Patent US4232296A successfully refreshed from Google Patents.
US4232296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote control/digital tuning interface with parallel operation with manual switches
Assignee: US Philips Corp
•
Filing: 1979-02-26
•
Granted: 1980-11-04
•
Expires: 1999-02-26
Abstract
Abstract A remote control-digital tuning interfacing system wherein an "on board" receiver at the means to be controlled receives coded transmission from the remote point and demodulates it to produce a digitally coded output which is fed to an "on board" decoder producing the appropriate control voltages to selectively operate electronic switching means. The electronic switching means parallel "on board" push-button operated switches so that a remote control operator can effect, from a remote point, the switching corresponding to that performed at the remote point, thus, only the switching is duplicated and the control complication all resides at the means to be controlled location rendering the system independent of different types of control operation.
Inventors
- 👤 Dominik Filipovic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:21
CPC Classifications
H; H03; H03J; H03J9/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
163 words
A system for interfacing a remote control unit with a receiver having a plurality of switches, said system comprising a remote control receiver having input means for receiving a signal encoded with a plurality of function control bits and an extra bit, a plurality of outputs for supplying said function control bits respectively, and an output for supplying said extra bit; a plurality of gates having first inputs coupled respectively to said plurality of outputs of said remote control receiver, second inputs, and outputs; a decoder having inputs coupled to said gate outputs respectively, and a plurality of outputs; a plurality of electronic switches having control inputs coupled to said decoder outputs respectively, and conduction electrodes adapted to be coupled in parallel to said receiver switches; and means coupled between said extra bit output means and said second inputs of said gates for ensuring that said function control bits are supplied to said decoder inputs only during the duration of said extra bit.
Claim 2
Independent Claim
163 words
A system for interfacing a remote control unit with a receiver having a plurality of switches, said system comprising a remote control receiver having input means for receiving a signal encoded with a plurality of function control bits and an extra bit, a plurality of outputs for supplying said function control bits respectively, and an output for supplying said extra bit; a plurality of gates having first inputs coupled respectively to said plurality of outputs of said remote control receiver, second inputs, and outputs; a decoder having inputs coupled to said gate outputs respectively, and a plurality of outputs; a plurality of electronic switches having control inputs coupled to said decoder outputs respectively, and conduction electrodes adapted to be coupled in parallel to said receiver switches; and means coupled between said extra bit output means and said second inputs of said gates for ensuring that said function control bits are supplied to said decoder inputs only during the duration of said extra bit.
Claim 3
Dependent Claim
51 words
An interface system as claimed in claim 1, wherein said ensuring means comprises a differentiator circuit coupled to said extra bit output of said remote control receiver, a bistable circuit coupled to said differentiator circuit, and a NOR gate coupled between said bistable circuit and said second inputs of said gates.
Claim 4
Dependent Claim
25 words
An interfacing system as claimed in claim 1, wherein said received signal is in BCD form, and said decoder comprises a BCD to decimal converter.
References Cited (Backward Citations)
US3028582A
Cited
US3471833A
Cited
US3588826A
Cited
US3968440A
Cited
US4005428A
Cited
US4041400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-04 | 1984-05-05 | 1984-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-04 | 1988-05-05 | 1988-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-04 | 1992-05-05 | 1992-11-04 | $7700.00 | Window Closed / Lapsed |