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:
May. 28, 2013
Filed:
Apr. 15, 2010
Lizhong Zhu, Waterloo, CA;
George Soliman Mankaruse, Kitchener, CA;
Michael Stephen Corrigan, Waterloo, CA;
Perry Jarmuszewski, Waterloo, CA;
Oleksiy Kravets, Kitchener, CA;
Kent A. Nickerson, Waterloo, CA;
Nagula Tharma Sangary, Waterloo, CA;
Lizhong Zhu, Waterloo, CA;
George Soliman Mankaruse, Kitchener, CA;
Michael Stephen Corrigan, Waterloo, CA;
Perry Jarmuszewski, Waterloo, CA;
Oleksiy Kravets, Kitchener, CA;
Kent A. Nickerson, Waterloo, CA;
Nagula Tharma Sangary, Waterloo, CA;
Research In Motion Limited, Waterloo, Ontario, CA;
Abstract
A communications device may include an In-phase (I) circuit having an In-phase modulator and mixer circuit, and an I power amplifier circuit coupled thereto, the I circuit configured to modulate and amplify a digital baseband I signal to generate an amplified I signal, and a Quadrature (Q) circuit having a Q modulator and mixer circuit, and a Q power amplifier circuit coupled thereto, the Q circuit configured to modulate and amplify a digital baseband Q signal to generate an amplified Q signal separate from the amplified I signal. The communications device may include a processor configured, for example, to selectively switch the digital baseband signal and the digital baseband Q signal between the I and Q signal inputs to provide selective phase shifting for the digital baseband I and Q signals. For example, the controller may selectively phase shift the digital baseband I and Q signals, and control the I and Q power amplifier circuits to vary an amplitude of the amplified I and Q signals.