公开(公告)号：US20190266360A1

公开(公告)日：2019-08-29

申请号：US16412932

申请日：2019-05-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Feifei YIN ,  Yu LIU ,  Jiayin LU

IPC: G06F21/75 ,  G06F21/72 ,  G06F21/60

Abstract: The present application provides example terminal chips. One example terminal chip includes a security element, an application processor, and an interface module configured to transfer information between the application processor and the security element. The terminal chip includes a first power interface configured to receive power outside the terminal chip. A first power input port of the security element is connected to the first power interface, and at least one of the application processor or the interface module is connected to the first power interface. In the example terminal chip, a power supply port of the security element is connected to a power supply port of the application processor or the interface module of the terminal chip.

公开(公告)号：US20180137283A1

公开(公告)日：2018-05-17

申请号：US15814115

申请日：2017-11-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haofeng WANG ,  Jiayin LU ,  Chongliang MA

IPC: G06F21/57 ,  G06F21/72 ,  G06F1/06 ,  G06F11/30 ,  G06F11/34

CPC classification number: G06F21/57 ,  G06F1/06 ,  G06F11/3024 ,  G06F11/3058 ,  G06F11/348 ,  G06F11/3495 ,  G06F21/72 ,  G06F21/75 ,  G06F2221/034

Abstract: The present invention provide a method and a detection circuit for detecting a security chip operating slate. The detection circuit includes: a first register unit, a triggering unit, a delay unit, a routing unit, and a second register unit, where the second register unit is connected to the triggering unit. A first signal is delayed in the delay unit, to obtain a second signal, a third signal is obtained according to the second signal, and logical operation is performed on the first signal and the third signal, to output a level signal to trigger an alarm unit. Because each unit may be implemented by using a digital circuit, a size of the circuit can be reduced.

公开(公告)号：US20180114038A1

公开(公告)日：2018-04-26

申请号：US15793456

申请日：2017-10-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo WANG ,  Jiayin LU ,  Yu LIU

IPC: G06F21/75 ,  G06F21/72

CPC classification number: G06F21/755 ,  G06F21/72 ,  G06F2221/2123 ,  G06K19/07363

Abstract: The invention provides a attack prevention method, including: obtaining a first running start condition configured for a cipher engine; configuring, according to the first running start condition, a second running start condition for a scrambling module disposed on the chip, where the second running start condition is used to enable the scrambling module to enter an operating state of generating power consumption and an electromagnetic wave in a process of starting, according to the first running start condition, the cipher engine to perform data encryption/decryption processing; controlling the scrambling module to start to run when the second running start condition is met, where the scrambling module generates the power consumption and the electromagnetic wave during running; and controlling the cipher engine to start when the first running start condition is met, so that the cipher engine starts to perform data encryption/decryption processing.

公开(公告)号：US20130321438A1

公开(公告)日：2013-12-05

申请号：US13902081

申请日：2013-05-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhe LI ,  Jun HUANG ,  Jiayin LU ,  Jianbo HE

IPC: G06T1/60

CPC classification number: G06T1/60 ,  G09G3/2096 ,  G09G5/006 ,  G09G2350/00 ,  G09G2360/12 ,  G09G2360/121

Abstract: The present invention provides a display control method and system, and a display device. The method includes acquiring a status value of a display buffer; comparing the status value of the display buffer with a preset warning value of the display buffer; and adjusting a value of a depth of outstanding bus commands according to a comparison result. In the embodiments of the present invention, a status value of the display buffer is compared with a preset warning value of the display buffer, where the status value of the display buffer reflects a change to a current load; it may be determined whether a status value of the display buffer corresponding to the current load is normal according to a comparison result; and a value of a depth of outstanding bus commands is adjusted accordingly, effectively resolve a data real-timeness issue, and ensure that an entire system efficiently runs.

Abstract translation: 本发明提供一种显示控制方法和系统以及显示装置。 该方法包括获取显示缓冲器的状态值; 将显示缓冲器的状态值与显示缓冲器的预设警告值进行比较; 并根据比较结果调整未完成总线命令的深度值。 在本发明的实施例中，将显示缓冲器的状态值与显示缓冲器的预设警告值进行比较，其中显示缓冲器的状态值反映当前负载的变化; 可以根据比较结果确定与当前负载相对应的显示缓冲器的状态值是否正常; 并相应调整未完成总线命令的深度值，有效解决数据实时性问题，确保整个系统有效运行。