Patent US5301352A successfully refreshed from Google Patents.
US5301352A
Expired / Lapsed
US
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Satellite broadcast receiving system and change-over divider for use in same
Assignee: Sony Corp
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Filing: 1992-06-26
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Granted: 1994-04-05
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Expires: 2012-06-26
Abstract
Abstract A satellite broadcast receiving system in which, when each receiver transmits a control pulse to a change-over divider via a signal cable, the change-over divider selects a desired broadcast signal in response to the control pulse, which is led to its output terminal, then transmitted to each receiver via the signal cable.
Inventors
- 👤 Yutaka Nakagawa
- 👤 Tadashi Kajiwara
- 👤 Keiji Fukuzawa
- 👤 Keiji Yuzawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:58
CPC Classifications
H; H04; H04H; H04H40/00; H04H40/18; H04H40/27; H04H40/90; H04H20/00; H04H20/53; H04H20/61; H04H20/63; H04H20/65; H04H20/71; H04H20/74; H04H20/76
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
220 words
A system for receiving broadcast satellite signals and communication satellite signals, comprising: a plurality of antennas disposed to receive said broadcast satellite and communications satellite signals; a plurality of converters mounted respectively on said plurality of antennas for respectively converting a frequency of said received broadcast satellite and communication satellite signals into a respective predetermined frequency; a change-over divider connected to said plurality of converters and having a plurality of output terminals, said change-over divider separately outputting a predetermined one of the frequency converted broadcast satellite and communication signals from said plurality of converters to said plurality of output terminals, respectively and a plurality of receivers connected to said plurality of output terminals of said change-over divider, said plurality of receivers providing a control pulse fed to said change-over divider for selecting one of said plurality of converters, respectively, said control pulse being combined with a converter power supply voltage supplied by said plurality of receivers to said plurality of converters through said change-over divider and a plurality of cables for connecting said plurality of output terminals of said change-over divider to said plurality of said receivers, respectively, and said control pulse, said converter power supply voltage and said predetermined one of the frequency converted broadcast satellite and communication signals transmitted over a single one of said plurality of cables.
Claim 2
Independent Claim
220 words
A system for receiving broadcast satellite signals and communication satellite signals, comprising: a plurality of antennas disposed to receive said broadcast satellite and communications satellite signals; a plurality of converters mounted respectively on said plurality of antennas for respectively converting a frequency of said received broadcast satellite and communication satellite signals into a respective predetermined frequency; a change-over divider connected to said plurality of converters and having a plurality of output terminals, said change-over divider separately outputting a predetermined one of the frequency converted broadcast satellite and communication signals from said plurality of converters to said plurality of output terminals, respectively and a plurality of receivers connected to said plurality of output terminals of said change-over divider, said plurality of receivers providing a control pulse fed to said change-over divider for selecting one of said plurality of converters, respectively, said control pulse being combined with a converter power supply voltage supplied by said plurality of receivers to said plurality of converters through said change-over divider and a plurality of cables for connecting said plurality of output terminals of said change-over divider to said plurality of said receivers, respectively, and said control pulse, said converter power supply voltage and said predetermined one of the frequency converted broadcast satellite and communication signals transmitted over a single one of said plurality of cables.
Claim 3
Dependent Claim
31 words
A system as claimed in claim 1, wherein said converter power supply voltage supplied by said plurality of receivers comprises a DC power voltage fed to said plurality of converters, respectively.
Claim 4
Dependent Claim
83 words
A system as claimed in claim 1, further comprising: antenna means disposed to receive UHF and VHF broadcast signals and produce non-converted output signals supplied to said change-over divider; said change-over divider including means for providing said non-converted output signals at least one of said plurality of output terminals; and receiver means connected to said at least one of said plurality of output terminals of said change-over divider, said receiver means receiving said non-converted output signals from said antenna means for display thereof.
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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) | 1997-04-04 | 1997-10-04 | 1998-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-04 | 2001-10-04 | 2002-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-04 | 2005-10-04 | 2006-04-05 | $7700.00 | Window Closed / Lapsed |