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. 16, 1994
Filed:
Apr. 23, 1993
Applicant:
Inventor:
Robert A Curtis, Hudson, MA (US);
Assignee:
Digital Equipment Corporation, Maynard, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04J / ; H04L / ;
U.S. Cl.
CPC ...
370 131 ; 370 853 ; 370 859 ; 370 97 ; 375-3 ; 375-7 ; 178 73 ;
Abstract
A data communication system having a plurality of nodes is disclosed. A number of transceivers is provided, each transceiver being coupled to a respective one of the plurality of nodes, for data communication between the transceiver and its associated node. Each transceiver is also provided with a controlled current source. The data communication system is also equipped with a data bus for communication of a transmitted data signal between the transceivers. A current bus which is coupled to each transceiver receives a current signal from the controlled current source when a transceiver is placing the data onto the data bus.