公开(公告)号：US20210208925A1

公开(公告)日：2021-07-08

申请号：US17207186

申请日：2021-03-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun MA ,  Tianhong DING ,  Zhaozhe TONG

IPC: G06F9/48 ,  G06F1/24 ,  G06F11/07 ,  G06F13/24

Abstract: Method and systems for executing a non-maskable interrupt are provided. In one aspect, a method for executing a non-maskable interrupt includes: obtaining an interrupt request in a non-secure mode, and interrupting an operation of an operating system (OS); saving, in a secure mode, a status of the OS when the operation of the OS is interrupted; executing, in the non-secure mode, a procedure defined for the interrupt request; resume, in the secure mode, the status of the OS; and after resuming the status of the OS, continue executing the operation of the OS in the non-secure mode.

公开(公告)号：US20200034187A1

公开(公告)日：2020-01-30

申请号：US16592144

申请日：2019-10-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun MA ,  Tianhong DING ,  Zhaozhe TONG

IPC: G06F9/48 ,  G06F1/24 ,  G06F11/07 ,  G06F13/24

Abstract: The present invention discloses a method and an apparatus for executing a non-maskable interrupt. The method includes: obtaining a secure interrupt request in a non-secure mode, and interrupting an operation of an operating system OS, where the secure interrupt request cannot be masked; entering a secure mode by using the secure interrupt request, and saving, in the secure mode, an interrupt context of an OS status when the operation of the OS is interrupted; returning to the non-secure mode to execute user-defined processing; after the user-defined processing is completed, entering the secure mode again, and resuming the OS status in the secure mode according to the interrupt context; and returning to the non-secure mode again, and continuing to execute an operation of the OS. The method and the apparatus for executing a non-maskable interrupt in embodiments of the present invention can easily implement an NMI mechanism without depending on hardware.

公开(公告)号：US20190036440A1

公开(公告)日：2019-01-31

申请号：US16149739

申请日：2018-10-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun MA ,  Cicero DA SILVEIRA POSTIGLIONE ,  Grover Victor TORRICO-BASCOPÉ

IPC: H02M1/08 ,  H02M3/158 ,  H02M7/217

Abstract: The disclosure relates to a controller for a power converter, the power converter comprising a first switch and a second switch, wherein the controller is configured to receive a first control signal based on a first drain-to-source voltage of the first switch; receive a second control signal based on a second drain-to-source voltage of the second switch; derive a first switch control signal based on the first control signal and control the first switch by providing the first switch control signal to the first switch; derive a second switch control signal based on the second control signal and control the second switch by providing the second switch control signal to the second switch; wherein the first switch control signal and the second switch control signal each comprises turn-on edges and turn-off edges. Furthermore, disclosure also relates to corresponding methods, a non-transitory computer readable medium.

公开(公告)号：US20180225143A1

公开(公告)日：2018-08-09

申请号：US15947491

申请日：2018-04-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun MA ,  Tianhong DING ,  Zhaozhe TONG

IPC: G06F9/48 ,  G06F13/24 ,  G06F11/07 ,  G06F1/24

CPC classification number: G06F9/48 ,  G06F1/24 ,  G06F9/4812 ,  G06F11/0757 ,  G06F11/0793 ,  G06F13/24

Abstract: A method and an apparatus execute a non-maskable interrupt. The method includes: obtaining a secure interrupt request in a non-secure mode, and interrupting an operation of an operating system OS, where the secure interrupt request cannot be masked; entering a secure mode by using the secure interrupt request, and saving, in the secure mode, an interrupt context of an OS status when the operation of the OS is interrupted; returning to the non-secure mode to execute user-defined processing; after the user-defined processing is completed, entering the secure mode again, and resuming the OS status in the secure mode according to the interrupt context; and returning to the non-secure mode again, and continuing to execute an operation of the OS. The method and the apparatus for executing a non-maskable interrupt in embodiments of the present invention can easily implement an NMI mechanism without depending on hardware.

公开(公告)号：US20150249563A1

公开(公告)日：2015-09-03

申请号：US14699823

申请日：2015-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xun LUO ,  Jun MA

IPC: H04L27/36 ,  H04B1/04 ,  H04L27/00 ,  H04L27/38

CPC classification number: H04L27/36 ,  H03F3/24 ,  H04B1/04 ,  H04B1/40 ,  H04B2001/0408 ,  H04L27/0002 ,  H04L27/38

Abstract: The present invention discloses a transmitter, a receiver, and a method for receiving and transmitting a radio frequency signal, and relates to the field of radio communications technologies, which can perform carrier recovery and generation at a front end of a radio frequency circuit, thereby reducing a running cost of a baseband chip. The method includes: generating, by an amplitude discriminator/phase detector according to an intermediate-frequency analog signal, a signal amplitude pulse signal/signal phase pulse signal that is not corrected; generating, by a bit error matrix corrector, an amplitude/phase correction control signal; correcting, by the amplitude discriminator/phase detector, the signal amplitude pulse signal/signal phase pulse signal according to the amplitude/phase correction control signal; and converting, by an amplitude code generator/phase code generator, a corrected pulse signal into a corresponding digital code. The present invention is applicable to receiving/transmitting a radio frequency signal.

Abstract translation: 本发明公开了一种用于接收和发送射频信号的发射机，接收机和方法，涉及能够在射频电路的前端执行载波恢复和生成的无线电通信技术领域，从而 降低基带芯片的运行成本。 该方法包括：通过根据中频模拟信号的幅度鉴别器/相位检测器产生未校正的信号幅度脉冲信号/信号相位脉冲信号; 通过位误差矩阵校正器产生振幅/相位校正控制信号; 通过幅度鉴别器/相位检测器根据振幅/相位校正控制信号校正信号幅度脉冲信号/信号相位脉冲信号; 并通过幅度码发生器/相位码发生器将校正的脉冲信号转换成相应的数字码。 本发明可应用于接收/发射射频信号。

公开(公告)号：US20150229368A1

公开(公告)日：2015-08-13

申请号：US14626482

申请日：2015-02-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun MA

IPC: H04B7/04 ,  H04B7/08

CPC classification number: H04B7/0413 ,  H04B7/04 ,  H04B7/0811 ,  H04L7/04 ,  H04L27/2656 ,  H04L27/2675

Abstract: Embodiments of the present invention provide a frame synchronization method. The frame synchronization method of the wireless system includes: separately delaying a signal received from one of N receiving antennas in K tributaries, and outputting K delayed signals, where N and K are positive integers; generating a first output signal by performing a correlation operation on the K delayed signals and a preamble subsequence; generating a second output signal by performing the correlation operation on each of the K delayed signals and each of the K delayed signals itself; and performing cancellation processing for the first output signal and the second output signal to obtain a string of data stream, obtaining a maximum value of the string of data stream as a correlation peak, so as to determine a position of a frame header according to a time point corresponding to the correlation peak.

Abstract translation: 本发明的实施例提供一种帧同步方法。 无线系统的帧同步方法包括：分别延迟从K个支路中的N个接收天线之一接收的信号，并输出K个延迟信号，其中N和K是正整数; 通过对K个延迟信号和前同步码序列执行相关运算来产生第一输出信号; 通过对K个延迟信号和K个延迟信号本身中的每一个执行相关运算来产生第二输出信号; 以及对所述第一输出信号和所述第二输出信号执行取消处理以获得一串数据流，获得所述数据串串的最大值作为相关峰值，以便根据第一输出信号和第二输出信号确定帧头的位置 时间点对应于相关峰值。