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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.:

US 9780755 B1

PDFFull Text
Date of Patent:
Oct. 03, 2017

Filed:

Sep. 16, 2016

On flex circuit desense filter for wireless communications

Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Kasra M. Omid-Zohoor, San Francisco, CA (US);

Marc Joseph Devincentis, Palo Alto, CA (US);

Paolo Sacchetto, Cupertino, CA (US);

Youchul Jeong, Cupertino, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Tremesha S Willis

Int. Cl.
CPC ...
H05K 1/00 (2006.01); H03H 1/00 (2006.01); H05K 9/00 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01); H03J 5/02 (2006.01); G09G 3/20 (2006.01); H04W 84/12 (2009.01); H04W 4/00 (2009.01);
U.S. Cl.
CPC ...
H03H 1/0007 (2013.01); H01F 27/2804 (2013.01); H01F 27/29 (2013.01); H03J 5/0209 (2013.01); H05K 9/0081 (2013.01); G09G 3/2092 (2013.01); H03H 2210/025 (2013.01); H04W 4/008 (2013.01); H04W 84/12 (2013.01);
Abstract

An apparatus for on flex desensing, includes a flex circuit including one or more DC traces, and at least one desense filter including a transformer having a primary winding coupled to at least one of the DC traces. Each desense filter includes one or more circuits coupled to a secondary winding of the transformer. Each of the circuits includes a variable capacitor connected in parallel with a resistor, and each desense filter is tunable to filter a desense frequency in a frequency band associated with one or more wireless communication protocols.

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