Abstract: A system and method are provided for emulating an echo signal reflected from a diffuse target, having an indeterminate shape and range in a radar environment, in response to a frequency-modulated continuous-wave (FMCW) radar signal transmitted by a radar under test. The method includes receiving the FMCW radar signal from the radar under test, the FMCW radar signal having radar signal frequencies linearly modulated between a first frequency and a second frequency; generating a bandlimited noise-like signal having frequencies within predetermined frequency limits, and a spectral shape such that amplitudes of the noise-like signal vary in a predetermined manner with respect to the frequencies; mixing the noise-like signal with the received FMCW radar signal to provide an emulated echo signal reflected from the diffuse target; and transmitting the emulated echo signal of the diffuse target to the radar under test.

Abstract: An autonomous mobile device (AMD) may move around a physical space while performing tasks. The AMD may have sensors with a field of view (FOV) facing forward. As the AMD moves forward, a safe region is determined based on data from those forward-facing sensors. The safe region describes a geographical area that is clear of obstacles during recent travel. If the AMD moves outside of the FOV, such as moving backwards, a check is made as to whether the AMD remains within the safe region. If a portion of the AMD moves beyond the safe region, the AMD stops. This prevents the AMD from colliding with obstacles that are outside of the safe region and also outside of the FOV while moving.

Abstract: A converged radio unit (RU) configured for semantic-less retransmissions comprises a radio-frequency machine learning (RFML) radio unit (RFML RU) and a radio-access network (RAN) radio unit (RU). The RFML RU may be configured to receive an RF signal comprising a packet, decode a PHY layer preamble of the packet, and apply a machine-learning (ML) model to information obtained from only the PHY layer preamble to classify the packet. When the packet is classified be a tactical data link (TDL) packet based on the information obtained only from the PHY layer preamble, the RFML RU may retransmit the packet. When the packet is classified a RAN protocol packet, the RFML RU may be configured to signal the RAN RU to process the RAN protocol packet in accordance with a RAN protocol.

Abstract: A system (100), electromagnetic actuator (102) and track (101) for braking are provided. The actuator (102) includes pole portions (109) extending from back-iron portions. Respective longitudinal axes (104) of the pole portions (109) are arranged about parallel to one another and about perpendicular to a common movement axis (104). A pole pitch of the pole portions (109) is selected to induce eddy currents in a segmented track (101), such that the eddy currents are present in a skin depth at more than one surface of segments (105) of the segmented track (101) when the pole portions (109) are moving at given speeds. Eddy current generated losses occupy about an entirety of a volume of a segment (105) of the track (101) below a given intermediate speed, and the eddy current generated losses occupy at least one third of the volume of the segment (105) at a given maximum speed greater than the given intermediate speed. Individually controllable electrical windings are around respective pole portions (109).

Abstract: This invention pertains to mutant Cas9 nucleic acids and proteins for use in CRISPR/Cas endonuclease systems, and their methods of use. In particular, the invention pertains to an isolated mutant Cas9 protein, wherein the isolated mutant Cas9 protein is active in a CRISPR/Cas endonuclease system, wherein the CRISPR/Cas endonuclease system displays reduced off-target editing activity and maintained on-target editing activity relative to a wild-type CRISPR/Cas endonuclease system. The invention also includes isolated nucleic acids encoding mutant Cas9 proteins, ribonucleoprotein complexes and CRSPR/Cas endonuclease systems having mutant Cas9 proteins that display reduced off-target editing activity and maintained on-target editing activity relative to a wild-type CRISPR/Cas endonuclease system.

Abstract: This disclosure describes, in part, techniques for using multiple passive infrared sensors to determine a distance to an object. For instance, an electronic device may include a first passive infrared sensor including a first FOV that extends a first distance from the electronic device and a second passive infrared sensor including a second FOV that extends a second distance from the electronic device further than the first distance. The electronic device may generate first sensor data using the first passive infrared sensor and second sensor data using the second passive infrared sensor. The electronic device may then determine a first amplitude associated with the first sensor data and a second amplitude associated with the second sensor data and determine a ratio between the amplitudes. After the ratio is determined, the electronic device may determine a distance associated with the ratio, generate image data based on the distance, and send the image data to computing device(s).

