US5479267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for combining VCR and TV
Assignee: Hashimoto Corp
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Filing: 1995-05-19
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Granted: 1995-12-26
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Expires: 2015-05-19
Abstract
Abstract A video cassette recorder (VCR) automatically controlled by the "G Code" ("Plus Code") and a television set for monitoring purposes each have their own tuner. A user is able to monitor on the TV set a program designated by the "G Code," even though the VCR does not operate because no videotape has been loaded into the VCR. On the other hand, when a videotape is loaded into the VCR, the user is also able to monitor on the TV set the program, which is being recorded on the VCR, without manually operating the TV set, or monitor on the TV set a program on a channel different from that of the VCR by changing the channel of the tuner for the TV set.
Inventors
- 👤 Kazuo Hashimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:25
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/765; H04N5/775
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
278 words
A device for interfacing a video cassette recorder (VCR) with a television set having a video display, said VCR and television set having respective tuners, and the VCR tuner being of a type responsive automatically to program reservation codes of "VCR plus" type via a remote control unit, the device comprising: means for detecting whether a videotape is loaded in said VCR; a switch for supplying to said television set signals from the tuner of said VCR or from the tuner of said television set; means responsive to said detecting means for controlling said switch between a first operating state (1) to supply said video display with signals from the tuner of said VCR in response to activating said VCR by said remote control unit in accordance with a VCR program reservation code, when no tape is loaded in said VCR, so that the output of the VCR tuner can be monitored by a user, and a second operating state (2) to supply said video display with signals from the tuner of said television set to display a first TV program while said VCR tuner is operating to record a second TV program in accordance with a VCR program reservation code, when a videotape is loaded in said VCR, so that the user can watch on the television set a TV program different from that of the VCR; and a manual control element for operating said switch to supply said video display with signals from the tuner of said VCR for monitoring the second TV program, said manual control element simulating that no tape is loaded in the VCR even when a videotape is loaded in the VCR.
Claim 2
Independent Claim
278 words
A device for interfacing a video cassette recorder (VCR) with a television set having a video display, said VCR and television set having respective tuners, and the VCR tuner being of a type responsive automatically to program reservation codes of "VCR plus" type via a remote control unit, the device comprising: means for detecting whether a videotape is loaded in said VCR; a switch for supplying to said television set signals from the tuner of said VCR or from the tuner of said television set; means responsive to said detecting means for controlling said switch between a first operating state (1) to supply said video display with signals from the tuner of said VCR in response to activating said VCR by said remote control unit in accordance with a VCR program reservation code, when no tape is loaded in said VCR, so that the output of the VCR tuner can be monitored by a user, and a second operating state (2) to supply said video display with signals from the tuner of said television set to display a first TV program while said VCR tuner is operating to record a second TV program in accordance with a VCR program reservation code, when a videotape is loaded in said VCR, so that the user can watch on the television set a TV program different from that of the VCR; and a manual control element for operating said switch to supply said video display with signals from the tuner of said VCR for monitoring the second TV program, said manual control element simulating that no tape is loaded in the VCR even when a videotape is loaded in the VCR.
Claim 3
Dependent Claim
12 words
The device of claim 1, wherein said switch comprises an analog switch.
Claim 4
Dependent Claim
18 words
The device of claim 1, wherein said manual control element drives a flip flop for controlling said switch.
Claim 5
Dependent Claim
17 words
The device of claim 3, wherein said flip flop further controls a stop function of said VCR.
Claim 6
Dependent Claim
28 words
The device of claim 4, wherein said manual control drives said flip flop between first and second logic states, alternately with successive manual operations of said control element.
Claim 7
Dependent Claim
36 words
The device of claim 1, including a logic gate having input terminals supplied by signals from said videotape detecting means and said manual control element, and an output terminal supplying a control signal to said switch.
References Cited (Backward Citations)
US3932889A
Cited
US4527133A
Cited
US4706141A
Cited
US4706121A
Cited
US4706121B1
Cited
US5307173A
Cited
US5335079A
Cited
US5193009A
Cited
US5223995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-12-25 | 1999-06-26 | 1999-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-25 | 2003-06-26 | 2003-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-25 | 2007-06-26 | 2007-12-26 | $7700.00 | Window Closed / Lapsed |