High speed serializer-deserializer

Details High speed serializer-deserializer High speed serializer-deserializer

2007-05-22

2007-05-22

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

Parallel to serial

C341S059000, C341S100000

Reexamination Certificate

active

11052926

ABSTRACT:
A high speed serializer-deserializer (SerDes) that passes significantly more data through a channel for a given analog bandwidth and signal-to-noise ratio. This SerDes technique involves converting a plurality of bits to be transferred to positions of edges of a waveform that is transmitted over at least one transmission wire from a source to a destination. The plurality of bits are converted to edges in order to position edges such that more than k inter-edge spacings are possible over a range of spacings between T and kT, where k is a real number greater than 1 and T is the minimum spacing between consecutive edges. An edge position translation scheme that maps patterns in a stream of input bits to a corresponding spacing between a rising edge and a falling edge of the waveform, or between a falling edge and a rising edge of the waveform. The bits are recovered at the destination by detecting the edges in the received waveform at the destination and driving a stream of binary numbers representing time intervals between detected consecutive edges (inter-edge spacings). The stream of binary numbers is decoded according to the edge position translation scheme to recover corresponding bits.

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