초록 ▼

In a cordless telephone apparatus, a mobile set is provided with a remaining a battery amount measuring section which is incremented or decremented in accordance with a value corresponding to an operating condition of the mobile set and a value corresponding to a charging current set by a charging c

In a cordless telephone apparatus, a mobile set is provided with a remaining a battery amount measuring section which is incremented or decremented in accordance with a value corresponding to an operating condition of the mobile set and a value corresponding to a charging current set by a charging current change=over circuit. A full charge condition is detected on the basis of a value measured by the remaining battery amount measuring section, and this is used to control the charging current. Thereby, it becomes possible to operate the mobile set from the battery even in the course of charging, and to control the charging time and the charging current considering the electric power used for the operation of the mobile set. Since the charging time and the charging current are accurately adjusted in accordance with use conditions of the mobile set, it becomes possible to prevent over-charging and under-charging.

대표청구항 ▼

A cordless telephone apparatus, comprising: a fixed set which includes a power supply, means for transmitting and receiving a voice signal through a telephone line, a quick charge button actuable by a user, and quick charge control means responsive to actuation of the quick charge button for emittin

A cordless telephone apparatus, comprising: a fixed set which includes a power supply, means for transmitting and receiving a voice signal through a telephone line, a quick charge button actuable by a user, and quick charge control means responsive to actuation of the quick charge button for emitting quick charge designation data; a mobile set which includes means for conducting radio communication with the fixed set, a rechargeable battery which is supplied with a normal charge current from the power supply of the fixed set when the mobile set is placed on the fixed set, and remaining battery amount measuring means for converting a remaining amount of charge in the rechargeable battery into a numerical value and for altering the converted value by counting to change the converted value to a predetermined full charge value, with the converted value being changed by a predetermined measurement value per unit of time; charge current change means in one of the sets for changing the charge current that is supplied to the rechargeable battery; and charge current control means in said one of the sets for controlling the charge current change means, the charge current control means being operative to cause the charge current change means to supply a quick charge current to the rechargeable battery in lieu of the normal charge current if the quick charge button of the fixed set has been actuated to emit the quick charge designation data, and to cause the charge current change means to return the charge current to the normal charge current when the remaining battery amount measuring means reaches the predetermined full charge value.