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:
Sep. 13, 1983
Filed:
May. 07, 1981
Errol R Williams, Jr, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A transducer is described which has a rotor with at least one track of spaced conductive segments and a stator having at least one track of spaced conductive segments respectively facing and spaced from the track on the stator. Apparatus for rotating the rotor with respect to the stator is included whereby the track on the rotor rotates with respect to the track on the stator. An electrical signal source provides an alternate electrical signal to the track of conductive segments on either the rotor or the stator, and means are connected to the other track of conductive segments for sensing the capacitive effect in said other track by said electrical signal. At least one of the tracks has a plurality of non-rectangular segments, e.g., triangular segments of shapes selected to produce transducer output waveforms of varied shapes.