Patent US3297021A successfully refreshed from Google Patents.
US4437095A
Expired / Lapsed
US
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Selective call receiver having timed power supply
Assignee: TELEGRAPH & TELEPHONE PUBLIC Corp A CORP OF JAPAN
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Filing: 1981-12-01
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Granted: 1984-03-13
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Expires: 2001-12-01
Abstract
Abstract A selective call receiver with display is disclosed. The receiver includes a decoder comprised of a reception controller in the form of a dedicated LSI circuit and a display controller in the form of a single chip CPU which, in combination, overcomes inherent weakness in each, namely the relatively large power consumption of a single chip CPU and the difficulty of reconfiguring a dedicated LSI circuit to perform different and/or additional functions.
Inventors
- 👤 Masaaki Akahori
- 👤 Takashi Ohyagi
- 👤 Shozo Nishimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:39
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/02; H04W52/0209; H04W52/0225; H04W52/0229; H04W88/00; H04W88/02; H04W88/022; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
165 words
A selective call receiver with display comprising: receiver means which receives electromagnetic waves and produces digital received signals; display means to display received data; display controller means for controlling said display means; memory means which stores call numbers; means responsive to a decoded signal to indicate the paging of the receiver; reception controller means powered by a power supply, said reception controller means, upon receipt of the digital received signals produced by the receiver means, generating synchronizing pulse signals and comparing said digital received signals with said call number to provide said decoded signal, said reception controller further generating timing signals for connecting and disconnecting the power supply from receiver means and said display controller means; first switching means which controls the connecting and disconnecting of the power supply to said receiver means in response to said timing signals; and second switching means which controls the connecting and disconnecting of the power supply to the display controller means in response to said synchronizing pulse signals.
Claim 2
Dependent Claim
165 words
A selective call receiver with display comprising: receiver means which receives electromagnetic waves and produces digital received signals; display means to display received data; display controller means for controlling said display means; memory means which stores call numbers; means responsive to a decoded signal to indicate the paging of the receiver; reception controller means powered by a power supply, said reception controller means, upon receipt of the digital received signals produced by the receiver means, generating synchronizing pulse signals and comparing said digital received signals with said call number to provide said decoded signal, said reception controller further generating timing signals for connecting and disconnecting the power supply from receiver means and said display controller means; first switching means which controls the connecting and disconnecting of the power supply to said receiver means in response to said timing signals; and second switching means which controls the connecting and disconnecting of the power supply to the display controller means in response to said synchronizing pulse signals.
Claim 3
Dependent Claim
27 words
A selective call receiver according to claim 1 wherein said reception controller means comprises a dedicated LSI and said display controller means comprises a one chip CPU.
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) | 1987-03-13 | 1987-09-12 | 1988-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-13 | 1991-09-12 | 1992-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-13 | 1995-09-12 | 1996-03-13 | $7700.00 | Window Closed / Lapsed |