Abstract: The present disclosure provides a resonant converter and a control method. The resonant converter includes: a primary side circuit including at least one set of primary side switches, where the primary side circuit is configured to receive an input voltage; a resonant network coupled to the primary side circuit; a transformer having a primary side winding and a secondary side winding, where the primary side winding is coupled to the resonant network; a secondary side circuit including at least one set of secondary side switches, where the secondary side circuit is coupled to the secondary side winding of the transformer; and a control block that controls the secondary side switches according to the input voltage, the output voltage and the current detection signal, so that the secondary side winding of the transformer is short-circuited during a preset time interval before operating state of the primary side switches changes.

Abstract: Systems and methods are provided for providing an object platform for datasets A definition of an object may be obtained. The object may be associated with information stored in one or more datasets. The information may be determined based at least in part on the definition of the object. The object may be stored in a cache such that the information associated with the object is also stored in the cache. One or more interfaces through which requests to perform one or more operations on the object are able to be submitted may be provided.

Abstract: The present disclosure is generally directed to an RFID tag for use with a metal fastener where the fastener operates as the antenna of the RFID tag. The RFID tag includes a microchip for storing data. The chip is electrically coupled to the metal fastener in order to receive and transmit the RF signal, the metal fastener thereby operating as the antenna for the RFID tag.

Abstract: A resonant converter, including: a primary side circuit including at least one set of primary side switches, where the primary side circuit is configured to receive an input voltage; a resonant network coupled to the primary side circuit; a transformer having a primary side winding and a secondary side winding, where the primary side winding is coupled to the resonant network; a secondary side circuit including at least one set of secondary side switches, where the secondary side circuit is coupled to the secondary side winding of the transformer; and a control block that controls the secondary side switches according to the input voltage, the output voltage and the current detection signal, so that the secondary side winding of the transformer is short-circuited during a preset time interval before operating state of the primary side switches changes.

Abstract: According to one embodiment, in response to a request received at a host agent of a server from a user device of a user over a network to process user data, a system transmits a token representing the request to an executor pool having a pool of a number of executors. The system receives by the host agent executable image(s) of an executor from the executor pool, where the executor pool allocated the executor from the pool of executors in response to successfully verifying the token. The system launches a restricted operating environment within the server, including providing the executable image(s) of the executor and the user data to the restricted operating environment. The system executes the executable image(s) of the executor within the restricted operating environment, where the executor, when executed, is to process the user data without accessing an external component external to the restricted operating environment.

Abstract: According to one embodiment, in response to a request received at a host agent of a server from a user device of a user over a network to process user data, a data processing system launches a restricted operating environment within the server. The system transmits a token representing the request to a guest agent executed within the restricted operating environment, where an executor associated with the token is launched by the guest agent within the restricted operating environment, where the executor, when executed, is configured to process the user data to generate a processing result without accessing an external component external to the restricted operating environment. The system returns the processing result back to the user device.

Abstract: A method, apparatus, and system for using a verification substitute header file in a verification of an application that uses Protocol Buffers (Protobuf) for data communication is disclosed. The operations comprise: obtaining one or more Protobuf message types from a Protobuf definition file; generating the verification substitute header file based on the Protobuf message types; adding one or more verification stubs to the verification substitute header file; including the verification substitute header file in source code of the application; and performing the verification of the application including the verification substitute header file.

Abstract: According to one embodiment, a system establishes a secure connection between a host system and a data processing (DP) accelerator over a bus, the secure connection including one or more data channels. The system transmits a first instruction from the host system to the DP accelerator over a command channel, the first instruction requesting the DP accelerator to perform a data preparation operation. The system receives a first request to read a first data from a first memory location of the host system from the DP accelerator over one data channel. In response to the request, the system transmits the first data to the DP accelerator over the data channel, where the first data is utilized for a computation or a configuration operation. The system transmits a second instruction from the host system to the DP accelerator over the command channel to perform the computation or the configuration operation.

