EARPHONE AND TERMINAL DEVICE

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20250030974A1
SERIAL NO

18714977

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

In accordance with an embodiment, an earphone includes: a housing having a cavity structure disposed within, and a sound output port in communication with the cavity structure; and a first sound transducer, a second sound transducer, and a third sound transducer disposed in the cavity structure, wherein: a sound production frequency of the second sound transducer is greater than a sound production frequency of the third sound transducer and is less than a sound production frequency of the first sound transducer, and the third sound transducer is a micro-electro-mechanical-system located between the first sound transducer and the sound output port.

First Claim

See full text

Other Claims data not available

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
HUAWEI TECHNOLOGIES CO LTDHUAWEI ADMINISTRATION BUILDING BANTIAN LONGGANG DISTRICT SHENZHEN GUANGDONG 518129 CHINA

International Classification(s)

loading....
  • 2022 Application Filing Year
  • H04R Class
  • 3243 Applications Filed
  • 1781 Patents Issued To-Date
  • 54.92 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Cunshuai Dongguan, CN 2 0
Lu, Lin Shanghai, CN 135 696
Xu, Chao Shanghai, CN 226 913
Zhang, Qiang Dongguan, CN 790 5324
Zhang, Tienan Dongguan, CN 6 4

Cited Art Landscape

Load Citation

Patent Citation Ranking

  • 0 Citation Count
  • H04R Class
  • 0 % this patent is cited more than
  • < 1 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1147101 - 10050100150200250300350400450500550600650700750800850900950100010501100115012001250

Forward Cite Landscape

Load Citation