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Method and apparatus for resolving phase ambiguities in trellis coded modulated data 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04L-027/20
출원번호 US-0695397 (1991-05-03)
발명자 / 주소
  • Wolf Jack K. (Rancho Mirage CA)
출원인 / 주소
  • Qualcomm Incorporated (San Diego CA 02)
인용정보 피인용 횟수 : 117  인용 특허 : 0

초록 ▼

A codec for resolving transmission phase ambiguities in the M-ary PSK modulation of trellis coded data. A trellis encoder uses a differential encoder and a convolutional encoder, along with multiplexed differential encoders, to generate from sets of input data bits corresponding phase point values f

대표청구항 ▼

An apparatus for trellis coding of user data as phase point data for M-ary modulation and transmission upon a communication channel, comprising: first encoder means for receiving a first data bit group from each set of input user data bits in a sequence of input user data bit sets, encoding each fir

이 특허를 인용한 특허 (117)

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