Abstract: The present application relates to a preparation method for a pyrrolopyrimidine compound, comprising: obtaining a compound 3 from a compound 2, obtaining a compound 4P2 from the compound 3, and obtaining a pyrrolopyrimidine compound of formula I by removing a protecting group from the compound 4P2. The preparation method of the present application has the advantages of simple operation, mild reaction conditions and high yield, avoids the problems of low yield and a large amount of impurities and difficult separation of same in original routes, reduces production costs, and is suitable for industrial production. Furthermore, the product yield of each step is high, and basically reaches about 80%, and even the yield of some steps can reach 90% or more.

Abstract: A laser processing method and a laser processing system are provided. The laser processing method includes: irradiating a processing area of a workpiece with an electromagnetic wave; and after irradiating the processing area of the workpiece with the electromagnetic wave, irradiating the processing area of the workpiece with a processing pulse.

Abstract: Generally this disclosure describes a video communication system that replaces actual live images of the participating users with animated avatars. A method may include selecting an avatar; initiating communication; detecting a user input; identifying the user input; identifying an animation command based on the user input; generating avatar parameters; and transmitting at least one of the animation command and the avatar parameters.

Abstract: A pen needle assembly apparatus includes a housing (30), a movable gripping assembly (32) for gripping a pen needle assembly (18), and an actuator (108). The housing (30) has a top end (34), a bottom end (36), and an inner cavity (38) for storing used pen needle assemblies. The gripping assembly (32) in one embodiment includes two movable jaws (58) that are movable to engage and grip the outer cover (22) of the pen needle assembly (18) so that the needle hub (16) can be separated from the outer cover (22) and placed back in the outer cover (22) after use of the pen needle. The actuator (108) is connected to the jaws (58) where movement of the actuator separates the jaws to release the outer cover of the pen needle assembly. The housing (30) has an opening 160) for engaging the inner shield (24) of the pen needle assembly to remove the inner shield (24) from the needle hub (16).

Abstract: A semiconductor structure includes a Schottky diode structure, which includes: a first trench extending through a first N-type semiconductor layer and being disposed in the first N-type semiconductor layer; a first insulating layer disposed in the first trench; two polysilicon layers or metal silicide layers disposed in the first trench, wherein an upper one and a lower one of the polysilicon layers or metal silicide layers are disposed in parallel; a first P-type protective layer, which is grounded and disposed on a bottom of the first trench, and contacts the first insulating layer and a bottom surface of the lower one of the polysilicon layers or metal silicide layers; a metal layer respectively disposed as a top surface and a lower bottom surface of the semiconductor structure to form a source and a drain as electrodes for the semiconductor structure to be connected to an external device.

Abstract: Examples of techniques for handling unsolicited probe responses are disclosed. In an example, occurrence of an attack on an access point (AP) in an enterprise Wireless Local Area Network (WLAN) is detected based on an unsolicited probe response and Robust Security Network Information Element (RSN IE). Responsive to detecting the attack, unsolicited probe responses at the AP is disabled. Further, Fast initial Link Setup (FILS) discovery at the AP is enabled.

Abstract: An ultrasonic imaging method and an ultrasonic imaging system are provided herein. The ultrasonic imaging system includes: a scanning assembly having an ultrasonic transducer to send ultrasonic signals to a tissue to be scanned and acquire a plurality of ultrasonic echo signals at a plurality of positions; a processor to receive the plurality of ultrasonic echo signals acquired at the plurality of positions, and generate an ultrasonic image corresponding to each of the plurality of positions; a display to display the ultrasonic images; and a user input unit to select the ultrasonic image corresponding to any specific position and send an input signal that is configured to control movement of the ultrasonic transducer, driven by a driving device, to the specific position. Also provided in the present invention is an ultrasonic imaging method using the system.

Abstract: A device and a method for contactless fingerprint acquisition is provided. The contactless fingerprint acquisition device includes a housing including a finger scanning area for at least one finger; at least two image capturing devices located in the housing and arranged in a predetermined baseline distance, each image capturing device having an optical axis in a predetermined angle with the vertical direction; and, a lighting unit in the housing for illuminating the at least one finger. The at least two image capturing devices are operable to acquire a plurality of partial fingerprint images of the at least one finger, and the plurality of partial fingerprint images correspond to different portions of the at least one finger.

Abstract: A semiconductor device includes an application processor (AP) die and a memory die directly bonded to the AP die. The memory die includes a substrate, a non-volatile memory structure on the substrate, and at least one trench capacitor in the substrate.

Abstract: A semiconductor package includes a first substrate, a second substrate, a conductive component, an electronic component and a passive component. The conductive component is disposed between the first substrate and the second substrate, wherein the first substrate and the second substrate are separated from each other by an interval. The electronic component and the passive component are disposed within the interval.

Abstract: A power supply apparatus is coupled to an AC power source, a critical load, and a general load. The power supply apparatus includes a UPS, a generator system, a power conversion system, and a controller. The power conversion system includes a first power conversion path and a second power conversion path. The first power conversion path is connected to the critical load and an output side, and the second power conversion path is connected to the general load and an input side. The first power conversion path and the second power conversion path are jointly connected to a DC bus. When the controller determines that the AC power source is abnormal, the controller controls disconnecting the AC power source, and activates the UPS to supply power to the critical load so as to enable the first power conversion path and disable the second power conversion path.

Abstract: A global computer aided engineering (CAE) model representing an electronic product that contains solder joints and an individual detailed solder joint model are received. The solder joint model can include a solder ball, one or more metal pads, a portion of printed circuit board, and a portion of semiconductor chip component. The global CAE model includes locations of the solder joints to be evaluated in a drop test simulation. The solder joint model is replicated at each location to create a local CAE model via a geometric relationship between the global CAE model and the local CAE model. Simulated physical behaviors of the product under a design condition are obtained in a co-simulation using the global CAE model in a first time scale and the local CAE model in a second time scale. Simulated physical behaviors are periodically synchronized based on kinematic and force constraints.

Abstract: Charging management methods and systems for electric vehicles are provided. First, a server receives a charging request from an electric vehicle charging station or a mobile device via a network. In response to the charging request, the server transmits a charging start instruction to the electric vehicle charging station via the network, and the electric vehicle charging station performs a charging operation to output power to an electric vehicle. The server enables the mobile device to have the ability to stop charging. The server determines whether the electric vehicle charging station stops outputting power to the electric vehicle. When the electric vehicle charging station stops outputting power to the electric vehicle, the server disables the ability of stop charging of the mobile device.

Abstract: A manufacturing method of a bicycle unit has the following steps. In a pressing step: press metal sheets to form casing parts being overlappable. In an abutting step: abut the casing parts to form an abutting line. In a connecting step: connecting the two casing parts along the abutting line to form a motor mount prestructure having side plates and a motor-installation space formed therebetween. A prestructure of a bicycle frame is thereby made. In a motor mount forming step: cut the two side plates of the motor mount prestructure in compliance with a pre-determined motor system so as to form a bicycle frame unit with a motor mount.

Abstract: A method of manufacturing an integrated circuit includes adjusting a first spacing between an adjacent pair of routing tracks in a first set of routing tracks to be equal to a second spacing, adjusting a third spacing between an adjacent pair of routing tracks in a second set of routing tracks to be equal to a fourth spacing, placing a first and second pair of conductive patterns on the corresponding first and second set of routing tracks, forming a first set of conductive structures based on the first pair of conductive patterns, and a second set of conductive structures based on the second pair of conductive patterns. A first and second cell have a same cell height that is a non-integer multiple of a minimum pitch. One spacing of a first set of spacings is different from another spacing of the first set of spacings.

Abstract: A method of controlling a power converter is provided. The power converter generates a three-phase output power by switching an input power through a plurality of switches. The method includes steps of: acquiring a three-phase output command corresponding to the three-phase output power; comparing the three-phase output command with a control carrier to acquire a voltage phase angle corresponding to the three-phase output command; acquiring a three-phase current value of the three-phase output power; detecting the voltage phase angle and a positive/negative change of the three-phase current value to decide a zero-sequence voltage; composing the zero-sequence voltage and the three-phase output command to acquire a three-phase output expected value; comparing the three-phase expected values with the control carrier to acquire a turned-on time of each switch; and switching the input power to adjust the three-phase output power according to the turned-on time of each switch.

Abstract: A method of clamping an output current of a three-phase power converter is provided. The three-phase power converter includes three switching bridge arms and provides a three-phase output voltage command, and each switching bridge arm has an upper switch and a lower switch connected in series. The method includes steps of: determining that the output current is greater than a first current threshold to activate a current clamping control procedure, comparing a carrier signal with the three-phase output voltage command to turn on the lower switches by a first zero vector when the carrier signal is rising and turn on the upper switches by a second zero vector when the carrier signal is falling, determining that the output current is greater than a second current threshold to activate an overcurrent protection procedure, wherein the second current threshold is greater than the first current threshold.

Abstract: An oar propulsion system having an oarlock attached to the rear of a standup paddle board (SUP) is used for manual propulsion of the board. The oarlock is structurally attached to the paddle board in a first embodiment, or remains removable in a second embodiment as a conversion kit. The oar shaft has a blade on one end and an exchangeable handle on the other end; the exchangeable handle may be replaced by a waist strap that is tied the paddler’s body for better stability and for steering while paddling.