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:
Aug. 25, 2009
Filed:
Jan. 25, 2006
Edward T. Merlo, Marina del Rey, CA (US);
Kwang-hyun Baek, Thousand Oaks, CA (US);
Myung-jun Choe, Thousand Oaks, CA (US);
Edward T. Merlo, Marina del Rey, CA (US);
Kwang-Hyun Baek, Thousand Oaks, CA (US);
Myung-Jun Choe, Thousand Oaks, CA (US);
Teledyne Technologies Incorporated, Thousand Oaks, CA (US);
Abstract
A hardware-efficient mapping circuit uses a base decoder to decode the control signal (the most significant bits 'MSBs' of the phase angle) to provide a base value. A controller maps the control signal to a segment number to down select signed shift values from the control signal. Shifter blocks shift the data signal (the least significant bits 'LSBs' of the phase angle) by the respective shift values. The shifted data signals are added/subtracted from the base value to approximate a sinusoidal amplitude for the phase angle. Down selection by a controller allows the shifter blocks to be implemented with narrow band multiplexers, which conserves both chip space and power.