Abstract: Embodiments of the present application relate to the field of communication and disclose a time synchronization method, an electronic device, a server and a storage medium. In the present application, an air interface message transmitted by a base station is received, and parsing out synchronization time information and leap predication information from the air interface message are parsed out; and it performs time synchronization with the base station according to the synchronization time information and the leap predication information.

Abstract: A control method, a control apparatus and a device for preventing pseudo GNSS signal interference, and a storage medium are provided. The method includes: in response to detecting that a received GNSS signal includes a pseudo GNSS signal, restraining a time service system of a communication device from tracking the received GNSS signal; and removing the restraining on the time service system in response to detecting that the pseudo GNSS signal disappears.

Abstract: A time synchronization method, a programmable logic device, a single board and a network element are provided. In the method, a programmable logic device receives a request message from a terminal, generates a time synchronization message according to the request message, and sends the time synchronization message to the terminal.

Abstract: A lamp driver for an LED lamp includes a voltage input port which is adapted to connect the lamp driver to a power source. A boost converter circuit is connected to the voltage input port. A voltage output port is adapted for connecting an LED to the lamp driver. A shutdown circuit provides a shutdown signal, which is connected to the voltage input port for detecting an input voltage of the voltage input port and is connected to the boost converter circuit for controlling at least one active component of the boost converter. The shutdown circuit is arranged to shut down the boost converter circuit when a shutdown voltage at the voltage input port is detected. During the shutdown of the boost converter circuit, the voltage output port still provides an operation voltage for the LED.

Abstract: A lamp driver for an LED lamp includes a voltage input port which is adapted to connect the lamp driver to a power source. A boost converter circuit is connected to the voltage input port. A voltage output port is adapted for connecting an LED to the lamp driver. A shutdown circuit provides a shutdown signal, which is connected to the voltage input port for detecting an input voltage of the voltage input port and is connected to the boost converter circuit for controlling at least one active component of the boost converter. The shutdown circuit is arranged to shut down the boost converter circuit when a shutdown voltage at the voltage input port is detected. During the shutdown of the boost converter circuit, the voltage output port still provides an operation voltage for the LED.

Abstract: A time synchronization method, a programmable logic device, a single board and a network element are provided. In the method, a programmable logic device receives a request message from a terminal, generates a time synchronization message according to the request message, and sends the time synchronization message to the terminal.

Abstract: A time synchronization method and apparatus for network devices and a time synchronization server are disclosed, which relates to the field of communication technology, to solve the problem of failing to perform high-capacity and centralized time synchronization due to less timely processing of a time synchronization message in the related art. The method includes: a programmable logic device receiving and parsing a time synchronization message from a to-be-synchronized device in a physical layer, wherein the time synchronization message carries a synchronization parameter; the programmable logic device generating a reply message for the time synchronization message according to local reference time and update configurations of the synchronization parameter; and the programmable logic device sending the reply message and a link establishment and communication message from a CPU to the to-be-synchronized device in a preset order.

Abstract: The present disclosure discloses a method and device for receiving and sending a message, a channel unit and communication equipment. The method for receiving and sending the message of the present disclosure specifically includes that: a channel unit receives a message sent by equipment born by an equipment network interface; the channel unit judges whether the received message is a message required to be processed by a CPU or not; when a judgment result is that the received message is the message required to be processed by the CPU, the channel unit sends the message to the CPU, receives a response message returned by the CPU, and directly forwards the response message to the equipment; and when the judgment result is that the received message is not the message required to be processed by the CPU, the channel unit generates and sends a corresponding response message to the equipment.

Abstract: A noise making arrow is provided. The noise making arrow includes an arrow body having a head and a tail. A whistle is attached to the arrow body. The whistle may include a slot that is positioned in the same direction as the head of the arrow body. When the arrow is launched, air may rush through the slot and exit the slot, creating a whistle noise.

Abstract: A noise making arrow is provided. The noise making arrow includes an arrow body having a head and a tail. A whistle is attached to the arrow body. The whistle may include a slot that is positioned in the same direction as the head of the arrow body. When the arrow is launched, air may rush through the slot and exit the slot, creating a whistle noise.

Abstract: Various embodiments may relate to a circuit device and an electronic apparatus. The circuit device may include a main circuit unit, an energy store and output unit and a valley detection unit. The main circuit unit transfers energy to the energy store and output unit according to a detected voltage of the valley detection unit. Furthermore, the circuit device described above also includes a malfunction processing unit for preventing the main circuit unit from transferring energy to the energy store and output unit by adjusting the detected voltage of the valley detection unit in the case that the energy store and output unit has an output malfunction. Hereby, elements in the circuit device may be prevented from being damaged by the output malfunction. Moreover, the circuit device has a simple structure and is cost effective.

Abstract: Example methods, apparatus and articles of manufacture to route policy requests are disclosed. A disclosed example method includes sending bandwidth probe packets at a probing rate, receiving a packet containing an indication representative of whether the probe packets triggered congestion, and selecting a transmission rate for sending data packets based on the probing rate and the indication.

Abstract: Example methods, apparatus and articles of manufacture to route policy requests are disclosed. A disclosed example method includes sending bandwidth probe packets at a probing rate, receiving a packet containing an indication representative of whether the probe packets triggered congestion, and selecting a transmission rate for sending data packets based on the probing rate and the indication.

Abstract: A method for sending and receiving a clock and an apparatus for transmitting the clock. Several kinds of clocks are encoded and framed at a sending port so that the clocks needed by all modes of base stations are transmitted in one pair of interconnecting lines. A receiving port can precisely recover the needed clock out. This not only reduces the number of interconnecting lines on the backboard and improves flexibility, but also avoids that the clock decoded out by the receiving port might be imprecise.

Abstract: The invention relates to a method for carrying out a QoS-oriented handoff between a first and a second IP-based, especially mobile IPv6-based, communication path, between a mobile node (MN) and a correspondent node (CN), the second communication path being part of a number of communication paths which can be accessed by the mobile node, with no, one, or a plurality of intermediate instances.