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:
Dec. 09, 2003
Filed:
Aug. 19, 2002
Bruce G. Malcolm, Fishers, IN (US);
Trilithic, Inc., Indianapolis, IN (US);
Abstract
A 1-by-N switch matrix ( ) includes at least two ranks of switches ( - - - - - - - - - - - - - , and - - - - - - - - - - - - - - - - - , and - - - - ). Each switch has first, second and third terminals ( ). A first state of each switch couples the first terminal ( ) to the second terminal ( ) and a second state of each switch couples the first terminal ( ) to the third terminal ( ). The second ( ) and third ( ) terminals of each switch ( - - - - - - - - - - - - - - and - - ) of each rank (- -, - -, - -) above the next to lowest rank (- - or - -) are coupled to first terminals ( ) of respective switches ( - - - - and - - - - - - - - ) in the next lower rank (- -, - -, - -). The second ( ) and third ( ) terminals of each switch ( - - - - and - - - - - - - - ) in the next to lowest rank (- - or - -) are coupled to the second terminals ( ) of respective switches ( - - - - - - - - and - - - - ) in the lowest rank (- - or - -). The first terminals ( ) of the switches ( - - - - - - - - and - - - - ) in the lowest rank (- - or - -) are coupled to switch matrix utilization devices ( - - and - - ). The third terminals ( ) of the switches ( - - - - - - - - and - - - - ) in the lowest rank (- - or - -) are coupled to respective dummy loads.