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Signal processing apparatus and method

專利號(hào)
US11212702B2
公開日期
2021-12-28
申請(qǐng)人
SONY SEMICONDUCTOR SOLUTIONS CORPORATION(JP Kanagawa)
發(fā)明人
Seiji Kobayashi
IPC分類
H04W28/06; H04W28/04
技術(shù)領(lǐng)域
reception,signal,replica,unit,in,decoding,apparatus,step,processing,qd
地域: Kanagawa

摘要

The present technology relates to a signal processing apparatus and method which are able to suppress a reduction in reception sensitivity. A reception signal is compressed so as to have a predetermined signal level or lower, and transmission data transmitted from a transmitter side and included in the reception signal compressed so as to have the signal level or lower is decoded. For example, an approximate replica signal reproducing large amplitude changes of the reception signal is generated, and the approximate replica signal is subtracted from the reception signal to compress the reception signal so as to have the signal level or lower. The present disclosure is applicable to, for example, a signal processing apparatus, a reception apparatus, a transmission/reception apparatus, a communication apparatus, an information processing apparatus, an electronic device, a computer, a program, a storage medium, a system, and so on.

說明書

FIG. 9 is a flowchart for explaining an example flow of an interference suppression process.

FIG. 10 is a flowchart for explaining an example flow of an approximate replica generation process.

FIG. 11 is a flowchart for explaining an example flow of an arithmetic decoding process.

FIG. 12 is a flowchart for explaining an example flow of a frame start position detection process.

FIG. 13 is a diagram illustrating example plots of a cross-correlation value α(t).

FIG. 14 is a diagram of a cross-correlation value β(n).

FIG. 15 is a flowchart for explaining an example flow of a peak detection process.

FIG. 16 is a diagram for explaining how peak detection is performed.

FIG. 17 is a diagram for explaining how peak detection is performed.

FIG. 18 is a diagram for explaining how peak detection is performed.

FIG. 19 is a diagram for explaining how peak detection is performed.

FIG. 20 is a diagram for explaining how peak detection is performed.

FIG. 21 is a diagram for explaining how peak detection is performed.

FIG. 22 is a flowchart for explaining an example flow of a parameter calculation process.

權(quán)利要求

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