Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2007-01-02
2007-01-02
Patel, Ajit (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S389000, C370S474000
Reexamination Certificate
active
10098509
ABSTRACT:
In a synchronization system adopted in a synchronous-multisystem control apparatus comprising a plurality of systems operating synchronously with each other at a fixed control period, the synchronous-multisystem control apparatus can be operated in a single-system mode in the event of failures occurring simultaneously in some of the systems.The synchronous-multisystem control apparatus employs a plurality of control circuits each provided for one of the systems. Any particular one of the control circuits comprises:a period-signal generating circuit for generating a period signal indicating a start point of a control period;a synchronization-reference selecting circuit for outputting a synchronization-reference signal by referring to period signals generated by the systems; anda control-period correcting circuit for correcting a control period of the particular system by forming a judgment on a synchronization shift of the period signal generated by the particular system from the synchronization-reference signal and keeping the control period as it is in case the synchronization-reference signal is not generated.
REFERENCES:
patent: 4093823 (1978-06-01), Chu
patent: 4142069 (1979-02-01), Stover
patent: 4270203 (1981-05-01), Collins et al.
patent: 4569042 (1986-02-01), Larson
patent: 4665534 (1987-05-01), Yoshida
patent: 4807259 (1989-02-01), Yamanaka et al.
patent: 4894846 (1990-01-01), Fine
patent: 5249184 (1993-09-01), Woest et al.
patent: 56-47120 (1981-04-01), None
patent: 62-57051 (1987-03-01), None
patent: 4-307633 (1992-10-01), None
patent: 5-160815 (1993-06-01), None
patent: 6-348524 (1994-12-01), None
Bando Akira
Hotta Takashi
Imaie Kazuhiro
Kido Mitsuyasu
Morita Yuichiro
Hitachi , Ltd.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Patel Ajit
LandOfFree
Synchronization system and synchronization method of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Synchronization system and synchronization method of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronization system and synchronization method of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3825247