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:
Oct. 08, 1996
Filed:
Jun. 10, 1994
Applicant:
Inventors:
Robert E Snyder, Andover, MA (US);
Bruce C Levens, Natick, MA (US);
Assignee:
Steinbrecher Corporation, Burlington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
341131 ; 341155 ;
Abstract
An analog signal is converted to a digital signal by two analog-to-digital converters. The first converter digitizes the analog signal to produce a first series of samples of the signal. The second converter digitizes the analog signal after it has been shifted in phase by 180 degrees to produce a second series of samples. A digital adder then subtracts the second series of samples from the first series to produce the digital signal.