Sony Corporation

Michihiro Kaneko

Hiroshi Yasuda

Morihiko Hayashi

Michihito Nakagawa

Hideyuki Sato

Kentaro Suzuki

Yoshio Harada

Ryoichi Nakashima

Masashi Kumada

A battery pack has a charge and discharge count measuring part () configured to measure the number of times of charges and discharges of a secondary battery based on the summed value of the charge current for the secondary battery, and a decay rate output part () configured to compute a decay rate that indicates a degree of decay of the secondary battery based on the number of times of charges and discharges measured by the charge and discharge count measuring part () and to output it to a device being a discharge load. For example, the charge and discharge count measuring part () repeatedly sums the detected values of the charge current to a predetermined threshold, and counts up the number of times of charges and discharges every time when the summed value reaches the threshold. Accordingly, even though charges and discharges are repeated at finer steps in a relatively narrow voltage range, the number of times of charges and discharges can be counted accurately, and the computing accuracy of the decay rate is improved. In the battery pack in which the secondary battery is accommodated, parameters for detecting the remaining amount of the battery are detected more accurately.

Battery pack, electronic appliance, and method of detecting remaining amount of battery

In a communication terminal equipment and in a method of controlling call incoming, unnecessary noises in a period from the start of an alert sound to carrying out of the next operation can be reduced. When a predetermined operation is effected under the condition that an alert sound is ringing, the alert sound is stopped or the volume of the alert sound is reduced at least over a duration of call incoming. Thus, such a fear that persons in the surroundings may be troubled by the continuous ringing of the alert sound can be remarkably reduced. Further, since the situation that a power supply is cut off forcibly during all origination can be avoided, the fear that a person on the call origination side may be given an unpleasant feeling can be eliminated.

Communication terminal equipment and call incoming control method

In a communication terminal equipment and in a method of controlling call incoming, unnecessary noises in a period from the start of an alert sound to carrying out of the next operation can be reduced. When a predetermined operation is effected under the condition that an alert sound is ringing, the alert sound is stopped or the volume of the alert sound is reduced at least over a duration of call incoming. Thus, such a fear that persons in the surroundings may be troubled by the continuous ringing of the alert sound can be remarkably reduced. Further, since the situation that a power supply is cut off forcibly during call origination can be avoided, the fear that a person on the call origination side may be given an unpleasant feeling can be eliminated.

In a communication terminal device and a method of originating a call, the number of operations at the time of originating a call in a communication terminal device can be reduced. When the send key is depressed for a long period after inputting a numerical sequence by the numeral keys, the call origination based on the input numerical sequence itself is performed. In contrast, when the send key is depressed for a short period after inputting a numerical sequence, the call origination based on the telephone number read from the storage address corresponding to the input numeral sequence is performed. In this manner, the originating operation as to the telephone number stored in the telephone directory memory can be performed by inputting a numeral sequence corresponding to the storage address and depressing the send key, and the originating operation as to an arbitrary special telephone number can be performed merely by inputting a numerical sequence and depressing the send key. Accordingly, the communication terminal device can be obtained which can reduce the number of operations at the time of originating a call and hence provide excellent operability.

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Tokyo, Japan

Michihiro Kaneko