Abstract: Provided are a light guide plate assembly, a backlight module, and a display device, which relate to the field of display technologies, and improve uniformity of the light intensity of light emitted from different areas in the light guide plate assembly. The light guide plate assembly includes a reflection portion having an aperture; and a transmission portion. At least part of the transmission portion is located in the aperture. The transmission portion includes a converging portion and a diverging portion. A curvature of a surface of the converging portion adjacent to a light-incoming side of the light guide plate assembly is greater than or equal to 0, and a curvature of a surface of the diverging portion adjacent to the light-incoming side of the light guide plate assembly is smaller than or equal to 0.

Abstract: A light guide plate assembly, a backlight module, and a display device are provided. The light guide plate assembly is configured to guide exiting light emitted from a light-emitting element. The light guide plate assembly includes a reflective part includes an opening, and a transmissive part. At least a part of the transmissive part is located at a side of the reflective part adjacent to a light-exiting side of the light guide plate assembly. The transmissive part includes a first part. Along a direction from a center of the opening to an edge of the opening, light intensity of the exiting light received by the first part is negatively correlated to light transmittance of the first part.

Abstract: Embodiments of the present disclosure relate to a method, an electronic device, and a computer program product for recommending a protection strategy. The method includes obtaining contents of attributes of a plurality of data assets adjusted. The method further includes generating a plurality of vector representations for the plurality of data assets based on the contents of the attributes. The method further includes dividing the plurality of data assets into at least one category based on the plurality of vector representations. The method further includes if it is determined that a protection strategy for one data asset in the at least one category exists, determining the protection strategy as a recommended strategy for another data asset in the at least one category.

Abstract: Systems and methods are provided for wireless power transfer in a vehicle. A wireless power transfer system can include a high-frequency alternating current (HFAC) inverter electrically coupled to the power source and a transmitter to wirelessly transmit a HFAC power signal to at least one device of a vehicle, such as sensors (e.g., LiDAR, GPS etc.) and cameras. The HFAC power signal provides wireless power and a data signal to the at least one device of a vehicle. The wireless power transfer system can eliminate the need for cabling and wires to provide power to the device. Wireless power transfer can include use or a data modulation circuit and a pulse current source to inject a pulse current to the HFAC power signal as superimposed data. System configurations can power a plurality of devices. Systems can includes a plurality of HFAC inverters and transmitters to power multiple sets of devices.

Abstract: A method, electronic device, and computer program product for processing data is disclosed. The method includes acquiring a configuration file for generating and sending a structured report, the structured report involving analysis of an application. The method also includes acquiring, based on an address of a data source in the configuration file, data from the data source to add the data to the structured report, the data source including the same type of data generated by the application. The method includes sending, based on an identifier of a target server in the configuration file, the structured report to the target server for analyzing the application. With this method, the format of a structured report to be acquired can be adjusted at any time without version upgrade, thereby saving time.

Abstract: Embodiments of the present disclosure relate to a method, a device and a computer program product for recovering data. The method comprises in response to receiving a request to recover data from a backup node to a source node, determining a plurality of candidate backup nodes having copies of the data; determining respective performance indicators of the plurality of candidate backup nodes; and determining, from the plurality of candidate backup nodes, the backup node for recovering the data to the source node based on the respective performance indicators of the plurality of candidate backup nodes.

Abstract: A method and a system of controlling a traffic lighting apparatus, an electronic device, and a storage medium, which relate to a field of computer technology, and in particular to a field of intelligent transportation technology. The method of controlling the traffic lighting apparatus includes: generating, in response to a state control operation for a virtual identification of the lighting apparatus being received, a control request based on the state control operation, where the control request is used to control a state of the lighting apparatus; sending the control request; and updating, in response to a state control result for the control request being received, display data of the virtual identification for the lighting apparatus based on the state control result.

Abstract: This application provides a dynamic time assignment method, apparatus, and system, and relates to the field of communications technologies. The method includes: Central office equipment and customer premise equipment obtain a length of a new downstream transmission duration. The central office equipment and the customer premise equipment first shorten a downstream transmission duration or an upstream transmission duration whose length needs to be shortened; and after lengths of all downstream transmission durations or all upstream transmission durations are shortened, prolong the length of the downstream transmission duration or the upstream transmission duration whose length needs to be prolonged.

Abstract: This application provides a dynamic time assignment method, apparatus, and system, and relates to the field of communications technologies. The method includes: Central office equipment and customer premise equipment obtain a length of a new downstream transmission duration. The central office equipment and the customer premise equipment first shorten a downstream transmission duration or an upstream transmission duration whose length needs to be shortened; and after lengths of all downstream transmission durations or all upstream transmission durations are shortened, prolong the length of the downstream transmission duration or the upstream transmission duration whose length needs to be prolonged.

Abstract: A method for adjusting parameters of a sending device and a receiving device, and a terminal device are provided. In the method, a new precoding parameter that needs to be used by a sending device on a line when a precoding matrix in a downlink direction of the line changes, and a new signal recovery parameter that needs to be used by a receiving device and matches the new precoding parameter are first acquired; and then the new precoding parameter, the new signal recovery parameter, and a set moment and/or symbol at which the sending device starts to use the new precoding parameter are sent to the sending device, and the new signal recovery parameter and the set moment and/or symbol are sent to the receiving device by using the sending device.

