发明名称 Method and apparatus for accomodating signal blockage in satellite mobile radio systems
摘要 A communication system 10 for providing uninterrupted radio operation, including: a pre-transmitter system 12 comprising: (i) a first buffer 14 for storing a sequence of digital audio samples from an audio source 16, the first buffer 14 having a beginning 18, an end 20 and a length 22; (ii) storing means 24 for storing the audio samples in the first buffer 14 in shift register configuration format; and (iii) frame construction means 26 for constructing a data frame including a first audio sample from the end 20 of the first buffer 14 and a second audio sample from the beginning 18 of the first buffer 14; wherein the data frame can be transmitted and received. The communication system 10 further includes a post-receiver system 28 comprising: (i) a second buffer 30 having a beginning 32, an end 34 and a length 36 identical to the length 22 of the first buffer 14; (ii) storing means 38 for storing the second audio sample in the received data frame in the second buffer 30 in shift register configuration format; (iii) means 40 for determining if the data frame was properly received; and (iv) selection means 42 for selecting an audio sample for audio output, wherein the first audio sample in the data frame is selected if the data frame was properly received, otherwise, an audio sample from the end 34 of the second buffer 30 is selected.
申请公布号 US5867530(A) 申请公布日期 1999.02.02
申请号 US19960665143 申请日期 1996.06.14
申请人 TRW INC. 发明人 JENKIN, KEITH R.
分类号 H04B7/185;H04H20/57;H04H40/90;(IPC1-7):H04L27/00 主分类号 H04B7/185
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