Gigadevice Semiconductor Assigned Patent

Gigadevice Semiconductor (Beijing), Inc., Beijing, China, has been assigned a patent (10,102,155) developed by Li, Baokui, Wang, Jinghua, and Wang, Nanfei, Beijing, China, for “method and device of information protection for micro control unit chip.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The disclosure discloses a method and a device of information protection for a micro control unit, (MCU) chip, the MCU chip comprises an instruction bus, a data bus, a flash controller and a user area of a flash memory, the flash controller is used to divide the user area into a first sub-area and a second sub-area, the method comprising: when the instruction bus accesses the user area, determining, whether the instruction bus accesses the first sub-area, if yes, entering the first sub-area working state, in the first sub-area working state, if the instruction bus accesses the second sub-area, entering the transition state, determining whether the time at transition state reaches a preset waiting time, if yes, entering the second sub-area working state, the disclosure is used to protect program from being stolen by users and prevent the cooperative companies stealing program from each other.”

The patent application was filed on January 26, 2015 (15/505,926).