U.S. patents available from 1976 to present.
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Apparatus for exchanging data between a central station and a plurality of wireless remote stations on a time divided commnication channel

Patent 5677909 Issued on October 14, 1997. Estimated Expiration Date: Icon_subject October 14, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Adaptive hybrid multiple access protocols
Patent #: 5012469
Issued on: 04/30/1991
Inventor: Sardana

Wireless local area network communications system
Patent #: 5276703
Issued on: 01/04/1994
Inventor: Budin, et al.

Reservation-based polling protocol for a wireless data communications network Patent #: 5297144
Issued on: 03/22/1994
Inventor: Gilbert, et al.

Inventor

Assignee

Application

No. 241037 filed on 05/11/1994

US Classes:

370/347, Multiple access (e.g., TDMA)370/461Arbitration for access between contending stations

Examiners

Primary: Olms, Douglas W.
Assistant: Ton, Dang

Attorney, Agent or Firm

International Classes

H04J 003/16
337
338
346
347
350
400
420
421
413
414
427
445
447
449
454
458
459
461
50 3

Abstract

An apparatus is provided for exchanging data between a central station and a plurality of wireless remote stations on a time division multiple access communication channel. The apparatus includes device for receiving access requests from remote stations of the plurality of remote stations during a first time interval under a contention based protocol and a non-contention based protocol and device for polling for data transfers during a second time period remote stations of the plurality of remote stations providing access requests under non-contention based protocols during the first time period.

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