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Spread spectrum receiver with fast signal reacquisition

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01C-021/00
  • H04L-071/85
출원번호 US-0638882 (1996-04-25)
발명자 / 주소
  • Kohli Sanjai
  • Chen Steven
출원인 / 주소
  • SiRF Technology, Inc.
대리인 / 주소
    Irell & Manella LLP
인용정보 피인용 횟수 : 67  인용 특허 : 114

초록

A spread spectrum receiver, such as a GPS car navigation system, uses multiple, parallel correlations of data in a wide capture window, permits seamless tracking and rapid reacquisition of satellite signals at speeds sufficient to permit position information updates during momentary views available

대표청구항

[ What is claimed is:] [1.] A method of tracking a spread spectrum source, comprising the steps of:acquiring the source from a composite of signals received by determining a delay parameter for that source related to time of receipt of a source specific spread spectrum code in the signals from the s

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