Abstract: A full bridge converter having a wide output voltage range includes an input power source, a full bridge switching circuit, a transformer, a first rectifying circuit, a second rectifying circuit, a first output circuit, a second output circuit, and a control circuit. The transformer includes a magnetic core, a primary side winding, a first secondary side winding, and a second secondary side winding. The first rectifying circuit includes a first AC switch, a second AC switch and a first freewheeling diode, and the second rectifying circuit includes a third AC switch, a fourth AC switch and a second freewheeling diode. The control circuit, according to a duty cycle, controls the first AC switch and the third AC switch to be turned on during a positive half cycle, and controls the second AC switch and the fourth AC switch to be turned on during a negative half cycle.

Abstract: A semi-blind channel estimation method and apparatus are provided. The semi-blind channel estimation method includes: step S1: obtaining data that includes a first training sequence and that is received by a receive end; step S2: performing minimum mean square error channel estimation based on the data and the prestored first training sequence, to obtain a channel parameter matrix; step S3: detecting the first training sequence by using a least square detection algorithm, to obtain estimated data; and step S4: using the estimated data as a second training sequence, replacing the first training sequence in step S2 with the second training sequence, and cyclically performing step S2 and step S3 on the second training sequence, until a channel parameter matrix obtained last time is the same as a channel parameter matrix obtained this time, and then stopping circulation, to estimate a final channel parameter matrix.

Abstract: A time-interleaved noise-shaping successive-approximation analog-to-digital converter (TI NS-SAR ADC) is shown. A first successive-approximation channel has a first set of successive-approximation registers, and a first coarse comparator operative to coarsely adjust the first set of successive-approximation registers. A second successive-approximation channel has a second set of successive-approximation registers, and a second coarse comparator operative to coarsely adjust the second set of successive-approximation registers. A fine comparator is provided to finely adjust the first set of successive-approximation registers and the second set of successive-approximation registers alternately. A noise-shaping circuit is provided to sample residues of the first and second successive-approximation channels for the fine comparator to finely adjust the first and second sets of successive-approximation registers.

Abstract: A semiconductor package structure is provided. The semiconductor package structure includes a semiconductor die surrounded by a first molding compound layer. A redistribution layer (RDL) structure is formed on a non-active surface of the semiconductor die and the first molding compound layer. A second molding compound layer is formed on the RDL structure. An insulating capping layer covers the second molding compound layer. An antenna is electrically coupled to the semiconductor die and includes a first antenna element formed in the RDL structure and a second antenna element formed between the second molding compound layer and the insulating capping layer.

Abstract: A semiconductor structure includes a first P-well, a first P-type diffusion region, a first N-type diffusion region, a second P-type diffusion region, and a first poly-silicon layer. The first P-type diffusion region is deposited in the first P-well and coupled to a first electrode. The first N-well is adjacent to the P-well. The first N-type diffusion region is deposited in the first N-well. The second P-type diffusion region is deposited between the first P-type diffusion region and the first N-type diffusion region, which is deposited in the first N-well. The second P-type diffusion region and the first N-type diffusion region are coupled to a second electrode. The first poly-silicon layer is deposited on the first P-type diffusion region.

Abstract: A battery-free electric mosquito swatter, comprising a flat swatting portion (1), a handle (2), a control circuit board (3), and a mechanical energy-based power generation device (5). The flat swatting portion (1) consists of a swatter frame and a swatter net. The flat swatting portion (1) is connected to the handle (2), the control circuit board (3) and the mechanical energy-based power generation device (5) are disposed within the handle (2), and the swatting net and the mechanical energy-based power generation device (5) are electrically connected to the control circuit board (3). The mechanical energy-based power generation device (5) comprises a hand squeeze member (51), a gear transmission mechanism, and a power generator (57). The hand squeeze member (51) is provided with a curved gear rack (511) meshing with an input gear of the gear transmission mechanism. An output gear of the gear transmission mechanism drives a rotating shaft of a rotor of the power generator (57) to rotate.

Abstract: A three-dimensional ultrasonic imaging method includes transmitting an ultrasonic wave to a fetal head; receiving an ultrasonic echo, obtaining an ultrasonic echo signal, and obtaining the three-dimensional volume data of the fetal head according to the ultrasonic echo signal; according to the characteristics of a median sagittal section of the fetal head, detecting the median sagittal section in the three-dimensional volume data; and displaying the median sagittal section.

Abstract: A semiconductor device includes a compound semiconductor layer disposed on a substrate, a protection layer disposed on the compound semiconductor layer, and a source electrode, a drain electrode and a gate electrode penetrating the protection layer and on the compound semiconductor layer, wherein the gate electrode is disposed between the source electrode and the drain electrode. The semiconductor device also includes a plurality of field plates disposed over the protection layer and between the gate electrode and the drain electrode, wherein the plurality of field plates are separated from each other. A method for fabricating the semiconductor device is also provided.

