Patent · US Active

Electroacoustic filter comprising low-pass characteristics

US9667224B2 · kind B2 · utility

0Cited by

3References

19Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Holger Emrich · Munich, DE
Clemens Ruppel · Hersbruck, DE
Martin Störkle · Ebersberg, DE
Werner Ruile · Birkenfeld, DE
Thomas Finteis · Munich, DE
Tilo Gärtner · Munich, DE
Ingo Bleyl · Munich, DE
Markus Mayer · Taufkirchen, DE

Key dates

Filing date	Sep 27, 2013
Grant date	May 30, 2017
Priority date	—
Expiry date	Dec 20, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH03H9/14558
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An electroacoustic filter has improved low-pass characteristics. The filter includes a first electroacoustic converter, an electroacoustic element and a grid structure between the converter and the element. The grid structure is acoustically active in one frequency range that lies above the acoustically active frequency range of the first electroacoustic converter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.