US 2015/0318824 A1 · Variable Duty-Cycle Multi-Standard Mixer

Abstract

An adjustable mixer is disclosed that is capable of operating in different modes in order to satisfy the mixing requirement of multiple radio access technologies (RATs). The adjustable mixer includes a LO signal generating portion and a mixing portion. Depending on the mixing requirements of the RAT, the adjustable mixer can operate in any one of multiple modes, each mode having a specific configuration for the LO signal generating portion and the mixing portion. The LO signal generating portion generates a LO signal having a particular duty cycle, depending on the selected mode, for use by the mixing portion. The mixing portion has an adjustable circuit configuration that can be dynamically reconfigured based on the selected mode, and which allows the mixing portion to successfully mix received signals using the corresponding LO signals generated by the LO signal generating portion.

Claims20

Dependent claims

An adjustable mixer module setting apparatus, comprising:

an adjustable mixer module configured to mix a received signal in a first mixing mode or a second mixing mode;
and
a testing module configured to test a mixed signal output by the adjustable mixer module and to set the adjustable mixer module to operate in either the first mixing mode or the second mixing mode based on a result of the test.

Dependencies are inferred from the claim text.

Facts

Application

14/798,086Filed 13 Jul 2015

Priority

GR 2012010016720 Mar 2012

Published

5 Nov 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H03D 7/1441
With transistors: using field-effect transistors
H03D 7/1458
With transistors: double balanced arrangements, i.e. where both input signals are differential
H03D 7/1466
With transistors: passive mixer arrangements
H03D 7/165
Multiple-frequency-changing: at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature

Family

Application61/556,094Us provisional application · filed 4 Nov 2011

Application13/435,763Division · filed 30 Mar 2012

Application14/798,086Division

US 2013/0115907 A1Published application

US 9,093,956 B2Related patent

US 9,768,727 B2Related patent

US 2015/0318824 A1This patent

From the US filing history. Foreign family members aren’t listed.

Variable Duty-Cycle Multi-Standard Mixer

Life of this patent

Variable Duty-Cycle Multi-Standard Mixer

Life of this patent

Abstract

Claims20