Method and apparatus for evaluating and optimizing a...

Error detection/correction and fault detection/recovery – Pulse or data error handling – Transmission facility testing

Reexamination Certificate

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C714S739000, C714S030000, C714S744000, C714S716000, C714S712000, C714S704000, C714S738000, C714S745000, C714S721000, C714S724000, C714S728000, C714S733000, C714S734000, C714S735000, C375S221000, C375S249000, C370S282000

Reexamination Certificate

active

08069378

ABSTRACT:
A method and apparatus for evaluating and optimizing a signaling system is described. A pattern of test information is generated in a transmit circuit of the system and is transmitted to a receive circuit. A similar pattern of information is generated in the receive circuit and used as a reference. The receive circuit compares the patterns. Any differences between the patterns are observable. In one embodiment, a linear feedback shift register (LFSR) is implemented to produce patterns. An embodiment of the present disclosure may be practiced with various types of signaling systems, including those with single-ended signals and those with differential signals. An embodiment of the present disclosure may be applied to systems communicating a single bit of information on a single conductor at a given time and to systems communicating multiple bits of information on a single conductor simultaneously.

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