Patent US3750175A successfully refreshed from Google Patents.
US3750175A
Expired / Lapsed
US
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Modular electronics communication system
Assignee: Texas Instruments Inc
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Filing: 1969-11-25
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Granted: 1973-07-31
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Expires: 1989-11-25
Abstract
Abstract A communication system including a plurality of radiating elements formed into an antenna array for transmitting and receiving communication frequency signals and employing a central processor to generate the transmitted signals and process the received frequencies through a manifold arrangement. Each radiating element connects to the manifold through a module made up of integrated microwave circuitry including a mixer coupled to a local oscillator and a phase shifter coupled to a beam steering computer. By means of the beam steering computer the antenna can be made to scan various preselected areas.
Inventors
- 👤 R Lockerd
- 👤 M Smith
- 👤 R Cooper
- 👤 G Goode
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:59
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/26; H01Q3/30; H01Q3/34; H01Q3/36; H01Q3/38; H01Q21/00; H01Q21/0006; H01Q21/0025
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
192 words
A communication system having a central processor for generating a transmitted signal and processing a received signal comprising: an antenna array of a plurality of transmitting/receiving elements, and a transmit/receive module for each element of said antenna array, said module including phase shift means for shifting the phase of a transmitted signal generated by said central processor independent of signals received at the antenna array, power amplification means for increasing the power of said transmitted signal, frequency converting means for converting a low frequency signal to a high frequency transmit signal, a transmit channel coupling said phase shift means and said power amplification means to said frequency converting means to convey phase shifted transmitted signals of increased power to said element, said module also including phase shift means for selecting the phase of the received signal processed by the central processor independent of the transmitted signal, a filter for separating a received signal frequency from other signals, and a receive channel being coupled to said filter and said phase shift means for conveying a received signal to said central processor, said receive channel including a mixer coupled to said phase shift means.
Claim 2
Dependent Claim
192 words
A communication system having a central processor for generating a transmitted signal and processing a received signal comprising: an antenna array of a plurality of transmitting/receiving elements, and a transmit/receive module for each element of said antenna array, said module including phase shift means for shifting the phase of a transmitted signal generated by said central processor independent of signals received at the antenna array, power amplification means for increasing the power of said transmitted signal, frequency converting means for converting a low frequency signal to a high frequency transmit signal, a transmit channel coupling said phase shift means and said power amplification means to said frequency converting means to convey phase shifted transmitted signals of increased power to said element, said module also including phase shift means for selecting the phase of the received signal processed by the central processor independent of the transmitted signal, a filter for separating a received signal frequency from other signals, and a receive channel being coupled to said filter and said phase shift means for conveying a received signal to said central processor, said receive channel including a mixer coupled to said phase shift means.
Claim 3
Dependent Claim
38 words
A communication system as set forth in claim 1 wherein said transmit/receive module includes in the receive portion a multiplier to change the frequency of the output of the phase shift means prior to coupling to said mixer.
Claim 4
Dependent Claim
25 words
A communication system as set forth in claim 2 wherein said transmit/receive module includes in said receive channel an IF filter-amplifier coupled to said mixer.
Claim 5
Dependent Claim
17 words
A communication system as set forth in claim 1 wherein said frequency converting means is a multiplier.
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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |