US4675732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Satellite/hybrid television system
Assignee: NORDSPACE AB
•
Filing: 1985-12-10
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Granted: 1987-06-23
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Expires: 2005-12-10
Abstract
Abstract A satellite TV system including a plurality of channel strips and a control computer wherein each channel strip includes a tuner and a modulator matched to each other and are both computer controlled. The tuner selects the particular satellite signal and the modulator selects the particular channel position on the TV. Both tuner and modulator circuits include a divide by 2 component which permits use of lower cost electronic components while producing high quality TV pictures or other outputs.
Inventors
- 👤 Lykke Oleson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:54
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/20; H04N7/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
202 words
A satellite TV system to supply a plurality of TVs comprising a dish antenna for receiving a plurality of satellite TV signals simultaneously, splitter means for receiving the satellite TV signals and to split said plurality of satellite TV signals into individual satellite TV signals, a plurality of channel strips to receive input signals including said individual ones of said satellite TV signals, said channel strips each comprising a series array of a single tuner circuit and a modulator circuit, said tuner and modulator circuits being matched to each other, the number of said channel strips being in the ratio of no more than two to one to the number of said individual satellite TV signals, all of said input signals being in the gigahertz range, a control computer, a signal distribution and control matrix between said plurality of channel strips and said plurality of TVs supplied by the system, said matrix receiving all of said individual satellite TV signals and controlling the interconnections between all of said signals and all of said TVs on an individual basis, and said computer controlling said channel strips to match a particular input signal to a particular pre-tuned TV channel frequency on a particular TV.
Claim 2
Dependent Claim
202 words
A satellite TV system to supply a plurality of TVs comprising a dish antenna for receiving a plurality of satellite TV signals simultaneously, splitter means for receiving the satellite TV signals and to split said plurality of satellite TV signals into individual satellite TV signals, a plurality of channel strips to receive input signals including said individual ones of said satellite TV signals, said channel strips each comprising a series array of a single tuner circuit and a modulator circuit, said tuner and modulator circuits being matched to each other, the number of said channel strips being in the ratio of no more than two to one to the number of said individual satellite TV signals, all of said input signals being in the gigahertz range, a control computer, a signal distribution and control matrix between said plurality of channel strips and said plurality of TVs supplied by the system, said matrix receiving all of said individual satellite TV signals and controlling the interconnections between all of said signals and all of said TVs on an individual basis, and said computer controlling said channel strips to match a particular input signal to a particular pre-tuned TV channel frequency on a particular TV.
Claim 3
Dependent Claim
12 words
The system of claim 1, and means to remotely control said computer.
Claim 4
Dependent Claim
33 words
The system of claim 1, and means to input signals other than said satellite signals including local TV signals, VCR signals, video camera signals, data, and the like for distribution to said TVs.
Claim 5
Dependent Claim
30 words
The system of claim 1, and said matrix including switch means controlled by said computer to block selected ones of said TVs from receiving selected ones of said input signals.
Claim 6
Dependent Claim
12 words
The system of claim 1, and timer means associated with said computer.
Claim 7
Dependent Claim
22 words
The system of claim 1, motor means to control the position of said dish antenna, and said computer controlling said motor means.
Claim 8
Dependent Claim
26 words
The system of claim 1, and battery back-up memory means associated with said computer to retain the computer programming in the event of a power failure.
Claim 9
Dependent Claim
49 words
The system of claim 1, each tuner circuit in each of said channel strips also being matched under the control of said computer to a particular incoming satellite signal and said modulator circuit also being matched under the control of said computer to a particular pre-tuned TV channel frequency.
Claim 10
Dependent Claim
20 words
The system of claim 8, and each of said tuner and modulator circuit including a frequency divide by 2 component.
Claim 11
Dependent Claim
41 words
The system of claim 9, each of said tuner and modulator circuits including a loop circuit of an oscillator, a PLL and said divide by 2 component, and said loop inputting into a mixer component which also receives an input signal.
Claim 12
Dependent Claim
21 words
The system of claim 10, and the control signals from said computer entering said tuner and modulator circuits at said PLL.
Claim 13
Dependent Claim
21 words
The system of claim 10, and said tuner including a loop circuit of said mixer, a saw filter and an AFC.
Claim 14
Dependent Claim
36 words
The system of claim 2, and display means associated with said remote control means, said display means including an array of LEDs to indicate which TVs of said plurality are blocked from receiving which input signals.
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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) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |