U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Packet header generation and detection circuitry

Patent 5712870 Issued on January 27, 1998. Estimated Expiration Date: Icon_subject July 31, 2015. 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

Spread PN code signal receiver
Patent #: 5179574
Issued on: 01/12/1993
Inventor: Watanabe, et al.

Medium access control protocol for wireless network
Patent #: 5371734
Issued on: 12/06/1994
Inventor: Fischer

Frequency synchronized bidirectional radio system
Patent #: 5377232
Issued on: 12/27/1994
Inventor: Davidov, et al.

Method and apparatus for exchanging different classes of data during different time intervals
Patent #: 5553095
Issued on: 09/03/1996
Inventor: Engdahl, et al.

Standalone canceller of narrow band interference for spread spectrum receivers Patent #: 5596600
Issued on: 01/21/1997
Inventor: Dimos, et al.

Inventor

Assignee

Application

No. 509462 filed on 07/31/1995

US Classes:

375/147, Receiver370/206, Quadrature carriers370/320, Code division (CDMA)375/279, Phase shift keying375/308Phase shift keying

Examiners

Primary: Chin, Wellington
Assistant: Tran, Congvan

Attorney, Agent or Firm

International Class

H04B 015/00

Abstract

A method and apparatus for receiving and transmitting direct sequence spread spectrum signals uses a single integrated device for converting and demodulating an RF signal into a serial data signal. Critical timing relationships during the acquisition and demodulation of the received signal are satisfied by the use of an integrated circuit specially designed to perform all operations needed to convert the physical signal to an media access circuit level data signal.

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