Taiwan Semiconductor Manufacturing Comp. Ltd.

Jo-Chan Liu

Wen-Chang Kuo

Yao-Hsiung Chang

Kuo Hsiung Chen

Ho-Han Liu

Ti-Yen Yang

Chiang Kao

Chi-Pin Wang

A method of operating a user device includes: receiving a command from a user to power on the user device; determining whether the user device is located within a restricted zone through accessing a key server located within the restricted zone by a first monitoring entity of the user device before an operating system of the user device is executed, wherein the key server is configured to store a key for encrypting or decrypting the user device; and granting access of the user to the user device by the first monitoring entity in response to determining the user device as being within the restricted zone through successfully accessing the key server.

System and device for data protection and method thereof

A method of operating a user device includes: receiving a command from a user to power on the user device, wherein the user device includes information on a restricted zone associated with the user device; detecting, by a monitoring entity of the user device without involvement of any device external to the user device, whether the user device is located within the restricted zone in response to the user device being powered on and before an operating system of the user device is executed; and granting access of the user to the user device by the monitoring entity in response to detecting the user device as being within the restricted zone.

A method of operating a user device includes: detecting whether the user device is located within a restricted zone by a monitoring entity of the user device; and limiting access to the user device by the monitoring entity in response to detecting the user device as being outside the restricted zone.

Growing community of inventors

Hsinchu, Taiwan

Jo-Chan Liu