Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus access regulation
Reexamination Certificate
2011-08-16
2011-08-16
Stiglic, Ryan M (Department: 2111)
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus access regulation
C710S306000, C709S251000
Reexamination Certificate
active
08001306
ABSTRACT:
An interface unit is provided for a communication system comprising a master unit and a plurality of slave units serially connecting the master unit via a double ring structure comprising a first communication path and a second communication path. The interface unit comprises a first switching unit, which is configured to output information signals received by the master unit as a first information signal to the first communication path and as a second information signal to the second communication path; and a second switching unit, which is configured to forward the first information signal circulating on the first communication path and second information signal circulating on the second communication path to the master unit.
REFERENCES:
patent: 4648088 (1987-03-01), Cagle et al.
patent: 4745597 (1988-05-01), Morgan et al.
patent: 6005869 (1999-12-01), Sakai et al.
patent: 7065039 (2006-06-01), Ying
patent: 7085496 (2006-08-01), Kinoshita et al.
patent: 7283740 (2007-10-01), Kinoshita et al.
patent: 2004/0008719 (2004-01-01), Ying
patent: 2004/0008720 (2004-01-01), Wang et al.
patent: 2004/0008721 (2004-01-01), Ying et al.
patent: 2004/0177203 (2004-09-01), Goodnow et al.
patent: 2004/0208575 (2004-10-01), Kinoshita et al.
patent: 2004/0208576 (2004-10-01), Kinoshita et al.
patent: 2005/0088982 (2005-04-01), Ying
patent: 2005/0129037 (2005-06-01), Zumsteg et al.
patent: 2006/0092858 (2006-05-01), Kynast et al.
patent: 2006/0114943 (2006-06-01), Kynast et al.
patent: 2006/0136604 (2006-06-01), Schultze et al.
patent: 2007/0143510 (2007-06-01), Schultze
patent: 2007/0183319 (2007-08-01), Rug et al.
patent: 2007/0192449 (2007-08-01), Schultze et al.
patent: 2007/0274208 (2007-11-01), Harter et al.
patent: 2008/0170495 (2008-07-01), Monse et al.
patent: 2 207 326 (1989-01-01), None
patent: 89/11187 (1989-11-01), None
patent: WO 2004/084451 (2004-09-01), None
International Search Report for PCT/EP2007/003591 dated Sep. 6, 2007.
Examination report for German application No. 10 2006 018 884.5-31, dated Dec. 13, 2006.
Beckhoff Hans
Janssen Dirk
Beckhoff Automation GmbH
Dorsey & Whitney LLP
Stiglic Ryan M
LandOfFree
Interface unit and communication system having a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Interface unit and communication system having a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interface unit and communication system having a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2738281