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. 13, 1979
Filed:
Jul. 08, 1977
Lamar T Baker, Manhattan Beach, CA (US);
George K Tu, Rolling Hills, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
For use in a microprocessor on a single semiconductor chip, circuitry responsive to a timing signal and a data signal for discharging a precharged data line to correspond to the data to be transmitted on the data line. First and second enhancement-type field effect devices are connected in series with the drain of the first device being connected to the data line and the source of the second device being connected to a source voltage. The gate of one of the field effect devices provides an input for the timing signal. The gate of the remaining field effect device provides an input for the data signal. A depletion-type field effect device has its source and gate coupled to the series connection point and its drain connected to a drain voltage source. The depletion-type field effect device prevents a charge redistribution from the data line to the series field effect devices when these devices are not discharging the line.