Title:
携帯電話機
Document Type and Number:
Japanese Patent JP3986308
Kind Code:
B2
Abstract:
The invention provides a cell phone which shows good receiving sensitivity even in a state where synchronization with a base station is not provided, such as power-on and detection of a dead space. The invention alternately switches between a plurality of antennas a predetermined number of times per fixed time predetermined in accordance with the number of perch channels in a state where synchronization with a base station is not provided, and sets an antenna whose mean value of the receiving level of each of these antennas is the highest as an antenna to be used subsequently, that is, an antenna to open a control channel.
Inventors:
Yasuhisa Kimura
Koji Noda
Koji Noda
Application Number:
JP2001381665A
Publication Date:
October 03, 2007
Filing Date:
December 14, 2001
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04B7/26; H04B7/00; H04B7/005; H04B7/08
Domestic Patent References:
| JP9247063A | ||||
| JP4282922A | ||||
| JP9307489A | ||||
| JP9321678A | ||||
| JP10303793A | ||||
| JP7250013A |
Attorney, Agent or Firm:
Shohei Oguri
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu