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. 19, 1993
Filed:
Aug. 21, 1991
Michel Mouret, Jarry, FR;
SGS-Thomson Microelectronics S.A., Gentilly, FR;
Abstract
An N-bit interpolation analog/digital circuit comprises a first stage of p comparators (C.sub.1. . . C.sub.p). The outputs of the comparators are combined in a plurality of groups, which are connected so that the combined output (S.sub.1a, S.sub.1b) of each group has the shape of a signal periodically varying between high and low levels. The output voltages of each group are compared close to their zero crossings in second stages (I.sub.1. . . I.sub.r) of q+1 comparators each (p[q+1]=2.sup.N). Each comparator of the first stage is a high linearity comparator comprising two legs each comprising a first and a second transistor (T.sub.101, T.sub.102 ; T.sub.103, T.sub.104). The base of the second transistor of each leg is connected at the junction node of the transistors of the other leg through a voltage shifting means (E.sub.1, E.sub.2), and the emitters of the second transistors of each leg are interconnected through a resistor (RES).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile