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:
Oct. 05, 2004
Filed:
Oct. 16, 2000
Thai M. Nguyen, San Jose, CA (US);
Pengfei Zhang, Fremont, CA (US);
RF Micro Devices, Inc., Greensboro, NC (US);
Abstract
A wireless receiver apparatus including a voltage controller oscillator and mixer. The voltage controlled oscillator generates a first signal having a first frequency, and a second signal having the first frequency. The first and second signals are in quadrature. The mixer has a first input port for receiving the first signal, and a second input port for receiving the second signal, a third input port for receiving a third signal at a frequency centered about a third frequency. The mixer generates a fourth signal having a frequency centered about a fourth frequency which is equal to the third frequency less twice the first frequency.