Abstract: A method for forming semiconductor structure includes: providing a semiconductor substrate, which at least includes discrete conducting layers in the semiconductor substrate; forming discretely arranged supporting structures on the semiconductor substrate, lower portions of the supporting structures including a bottom conducting layers, and capacitor openings being included between the supporting structures, and the bottom conducting layers being electrically connected with the conducting layers; forming lower electrodes on sidewalls of the supporting structures, the lower electrodes being electrically connected with the bottom conducting layers; forming a capacitor dielectric layer covering tops of the supporting structures, sidewalls of the lower electrodes, and bottoms of the capacitor openings; and forming an upper electrode covering the capacitor dielectric layer), to form a capacitor structure. A semiconductor structure is also provided.

Abstract: A method for forming a semiconductor structure includes: providing a substrate, in which a gate structure is formed on the substrate; forming first side walls covering side surfaces of the gate structure, in which the first side walls have a first preset thickness in a direction parallel to a plane of the substrate; performing first ion implantation on the substrate on both sides of the gate structure exposed to the first side walls; removing a part of the first side walls to form second side walls, in which the second side walls have a second preset thickness in the direction parallel to the plane of the substrate; and performing second ion implantation on the substrate on both sides of the gate structure, in which doping types of the first ion implantation and the second ion implantation are different.

Abstract: There is provided a wellbore measuring apparatus including a tubular outer body connectable in line with a drill string. The apparatus includes arms pivotally coupled to the body. Each arm has a retracted position and is moveable from the retracted position to an extended position so that a free end portion thereof is radially away from an outer surface of the body. The free end portions of the arms have rounded configurations. The arms are angularly spaced apart around the body and arranged in a plurality of tiers. Each tier includes three or more of the arms. The tiers are spaced apart axially from one another along the body. Each arm of a first tier is angularly offset relative to the arms of a second tier. The apparatus includes sensors operatively connected to the arms, respectively, and via which a profile of a wellbore is measured.

Abstract: Various illustrative aspects are directed to a data storage device including one or more disks, an actuator mechanism configured to position a selected head among one or more heads proximate to a corresponding disk surface among the one or more disks, the selected head comprising a write element and an assistive energy emitter, and one or more processing devices configured to, individually or in combination: apply an assistive energy current to the assistive energy emitter while refraining from applying a write current to the write element, and vary a level of the assistive energy current over time while refraining from applying the write current to the write element.

Abstract: Data about concentration of one or more types of molecules present within a human body are determined noninvasively using radio frequency signals. These signals at several different frequencies are generated at very low power levels are emitted and acquired using an antenna mounted to a wearable device. Information about changes to the signals, such as phase variances of the signals at different frequencies is indicative of the concentration of one or more types molecules within the user. The antenna includes concentric elements with one or more being used to emit the signal(s) while one or more are used to acquire the signal(s). Concentrations at different depths may be measured by selectively using particular concentric elements. A maximum depth may approximately equal the spacing between the elements being used at a given time. Other sensors may be emplaced or operate through windows located between one or more of the concentric elements.

Abstract: Embodiments provide a semiconductor structure and a fabricating method. The method includes: providing a substrate, where a plurality of active areas arranged at intervals are provided in the substrate, and the substrate is covered with an insulating layer and a barrier layer stacked sequentially; forming, in the barrier layer, a plurality of first trenches arranged at intervals and extending along a first direction and penetrating through the barrier layer; forming a filling layer in the first trenches, and forming a first mask layer on the barrier layer and the filling layer; forming, in the first mask layer, a plurality of second trenches arranged at intervals and extending along a second direction and exposing the filling layer; and removing the filling layer exposed in the second trench and the insulating layer corresponding to the filling layer to form contact holes.

Abstract: An integrated phase accumulator apparatus includes a first phase accumulator, a second phase accumulator, and a switch. The first phase accumulator is configured to accumulate a first phase increment over time and provide a first accumulated phase value for signal generation via a local oscillator at a first frequency. The second phase accumulator is configured to accumulate a second phase increment over time and provide a second accumulated phase value for signal generation via the local oscillator at a second frequency. The switch is configured to switch the integrated phase accumulation apparatus between the first frequency and the second frequency and between the second frequency and the first frequency so as to maintain a first continuous phase for the first frequency and a second continuous phase for the second frequency.

