Title:
【発明の名称】スピ―カ―装置とそれに関連する電話装置及び音声通信装置
Document Type and Number:
Japanese Patent JP2527445
Kind Code:
B2
Abstract:
An audio communications system for an office chair (10) provides a user with private listening of RF transmitted audio messages in an exposed environment such as an office area, without the use of headphones. An audio module (28), which mounts to the backrest (14) of an office chair (10) includes an RF receiver and a shaped, acoustic horn loudspeaker (42) which directs sound upwardly, behind the user's head, while minimizing laterial dispersion of the sound. In another aspect of the invention, the audio communications system includes transceiver for two-way communication, such as telephone, and an armrest (16) mounted microphone and keypad (34).
Inventors:
Douglas Sea Dayton
Application Number:
JP25818587A
Publication Date:
August 21, 1996
Filing Date:
October 13, 1987
Export Citation:
Assignee:
WANG LABORATORIES INCORPORATED
International Classes:
H04R1/02; H04B1/38; H04R5/02; (IPC1-7): H04B1/38; H04R1/02
Domestic Patent References:
| JP6066139U | ||||
| JP58119282U |
Other References:
【文献】米国特許4063614(US,A)
Attorney, Agent or Firm:
Kyozo Yuasa (4 outside)