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.

Date of Patent:
Jun. 21, 2022

Filed:

Jun. 30, 2020
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Oliver Georg Dorn, Erlangen, DE;

Joonhoi Hur, Sunnyvale, CA (US);

Rastislav Vazny, Sunnyvale, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/50 (2006.01); H04B 1/00 (2006.01); H03H 11/34 (2006.01); H03F 3/24 (2006.01);
U.S. Cl.
CPC ...
H04B 1/50 (2013.01); H03F 3/245 (2013.01); H03H 11/342 (2013.01); H03H 11/344 (2013.01); H04B 1/0053 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01);
Abstract

An electrical balance duplexer has multiple impedance gradients and multiple impedance tuners. The electrical balance duplexer transmits an outgoing signal from a transmitter during a transmission mode when a first set of impedance gradients of the multiple impedance gradients is operating in a first impedance state and a first set of impedance tuners of the multiple impedance tuners is operating in a second state. The electrical balance duplexer isolates the outgoing signal from a receiver during the transmission mode when a second set of impedance gradients of the multiple impedance gradients and a second set of impedance tuners of the multiple impedance tuners are operating in the second impedance state.


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