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
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)
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 |