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:
Oct. 30, 2018
Filed:
Oct. 17, 2017
Audio-technica Corporation, Tokyo, JP;
Kenzo Tsuihiji, Tokyo, JP;
AUDIO-TECHNICA CORPORATION, Tokyo, JP;
Abstract
A digitally driven headphone suppresses the occurrence of spurious radiation even when directly converting digital signals into sound waves. The digitally driven headphone includes a first sound emission unit, a second sound emission unit, and a signal line. The first sound emission unit includes at least one magnetic body into which the signal line is inserted, a signal processing circuit configured to process digital signals from a sound source, a circuit board on which the signal processing circuit is disposed, a driving part configured to drive the diaphragm in response to digital signals from the sound source, and a diaphragm configured to vibrate in response to driving of the driving part. The signal processing circuit has an output part disposed at an end portion of the circuit board. The signal line is inserted into the at least one magnetic body, and is connected to the output part and the second sound emission unit. The at least one magnetic body is disposed adjacent to the output part.