Abstract: A semiconductor device includes a memory macro having first and second well pick-up (WPU) areas along first and second edges of the memory macro, respectively, and memory bit areas between the first and the second WPU areas. The first and second WPU areas are oriented lengthwise generally along a first direction. In each of the first and second WPU areas, the memory macro includes n-type wells and p-type wells arranged alternately along the first direction with a well boundary between each of the n-type wells and the adjacent p-type well. The memory macro further includes active regions; an isolation structure; gate structures, and a first dielectric layer that is disposed at each of the well boundaries. From a top view, the first dielectric layer extends generally along a second direction perpendicular to the first direction and through all the gate structures in the first and the second WPU areas.

Abstract: A downlink data notification message sending method and apparatus are disclosed. In an embodiment a method includes receiving, a delay instruction from a mobility management network element, which is used to instruct a control plane network element to delay sending a DDN message, receiving, an event report message includes a reported event from a user plane network element, and the reported event is used to notify the control plane network element that a downlink data packet sent to UE matches no bearer, determining, that the UE is registered in the mobility management network element, and if the control plane network element has not received, within a first time period, routing information of a base station, sending, the DDN message to the mobility management network element when the first time period expires.

Abstract: Pharmaceutical composition comprising antibodies or antigen binding fragments thereof that bind to stage-specific embryonic antigen 4 (SSEA-4) are disclosed herein, as well as methods of use thereof. Methods of use include, without limitation, cancer therapies and diagnostics. The antibodies of the disclosure can bind to certain cancer cell surfaces. Exemplary targets of the antibodies disclosed herein can include carcinomas, such as breast cancer, lung cancer, esophageal cancer, rectal cancer, biliary cancer, liver cancer, buccal cancer, gastric cancer, colon cancer, nasopharyngeal cancer, kidney cancer, prostate cancer, ovarian cancer, cervical cancer, endometrial cancer, pancreatic cancer, testicular cancer, bladder cancer, head and neck cancer, oral cancer, neuroendocrine cancer, adrenal cancer, thyroid cancer, bone cancer, skin cancer, basal cell carcinoma, squamous cell carcinoma, melanoma, and/or brain tumor.

Abstract: A sulfonamide pharmaceutical composition. The present invention relates to a sulfonamide compound injectable preparation comprising a sulfonamide compound or a derivative thereof. The injectable preparation is prepared from the sulfonamide compound and a pharmaceutically acceptable carrier through certain preparation technologies. The sulfonamide compound injectable preparation involved in the present invention is stable and controllable in quality and effective.

Abstract: A wireless transmission performance test system is provided, configured to test wireless transmission performance of a device under test (DUT) which is disposed in a testing chamber. The wireless transmission performance test system includes a directional antenna and a control device. The directional antenna is disposed inside the testing chamber and adjacent to the DUT to receive testing signal generated by the DUT after testing. The signal coupling direction of the directional antenna is directed to the DUT. The control device is configured to receive the testing signal transmitted from the directional antenna, process the testing signal, and generate testing result. A wireless transmission performance test method is also provided herein.

Abstract: An air mover is provided. The air mover includes a housing, a spacer, a co-axial motor, a first fan and a second fan. The housing includes a first housing member and a second housing member. A first inlet, a second inlet and an outlet are formed on the housing. The first inlet is formed on the first housing member and the second inlet is formed on the second housing member. The spacer is disposed between the first housing member and the second housing member. The co-axial motor includes a shaft, wherein the co-axial motor is disposed on the spacer. The shaft includes a first free end and a second free end. The first free end extends in a first direction, and the second free end extends in a second direction.

Abstract: A foldable mobile terminal and related products include: a flexible display screen; a housing assembly including a first housing and a second housing, the flexible display screen being provided on the first housing and the second housing; a first rotating assembly that is at least partially received in the first housing and can extend or retract with respect to the first housing in a sliding manner, the first rotating assembly being provided with a first groove; a second rotating assembly that is at least partially received in the second housing and can extend or retract with respect to the second housing in a sliding manner; and a first roller and a first spring provided between the first rotating assembly and the first housing.

Abstract: A power combiner/divider circuit can be structured having a base structure with the addition of an odd-mode capacitor and a low pass network at an end of the base structure or structured having a base structure with the addition of an inductor and a high pass network at an end of the base structure. The power combiner/divider circuit can be implemented as a port coupled to multiple ports with low pass networks or high pass networks arranged at the ends of paths to the multiple ports. In embodiments using low pass base structures or low pass networks coupled to the base structures, inductors in such low pass sections can be positively coupled on a pair-wise basis.

Abstract: Certain embodiments involve learning features of content items (e.g., images) based on web data and user behavior data. For example, a system determines latent factors from the content items based on data including a user's text query or keyword query for a content item and the user's interaction with the content items based on the query (e.g., a user's click on a content item resulting from a search using the text query). The system uses the latent factors to learn features of the content items. The system uses a previously learned feature of the content items for iterating the process of learning features of the content items to learn additional features of the content items, which improves the accuracy with which the system is used to learn other features of the content items.