Electronic device provided with theft prevention function, and method for preventing theft of electronic devices
AssigneesSanyo Electric Co., Ltd., Sanyo Visual Technology Inc.
InventorsAkihiko Yamashita, Akinori Tsubouchi
Life of this patent
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Abstract
An electronic device includes: a memory storing a first lock release code; a comparing portion comparing the first lock release code with a second lock release code that is input with an input device; a controlling portion releasing a lock if the comparing portion finds that the first lock release code matches the second lock release code, and permitting the electronic device to operate normally; and a lock release portion releasing the lock, even if the comparing portion finds that the first lock release code does not match the second lock release code, or no code input is made, when a first predetermined time elapses from a predetermined time point.
Claims20
An electronic device, comprising:
- a memory storing a first lock release code;
- a comparing portion comparing the first lock release code with a second lock release code that is input with an input device;
- a controlling portion releasing a lock if the comparing portion finds that the first lock release code matches the second lock release code, and permitting the electronic device to operate normally;
- and
- a lock release portion releasing the lock, even if the comparing portion finds that the first lock release code does not match the second lock release code, or no code input is made, when a first predetermined time elapses from a predetermined time point.
A method for preventing theft of an electronic device, comprising the steps of:
- storing a lock release code in a memory of the electronic device;
- generating information corresponding to the lock release code stored in the memory;
- making the electronic device request an input of the information corresponding to the lock release code;
- comparing the input information with the lock release code stored in the memory;
- releasing a lock if the input information is found to match the lock release code in the comparing step, and permitting the electronic device to operate normally;
- and
- releasing the lock, even if the input information is found not to match the lock release code in the comparing step, or no input of the information is made, when a first predetermined time elapses from a predetermined time point.
Dependencies are inferred from the claim text.