Abstract: The disclosure relates to image retrieval, and provides a method for constructing an adaptive weight-based cross-camera proxy contrastive loss; the method includes: obtaining a pre-processed training dataset; inputting the pre-processed training dataset into a convolutional neural network to obtain a global feature; constructing a cross-camera proxy contrastive loss function based on the global feature; constructing an adaptive weight for the cross-camera proxy contrastive loss based on the cross-camera proxy contrastive loss function; training the network with adaptive weight-integrated cross-camera proxy contrastive loss; and optimizing the network by back-propagating an optimized network parameter.

Abstract: A host system, a device system, a data transfer method, a storage medium, and a computer program product are provided. The data transfer method includes: initiating, by a host controller, a data transfer transaction, where each data transfer transaction includes a start-of-frame packet indicating a beginning of the data transfer transaction, a USB standard-based protocol interval exists between two adjacent start-of-frame packets, and when the host controller sends a plurality of data transfer transactions, an interval between two adjacent start-of-frame packets is less than the protocol interval; and performing a physical connection between a host physical layer and a device physical layer to implement a data transfer, where the data transfer has a USB standard-based protocol symbol rate, and during the physical connection, a symbol rate of the data transfer is greater than the protocol symbol rate. The present invention improves USB data transfer efficiency.

Abstract: A clock duty cycle calibration circuit, method, and clock multiplier circuit, wherein the clock duty cycle calibration circuit uses the calibration control cell to perform a first sampling process on the delay-matched clock signal using the first feedback clock signal when the phase-locked loop cell is in the first locked state, can acquire a first sampled signal that used to instruct the relationship between the actual duty cycle of the calibration clock signal and the target duty cycle, then the calibration control cell generates the first calibration control signal according to the first sampled signal, thereby enable the duty cycle calibration cell to maintain the duty cycle of the calibration control signal at the target duty cycle according to the first calibration control signal, that can overcome duty cycle offset caused by operating temperature, which helps improve the accuracy of the generated calibration clock signal.

Abstract: A terminal includes a primary locking tab and a mating portion having front and rear end portions. The front end portion has a front annular portion and a front reinforcement portion. The front annular portion has a first top wall, a first bottom wall, and a pair of first side walls. The front reinforcement portion has a first bottom plate, a first side plate, and a first engagement plate. The first side plate and the first engagement plate are located on one of two sides of the first bottom plate. The primary locking tab extends obliquely rearward and upward from the front end portion. A root portion of the primary locking tab is connected to a rear side of the first top wall. The first bottom plate abuts an outer side of the first bottom wall. The first side plate, connected to the first top wall, abuts an outer side of one first side wall. The first engagement plate engages with an other first side wall.

Abstract: A terminal includes a mating portion for mating with a mating terminal and a guide plate. The mating portion includes a top wall, a bottom wall opposite the top wall in a height direction of the mating portion, and a pair of side walls opposite in a transverse direction of the mating portion. The guide plate is connected to a side of the top wall and guides insertion of the terminal into a terminal insertion hole of a connector housing in a correct orientation. A step portion adapted to abut against a secondary lock of a connector is formed at a rear end of the mating portion. The guide plate is located above and perpendicular to the top wall. A rear end of one of the side walls engages a rear end of the guide plate and/or a rear end of the top wall.

Abstract: The input structure comprises a base, an operating member, an elastic positioning assembly, and a detection assembly. The operating member is movably arranged on one side of the base. The elastic positioning assembly is arranged on another side of the base away from the operating member. At least two positioning portions are arranged on an end face of the operating member close to the elastic positioning assembly. The positioning portions cooperate with the elastic positioning assembly to position the operating member. The detection assembly is configured to detect position variation of the operating member, and generate a corresponding trigger signal. The electronic device comprises the input structure.

Abstract: A method for isolating failure in an alternating current bus of an energy storage power station includes: when a fault occurs on the alternating current bus, controlling all non-energy storage circuit breakers to trip and break and transmitting a protective signal to a coordination controller PMS by a bus protection device; upon receiving the protective signal, controlling all energy storage inverters PCS to perform power regulation and adjusting their power to 0 by the coordination controller PMS; controlling an energy storage circuit breaker to trip and break, thereby completing isolation of the fault of the alternating current bus. This method effectively avoids insulation damage to the devices and serious faults caused by the breaking overvoltage of the energy storage circuit breaker due to the capacitive inactive power emitted by the energy storage system when a bus fault occurs.

Abstract: A terminal includes a mating part having an insertion cavity extending along a longitudinal direction of the terminal and a first cantilever located in the insertion cavity. The first cantilever has a plurality of first electrical contacts spaced apart from each other in the longitudinal direction and simultaneously electrically contacting a side of a mating terminal inserted into the insertion cavity. A free end of the first cantilever is pressed against an inner wall surface of the insertion cavity. The mating part has a primary lock engaging a housing of a connector and a secondary lock feature engaging a secondary lock inserted into the housing, locking the terminal in the housing through the primary lock and the secondary lock.

Abstract: A connector includes a housing and an elastic latch. The elastic latch includes an elastic cantilever having a free end, a fixed end connected to the housing, and a main part extending between the free end and the fixed end. The fixed end has an inclined surface extending inclined with respect to a surface of the housing. An angle between the inclined surface and the surface of the housing is greater than 90 degrees.

Abstract: A connector includes a housing having an inner cavity, a flexible circuit board inserted into the inner cavity of the housing, and an injection molded seal formed onto the flexible circuit board. The injection molded seal is inserted into the housing and compressed between the housing and the flexible circuit board to achieve sealing between the housing and the flexible circuit board.

Abstract: A connector includes a housing having an inner cavity, a flexible circuit board inserted into the inner cavity of the housing, and a sealing element fitted on the flexible circuit board. The sealing element is inserted into the housing and compressed between the housing and the flexible circuit board to seal between the housing and the flexible circuit board.

Abstract: A connector includes a housing having a slot and a first glue filling cavity communicated with the slot, a flexible circuit board inserted into the housing through the slot, and a first sealant formed by a glue filled into the first glue filling cavity and the slot. The first sealant is bonded with the flexible circuit board and the housing to seal between the flexible circuit board and the housing.

Abstract: A connector includes a housing, multiple first terminals and a top cover. The housing defines multiple first terminal slots arranged and spaced in a transverse direction of the housing. The multiple first terminals are inserted into respective ones of the multiple first terminal slots. The top cover is installed on a top of the housing and is rotatably connected to the multiple first terminals. The top cover is rotatable between an opened position and a closed position.

Abstract: A connector comprises a first housing, a terminal arranged in the first housing, a second housing, and a locking member. The first housing includes a first slot adapted to receive the second housing. The terminal is adapted to electrically contact a circuit board received within a second slot of the second housing. A locking member is installed on the second housing and is adapted to lock the circuit board to the second housing. The second housing is movable relative to the first housing between a pre installation position where the terminal is adapted to be electrically separated from the circuit board and a final installation position wherein the terminal is adapted to be in electrical contact with the circuit board. The locking member is movable relative to the second housing between a pre locking position detached from the circuit board, and a final locking position engaged with the circuit board.

Abstract: Provided are a reset signal transmission circuit, a chip and an electronic device. The reset signal transmission circuit comprises a level shifting circuit and a first switching circuit, wherein the level shifting circuit is configured to transmit a reset signal from a first voltage domain to a second voltage domain, and the power supply voltage of the first voltage domain is lower than the power supply voltage of the second voltage domain. The first terminal of the first switching circuit is connected to the power supply signal input terminal of the level shifting circuit, and the second terminal of the first switching circuit is connected to the reset signal output terminal of the level shifting circuit. The first switching circuit is configured to control the disconnection of a quiescent current path in the level shifting circuit.

Abstract: Provided are a reset signal transmission circuit, a chip and an electronic device. The reset signal transmission circuit comprises a level shifting circuit and a first switching circuit, wherein the level shifting circuit is configured to transmit a reset signal from a first voltage domain to a second voltage domain, and the power supply voltage of the first voltage domain is lower than the power supply voltage of the second voltage domain. The first terminal of the first switching circuit is connected to the power supply signal input terminal of the level shifting circuit, and the second terminal of the first switching circuit is connected to the reset signal output terminal of the level shifting circuit. The first switching circuit is configured to control the disconnection of a quiescent current path in the level shifting circuit.

Abstract: -- The input structure comprises a base, an operating member, an elastic positioning assembly, and a detection assembly. The operating member is movably arranged on one side of the base. The elastic positioning assembly is arranged on another side of the base away from the operating member. At least two positioning portions are arranged on an end face of the operating member close to the elastic positioning assembly. The positioning portions cooperate with the elastic positioning assembly to position the operating member. The detection assembly is configured to detect position variation of the operating member, and generate a corresponding trigger signal. The electronic device comprises the input structure.

Abstract: A connector assembly includes a first connector and a second connector matable with the first connector. The first connector has a first housing and a pair of first conductive terminals disposed in the first housing each having a pair of first elastic terminals arranged symmetrically in a vertical direction. Each pair of first elastic terminals has a pair of front ends adapted to be brought into elastic and electrical contact with a pair of first wires inserted into the first connector. The second connector has a second housing and a pair of second conductive terminals disposed in the second housing each having a rear end adapted to be brought into elastic and electrical contact with a second wire inserted into the second connector. The pair of first elastic terminals each have a rear end adapted to clamp a front end of one of the second conductive terminals.

Abstract: Embodiments of the present disclosure propose a display substrate, a method for manufacturing the same, and a display panel. In an embodiment, the display substrate includes a flexible substrate, the flexible substrate includes a bending region, the bending region has a first groove, wherein at least an inner wall of the first groove has a first flexible layer, at least one rib is provided on the first flexible layer at a bottom of the first groove, a wiring layer covers the rib on the first flexible layer, and the wiring layer has alternating protrusions and recessions, and an orthographic projection of the protrusions on the flexible substrate and an orthographic projection of the rib on the flexible substrate at least partially overlap.

Abstract: A connector includes a housing and an elastic latch. The elastic latch includes an elastic cantilever having a free end, a fixed end connected to the housing, and a main part extending between the free end and the fixed end. The fixed end has an inclined surface extending inclined with respect to a surface of the housing. An angle between the inclined surface and the surface of the housing is greater than 90 degrees.