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Digital Signal Reconstruction

IP.com Disclosure Number: IPCOM000039709D
Original Publication Date: 1987-Jul-01
Included in the Prior Art Database: 2005-Feb-01

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Related People

Galand, C Platel, G Vermot-Gauchy, R [+details]


In a voice data packet switching (VDPS) errors may occur during the transmission of a digital signal. As a result, some blocks of samples may get lost. Assume that: it is impossible to retransmit them due to the real-time constraint (for example, with speech signals). ere is a strong probability that the digital signal is a sine wave, most of the time the transmission errors will not exceed 40 ms, and the number of lost samples will be less than 10 (assuming a sampling rate of 4 ms), and due to the jitter on the delay of transmission (queues in communication lines), the received samples are enqueued in a retention buffer so as to be synthesized at a constant 20 ms block period.