Patents Represented by Attorney Philip R. Wadsworht
  • Patent number: 6154101
    Abstract: A novel and improved method and apparatus for a fast-slewing pseudorandom noise sequence generator is described. One or more loadable PN generators are controlled by a DSP or microprocessor in conjunction with a free-running counter which maintains a reference offset count. The PN generator will typically be part of a finger or searcher. The DSP or microprocessor may assist in other finger or searcher functions as well as the slew function, and can control one or more fingers and/or searchers. Each PN generator is comprised of a loadable linear feedback shift register (LFSR) or its equivalent, a loadable counter for maintaining an index of the state of that particular PN generator, and a slew control device capable of receiving a slew command and controlling the LFSR and index counter to enact an advance or a retard of a certain offset distance.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: November 28, 2000
    Assignee: Qualcomm Incorporated
    Inventors: Qiuzhen Zou, Gilbert C. Sih, Avneesh Agrawal