Title:
通信端末装置、通信制御方法および通信制御プログラム
Document Type and Number:
Japanese Patent JP4370621
Kind Code:
B2
Abstract:
In a cellular phone 100, a directional coupler 20 provided between a transmitter for communication 32 and a duplexer 30 extracts a transmitted signal, and a detector 21 detects the signal and detects a transmission power level. Next, the comparator 22 compares a comparison level generated by a base voltage source 23 which generates a base voltage corresponding to a received field strength of a broadcast signal with an output level from the detector 21. When the output level exceeds the comparison level, the comparator generates a selection instruction signal of level ‘H,’ and switches a path so as to insert a filter between a TV receiving antenna ANT 1 and a TV receiver 13 using an input selection switch 10 and an output selection switch 12. Accordingly, deterioration of viewing quality due to suppressed sensitivity caused by transmission power of wireless communication can be prevented.
Inventors:
Kazutoshi Higuchi
Application Number:
JP2005240804A
Publication Date:
November 25, 2009
Filing Date:
August 23, 2005
Export Citation:
Assignee:
Casio Hitachi Mobile Communications Co., Ltd.
International Classes:
H04B15/02; H04B1/10; H04B1/16; H04B1/40; H04N5/44
Domestic Patent References:
| JP2005123768A | ||||
| JP2004260552A | ||||
| JP2003168992A | ||||
| JP11308143A | ||||
| JP2003244015A | ||||
| JP2003111004A | ||||
| JP10242886A |
Attorney, Agent or Firm:
Hidemi Kashima