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. 17, 2013
Filed:
Aug. 06, 2010
Kwangseok Han, Cambridge, GB;
Marco Bruno, Cambridge, GB;
Stuart Aitken, Cambridge, GB;
Steve Jones, Milton Keynes, GB;
Simon Chang, Cambridge, GB;
James Digby Yarlet Collier, Suffolk, GB;
Kwangseok Han, Cambridge, GB;
Marco Bruno, Cambridge, GB;
Stuart Aitken, Cambridge, GB;
Steve Jones, Milton Keynes, GB;
Simon Chang, Cambridge, GB;
James Digby Yarlet Collier, Suffolk, GB;
Cambridge Silicon Radio Limited, Cambridge, GB;
Abstract
Apparatus for controlling the generation of a DC signal at the output of a mixer, so that the DC signal is predictable, enabling a static offset compensation voltage to offset the DC signal. The apparatus comprises a mixer configured to receive a first and a second input signal, the mixer being such as to generate a first DC signal at the output of the mixer when the first and second input signals have the same frequency and a first relative phase, a phase detector for determining the relative phase of the first and second signals, and a phase modifier configured to modify the phase of the second signal relative to the first signal in dependence on the determination of the relative phase between the first and second signals such that the resulting DC signal at the output of the mixer is the first DC signal.