Electrical computers and digital data processing systems: input/ – Input/output data processing – Concurrent input/output processing and data transfer
Reexamination Certificate
2011-04-05
2011-04-05
Dang, Khanh (Department: 2111)
Electrical computers and digital data processing systems: input/
Input/output data processing
Concurrent input/output processing and data transfer
C710S106000, C710S305000
Reexamination Certificate
active
07921236
ABSTRACT:
A method and apparatus for providing bidirectional signaling in a bus topology is provided. The bus topology allows more than two electrical circuits or devices to be coupled together along one or more common electrical conductors. For each device on the bus, a transmit buffer is preferably provided for every other device on the bus with which it will communicate. One or more logic circuits, for example, a scheduler, is provided to coordinate exchange transactions between pairs of devices. Time delays are preferably provided between exchange transactions of different device pairs so as to prevent interference. Coherency checking is preferably implemented to avoid discrepancies introduced by information being held in a buffer pending an exchange transaction.
REFERENCES:
patent: 4309755 (1982-01-01), Lanty
patent: 5003463 (1991-03-01), Coyle et al.
patent: 5420997 (1995-05-01), Browning et al.
patent: 5514983 (1996-05-01), Yoshino
patent: 5530814 (1996-06-01), Wong et al.
patent: 5604450 (1997-02-01), Borkar et al.
patent: 5742798 (1998-04-01), Goldrian
patent: 5802579 (1998-09-01), Crary
patent: 5818751 (1998-10-01), Ho et al.
patent: 5847998 (1998-12-01), Van Buskirk
patent: 5872471 (1999-02-01), Ishibashi et al.
patent: 6104663 (2000-08-01), Kablanian
patent: 6127849 (2000-10-01), Walker
patent: 6144604 (2000-11-01), Haller et al.
patent: 6301629 (2001-10-01), Sastri et al.
patent: 6377492 (2002-04-01), Rong et al.
patent: 6457078 (2002-09-01), Magro et al.
patent: 6493394 (2002-12-01), Tamura et al.
patent: 6516365 (2003-02-01), Horowitz et al.
patent: 6606672 (2003-08-01), Chien
patent: 6687780 (2004-02-01), Garlepp et al.
patent: 2000-035831 (2000-02-01), None
“Cache in Your Chips and Get a Bus”, Personal Technology Information, is cited for showing that the use of the term “bus conductor” is common.
Definition of the word “conductor” from Answer.com.
Dang Khanh
Hunton & Williams LLP
Rambus Inc.
LandOfFree
Method and apparatus for simultaneous bidirectional... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for simultaneous bidirectional..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for simultaneous bidirectional... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2674805