Pulse or digital communications – Systems using alternating or pulsating current
Patent
1996-06-14
1999-02-02
Tse, Young T.
Pulse or digital communications
Systems using alternating or pulsating current
375256, 704201, H04L 2700
Patent
active
058675302
ABSTRACT:
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.
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Bell, et al., Overview of Techniques for Mitigation of Fading and Shadowing in the Direct Broadcast Satellite Radio Environment, 1995, pp. 423-431.
TRW Inc.
Tse Young T.
Yatsko Michael S.
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