Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2007-03-06
2007-03-06
Jung, Min (Department: 2663)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S257000, C370S468000
Reexamination Certificate
active
09650351
ABSTRACT:
To minimize the bandwidth (or overhead) of isochronous data transfer in the IEEE 1394 standard and to minimize the signal-less periods (gaps) in asynchronous data transfer, and thereby achieve effective utilization of system resources, the IEEE 1394 interface of a transmitting node acquires the node ID of the root node in the system. Since the actual number of hops is equal to the root node_ID, the arbitration time and the propagation time are calculated based upon the actual number of hops, and from which the bandwidth for isochronous data transfer is determined. Hence, the bandwidth is allocated by the isochronous resource manager node, using the root node_ID to represent the actual number of hops. Gaps for asynchronous data transfer likewise are determined as a function of the actual number of hops that are present in the system, rather than the theoretical maximum number of hops. Thus, the size of the gaps may be reduced.
REFERENCES:
patent: 5687319 (1997-11-01), Cook et al.
patent: 6212171 (2001-04-01), LaFollette et al.
patent: 6466549 (2002-10-01), Hattig
patent: 6529951 (2003-03-01), Okuyama et al.
patent: 6556543 (2003-04-01), Park et al.
patent: WO 99 67760 (1999-12-01), None
IEEE Standards Board: “IEEE Standard for High Performance Serial Bus” IEEE Computer Society IEEE STD 1394-1995, 'Online! 1996, pp. 293-298, XP002274354 NY, USA Retrieved from the Internet: <URL:www.ieeeexplore.ieee.org/xpl/standards.jsp>'retrieved on Mar. 25, 2004 !.
Sato Makoto
Sato Naoyuki
Frommer William S.
Frommer & Lawrence & Haug LLP
Jung Min
Smid Dennis M.
LandOfFree
Information communication method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Information communication method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information communication method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3769845