Multiplex communications – Channel assignment techniques – Carrier sense multiple access
Reexamination Certificate
2006-03-14
2006-03-14
Ngo, Ricky (Department: 2663)
Multiplex communications
Channel assignment techniques
Carrier sense multiple access
C370S462000, C340S870030
Reexamination Certificate
active
07012927
ABSTRACT:
A system has a plurality of nodes communicating with each other on a serial data path using dominant and recessive signal levels. A dominant signal level sent on the data path by any of the nodes creates a dominant signal level on the data path irrespective of the number of recessive signal levels sent by other nodes. The dominant and recessive signal levels form a series of bits organized into messages by the nodes. Each sending node senses the signal level on the data path bit by bit, and if different from that sent by that sending node, halts further sending of signal levels by that sending node. A priority value generator in each node provides a priority signal encoding a value whose magnitude indicates a relative priority. A message priority module in each node receives the priority signal, and stores the priority value in predetermined leading bits of the message to be sent.
REFERENCES:
patent: 4745596 (1988-05-01), Sato
patent: 4785453 (1988-11-01), Chandran et al.
patent: 5001642 (1991-03-01), Botzenhardt et al.
patent: 5105441 (1992-04-01), Borst et al.
patent: 5111460 (1992-05-01), Botzenhardt et al.
patent: 5175821 (1992-12-01), Dutcher et al.
patent: 5293571 (1994-03-01), Matsuda et al.
patent: 5303348 (1994-04-01), Botzenhardt et al.
patent: 5398243 (1995-03-01), Aguilhon et al.
patent: 5499247 (1996-03-01), Matsuda et al.
patent: 5617545 (1997-04-01), Ogata et al.
patent: 5805614 (1998-09-01), Norris
patent: 5812556 (1998-09-01), Schmidt
patent: 5854454 (1998-12-01), Upender et al.
patent: 5856976 (1999-01-01), Hirano
patent: 6167057 (2000-12-01), Kishigami et al.
patent: 6434112 (2002-08-01), Kwon
Jean-Lien C Wu et al.: Practical Aspects and Experiences. A New Bus Contention Scheme in s
et with Dynamic Priority; Parallel Computing, Elsevier Publishers, Amsterdam, NL. vol. 20, No. 7, pp. 1045-1046, Jul. 7, 1994.
Hank P et al.; SJA100 Stand-Alone CAN Controller; Phillips, Applicatio note; Section 2., 4.2, 5.2-5.4.
Ansems Gregory M.
Honeywell International , Inc.
Juntima Nittaya
Ngo Ricky
LandOfFree
High level message priority assignment by a plurality 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 High level message priority assignment by a plurality of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High level message priority assignment by a plurality of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3558900