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:
Nov. 09, 2004
Filed:
Jan. 19, 2001
Robert Allen Olah, Sunnyvale, CA (US);
William E. Moss, Sunnyvale, CA (US);
Fairchild Semiconductor Corporation, South Portland, ME (US);
Abstract
A switch for routing input signals from any of N input terminals to one or more of M output terminals includes a high-speed N×M crosspoint switch array providing the necessary signal paths. Each of a set of N input drivers buffers a separate one of the input signals into the crosspoint array and each of a set of M output drivers buffers an array output signal onto a separate one of the output terminals. The crosspoint switch array is horizontally and/or vertically segmented by input and output buffers to limit the amount of the array's capacitance that each input driver must charge and discharge when the input signals change state, thereby reducing signal path delay through the crosspoint array.