Title:
通信装置及びヘルメット
Document Type and Number:
Japanese Patent JP4759265
Kind Code:
B2
Abstract:
A communication apparatus includes a support structure (41) that is fastenable to a safety helmet (58). A vibration conduction microphone (54) is carried by the support structure. The vibration conduction microphone and the speaker enclosure (43) are positioned so that, when the support structure is fastened to the safety helmet, the vibration conduction microphone and the speaker enclosure come into contact with a rear of the wearer's head.
Inventors:
Alfred Stephen Miranda
Application Number:
JP2004534850A
Publication Date:
August 31, 2011
Filing Date:
September 05, 2003
Export Citation:
Assignee:
Innotek Proprietary Limited
International Classes:
A42B3/30; A42B3/14; A62B18/08; H04B1/38; H04M1/05; H04R1/08
Domestic Patent References:
| JP2003134581A | ||||
| JP1146497A | ||||
| JP64068510A | ||||
| JP10088414A | ||||
| JP58123691U | ||||
| JP3010428U |
Attorney, Agent or Firm:
Shinsuke Nakajima