Abstract: Systems and methods are provided for providing an object platform for datasets A definition of an object may be obtained. The object may be associated with information stored in one or more datasets. The information may be determined based at least in part on the definition of the object. The object may be stored in a cache such that the information associated with the object is also stored in the cache. One or more interfaces through which requests to perform one or more operations on the object are able to be submitted may be provided.

Abstract: The present disclosure is generally directed to an RFID tag for use with a metal fastener where the fastener operates as the antenna of the RFID tag. The RFID tag includes a microchip for storing data. The chip is electrically coupled to the metal fastener in order to receive and transmit the RF signal, the metal fastener thereby operating as the antenna for the RFID tag.

Abstract: Embodiments of the present disclosure disclose a method and apparatus for launching a device.

Abstract: Embodiments of the present disclosure disclose an identity authentication method, a terminal device, and a computer-readable storage medium. An embodiment of the method comprises: acquiring video data displaying a lip part mouth shape changing process of a user; parsing the video data to generate annotation information of a human face region displayed by each image in consecutive images constituting the video data and human face feature information corresponding to each image in the consecutive images; generating a lip part feature information sequence and a human face local part feature information sequence based on the generated annotation information and the consecutive images; and transmitting the generated human face feature information, the lip part feature information sequence, and the human face local part feature information sequence to a server, and receiving an identity verification result returned from the server. The embodiment enhances identity authentication security.

Abstract: The present disclosure provides a unique digitally integrated, self-trained pre-distortion curve generation method and apparatus for semiconductor lasers (SCLs) to generate linearly swept optical signals that are applicable to a wide range of sweep velocities and semiconductor laser types. The method requires no prior knowledge of the frequency response of the laser and is highly accurate.

Abstract: The present disclosure discloses a method and an apparatus for repairing a kernel vulnerability.

Abstract: Embodiments of the present disclosure disclose a method and apparatus for detecting a side channel attack. An embodiment of the method comprises: clearing data in a state save area of a target enclave; sequentially executing an instruction sequence in the target enclave; acquiring data in the state save area; and in response to determining that the acquired data in the state save area indicates that an asynchronous enclave exit with a cause of exception exit happens to the target enclave, determining that the side-channel attack to the target enclave exists. The embodiment implements detecting a side channel attack to the enclave without additional hardware.

Abstract: A resonant converter, including: a primary side circuit including at least one set of primary side switches, where the primary side circuit is configured to receive an input voltage; a resonant network coupled to the primary side circuit; a transformer having a primary side winding and a secondary side winding, where the primary side winding is coupled to the resonant network; a secondary side circuit including at least one set of secondary side switches, where the secondary side circuit is coupled to the secondary side winding of the transformer; and a control block that controls the secondary side switches according to the input voltage, the output voltage and the current detection signal, so that the secondary side winding of the transformer is short-circuited during a preset time interval before operating state of the primary side switches changes.

Abstract: Embodiments of the present disclosure disclose a method and an apparatus for testing a code file. A preferred embodiment of the method comprises: compiling a to-be-tested code file to obtain an intermediate code file; instrumenting a code block identifier of each code block in the intermediate code file to the intermediate code file; determining an identifier of a jump relationship between two code blocks that have the jump relationship in the intermediate code file; performing dynamic testing to the instrumented intermediate code file based on respective code block identifiers and respective identifiers of jump relationships. This embodiment enhances bug detection capabilities for testing a code file.

Abstract: The application provides a method, a device, and a server for checking a defective function that are applied to the defective functions in multiple versions. The method comprises: determining a preset defective function; checking whether there is an exception in a parameter of the preset defective functions; returning information indicating the exception of the parameter to an upper-layer function for calling the preset defective function, in a case that there is the exception of the parameter; and executing the preset defective function in a case that there is no exception of the parameter. In the technical solution of the embodiment of present application, filtering out a preset defective function in which there is an exception in a parameter is performed, and the preset defective function may be executed in a case that there is no exception of the parameter, and thus repairing of the kernel or application may be performed without obtaining the source code of the preset defective function.

Abstract: The present disclosure discloses a method and an apparatus for detecting an application.