Personal digital assistant and data recovery method
First Claim
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1. A battery-driven personal digital assistant which wirelessly communicates with other terminals, comprising:
- a memory means for storing data;
a loss detection means for detecting whether the personal digital assistant is in a lost state;
a value information retention means for retaining a value assessment index indicating values of data stored in the memory means;
a recovery sequence determination means for determining a recovery sequence of data stored in the memory means based on the value assessment index retained in the value information retention means when the lost state is detected by the loss detection means;
a transmission means for transmitting data stored in the memory means to another terminal based on the recovery sequence determined by the recovery sequence determination means;
a remaining battery power level measurement means for measuring remaining battery power level; and
a consumption power retention means for retaining consumption power required for data transmission;
wherein the recovery sequence determination means determines the recovery sequence of data stored in the memory means based on the remaining battery power level measured by the remaining battery power level measurement means, the consumption power retained in the consumption power retention means and the value assessment index retained in the value information retention means.
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Abstract
A personal digital assistant comprises a loss detector to detect a lost state and a value information retainer for retaining a value assessment index, which are numerical values indicating data values. When a lost state is detected by the loss detector, a data recovery sequence is determined based on the data values and data is transmitted to another terminal. In determining the recovery sequence, electrical energy required for data transmission is calculated using a power consumption table and the remaining battery power level measured by a remaining battery power level meter is referenced.
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Citations
27 Claims
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1. A battery-driven personal digital assistant which wirelessly communicates with other terminals, comprising:
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a memory means for storing data; a loss detection means for detecting whether the personal digital assistant is in a lost state; a value information retention means for retaining a value assessment index indicating values of data stored in the memory means; a recovery sequence determination means for determining a recovery sequence of data stored in the memory means based on the value assessment index retained in the value information retention means when the lost state is detected by the loss detection means; a transmission means for transmitting data stored in the memory means to another terminal based on the recovery sequence determined by the recovery sequence determination means; a remaining battery power level measurement means for measuring remaining battery power level; and a consumption power retention means for retaining consumption power required for data transmission; wherein the recovery sequence determination means determines the recovery sequence of data stored in the memory means based on the remaining battery power level measured by the remaining battery power level measurement means, the consumption power retained in the consumption power retention means and the value assessment index retained in the value information retention means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A data recovery method for recovering data within a personal digital assistant by wirelessly transmitting data to another terminal when in a lost state, comprising the steps of:
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determining, at a recovery sequence determination means of the personal digital assistant, a data recovery sequence based on a value assessment index indicating data values when detected in the lost state; and transmitting, from a transmission means of the personal digital assistant, data to another terminal based on the determined recovery sequence; wherein the recovery sequence of data is determined based on remaining battery power level, power consumption required for data transmission and the value assessment index. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification