Title:
双方向性スピーカヘッドレスト
Document Type and Number:
Japanese Patent JP3760447
Kind Code:
B2
Abstract:
A sound reproduction unit comprises a central, head receiving portion and opposite first and second ends. The first and second ends have opposed front and back surfaces. A first acoustic transducer is mounted within the first end and a second acoustic transducer is mounted within the second end. First, second, third and fourth acoustically substantially transparent pathways are provided between the first transducer and the front surface of the first end, the first transducer and the back surface of the first end, the second transducer and the front surface of the second end, and between the second transducer and the back surface of the second end, respectively.
Inventors:
House, William, Neil
Application Number:
JP50791498A
Publication Date:
March 29, 2006
Filing Date:
July 09, 1997
Export Citation:
Assignee:
Harman International Industries, Inc.
International Classes:
B60R11/02; H04R5/02; H04R1/02
Domestic Patent References:
| JP7264689A |
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Kensuke Isshiki
Noritaka Harashima
Satoshi Suzuki
Takaaki Yasumura
Natsuki Morishita
Kensuke Isshiki
Noritaka Harashima
Satoshi Suzuki