Abstract: A communications method of a wearable device, a communications system, and a related device are disclosed, which are applied to a communications technology field. In the communications method of a wearable device, if a second BLUETOOTH connection between user equipment and the wearable device is disconnected, a first BLUETOOTH connection between a network connection device and the wearable device is established, so that the network connection device may send, to the wearable device through the first BLUETOOTH connection, first information sent by the user equipment through a third communication connection to the network connection device. In this way, indirect communication between the user equipment and the wearable device is implemented by using the network connection device, so that the user equipment and the wearable device are not limited by a communication range.

Abstract: After forming source/drain contact openings to expose portions of source/drain regions composed of an n-doped III-V compound semiconductor material, surfaces of the exposed portions of the source/drain regions are cleaned to remove native oxides and doped with plasma-generated n-type dopant radicals. Semiconductor caps are formed in-situ on the cleaned surfaces of the source/drain regions, and subsequently converted into metal semiconductor alloy regions. Source/drain contacts are then formed on the metal semiconductor alloy regions and within the source/drain contact openings.

Abstract: The present disclosure relates to an identity authentication method and a communications terminal. One example method includes: performing, by a terminal, first identity authentication on first user identity feature data; if the first identity authentication succeeds, and the wearable device is in a valid worn state, when receiving an access request for a preset application, obtaining, by the terminal, a service security level of the preset application, and obtaining an authentication time point for second identity authentication and matching accuracy of the second identity authentication; determining whether a difference between a current time point and the authentication time point is less than authentication validity duration corresponding to the service security level and whether the matching accuracy is higher than lowest matching accuracy corresponding to the service security level; and if yes, accepting the access request.

Abstract: Disclosed herein are systems and methods for reducing intermodulation distortion (IMD) in switches using parallel distorter circuits. A switch circuit can include having a switch arm and a distorter arm that is configured to act as a compensation circuit to compensate for non-linearities in the switch arm. The switch circuit can include a plurality of FETs in the switch arm configured to provide switching functionality. The distorter arm is configured to compensate for a non-linearity effect generated by the FETs of the switch arm when it is in an ON state. The distorter arm is configured to compensate for the non-linearity effect generated by the switch arm independent of the frequency of the signal received by the switch arm. Various configurations of switch arms and distorter arms can be implemented to reduce harmonic distortion as well as intermodulation distortion.

Abstract: An interaction method in a call and a device, where the method includes displaying a voice assistant icon on a call screen of the wearable device when a phone number of a communication peer device is a service number converting received voice information into a dual tone multi frequency (DTMF) tone when the voice assistant icon is activated, and sending the DTMF tone to the communication peer device. Therefore, in a process of making or answering a service call using the wearable device, under a specific trigger condition, voice information of a user is converted into a DTMF tone to be sent to the communication peer device. In this way, when the user needs to enter a digit or a symbol in a call process, it can be ensured that the user enters correct information, and user experience is improved.

Abstract: An impedance chip detection system for biological testing includes a sensor and a portable detector. The sensor includes an absorbing layer, a sensing layer, and a transmitting layer, and the detector includes a detection slot, a control module provided for an impedance measurement and calculation of a specimen, and a display module for displaying a detection result of the specimen, so that after the sensor is plugged into the detection slot, the sensor performs an impedance measurement and calculation of the specimen and the detector displays the detection result.

Abstract: An IEEE 802.11p protocol-based vehicle-to-roadside and vehicle-to-vehicle communication test method oriented to the Internet of Vehicles. The method includes: driving a host vehicle and a target vehicle at a same speed on a road segment; the host vehicle being located behind the target vehicle; a constant distance is maintained between the host vehicle and the target vehicle; the host vehicle is equipped with a host vehicular communication unit, the target vehicle is equipped with a target vehicular communication unit communicating with the host vehicular communication unit; calculating a throughput and a round trip time RTT from the target vehicular communication unit to the host vehicular communication unit; repeating driving the host vehicle and target vehicle N times, and calculating an average throughput and an average round trip time (RTT) of the N times; and calculating a network performance parameter ? according to the average throughput and the RTT.

Abstract: In semiconductor switches, the isolation can be limited by the capacitive coupling between the switch input and the switch output. Ultra-high isolation can be achieved by adding a coupled transmission line to the semiconductor switch. The coupled transmission line introduces inductive coupling, which cancels at least a part of the capacitive coupling between the switch input and the switch output.

Abstract: A linearization circuit reduces intermodulation distortion in an amplifier that includes a first stage and a second stage. The linearization circuit receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency, generates an envelope signal based at least in part on a power level of the first signal, and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal, the first stage receives the adjusted signal, and the second stage does not receive the adjusted signal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation between the first frequency and the second frequency from the output of the amplifier.

