Electrical computers and digital processing systems: support – Synchronization of clock or timing signals – data – or pulses
Reexamination Certificate
2006-12-05
2006-12-05
Lee, Thomas (Department: 2115)
Electrical computers and digital processing systems: support
Synchronization of clock or timing signals, data, or pulses
C713S401000, C370S350000
Reexamination Certificate
active
07146516
ABSTRACT:
Schemes for synchronizing networked stations using data messages and hardware pulses are described herein. In one embodiment, a method to provide time data from a first processor to at least one second processor may include transmitting a data message from the first processor to the at least one second processor, in which the data message associates a hardware pulse with a future time, and transmitting a hardware pulse from the first processor to the at least one second processor at the future time.
REFERENCES:
patent: 5748941 (1998-05-01), Rabjohns
patent: 6678510 (2004-01-01), Syrjarinne et al.
patent: 6683867 (2004-01-01), DeWulf
patent: 6693592 (2004-02-01), Dowdle et al.
patent: 4427007 (1996-02-01), None
Deconto-Thomas Marie
Dhupar Krishan
Foskett Alan M.
Gale Alan
Foley & Hoag LLP
Invensys Systems Inc.
Lee Thomas
Suryawanshi Suresh K
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