US 12,615,067 B2Granted

Reception apparatus

AssigneeSony Semiconductor Solutions Corporation

InventorsNobuhisa Ozawa, Yoshihisa Takaike

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Abstract

Provided is a reception apparatus that includes an in-phase-side mixer that mixes a high-frequency component and an in-phase-side local signal, and outputs the mixed signal as an in-phase-side mixed signal, a quadrature-side mixer that mixes the high-frequency component and a quadrature-side local signal orthogonal to the in-phase-side local signal, and outputs the mixed signal as a quadrature-side mixed signal, an error detection signal generation unit that generates four-phase detection signals having same frequencies as frequencies of the in-phase-side local signal and quadrature-side local signal, and each having a different phase, and a signal processing unit that generates a gain difference between an in-phase-side signal according to the in-phase-side mixed signal and a quadrature-side signal according to the quadrature-side mixed signal, on the basis of respective output signals of the in-phase-side mixer and quadrature-side mixer in a case where each of the four-phase detection signals is the high-frequency component.

Claims16

Dependent claims

A reception apparatus, comprising:

an in-phase-side mixer configured to:
mix a specific high-frequency component and an in-phase-side local signal to generate an in-phase-side mixed signal;
and
output the in-phase-side mixed signal;
a quadrature-side mixer configured to:
mix the specific high-frequency component and a quadrature-side local signal to generate a quadrature-side mixed signal, wherein
the quadrature-side local signal is orthogonal to the in-phase-side local signal;
and
output the quadrature-side mixed signal;
an error detection signal generation unit configured to generate four-phase detection signals having same frequencies as frequencies of the in-phase-side local signal and the quadrature-side local signal, wherein
each of the four-phase detection signals having a different phase;
and
a signal processing unit configured to generate a gain difference between an in-phase-side signal and a quadrature-side signal, based on respective output signals of the in-phase-side mixer and quadrature-side mixer in a case where the each of the four-phase detection signals is the specific high-frequency component.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/253,690Filed 17 Nov 2021
Priority: JP 2020-19893130 Nov 2020
Published: US 2024/0014839 A111 Jan 2024
Granted: 28 Apr 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04B 1/12
Means associated with receiver for limiting or suppressing noise or interference: neutralising, balancing, or compensation arrangements
H03D 7/12
Transference of modulation from one carrier to another, e.g. frequency-changing: by means of semiconductor devices having more than two electrodes
H03D 7/1441
With transistors: using field-effect transistors
H03D 7/1466
With transistors: passive mixer arrangements