Communication and/or control apparatus and method for detecting locking states in same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 5, 2010
Grant Date -
Jan 24, 2008
app pub date -
Feb 11, 2005
filing date -
Apr 29, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for detecting locking states in communication and/or control appliances (SG.sub.i) dispersedly networked together by a data bus (2) compares a message currently transmitted by a communication and/or control appliance (SG.sub.i) to a previously transmitted message. It determines and the absence of a locking state of the communication and/or control appliance (SG.sub.i) if the messages are different. A message counter is encoded in the transmitted message if the messages are identical and decodes the message counter in a communication and/or control appliance (SG.sub.i) receiving the message. It determines the absence of a locking state at the communication and/control appliance (SG.sub.i) if the value of the message counter has changed relative to a previous value of the message counter of a previously transmitted message and determines a locking state of the communication and/or control appliance (SG.sub.i) if the message counter value has not changed after a specific waiting time (t.sub.w).
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully