TELEPHONE CONVERSATION SYSTEM USING PORTABLE TELEPHONE AND HANDS-FREE EQUIPMENT,申请号JP20050334790-传众专利搜索

TELEPHONE CONVERSATION SYSTEM USING PORTABLE TELEPHONE AND HANDS-FREE EQUIPMENT

申请公布号：JP2006081220(A)

申请号：JP20050334790

申请日期：2005.11.18

申请公布日期：2006.03.23

申请人：

DENSO CORP

发明人：SHIMIZU HIROAKI

分类号：H04M1/00;H04B1/40;H04W4/04;H04W84/10;H04W92/08

主分类号：H04M1/00

摘要：PROBLEM TO BE SOLVED: To switch-over from a hand set telephone conversation to a hands-free telephone conversation with exact timing. SOLUTION: When a portable telephone 1 and other portable telephones 21 performs by a hand set telephone conversation a telephone conversation through telephone network 22, and short-range radio transmission based on a telecommunication standard of bluetooth between the portable telephone 1 and a hands-free instrument 9 is possible, the telephone conversation is switched over into hands-free telephone conversation by using the hands-free instrument 9 by manipulating, for example, a predetermined key of the portable telephone 1. If a person who uses the portable telephone 1 is located outside of a vehicle, switching over from hand set telephone conversation to hands-free telephone conversation can be avoided in advance, by not operating the predetermined key; whereas if person who uses the portable telephone 1 is located inside of the vehicle, the hand set telephone conversation can be switched over to the handsfree telephone conversation by operating the predetermined key. COPYRIGHT: (C)2006,JPO&NCIPI