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:
Jul. 05, 1988
Filed:
Jan. 16, 1987
Applicant:
Inventor:
Michael R Ferland, Nashua, NH (US);
Assignee:
Teradyne, Inc., Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330252 ; 307243 ; 328154 ; 330295 ; 330307 ;
Abstract
A differential input selector for selectively connecting one of a plurality of differential inputs to a differential output, the selector including a plurality of pairs of differential input lines, a differential output bus, and a separately powerable differential amplifier connected to each pair of input lines, the amplifier being directly connected to the differential output bus, the amplifier being powered on and off to selectively connect the pair of input lines to the output bus.