Patent US5884189A successfully refreshed from Google Patents.
US5884189A
Expired / Lapsed
US
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Multiple-modes adaptable radiotelephone
Assignee: Panasonic Holdings Corp
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Filing: 1997-08-13
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Granted: 1999-03-16
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Expires: 2017-08-13
Abstract
Abstract A multiple-modes adaptable radiotelephone adaptable to multiple communication modes, which is communicable with any of a cellular phone, cordless telephone and PCS telephone. The radiotelephone includes a single wireless transceiver for modulating and demodulating signals in the transmitting/receiving frequency bands of a cellular telephone system and a cordless telephone system. The transmitting/receiving frequency bands of the cordless telephone system are located closed to those of the cellular telephone system. A control unit, which has a PCS software installed therein, is provided for controlling the wireless transceiver.
Inventors
- 👤 Seiichi Yamazaki
- 👤 Sumio Endo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:27
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/02; H04W88/06; H04B; H04B1/00; H04B1/005; H04B1/0053; H04B1/0057; H04B1/38; H04B1/40; H04B1/403; H04B1/406
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
93 words
A multiple-modes adaptable radiotelephone which is adapted for use in multiple communication modes, and which is communicable with any of cellular telephone system, cordless telephone system, and PCS telephone system, comprising: a single wireless transceiver for modulating and demodulating signals in a transmitting/receiving frequency band of a cellular telephone system and a cordless telephone system, said cordless telephone system transmitting/receiving frequency band being located close to the transmitting/receiving frequency band of the cellular telephone system; a control unit for controlling said wireless transceiver; and a PCS software being installed in said control unit.
Claim 2
Dependent Claim
93 words
A multiple-modes adaptable radiotelephone which is adapted for use in multiple communication modes, and which is communicable with any of cellular telephone system, cordless telephone system, and PCS telephone system, comprising: a single wireless transceiver for modulating and demodulating signals in a transmitting/receiving frequency band of a cellular telephone system and a cordless telephone system, said cordless telephone system transmitting/receiving frequency band being located close to the transmitting/receiving frequency band of the cellular telephone system; a control unit for controlling said wireless transceiver; and a PCS software being installed in said control unit.
Claim 3
Dependent Claim
41 words
The multiple-modes adaptable radiotelephone according to claim 1, wherein: said wireless transceiver modulates and demodulates signals in the transmitting/receiving frequency bands of an AMPS cellular telephone and an ISM band cordless telephone, and said PCS software is designed according to IS-94.
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) | 2002-03-15 | 2002-09-14 | 2003-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-15 | 2006-09-14 | 2007-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-15 | 2010-09-14 | 2011-03-16 | $7700.00 | Window Closed / Lapsed |