Title:
CORDLESS TELEPHONE SET WITH EXTERNAL BATTERY
Document Type and Number:
Japanese Patent JP3275498
Kind Code:
B2
Abstract:
PURPOSE: To decrease the telephone charge by preferentially connecting the slave equipment of the cordless telephone set to a home master equipment and to efficiently charge the internal battery.
CONSTITUTION: When the slave equipment is mounted on an external power unit 2 which is charging a 1st master equipment main body 3 at home by being mounted on the main body 3 and begins to be charged, a selective switching means 18 is so controlled as to select the 1st master equipment body 3. Further, the switching means is so controlled as to perform switching to the transmitter 15 in the external power unit. Therefore, this telephone set has a function for automatic switching to the external battery and a function for charging the internal battery of the slave equipment body 1.
Inventors:
Hirotsugu Haraguchi
Application Number:
JP32463793A
Publication Date:
April 15, 2002
Filing Date:
December 22, 1993
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H02J7/00; H04B7/26; H04M1/00; H04M1/725; (IPC1-7): H04M1/725; H02J7/00; H04B7/26
Domestic Patent References:
| JP5336223A | ||||
| JP487444A | ||||
| JP5153036A | ||||
| JP4223A |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)
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