Patent · US Active

Headphone unit

US10178465B2 · kind B2 · utility

2Cited by

2References

8Claims

0Family size

Assignee

Sennheiser electronic GmbH & Co. KG · DE

Inventors

Axel Grell · Großburgwedel, DE
Manfred Hibbing · Großburgwedel, DE

Key dates

Filing date	Dec 21, 2016
Grant date	Jan 8, 2019
Priority date	—
Expiry date	Dec 21, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04R19/02
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A headphone unit comprising a headphone, a headphone pre-amplifier for pre-amplification of an audio signal to be reproduced, and a cable between the headphone pre-amplifier and the headphone. The headphone has two symmetrically designed electrostatic transducers in the push-pull mode of operation. The pre-amplifier is adapted to output an audio signal to be reproduced by way of a first amplifier stage as a voltage-amplified audio signal at an output. The headphone has second amplifier stages which are in the form of high-voltage amplifier stages which are supplied by way of the cable with a pre-amplified audio signal to be reproduced and a high-voltage supply.

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