Coded data generation or conversion – Digital code to digital code converters – Data rate conversion
Reexamination Certificate
2006-06-20
2006-06-20
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Digital code to digital code converters
Data rate conversion
C375S225000
Reexamination Certificate
active
07064686
ABSTRACT:
A data rate determination apparatus includes an edge detection and clock generation circuit for receiving an input bit stream. The edge detection and clock generation circuit generates a pulse for each edge detected in the input bit stream. The pulses are passed to a programmable re-triggerable monostable multivibrator circuit coupled to a binary counter, which counts how many pulses are received within a time period determined by the number of pulses received at a rate higher than a predetermined rate. The binary counter is coupled to a Gray code counter coupled to a processing unit. The processing unit uses different counts that are accumulated over different sampling periods with different predetermined rates to establish statistical data, which can be compared to known data for different data rate standards or formats.
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patent: 6680970 (2004-01-01), Mejia
patent: 6717447 (2004-04-01), Le et al.
patent: 2003/0223522 (2003-12-01), Fukushima
patent: 2005/0201491 (2005-09-01), Wei
patent: WO 03/010935 (2003-02-01), None
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