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. 09, 2017
Filed:
Jul. 15, 2014
Qualcomm Incorporated, San Diego, CA (US);
Mohammad Bagher Vahid Far, San Jose, CA (US);
Cheng-Han Wang, San Jose, CA (US);
Jesse Aaron Richmond, Oakland, CA (US);
Thinh Cat Nguyen, San Jose, CA (US);
Abbas Komijani, Mountain View, CA (US);
Yashar Rajavi, Mountain View, CA (US);
Alireza Khalili, Sunnyvale, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A method and apparatus for minimizing transmit signal interference is provided. The method includes the steps of: receiving a signal and amplifying the received signal. The received signal is then mixed with an intermediate frequency signal to obtain a baseband modulated signal. The baseband modulated signal is first filtered in an RC filter. The resulting signal is then divided by a preselected amount and the first divided portion is sent to a main path of a biquad filter, which produces a first stage biquad filtered signal. The second portion of the divided signal is sent to an auxiliary path of the biquad filter, and produces a second filtered signal. The first and second signals are then recombined and sent to the second stage of the biquad filter, where further filtering takes place.