Invention Grant
- Patent Title: Loudspeaker with array of electrostatic card stack drivers
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Application No.: US17052481Application Date: 2019-05-02
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Publication No.: US11595751B2Publication Date: 2023-02-28
- Inventor: Joseph F. Pinkerton , David A. Badger , William Martin Lackowski , James A. Andrews
- Applicant: CLEAN ENERGY LABS, LLC
- Applicant Address: US TX Austin
- Assignee: CLEAN ENERGY LABS, LLC
- Current Assignee: CLEAN ENERGY LABS, LLC
- Current Assignee Address: US TX Austin
- Agency: Dickinson Wright PLLC
- Agent Ross Spencer Garsson
- International Application: PCT/US2019/030438 WO 20190502
- International Announcement: WO2019/213422 WO 20191107
- Main IPC: H04R3/00
- IPC: H04R3/00 ; H04R1/26 ; H04R1/22 ; H04R1/40 ; H04R19/02 ; H04R1/28

Abstract:
Dipole audio speakers, and more particularly, voice controlled dipole audio speakers having at least one microphone located substantially along the null sound plane of the dipole audio speaker. An improved loudspeaker system that produces an improved audio quality for stereophonic sound. The improved loudspeaker utilizes conventional electro-dynamic drivers in a sealed chamber that produce sound primarily in the 20-300 Hz band coupled with electrostatic card stack drivers placed outside the sealed chamber that cover the remaining 98% of the audio frequency spectrum (300 Hz to 20 kHz). The improved loudspeaker system can also include multiple card stack drivers that are placed at angles with respect to each other to maximize audio fidelity.
Public/Granted literature
- US20210250680A1 LOUDSPEAKER SYSTEM AND METHOD OF USE THEREOF Public/Granted day:2021-08-12
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