Abstract: A linearization circuit that reduces intermodulation distortion in an amplifier output receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency. The linearization circuit generates an envelope signal based at least in part on a power level of the first signal and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal and the adjusted signal at a second terminal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation products that result from the intermodulation of the first frequency and the second frequency.

Abstract: Techniques for void reduction in phase change memory (PCM) devices are provided. In one embodiment, the system is provided that comprises a PCM device comprising a first electrode and a second electrode. The system can further comprise a first connector coupled to the first electrode and that applies a negative voltage to the first electrode, and a second connector coupled to the second electrode and that applies a ground voltage to the second electrode, wherein applying the negative voltage to the first electrode and applying the ground voltage to the second electrode comprises negatively biasing the PCM device. The system can further comprise the first connector applying the positive voltage to the first electrode, and the second connector applying a ground voltage to the second electrode, wherein applying the positive voltage to the first electrode and applying the ground voltage to the second electrode comprises positively biasing the PCM device.

Abstract: Laundry appliances use machine learning models and/or personalization to provide better treatments. As one example, a laundry appliance has a chamber in which laundry items are placed for treatment. Sensor(s) are positioned to sense contents of the chamber or to sense the laundry items as they are loaded into the chamber. The machine learning model uses data from these sensors to determine various attributes of the laundry items and/or the treatment, such as the type of fabric and/or how dirty the items are, and the treatment process is controlled accordingly. Personalized data, such as an individual's preferences for laundry treatments or his sensitivities and allergies, may also be used to personalize the treatment process.

Abstract: Disclosed are multilayer films which can provide desired low-temperature bag drop performance suited for laminate freezer film packaging.

Abstract: A structure includes a semiconductor substrate, a semiconductor buffer layer disposed over the semiconductor substrate, an oxide layer disposed over the buffer layer, and a fin including a semiconductor material disposed over the oxide layer. The semiconductor material has an oxidation rate different from an oxidation rate of the buffer layer.

Abstract: A device, and an adjustable parameter adjustment method for a device, where the device includes a touchscreen, and the touchscreen includes a touch sensor and a fingerprint sensor. A processor first adjusts a value of an adjustable parameter to a first value according to touch input of a user on the touch sensor, then receives accurate fingerprint input using the fingerprint sensor, and accurately adjusts the value of the adjustable parameter from the first value to a second value according to the fingerprint input in order to facilitate use for the user.

Abstract: pHEMT-based switch circuits, devices including same, and methods of improving the linearity thereof. In one example, an antenna switch module includes a pHEMT switching circuit connected in series between an input signal terminal and a load terminal, the pHEMT switching circuit including at least one pHEMT configured to produce a first harmonic signal at the load terminal responsive to being driven by an input signal of a fundamental frequency received at the input signal terminal, the first harmonic signal having a first phase, and a gate resistance circuit connected to a gate of the at least one pHEMT and having a resistance value selected to produce a second harmonic signal at the load terminal, the second harmonic signal having a second phase opposite to the first phase.

Abstract: A device selection method and apparatus is disclosed, where the method includes: responding, by a control device, to a selection operation of a user, and determining a pointing direction of the control device and/or a deflection angle of the control device according to sensing data collected by a sensor of the control device; and determining, according to the pointing direction of the control device and/or the deflection angle of the control device, a home network device selected by the user, so that a correctness rate of home network device selection is increased effectively.

Abstract: Various implementations enable management of parasitic capacitance and voltage handling of stacked integrated electronic devices. Some implementations include a radio frequency switch arrangement having a ground plane, a stack and a first solder bump. The stack is arranged in relation to the ground plane, and includes switching elements coupled in series with one another, and a first end of the stack includes a respective terminal of a first one of the plurality of switching elements. The first solder bump is coupled to the respective terminal of the first one of the plurality of switching elements such that at least a portion of the first solder bump overlaps with one or more of the plurality of switching elements, an overlap dimension set in relation to a first threshold value in order to set a respective contribution to a parasitic capacitance of the radio frequency switch arrangement.

Abstract: A communications method of a wearable device, a communications system, and a related device are disclosed, which are applied to a communications technology field. In the communications method of a wearable device, if a second Bluetooth connection between user equipment and the wearable device is disconnected, a first Bluetooth connection between a network connection device and the wearable device is established, so that the network connection device may send, to the wearable device through the first Bluetooth connection, first information sent by the user equipment through a third communication connection to the network connection device. In this way, indirect communication between the user equipment and the wearable device is implemented by using the network connection device, so that the user equipment and the wearable device are not limited by a communication range.

Abstract: In semiconductor switches, the isolation can be limited by the capacitive coupling between the switch input and the switch output. Ultra-high isolation can be achieved by adding a coupled transmission line to the semiconductor switch. The coupled transmission line introduces inductive coupling, which cancels at least a part of the capacitive coupling between the switch input and the switch output.