Abstract: The present disclosure provides a data transmission method including: receiving a first-mode optical signal from a first port corresponding to a first port number; converting, according to a correspondence between the first port number and a first mode group number, the received first-mode optical signal into a second-mode optical signal carried in a first mode group identified by the first mode group number, where the second-mode optical signal carried in the first mode group identified by the first mode group number includes an optical signal in one or more modes; and outputting the second-mode optical signal obtained by means of conversion.

Abstract: The present disclosure provides a data transmission method including: receiving a first-mode optical signal from a first port corresponding to a first port number; converting, according to a correspondence between the first port number and a first mode group number, the received first-mode optical signal into a second-mode optical signal carried in a first mode group identified by the first mode group number, where the second-mode optical signal carried in the first mode group identified by the first mode group number includes an optical signal in one or more modes; and outputting the second-mode optical signal obtained by means of conversion.

Abstract: The present invention discloses a method for adjusting parameters of a sending device and a receiving device, and a terminal device. In the method, a new precoding parameter that needs to be used by a sending device on a line when a precoding matrix in a downlink direction of the line changes, and a new signal recovery parameter that needs to be used by a receiving device and matches the new precoding parameter are first acquired; and then the new precoding parameter, the new signal recovery parameter, and a set moment and/or symbol at which the sending device starts to use the new precoding parameter are sent to the sending device, and the new signal recovery parameter and the set moment and/or symbol are sent to the receiving device by using the sending device.

Abstract: The present invention discloses a method for adjusting parameters of a sending device and a receiving device, and a terminal device. In the method, a new precoding parameter that needs to be used by a sending device on a line when a precoding matrix in a downlink direction of the line changes, and a new signal recovery parameter that needs to be used by a receiving device and matches the new precoding parameter are first acquired; and then the new precoding parameter, the new signal recovery parameter, and a set moment and/or symbol at which the sending device starts to use the new precoding parameter are sent to the sending device, and the new signal recovery parameter and the set moment and/or symbol are sent to the receiving device by using the sending device.

Abstract: The present disclosure provides a data transmission method including: receiving a first-mode optical signal from a first port corresponding to a first port number; converting, according to a correspondence between the first port number and a first mode group number, the received first-mode optical signal into a second-mode optical signal carried in a first mode group identified by the first mode group number, where the second-mode optical signal carried in the first mode group identified by the first mode group number includes an optical signal in one or more modes; and outputting the second-mode optical signal obtained by means of conversion.

Abstract: An optical splitter has a main branch coupled to a number of tributary branches. The main branch includes a light-absorptive core and a light-reflective grating. The absorptive core can absorb light arriving from the tributary branches and transmit light arriving from the main branch to the reflective grating. The reflective grating can reflect light from the main branch back through the absorptive core to the main branch. Light arriving from the tributary branches exchanges mode with light reflected by the reflective grating.

Abstract: The present invention discloses a method for adjusting parameters of a sending device and a receiving device, and a terminal device. In the method, a new precoding parameter that needs to be used by a sending device on a line when a precoding matrix in a downlink direction of the line changes, and a new signal recovery parameter that needs to be used by a receiving device and matches the new precoding parameter are first acquired; and then the new precoding parameter, the new signal recovery parameter, and a set moment and/or symbol at which the sending device starts to use the new precoding parameter are sent to the sending device, and the new signal recovery parameter and the set moment and/or symbol are sent to the receiving device by using the sending device.

Abstract: The present invention provides a passive optical splitter and a passive optical network system. The passive optical splitter includes at least two splitting single-mode waveguides, at least one combining single-mode waveguide, and at least one tapered waveguide, where one end of the tapered waveguide is coupled to the at least two splitting single-mode waveguides respectively, the other end of the tapered waveguide is coupled to the at least one combining single-mode waveguide, and a core layer of the tapered waveguide is made of a light-induced refractive index changeable material. When an optical signal is transmitted, light transmission is limited by increasing a refractive index difference between positions with different optical field intensity in the core layer, thus reducing a loss of optical signal leakage and improving uplink transmission efficiency.

Abstract: The present invention provides an overload control method for an access media gateway and the corresponding access media gateway. The access media gateway restricts call of a subscriber coupled thereto and acting as a calling side or a called side. Different overload levels and calls with high priority to be guaranteed for the respective overload levels are set at the access media gateway. The subscriber of the access media gateway acting as a calling side or a called side determines an overload level upon detection of its own overload, judges whether the call is a call with high priority to be guaranteed for the overload level. If it is a call with high priority to be guaranteed for the overload level, the call is processed in accordance with a normal call flow; otherwise, the call is rejected.

Abstract: The present invention provides an overload control method for an access media gateway and the corresponding access media gateway. The access media gateway restricts call of a subscriber coupled thereto and acting as a calling side or a called side. Different overload levels and calls with high priority to be guaranteed for the respective overload levels are set at the access media gateway. The subscriber of the access media gateway acting as a calling side or a called side determines an overload level upon detection of its own overload, judges whether the call is a call with high priority to be guaranteed for the overload level. If it is a call with high priority to be guaranteed for the overload level, the call is processed in accordance with a normal call flow; otherwise, the call is rejected.