The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 1999
Filed:
Dec. 19, 1996
Alexander G Dean, Pittsburgh, PA (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
A communication interface 122 for a network having a plurality of nodes 100-108 and a communication link 124,126 (120) connected between predetermined ones of the nodes 100-108 which propagates bus data, includes a first shared communication circuit 128, to be connected in series with the link 124,126, which receives the bus data and passes shared data along the link 124,126, a second shared communication circuit 136,142, connected to one port 129 of the circuit 128, which receives the bus data from the link 124,126 and passes the shared data, and which receives the shared data and couples the shared data onto the link 126, a first unshared communication circuit 144,148, connected to the port 129 of the circuit 128, which receives the bus data from the link 126 and passes the unshared data, and which receives the shared data and couples the unshared data onto the link 126, a second unshared communication circuit 130,134, connected to another port 127 of the circuit 128, which receives the bus data from the link 124 and passes the unshared data, and which provides unshared data onto the link 124, and the first shared communication circuit 136 not passing the unshared data.