different program material and comprising a different band of frequencies; means for displaying at least one of said programs; means for electing a particular response to said displayed one program; and means for displaying another of said programs depending on the elected response.
Claim 15
Dependent Claim
35 words
The system of claim 8 wherein said means for displaying another of said programs includes a plurality of bandpass filters, one of which is coupled to said video disc in response to said election means.
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) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |