Abstract: A low-pass filter, a switching control circuit, a driving system, a chip and methods are disclosed. The low-pass filter performs digital differential-integral process on a voltage of an acquired analog signal and a predefined reference voltage to generate differential-integral signals, accumulates a count of the differential-integral signals, and convert the result to an analog signal. By performing differential-integral process accumulating a count of the differential-integral signals, a low-pass filtered signal is obtained in a way that solves the problem of low integrity of circuits in conventional driving systems, reduces the complexity of external circuits for such driving systems and increases their circuit stability.

Abstract: This application relates to a communication method and device. The communication method includes: determining, by a terminal device, whether the terminal device supports sending and/or receiving of a signal other than a first reference signal in a measurement process; and receiving, by the terminal device, only the first reference signal within a first time domain range when the terminal device does not support sending and/or receiving of the signal other than the first reference signal in the measurement process, where the first time domain range includes a first time domain symbol and a second time domain symbol, the first time domain symbol is a time domain symbol configured by a network device, and the second time domain symbol includes N time domain symbols before the first time domain symbol and/or N time domain symbols after the first time domain symbol.

Abstract: The communication method and the communications apparatus may be applied to the internet of vehicles, for example, V2X, LTE-V, and V2V. The method includes: A first terminal apparatus determines a scaling factor based on a subcarrier spacing of a first time-frequency resource to be used to send first data and/or a quantity of slots occupied by the first time-frequency resource. The first data is to-be-sent data of the first terminal apparatus, and the first time-frequency resource occupies a single slot or a plurality of consecutive slots. Then, the first terminal apparatus determines, based on the scaling factor, a size of a transmission block carrying the first data, and sends the transmission block carrying the first data to a second terminal apparatus on the first time-frequency resource.

Abstract: A joint assembly for a truss bottom plate, the truss bottom plate includes a first bottom plate and a second bottom plate adjacent to each other, and a gap exists at an adjacent position between the first bottom plate and the second bottom plate; the joint assembly includes a first barrier plate and a second barrier plate; the first barrier plate is connected with the first bottom plate; the second barrier plate is connected with the second bottom plate; a part of the first barrier plate is arranged to overlap a part of the second barrier plate and cover the gap. A truss of an escalator or a passenger conveyor, the truss of the escalator or the passenger conveyor includes the joint assembly as described above.

Abstract: A control circuit, a chip and a control method are disclosed. The control circuit includes: an adjustment signal generation unit configured to detect an electrical signal reflecting a power supplied to a load under control of a current value of a reference signal, generate a feedback signal and output an adjustment signal based on both the feedback signal and the reference signal; and a control unit coupled to the adjustment signal generation unit and configured to control the switching circuit on and off based on the adjustment signal. With the generated adjustment signal that reflects a change in an adjustment metric indicated in the reference signal, the control circuit and the driving system can be adapted in real time to the specifications of any AC power standard. Moreover, much more granular adjustments can be made in the power supplied to the load.

Abstract: A low-pass filter, a switching control circuit, a driving system, a chip and methods are disclosed. The low-pass filter performs digital differential-integral process on a voltage of an acquired analog signal and a predefined reference voltage to generate differential-integral signals, accumulates a count of the differential-integral signals, and convert the result to an analog signal. By performing differential-integral process accumulating a count of the differential-integral signals, a low-pass filtered signal is obtained in a way that solves the problem of low integrity of circuits in conventional driving systems, reduces the complexity of external circuits for such driving systems and increases their circuit stability.

Abstract: The present disclosure provides a protection circuit, a drive system, a chip and a circuit protection method, and a drive method. The protection circuit can be used in a circuit system in which a load is driven by a switch circuit, and acquire a voltage signal reflecting the voltage of a power supply bus on which the load located and generate a detection signal, and control the switch circuit to maintain a forcible non-conductive state within a protection period when detecting that the voltage of the detection signal satisfies a preset voltage warning condition. The present application solves the problem of circuit protection of DC-powered electronics in the prior art.

Abstract: The present disclosure provides a protection circuit, a drive system, a chip and a circuit protection method, and a drive method. The protection circuit can be used in a circuit system in which a load is driven by a switch circuit, and acquire a voltage signal reflecting the voltage of a power supply bus on which the load located and generate a detection signal, and control the switch circuit to maintain a forcible non-conductive state within a protection period when detecting that the voltage of the detection signal satisfies a preset voltage warning condition. The present application solves the problem of circuit protection of DC-powered electronics in the prior art.

Abstract: The present invention relates to the field of petroleum extraction equipment, and discloses a coiled tubing reel and a coiled tubing vehicle. The coiled tubing reel comprises a reel body assembly configured to wind a coiled tubing and a driving component configured to drive the reel body assembly, wherein, the reel body assembly comprises a reel body, a reel shaft, a transmission gear, and a first bearing block and a second bearing block that are oppositely arranged and spaced from each other, wherein the reel body is fixedly fitted on the reel shaft, the two ends of the reel shaft are rotatably arranged on the first bearing block and the second bearing block respectively, the transmission gear is fixed with respect to the reel shaft to drive the reel shaft to rotate, the driving component is fixedly arranged on the first bearing block and at least partially disposed inside the reel body, and the driving component comprises a driving gear that is engaged with the transmission gear.

Abstract: The present application discloses an ultraviolet (UV) mask device and a method for using the UV mask device. The UV mask device includes: a platform, configured for carrying a substrate thereon; a mask substrate, configured above the platform for fixing a mask corresponding to the substrate on the platform; and a light source array, configured above the mask substrate by a first distance and including a plurality of UV light-emitting diodes (UV LEDs) emitting light having a first single central wavelength.

Abstract: The present application discloses an ultraviolet (UV) mask device and a method for using the UV mask device. The UV mask device includes: a platform, configured for carrying a substrate thereon; a mask substrate, configured above the platform for fixing a mask corresponding to the substrate on the platform; and a light source array, configured above the mask substrate by a first distance and including a plurality of UV light-emitting diodes (UV LEDs) emitting light having a first single central wavelength.

Abstract: A USB charger, a mobile terminal, and a charging method are provided. The USB charger for charging a mobile terminal, includes a first logic control unit through which bidirectional communication is established between the USB charger and the mobile terminal, wherein the first logic control unit is configured to: send, to the mobile terminal, a first signal which includes a maximum output capability of the USB charger; receive, from the mobile terminal, a second signal which indicates magnitude of a voltage requested by the mobile terminal; and adjust a voltage output from the USB charger to be consistent with the voltage requested by the mobile terminal. Accordingly, the USB charger and the mobile terminal can communicate with each other through a single signal wire. Thus, the voltage output from the USB charger can be intelligently controlled, so as to charge the mobile terminal in a fast, safe, and simply way.

Abstract: A USB charger, a mobile terminal, and a charging method are provided. The USB charger for charging a mobile terminal, includes a first logic control unit through which bidirectional communication is established between the USB charger and the mobile terminal, wherein the first logic control unit is configured to: send, to the mobile terminal, a first signal which includes a maximum output capability of the USB charger; receive, from the mobile terminal, a second signal which indicates magnitude of a voltage requested by the mobile terminal; and adjust a voltage output from the USB charger to be consistent with the voltage requested by the mobile terminal. Accordingly, the USB charger and the mobile terminal can communicate with each other through a single signal wire. Thus, the voltage output from the USB charger can be intelligently controlled, so as to charge the mobile terminal in a fast, safe, and simply way.

Abstract: A device, a system and a chip for controlling charging, and a user terminal are provided. The device for controlling charging includes: a battery detection circuit, a charging control circuit, a charging circuit and a charging interface circuit, wherein the charging circuit is connected with a battery, the battery detection circuit, the charging control circuit and the charging interface circuit respectively; the battery detection circuit is adapted for obtaining a voltage value of the battery; the charging interface circuit is connected with a charging power supply; and the charging control circuit is adapted for transmitting a charging control signal for increasing a charging current of the charging power supply through the charging interface circuit when the battery detection circuit detects that the voltage value of the battery is lower than a preset threshold value. The device for controlling charging can improve charging speed when battery power is low.

Abstract: The present invention provides a method and a terminal for adjusting a hybrid automatic repeat request HARQ buffer size, and relates to the field of communications technologies. A rated HARQ buffer size of a code block is reduced according to a rated proportion; then it is determined whether the reduced HARQ buffer size falls in a preset threshold range; and if the reduced HARQ buffer size falls in the preset threshold range, only partial coded data is stored. In this way, it is ensured, by setting a rated proportion, that decoding performance of the reduced coded data does not degrade greatly, and further, setting a threshold range helps to limit conditions under which the HARQ buffer size can be reduced. Consequently, technical solutions provided by embodiments of the present invention can reduce the required HARQ buffer size while ensuring decoding performance.