Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PORTABLE TELEPHONE
Document Type and Number:
Japanese Patent JP2001352385
Kind Code:
A
Abstract:

To provide a portable telephone that can reduce an electromagnetic energy emitted from the inside of the portable telephone to a head of a human body.

The portable telephone 102 has a transmitter 6 that generates a 1st voice signal, a transmission circuit that transmits a 1st radio signal resulting from modulating the 1st voice signal via an antenna 1, a reception circuit that demodulates a 2nd radio signal received by the antenna 1 to generate a 2nd voice signal, a receiver 9 that sounds the 2nd voice signal, a printed circuit board 5 on which the reception circuit and the transmission circuit are mounted, a shield case 4A that suppresses electromagnetic wave interference between the printed circuit board 5 and the antenna 1 and the surface of which is conductive, and a radio wave absorbing body 31 that is closely adhered to an area 49 of the surface of et shield case 4A placed toward a body head 91 in the case of a speech by an adhesive 22 containing a magnetic loss material.


Inventors:
Toyoda, Junichi
Okayama, Katsumi
Iwashita, Takeshi
Kanayama, Yoshitaka
Ito, Hirochika
Application Number:
JP2000000175570
Publication Date:
December 21, 2001
Filing Date:
June 07, 2000
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SONY CORP
International Classes:
H05K9/00; H01Q1/24; H01Q1/52; H01Q17/00; H04M1/02; H04Q7/32; (IPC1-7): H04M1/02; H01Q1/24; H01Q1/52; H01Q17/00; H04Q7/32



 
Previous Patent: PORTABLE TELEPHONE

Next Patent: PORTABLE TELEPHONE UNIT