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. 20, 2016
Filed:
Oct. 26, 2015
Mediatek Inc., Hsin-Chu, TW;
Khurram Muhammad, Winston-Salem, NC (US);
Chih-Ming Hung, Mckinney, TX (US);
Mediatek, Inc., Hsin-Chu, TW;
Abstract
A transmitter circuit includes a frequency generation circuit configured to generate a local oscillator signal and a digital modulator configured to: receive data to be transmitted; quadrature modulate the received data to at least a first, Q, modulated value and a second, I, modulated value; examine the quadrature modulated data to determine if the first, Q, modulated value exceeds a limit, and in response thereto selectively modify the quadrature modulated values to a first modified, Q', modulated value and a second modified, I′, modulated value thereby bringing only a value of the first modified, Q′, modulated value to within the limit. A local oscillator phase is selected in order to map the first modified, Q′, modulated value and second modified, I′, modulated value to desired quadrature values. A digital power amplifier, DPA, coupled to the digital quadrature modulator, is configured to amplify the quadrature modified modulated data.