Patent ID: 11924633
Assignee: MAXELL, LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A system of mobile terminals in communication with each other, comprising:
a first mobile terminal having:
a first wireless LAN communication circuit transmitting and receiving information to and from a wireless router;
a first wireless communication circuit transmitting and receiving information to and from a base station;
a first memory for storing a first password corresponding to the first mobile terminal and information about a second mobile terminal;
a first Bluetooth transceiver which for performing short-range wireless communications;
a location detector for determining a location of the first mobile terminal via based on GPS signals;
a first display displaying information corresponding to an unlock operation when the first mobile terminal is in a locked state; and
a first processor; and
the second mobile terminal having:
a second wireless LAN communication circuit transmitting and receiving information to and from a wireless router;
a second wireless communication circuit transmitting and receiving information to and from a base station;
a second memory for storing a second password corresponding to the second mobile terminal and information about the first mobile terminal;
a second Bluetooth transceiver for performing short-range wireless communications;
a second display displaying information corresponding to an unlock operation when the second mobile terminal is in a locked state; and
a second processor,
wherein the first processor is configured to control the first Bluetooth transceiver to search for the second mobile terminal and determine whether the second mobile terminal is within range to conduct short-range wireless communications between the first Bluetooth transceiver and the second Bluetooth transceiver,
wherein the first display is configured to display information to indicate that the second mobile terminal is within range based on the determination,
wherein the Bluetooth transceiver is configured to perform short-range wireless communications with the second mobile terminal when the second mobile terminal is determined to be within range and when information about the second mobile terminal is stored in the first memory,
wherein the first processor is configured to:
switch the first mobile terminal from the unlocked state to the locked state when the first mobile terminal is not used for a predetermined period of time;
switch the first mobile terminal from the locked state to the unlocked state when it receives input of a password and the inputted password matches the first password;
perform biometric authentication to authenticate the user based on a face match operation and switch the first mobile terminal from the lock state to the unlocked state when the biometric authentication is performed; and
perform a warning operation such that the location of the first mobile terminal is transmitted to the second mobile terminal during the warning operation,
wherein the second processor is configured to control the second Bluetooth transceiver to search for the first mobile terminal and determine whether the first mobile terminal is within range to conduct short-range wireless communications between the second Bluetooth transceiver and the first Bluetooth transceiver,
wherein the second display is configured to display information to indicate that the first mobile terminal is within range based on the determination,
wherein the second Bluetooth transceiver is configured to perform short-range wireless communications with the first mobile terminal when the first mobile terminal is determined to be within range and when information about the first mobile terminal is stored in the second memory,
wherein the second processor is configured to:
switch the second mobile terminal from the unlocked state to the locked state when the second mobile terminal is not used for a predetermined period of time;
switch the second mobile terminal from the locked state to the unlocked state when it receives input of a password and the inputted password matches the second password; and
perform biometric authentication to authenticate the user based on a face match operation and switch the second mobile terminal from the lock state to the unlocked state when the biometric authentication is performed, and
wherein the first mobile terminal and the second mobile terminal are both previously registered mutually to the same user and the mutually registered terminals are configured to communicate with each other via Wi-Fi Direct.