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:
Sep. 02, 1980
Filed:
Aug. 17, 1978
Kenneth I Ray, Mesa, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
The bus terminating circuit isolates itself from a bus in response to the magnitude of a power supply voltage decreasing below a predetermined threshold level. The bus terminating circuit includes a bus termination voltage divider network having one terminal coupled through a threshold sensing device to one of the pair of power supply terminals, another terminal coupled to the bus and a further terminal coupled through a transistor to the other of the pair of power supply terminals. Another threshold sensing circuit is coupled between one of the pair of power supply terminals and the control electrode of the transistor. The threshold sensing circuits are responsive to the magnitude of the power supply voltage falling below the predetermined threshold level to render devices of the threshold sensing circuits non-conductive and thereby electrically isolate the bus termination network from the bus.