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:
Jun. 10, 2003
Filed:
Jul. 18, 2001
Arun Jayaraman, San Jose, CA (US);
Cary L. Delano, Los Altos, CA (US);
Tripath Technology, Inc., Santa Clara, CA (US);
Abstract
A bandpass amplifier for use in a communication system is described. The amplifier includes first and second first-order filters, first and second multipliers, a quantizer, and a driver. In one embodiment, the first and second first-order filters are coupled in series. The first multiplier multiplies a signal from the first first-order filter by a coefficient k1, and the second multiplier multiplies a signal from the second first-order filter by a coefficient k2. The quantizer quantizes a summation of the signals from the first and second multipliers into one of two values, thereby generating a quantized signal. The driver amplifies the quantized signal, and generating an output signal. At least one of the coefficients k1 and k2 is adjusted based on a level of the output signal.