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:
Apr. 21, 1998
Filed:
Jun. 18, 1996
Norio Shoji, Kanagawa, JP;
Katsuyuki Yonezawa, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
A filter circuit and an electronic apparatus using the filter circuit in which the manufacturing process can be simplified and the circuit is reduced in its size, and the minimum operating voltage is increasingly lowered and dynamic range is expanded comparing to that of prior art. A capacitor C taking out a signal component in a predetermined band from both ends is connected in series to a first diode, which is constantly in a conducting state by a second current source for diode, of a first differential pair to which the input signal of one differential input signal is supplied, and a second diode, which is constantly in a conducting state by a fourth current source for diode, of a second differential pair to which the other input signal is supplied.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile