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:
Mar. 26, 2002
Filed:
Sep. 28, 1998
Hans-Ove Frimodig, Göteborg, SE;
Mecel AB, , SE;
Abstract
A method and arrangement for combined data- and power distribution between nodes (MA, SL, SL ) in distributed data processing systems having a common communication bus ( , CAN /CAN ) in which the communication bus includes at least one wire or differentiated dual wires transmitting digital information serially in form of dominant data bits at a first signal level (U /U V/ ) and recessive data bits at a second lower signal level (U , V ) in a sequential order dependent on the content of the data being transmitted. Nodes (SL) having a low power consumption obtain power supply through dominant bits being transmitted on the bus ( ), which dominant bits charge a capacitance ( ) in the low effect nodes (SL). Nodes (MA) having a higher power consumption obtain power supply from a voltage source (V ) separated from the bus. At least one node (MA) of the high effect nodes includes an amplification unit ( ) which will be activated automatically in order to amplify the potential of dominant bits being transmitted by a low effect node.