Patent · US Active

Low-power active bone conduction devices

US11627422B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

Cochlear Limited · AU

Inventors

Werner Meskens · Mechelen, BE
Wim Bervoets · Chatswood, AU
Carl Van Himbeeck · Zottegem, BE

Key dates

Filing date	Nov 15, 2021
Grant date	Apr 11, 2023
Priority date	—
Expiry date	Nov 15, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2460/13
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Presented herein are low-power active bone conduction devices that comprise an actuator that is subcutaneously implanted within a recipient so as to deliver mechanical output forces to hard tissue of the recipient. The low-power active bone conduction devices include an energy recovery circuit configured to extract non-used energy from the actuator and to store the non-used energy for subsequent use by the actuator. The low-power active bone conduction devices may also include a multi-bit sigma-delta converter that operates in accordance with a scaled sigma-delta quantization threshold value to convert received signals representative of sound into actuator drive signals.

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