Abstract: Embodiments of the present application provide a memory array circuit, a memory array layout and a verification method. The memory array circuit includes: M word lines (WLs); M WL break nodes, each being configured to separate a corresponding one of the WLs into a first WL pin and a second WL pin; N bit lines (BLs); and N BL break nodes, each being configured to separate a corresponding one of the BLs into a first BL pin and a second BL pin, wherein the M and the N each are a positive even number.

Abstract: A semiconductor structure includes a substrate, a gate structure, a cover layer and a first sacrificial structure. The substrate includes discrete semiconductor channels arranged at a top of the substrate. The gate structure is disposed in a middle region of a semiconductor channel, and includes a ring structure and a bridge structure. The ring structure encircles the semiconductor channel, and the bridge structure penetrates through the semiconductor channel and extends to an inner wall of the ring structure along a penetrating direction. The cover layer is located between adjacent semiconductor channels, and includes a first communication hole. The first sacrificial structure is located on the cover layer, and includes a second communication hole. An inner sidewall of the second communication hole has an irregular shape.

Abstract: The disclosed embodiments provide techniques for generating a fuel score for a driver or vehicle. In one embodiment, a method is disclosed comprising generating a deviation vector based on recorded vehicle metrics for a given user, wherein the deviation vector comprises differences between recorded non-fuel metrics and expected non-fuel metrics; predicting, using a statistical learning (e.g., linear regression) model, deviation in fuel consumption amount using the deviation vector of non-fuel metrics; and computing a fuel score for the given user based on the deviation in fuel consumption and a current fuel score.

Abstract: Systems and methods are provide for detecting weld relay devices within a switching device by: closing one or more first relay devices, wherein the one or more first relay devices are configured to selectively connect and disconnect a first phase of electric power from a power source; opening one or more second relay devices and one or more third switches; detecting whether there is electric current through the one or more second relay devices; and in response to detecting that there is electric current through the one or more second relay devices, determining that the one or more second relay devices are welded.

Abstract: Various illustrative aspects are directed to a data storage device, method, and one or more processing devices that are configured to: estimate access times of a plurality of access commands included in a command queue of a disk drive containing the one or more disks; adjust a respective one of the access times of a respective one of the access commands based on the respective one of the access commands satisfying one of one or more conditions that indicate an increased likelihood of performing a pre-heating operation to heat a laser diode associated with a head of the disk drive; and select one of the access commands as a next command for execution in the disk drive based on the access times.

Abstract: A semiconductor structure includes: a Magnetic Random Access Memory (MRAM) cell, including a bottom electrode, a Magnetic Tunnel Junction (MTJ) stack and a top electrode; an insulating layer covering a sidewall partially and a top surface of the MRAM cell; a first dielectric layer, a stop layer and a second dielectric layer sequentially stacked on the insulating layer; and a top electrode contact hole penetrating through the second dielectric layer, the stop layer, the first dielectric layer and the insulating layer, and extending to the top electrode, where the top electrode contact hole includes a first portion and a second portion connected with each other in the stop layer, and a radial width of the second portion in contact with the top electrode is gradually decreased with an increase in a depth of the top electrode contact hole. Method for manufacturing the structure and semiconductor memory are also provided.

Abstract: Embodiments relate to the field of semiconductors, and provide a semiconductor structure and a method for fabricating the same. The semiconductor structure includes a first wafer and a second wafer. A surface of the first wafer has a first electrode plate, a first dielectric layer and a first dummy pad stacked in sequence to constitute a capacitor; and the surface of the first wafer further has a first functional pad, and the first functional pad and the first dummy pad are arranged on a same layer. The second wafer is bonded to the first wafer, and a surface of the second wafer has a second dummy pad and a second functional pad arranged on a same layer. The first dummy pad is bonded to the second dummy pad, and the first functional pad is bonded to the second functional pad.