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Title:
PORTABLE TELEPHONE AND CONTROL METHOD FOR DATA COMMUNICATION THEREBY
Document Type and Number:
Japanese Patent JP2002185387
Kind Code:
A
Abstract:

To suppress an increase in transmitting power in a portable telephone having a multicall function by which a voice communication and a data communication can be performed simultaneously.

During a voice talk in a state that an obstacle is detected by a detection means (composed of a means (1) to detect that an earphone microphone 2 is not mounted on an earphone-microphone input terminal 3, a means (2) to detect that the voice level of a voice microphone 7 is at a threshold value or more and a means (3) to detect that the detection value of a distance sensor 9 is at a prescribed value of less) which detects the obstacle to worsen the transmitting efficiency of an antenna 6 at the portable telephone 1, a high- speed data communication is regulated, and the increase in the transmitting power is suppressed. Only when the obstacle is not detected, the data communication is permitted. As a result, the high-speed data communication is ensured stably without increasing the transmitting power.


Inventors:
ASADA HIDEAKI
Application Number:
JP2000000377352
Publication Date:
June 28, 2002
Filing Date:
December 12, 2000
Export Citation:
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Assignee:
NEC CORP
International Classes:
H04B7/26; H04M1/725; H04M11/06; H04W72/12; H04B7/005; H04W24/00; H04W52/28; H04W52/34; (IPC1-7): H04B7/26; H04M11/06
Attorney, Agent or Firm:
Masaki Yamakawa