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.:
Date of Patent:
Jul. 23, 2024
Filed:
Nov. 10, 2019
Amicro Semiconductor Co., Ltd., Guangdong, CN;
Lili Wang, Guangdong, CN;
AMICRO SEMICONDUCTOR CO., LTD., Guangdong, CN;
Abstract
An interpolation filtering system implemented by a digital circuit is provided, it includes an interpolation filtering operation controller, a cascaded drive module, an intermediate result cache Random Access Memory (RAM), and a filter coefficient storage Read Only Memory (ROM). The intermediate result cache RAM is configured to store externally input data of the interpolation filtering system and intermediate results output by the filter operation modules. The filter coefficient storage ROM is configured to store filter coefficients required for calculation by the filter operation modules. The interpolation filtering operation controller is configured to control, under the drive of counting beats output by the cascaded drive module, the master state machine to select data of the intermediate result cache TAM or externally directly input data to be sent to the cascaded filter operation modules for accumulation operation, and to select the filter coefficients of the filter coefficient storage ROM for multiplication operation.