公开(公告)号：US10120696B2

公开(公告)日：2018-11-06

申请号：US14662596

申请日：2015-03-19

Applicant: Sony Mobile Communications Inc.

Inventor： David Berthet

IPC: G06F9/44 ,  G06F9/4401 ,  G06F21/88 ,  H04W12/12 ,  G06F21/30 ,  G06F21/57 ,  H04L29/06

Abstract: A method and a device for controlling usability of a communication device having a processing unit including a memory for storing computer code, a modem, an access circuit connected to the modem for cellular network authentication and access, and a secure element connected to the access circuit. A boot of the processing unit and the secure element can be initiated at power up of the device. A boot service in the secure element can be executed, and a current state of a state machine in the secure element can be determined. Thereafter, a partition of an operating system can be booted, where the partition is selected dependent on said current state of the state machine.

公开(公告)号：US10664620B2

公开(公告)日：2020-05-26

申请号：US16465540

申请日：2016-12-20

Applicant: SONY MOBILE COMMUNICATIONS INC.

Inventor： David Berthet ,  Rickard Ljung

IPC: H04L29/06 ,  H04W24/08 ,  G06F21/70 ,  G05B19/042 ,  H04W12/06 ,  H04W4/80

Abstract: System for controlling usability of an electronic device (1), which host device comprises a processing unit (2), the system comprising a first control module (10), connected to the processing unit, said first control module comprising a modem (11) for communicating with a cellular network, and an access circuit (101) connected to the modem for cellular network access, which access circuit comprises a first secure element (12); a second control module (41) comprising a second secure element (411), configured to communicate with the first secure element over a communication link; wherein said access unit is configured to realize a state machine configured to set a usability state dependent on communication between the first secure element and the second secure element, and to control the device in accordance with said usability state.