Title:
【発明の名称】移動電話装置
Document Type and Number:
Japanese Patent JP2806589
Kind Code:
B2
Abstract:
An automobile radio telephone apparatus capable of detecting (30,32,26) a drop of power source voltage to prevent a telephone channel from being occupied wastefully and to thereby enhance efficient use of channels with regard to the operation of an automobile radio telephone system. When the power source voltage is lower than a predetermined voltage, the apparatus informs the user of such an occurrence (38,40). On the lapse of a predetermined period of time (34) and if a conversation is under way, the apparatus warns the user that it will execute a forcible conversation ending procedure (36) and then executes it.
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Inventors:
Motoki Komoda
Application Number:
JP1284490A
Publication Date:
September 30, 1998
Filing Date:
January 23, 1990
Export Citation:
Assignee:
NEC
International Classes:
H04B7/26; H04B1/16; H04B1/46; H04W52/02; (IPC1-7): H04B7/26; H04Q7/38
Domestic Patent References:
| JP239756A |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)