Patents by Inventor Ping-Tang Lee

Ping-Tang Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Headphone structure for adjusting audio frequencies
    Patent number: 9438989
    Abstract: A headphone structure for adjusting audio frequencies is provided, which comprises a front housing, a rear housing, a sound-producing unit in the front housing and an elastic ear-contacting body sleeving the front housing. The front housing has at least one slot or recess, and the elastic ear-contacting body sleeves the front housing to form at least one gap. The headphone structure for adjusting audio frequencies of the present invention has better results for the adjustment of bass frequencies. In addition, the headphone structure of the present invention is not complicated and is easy to manufacture. The headphone structure of the present invention can be applied to various types of headphone, such as in-ear headphones and circumaural headphones.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: September 6, 2016
    Assignee: Huiyang Dongmei Audio Products Co., Ltd.
    Inventors: Ming-Chung Chu, Ping-Tang Lee
  • HEADPHONE STRUCTURE FOR ADJUSTING AUDIO FREQUENCIES
    Publication number: 20150382099
    Abstract: A headphone structure for adjusting audio frequencies is provided, which comprises a front housing, a rear housing, a sound-producing unit in the front housing and an elastic ear-contacting body sleeving the front housing. The front housing has at least one slot or recess, and the elastic ear-contacting body sleeves the front housing to form at least one gap. The headphone structure for adjusting audio frequencies of the present invention has better results for the adjustment of bass frequencies. In addition, the headphone structure of the present invention is not complicated and is easy to manufacture. The headphone structure of the present invention can be applied to various types of headphone, such as in-ear headphones and circumaural headphones.
    Type: Application
    Filed: October 31, 2014
    Publication date: December 31, 2015
    Applicant: Huiyang Dongmei Audio Products Co., Ltd.
    Inventors: Ming-Chung Chu, Ping-Tang Lee