Data processing: measuring – calibrating – or testing – Measurement system – Time duration or rate
Reexamination Certificate
2006-09-26
2006-09-26
Nghiem, Michael (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Time duration or rate
C324S076480, C341S166000, C368S118000, C377S020000, C377S049000
Reexamination Certificate
active
07113886
ABSTRACT:
A circuit and related method for distributing events in an event stream (i.e., an electronic signal having a plurality of rising edge transitions and falling edge transitions). The circuit distributes the events in a primary event stream across multiple secondary event streams in such a way that the event rate in each of the secondary event streams is lower than the event rate in the primary event stream, but the relative timing of the events in the primary event stream is maintained in each of the secondary event streams. The secondary event streams can then be provided to respective timestamp circuits, which record the times at which events occur in the secondary event streams. Since the relative timing of the events in the primary event stream is maintained in each of the secondary event streams, the multiple timestamp circuits collectively record the times at which events occur in the primary event stream. The circuit and related method can be used when debugging/testing semiconductor devices.
REFERENCES:
patent: 4731768 (1988-03-01), Easterday
patent: 4894823 (1990-01-01), Adelmann et al.
patent: 4996474 (1991-02-01), Tambe et al.
patent: 5485457 (1996-01-01), Aramaki
patent: 5642478 (1997-06-01), Chen et al.
patent: 5742188 (1998-04-01), Jiang et al.
patent: 5764524 (1998-06-01), Andersson et al.
patent: 5815634 (1998-09-01), Daum et al.
patent: 5886660 (1999-03-01), Loewenstein
patent: 5940467 (1999-08-01), Fransson
patent: 6434211 (2002-08-01), Lloyd et al.
patent: 2002/0133325 (2002-09-01), Hoare et al.
patent: 2003/0035502 (2003-02-01), Boerker
patent: 0 396 272 (1990-11-01), None
patent: 0 901 094 (1999-01-01), None
patent: 0891094 (1999-01-01), None
U.S. Appl. No. 09/643,576, filed Aug. 22, 2000, West.
B. Hodlsworth: “chapters 2.10.2.11, 5.6-5.9.6, 8-1-8.10” Digital Logic Design Third Edition XP-226117.
Credence Systems Corporation
Le John
Nghiem Michael
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