US4581645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distributed switched component audio/video system
Assignee: RCA Licensing Corp
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Filing: 1983-06-28
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Granted: 1986-04-08
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Expires: 2003-06-28
Abstract
Abstract An interconnection system for an audio and video component entertainment system includes a single conductor audio bus serially coupled between each of the video and audio components transfers audio signal in a "daisy-chain" manner among the components. The video components are grouped together separately from the audio components along the audio bus and both types of components supply and/or receive audio signals from the bus. A first switch in series with the audio bus separates the audio bus into first and second sections so as to allow simultaneous and independent audio signal transfer among the video and audio components connected to the separated sections of the audio bus. A single conductor video bus serially coupled between each of the video components transfers video signal in a "daisy-chain" manner among the video components. A second switch in series with the video bus separates the video bus into first and second sections so as to allow simultaneous and independent video signal transfer among video components connected to the separated sections of the video bus.
Inventors
- 👤 Billy W. Beyers, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:33
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/20; H04B1/207
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
259 words
Interconnection apparatus for transferring audio and video signals between a plurality of separate audio and audio/video components of a home entertainment system, said audio components including audio signal inputs and/or outputs and said audio/video components including audio and video signal inputs and/or outputs, comprising: an audio signal transmisson path for transferring an audio signal among said audio and audio/video components; a video signal transmission path for transferring a video signal among said audio/video components; a plurality of connection means, each of said connection means being associated with a respective one of said audio and audio/video components for connecting said audio signal inputs and/or outputs of said audio components to said audio signal transmission path at distributed locations adjacent one another along said audio transmission path and connecting said audio and video signal inputs and/or outputs of said audio/video components to said audio and video signal transmission paths, respectively, at distributed locations adjacent one another along said audio and video signal transmission paths, respectively; and audio switch means connected in series with said audio signal transmission path for selectively separating said transmission path into first and second audio path segments wherein all of said audio components are associated by their respective connection means with said first audio path segment and all of said audio/video components are associated by their respective connection means with said second audio path segment so as to allow simultaneous and independent audio signal transfer among said audio components connected to said first audio path segment and said audio/video components connected to said second audio path segment.
Claim 2
Dependent Claim
259 words
Interconnection apparatus for transferring audio and video signals between a plurality of separate audio and audio/video components of a home entertainment system, said audio components including audio signal inputs and/or outputs and said audio/video components including audio and video signal inputs and/or outputs, comprising: an audio signal transmisson path for transferring an audio signal among said audio and audio/video components; a video signal transmission path for transferring a video signal among said audio/video components; a plurality of connection means, each of said connection means being associated with a respective one of said audio and audio/video components for connecting said audio signal inputs and/or outputs of said audio components to said audio signal transmission path at distributed locations adjacent one another along said audio transmission path and connecting said audio and video signal inputs and/or outputs of said audio/video components to said audio and video signal transmission paths, respectively, at distributed locations adjacent one another along said audio and video signal transmission paths, respectively; and audio switch means connected in series with said audio signal transmission path for selectively separating said transmission path into first and second audio path segments wherein all of said audio components are associated by their respective connection means with said first audio path segment and all of said audio/video components are associated by their respective connection means with said second audio path segment so as to allow simultaneous and independent audio signal transfer among said audio components connected to said first audio path segment and said audio/video components connected to said second audio path segment.
Claim 3
Dependent Claim
38 words
The apparatus as recited in claim 1 wherein: one of said audio components associated by its respective connection means to said first segment and which is located nearest to said audio switch means, comprises an audio signal amplifier.
Claim 4
Dependent Claim
44 words
The apparatus recited in claim 2, wherein: one of said audio/video components associated by its respective connection means to said second segment and which is located nearest to said audio switch means, comprises a television monitor, including an internal audio signal amplifier and loudspeakers.
Claim 5
Dependent Claim
88 words
The apparatus recited in claim 1, further including: video switch means located in series with said video signal transmission path for selectively separating said video signal transmission path into first and second video path segments so as to simultaneously allow video signal transfer among those of said audio/video components which are associated by their respective connection means to said first video path segment, independently of video signal transfer among those of said audio/video components which are associated by their respective connection means to said second video path segment.
Claim 6
Dependent Claim
21 words
The apparatus recited in claim 4, wherein: said video switch means is located in a selected one of said connection means.
Claim 7
Dependent Claim
61 words
The apparatus recited in claim 5, further including: an additional audio switch means located in series with said second audio path segment for selectively separating said second audio path segment into third and fourth audio path segments having audio/video components respectively associated therewith which correspond with those of said audio/video components associated with said first and second video path segments, respectively.
Claim 8
Dependent Claim
27 words
The apparatus recited in claim 5, wherein: said additional audio switch means and said video switch means are located in the same one of said connection means.
Claim 9
Dependent Claim
75 words
The apparatus recited in claim 1, further including: a control signal transmission path adapted for transferring control signals among said plurality of said connection means associated with respective ones of said audio and audio/video components, for controlling the coupling of the audio and video signals by said connection means between respective ones of said audio and video signal inputs and/or outputs of said audio and audio/video components and said audio and video signal transmission paths.
Claim 10
Dependent Claim
42 words
The apparatus recited in claim 8, wherein: said video signal transmission path comprises a plurality of coaxial transmission lines, serially connected by respective ones of said plurality of said connection means in a daisy-chain fashion among said plurality of separate audio/video components.
Claim 11
Dependent Claim
38 words
The apparatus recited in claim 9, wherein: said audio signal transmission path comprises at least first and second signal conductors for transferring left and right stereo audio signals, respectively, among said plurality of separate audio and audio/video components.
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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) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |