US5497424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spread spectrum wireless telephone system
Assignee: OMINPOINT Corp
•
Filing: 1994-02-07
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Granted: 1996-03-05
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Expires: 2014-02-07
Abstract
Abstract A system for accessing a telephone system, in which a set of user stations are matched with a set of base stations for connection to a telephone network. Each base station may be coupled directly or indirectly to the telephone network and may be capable of initiating or receiving calls on the telephone network. Each user station may comprise a spread-spectrum transmitter or receiver and may be capable of dynamic connection to selected base stations. A plurality of base stations may be coupled to a private exchange telephone system for coupling user stations in calls outside the telephone network. User stations may use CDMA, FDMA, TDMA or other multiple-access techniques to obtain one or more clear communication paths to base stations. Base stations may be placed at convenient locations or may themselves be mobile. User stations may make and break connections with base stations as the user station moves between service regions, or is otherwise more advantageously serviced by, base stations. User stations may direct requests to and receive information from an enhanced telephone services processor, so as to obtain enhanced telephone services within the telephone network. Base stations may be coupled to each other by means of a private exchange. telephone system or other small business telephone system (such as a PBX, Centrex, or key-type system) so as to couple user stations in calls outside the telephone network. User stations may also be coupled directly or indirectly to the telephone network on their own or by another
Inventors
- 👤 Jeffrey S. Vanderpool
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:54
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/0005; H04W36/0055; H04W36/0066; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2618; H04B7/2628; H04J; H04J13/00; H04W36/14; H04W36/142; H04W4/00; H04W4/16; H04W76/00; H04W76/10; H04W84/00; H04W84/02; H04W84/10; H04W84/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
187 words
A wireless communication system, comprising a first base station coupled to a telephone network and having means for initiating a call on said telephone network and means for receiving a call on said telephone network, means for establishing a first communication path between a user station and said first base station, said first communication path comprising a first link supporting spread-spectrum communication, wherein said first communication path is completed between said first base station and said user station when said user station initiates or receives a call on said telephone network, and wherein said user station is capable of being handed-off from said first base station to a second base station, means for establishing a second communication path between said first base station and said user station over which said user station is capable of initiating or receiving a different call, said second communication path comprising a second link between said user station and an intermediary communication element coupled to said first base station, and means for transmitting a set of signals to be communicated between said base station and said user station by multiplexing said signals.
Claim 2
Dependent Claim
187 words
A wireless communication system, comprising a first base station coupled to a telephone network and having means for initiating a call on said telephone network and means for receiving a call on said telephone network, means for establishing a first communication path between a user station and said first base station, said first communication path comprising a first link supporting spread-spectrum communication, wherein said first communication path is completed between said first base station and said user station when said user station initiates or receives a call on said telephone network, and wherein said user station is capable of being handed-off from said first base station to a second base station, means for establishing a second communication path between said first base station and said user station over which said user station is capable of initiating or receiving a different call, said second communication path comprising a second link between said user station and an intermediary communication element coupled to said first base station, and means for transmitting a set of signals to be communicated between said base station and said user station by multiplexing said signals.
Claim 3
Dependent Claim
16 words
A system as in claim 1, wherein said intermediary communication element comprises a cellular base station.
Claim 4
Dependent Claim
15 words
A system as in claim 1, wherein said intermediary communication element comprises a cluster controller.
Claim 5
Dependent Claim
26 words
A system as in claim 16, wherein said second communication path further comprises a link from said intermediary communication element to a private exchange telephone system.
Claim 6
Dependent Claim
16 words
A system as in claim 1, wherein said intermediary communication element comprises an augmented base station.
Claim 7
Dependent Claim
17 words
A system as in claim 1, wherein a narrowband signal is transmitted over said second communication path.
Claim 8
Dependent Claim
17 words
A system as in claim 1, wherein said set of signals are multiplexed using different frequency bands.
Claim 9
Dependent Claim
18 words
A system as in claim 1, wherein said set of signals are multiplexed using different spread spectrum codes.
Claim 10
Dependent Claim
17 words
A system as in claim 1, wherein said set of sinals are multiplexed using different station identifiers.
Claim 11
Dependent Claim
16 words
A system as in claim 1, wherein said set of signals are multiplexed using different timeslots.
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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) | 1999-03-05 | 1999-09-04 | 2000-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-05 | 2003-09-04 | 2004-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-05 | 2007-09-04 | 2008-03-05 | $7700.00 | Window Closed / Lapsed |