Data processing: measuring – calibrating – or testing – Measurement system – Time duration or rate
Reexamination Certificate
2005-08-09
2005-08-09
Nghiem, Michael (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Time duration or rate
C326S040000, C375S372000, C377S110000, C703S017000, C714S025000
Reexamination Certificate
active
06928387
ABSTRACT:
A circuit and method for distributing events in an event stream. A circuit for distributing events in a signal into a plurality of channels of circuitry capable of timestamping events is described. The circuit includes a first plurality of flip-flops arranged in a cascading configuration. The cascading configuration distributes a primary event stream into a first plurality of secondary event streams on each successive rising edge of the primary event stream. The circuit also includes a second plurality of flip-flops arranged in another cascading configuration for distributing the primary event stream. The primary event stream is distributed into a second plurality of secondary event streams on each successive falling edge of said primary event stream.
REFERENCES:
patent: 4741004 (1988-04-01), Kane
patent: 6362647 (2002-03-01), Nakaya
patent: 2002/0133325 (2002-09-01), Hoare et al.
patent: 2002/0188888 (2002-12-01), Rivoir
patent: 2003/0035502 (2003-02-01), Boerker
Credence Systems Corporation
Le John
Nghiem Michael
Wagner , Murabito & Hao LLP
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