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US4630133A Expired / Lapsed US ⏱️ 0.0 years remaining

VCR with total record/view flexibility

Assignee: Zenith Electronics LLC
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Filing: 1985-03-14
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Granted: 1986-12-16
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Expires: 2005-03-14
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Abstract

Abstract A VCR includes a single two-way signal splitter and a plurality of RF switches for interconnecting a source of television signals, a television receiver, and a decoder or converter to enable complete flexibility in viewing of any channel while recording of any channel, including a channel requiring a decoder without incurring additional signal loss.

Inventors

  • 👤 Michael E. Long

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 01:34
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/765; H04N5/775; H04N5/7755

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 293 words
A video system comprising: a television receiver having a signal input; a decoder means having an input and an output; an antenna/cable source of multichannel signals, including a channel having an encoded signal; and a VCR having a first terminal connected to said source of multichannel signals, a second and a third terminal connected to the input and the output of said decoding means, respectively, and a fourth terminal connected to the signal input of said television receiver, said VCR including: a two-way signal splitter having an input, connected to said first terminal, and first and second outputs; recording means including a television signal tuner, a signal recording device and an RF modulator, said recording means having an input terminal and an output terminal; and switching apparatus comprising first, second, third, fourth and fifth switch means; said first switch means for establishing a conductive path from said first output of said splitter to said input of said decoding means or to said second and fourth switch means; said second switch means for establishing a conductive path from said second output of said splitter to said first switch means and said fourth switch means or to said third switch means; said third switch means for establishing a conductive path from the input of said recording means to said second switch means or to said output of said decoder means and said fourth switch means; said fourth switch means for establishing a connection to the output of said decoder means and said third switch means or to said first and said second switch means; and said fifth switch means for establishing a conductive path between said signal input of said television receiver and the output of said recording means or to said fourth switch means.
Claim 2
Dependent Claim 293 words
A video system comprising: a television receiver having a signal input; a decoder means having an input and an output; an antenna/cable source of multichannel signals, including a channel having an encoded signal; and a VCR having a first terminal connected to said source of multichannel signals, a second and a third terminal connected to the input and the output of said decoding means, respectively, and a fourth terminal connected to the signal input of said television receiver, said VCR including: a two-way signal splitter having an input, connected to said first terminal, and first and second outputs; recording means including a television signal tuner, a signal recording device and an RF modulator, said recording means having an input terminal and an output terminal; and switching apparatus comprising first, second, third, fourth and fifth switch means; said first switch means for establishing a conductive path from said first output of said splitter to said input of said decoding means or to said second and fourth switch means; said second switch means for establishing a conductive path from said second output of said splitter to said first switch means and said fourth switch means or to said third switch means; said third switch means for establishing a conductive path from the input of said recording means to said second switch means or to said output of said decoder means and said fourth switch means; said fourth switch means for establishing a connection to the output of said decoder means and said third switch means or to said first and said second switch means; and said fifth switch means for establishing a conductive path between said signal input of said television receiver and the output of said recording means or to said fourth switch means.
Claim 3
Dependent Claim 12 words
The system of claim 1, wherein said switch means comprise RF switches.

References Cited (Backward Citations)

US4031548A Cited
US4267563A Cited
US4272791A Cited
US4488179A Cited
US4400735A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-12-15 1990-06-16 1990-12-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-12-15 1994-06-16 1994-12-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-12-15 1998-06-16 1998-12-16 $7700.00 Window Closed / Lapsed

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