Data converter and a delay threshold comparator

Details Data converter and a delay threshold comparator Data converter and a delay threshold comparator

2005-03-31

2009-10-13

Bullock, Jr., Lewis A (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S203000

Reexamination Certificate

active

07603398

ABSTRACT:
For one disclosed embodiment, a converter converts 2N-bit data into an N-bit value indicating a number of bits in the data that have a predetermined logical value. The converter includes N comparators, each determining whether the number of bits in the data having the predetermined logical value exceeds a respective one of a plurality of reference values. The N-bit value is generated based on the outputs of the comparators. For another disclosed embodiment, a first delay element delays a signal based on a number of bits in a data value having a predetermined logical value, and a second delay element delays the signal based on a number of bits in a reference value having the predetermined logical value. A comparator then generates a bit value based on the delayed signals.

REFERENCES:
patent: 2003/0202438 (2003-10-01), Nomoto

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