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:
Jan. 06, 2004
Filed:
Nov. 09, 2001
Alex E. Henderson, Hillsborough, CA (US);
Walter E. Croft, San Mateo, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A low power wired OR circuit of the present invention comprises a plurality of logic blocks for pulling a wired OR signal line low in response to certain conditions, a differential pair of lines, such as the wired OR signal line and a reference signal line, and a sensing device coupled to the reference signal line and the wired OR signal line to receive the wired OR signal and the reference signal respectively and to detect a difference between the two signals. Having a differential pair of lines is advantageous because it maintains noise immunity for small voltage swings on the wired OR signal line, thereby reducing power dissipation in the wired OR circuit. A common current source coupled to each logic block through a common return path allows the low power wired OR circuit to control a discharge rate at which the wired OR line discharges.