Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
1999-01-11
2001-05-22
Nguyen, Lee (Department: 2683)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S039000, C455S090300, C455S343200, C455S574000, C379S413000
Reexamination Certificate
active
06236869
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a portable terminal equipment such as a portable telephone or the like. In details, the present invention relates to a portable terminal equipment capable of being operated with ease by shifting the equipment to a low-consumption standby mode in which a small amount of current is consumed when residual capacity of a battery is less than a predetermined value which represents the residual capacity of battery being capable of generating an outgoing call, in a standby state or a speaking state and by increasing the possibility of generating the outgoing call at necessary time.
TECHNICAL FIELD
In a simplified type portable telephone such as PHS (Personal Handyphone System), the voltage value of battery is detected in a standby state or a speaking state thereof and when said detected voltage value is less than a predetermined value, the user is warned with an alerting sound or an indication such that residual usable time of the battery is shortened and this causes the user to put the battery on charge and then the operation of the telephone main body is stopped when the voltage value of battery is less than the voltage value by which the telephone is normally operable to be used as the portable telephone.
When the user is warned with the alerting sound and so on while he or she is speaking by telephone, the requirement is briefly transmitted to the called party and then the possibility that the telephone communication may be broken, is also transmitted to the called party. However, it is impossible to generate the outgoing call to another called party after finishing the telephone communication. Usually, this causes the inconvenience for the user because the necessity to generate the outgoing call after finishing a telephone communication is elevated. Further, This also causes the inconvenience for the user because the outgoing call of the telephone may not be generated when the voltage value of battery is less than the voltage value by which the telephone is normally operable to be used as the portable telephone after warning with the alerting sound and so on in the standby state.
Hence, it is an object of the present invention to provide a portable terminal equipment capable of being operated with ease by increasing the possibility of generating an outgoing call at necessary time.
DISCLOSURE OF THE INVENTION
According to the present invention, there is provided a portable terminal equipment comprising a residual-capacity-detecting means for detecting a residual capacity of a battery, a first residual-capacity-judging means for judging whether or not the residual capacity of battery detected by said residual-capacity-detecting means is less than a first predetermined value which designates the residual capacity of battery being capable of generating the outgoing call, a second residual-capacity-judgment means for judging whether or not said residual capacity of battery detected by said residual-capacity-detecting means is less than a second predetermined value which is less than said first predetermined value, and a system control means. Said system control means controls the system so that the equipment main body system shifts to a low-consumption standby mode in which a small amount of current is consumed, when said first residual-capacity-judging means judges that said detected residual capacity of battery is less than said first predetermined value and so that the operation of equipment main body is stopped when said second residual-capacity-judgment means judges that said detected residual capacity of battery is less than said second predetermined value. The equipment comprises further a warning generating means for generating a warning and the system control means may control the system so that said warning generating means generates the warning when the equipment shifts from the speaking state to the low-consumption standby mode but said warning generating means does not generate the warning when the equipment shifts from the standby state to the low-consumption standby mode.
The residual capacity of battery is detected by the residual-capacity-detecting means. The detection of the residual capacity of battery is carried out by, for example, detecting the voltage value of battery. Alternatively, said detection is carried out by calculating the product of consumed current by the operating time of the equipment. When the residual capacity of battery is less than the first predetermined value which designates the residual capacity of battery being capable of generating the outgoing call, the equipment shifts to a low-consumption standby mode in which a small amount of current is consumed. When the residual capacity of battery is equal to the first predetermined value, it is possible, for example, to generate the outgoing call and to make a telephone communication for a set period of time.
In said low-consumption standby mode, an operation, for example, only an operation of generating the outgoing call, is accessed by said system control means. When the equipment shifts from the speaking state to the low-consumption standby mode, the warning generating means generates a warning and this warns the user that the equipment will shift to the low-consumption standby mode. When the equipment shifts from standby state to the low-consumption mode, the warning generating means does not generate the warning and thus the power consumption therefor is diminished. Further, when the residual capacity of battery is less than the second predetermined value, the operation of the equipment main body is stopped.
Additionally, the portable terminal equipment of this invention comprising a residual-capacity-detecting means for detecting a residual capacity of a battery, a first residual-capacity-judgment means for judging whether or not the residual capacity of battery detected by said residual-capacity-detecting means is less than a first predetermined value which designates the residual capacity of the battery being capable of generating the outgoing call, and a system control means. The system control means controls the system so that the terminal equipment main body shifts to the low-consumption standby state in which a small amount of current is consumed when the first residual-capacity-judgment means judges that the detected residual capacity of the battery is less than the first predetermined value. Further, the system control means controls the system so that the operation of equipment main body is stopped after a break of telephone communication when a set period of time has elapsed after generating call from the low-consumption mode and being brought into a speaking state of the equipment.
The residual capacity of battery is detected by the residual-capacity-judgment. When the residual capacity of battery is less than the first predetermined value which designates the residual capacity of battery being capable of generating the outgoing call, the equipment shifts to the low-consumption standby mode in which a small amount of current is consumed. In the low-consumption standby mode, an operation, for example, only an operation of generating the outgoing call is accessed by said system control means. When a set period of the time has elapsed since the equipment shifts from low-consumption standby mode to the speaking state following the operation of generating the outgoing call, the telephone communication is broken and then the operation of the equipment main body is stopped. Because such a constitution that the telephone communication is forcibly broken after a set period of time has elapsed, is constituted in this invention, the warning to the user by the warning generating means, for example, before the break of the telephone communication carries out in the state that the battery still has enough residual capacity to some degree.
REFERENCES:
patent: 4860005 (1989-08-01), DeLuca et al.
patent: 5095308 (1992-03-01), Hewitt
patent: 5204986 (1993-04-01), Ito et al.
patent: 5239694 (1993-08-01), Toyoshima
patent: 5287525 (1994-
Adachi Naofumi
Ootake Akira
Saitou Teru
Takeshima Yoshihito
Terada Ryouji
Aiwa Co. Ltd.
Nguyen Lee
Nguyen Simon
Smith-Hill and Bedell
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