Apparatus for preventing loss of portable telephone using a bluetooth communication protocol and control method thereof
First Claim
1. An apparatus for preventing the loss of a portable telephone, comprising:
- a master communication system having a first short-range radio communication module and a first control section; and
a slave communication system having a second short-range radio communication module, wherein said first control section transmits a warning sound signal to the slave communication system to generate a specified warning sound when said first control section determines that a distance between the master communication system and the slave communication system is greater than a predetermined range.
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Accused Products
Abstract
Disclosed is an apparatus for preventing the loss of a portable telephone using a bluetooth communication and the control method thereof capable of preventing the loss of the portable telephone. According to the control method, the portable telephone periodically measures a power level of a radio frequency received from an earphone when a loss prevention mode is determined, and detects a calling state between the portable telephone and the earphone. The portable telephone transmits a warning signal data to the earphone if the power level of the radio frequency received from the earphone is below a predetermined level in a state that the calling state between the portable telephone and the earphone is detected. The earphone generates a warning sound if the warning sound signal is received from the portable telephone during a bluetooth radio communication with the portable telephone.
55 Citations
10 Claims
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1. An apparatus for preventing the loss of a portable telephone, comprising:
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a master communication system having a first short-range radio communication module and a first control section; and
a slave communication system having a second short-range radio communication module, wherein said first control section transmits a warning sound signal to the slave communication system to generate a specified warning sound when said first control section determines that a distance between the master communication system and the slave communication system is greater than a predetermined range. - View Dependent Claims (2, 3, 4)
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5. A control method for preventing the loss of a portable telephone, the method comprising the steps of:
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periodically measuring a power level of a radio frequency received from an earphone when a loss prevention mode is determined in the portable telephone;
determining whether a calling state exists between the portable telephone and the earphone;
transmitting a warning sound signal to the earphone if the power level of the radio frequency received from the earphone is below a predetermined level and the calling state between the portable telephone and the earphone is detected; and
generating a warning sound in the earphone if the warning sound signal is received from the portable telephone. - View Dependent Claims (6, 7, 8, 9)
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10. An apparatus for preventing the loss of a portable telephone, comprising:
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a master communication system having a short-range radio communication module; and
a slave communication system having another short-range radio communication module which is different from the short-range radio communication module of the master so that the slave performs a bluetooth communication with the master;
wherein if it is detected that a distance between the master and the slave is greater than a predetermined range, the master transmits a warning sound signal to the slave to generate a specified warning sound.
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Specification