Abstract: According to at least one aspect, a controller having a mode of operation including one of an on mode and an off mode is provided including a voltage supply node, a mode of operation signal node, a powered component, a switching device coupled in series between the voltage supply node and the powered component, a power supply detector coupled to the switching circuit, the voltage supply node, and the mode of operation signal node, the power supply detector being configured to receive a mode of operation signal indicative of the mode of operation of the controller from the mode of operation signal node, determine that the controller is in the off mode based on the mode of operation signal, and control the switching device to prevent a current from passing from the voltage supply node to the powered component responsive to determining that the controller is in the off mode.

Abstract: Methods and systems are provided for generating an oscillating signal for use as a clock in digital logic timing. The oscillating signal is generated via a differential RC relaxation oscillator including an oscillator core and biasing circuitry. The oscillator core may be configured such that the oscillating signal it generates is substantially sinusoidal or pseudo-sinusoidal and contains less harmonic content relative to a square wave signal. The biasing circuitry may be configured to have a reduced dependence on temperature so that the biasing values it provides vary less with temperature.

Abstract: A sensor including: a substrate including a first surface and a second surface opposing to each other, the first surface being recessed to form a first groove, and the substrate further including at least two through holes penetrating through the second surface and a bottom surface of the first groove; a dielectric layer disposed to cover the first surface, and opposing to the first groove; a metal layer disposed on the bottom surface of the first groove and avoiding openings of the through holes on the bottom surface of the first groove, wherein the dielectric layer, the metal layer and an interval between the dielectric layer and the metal layer form a slit optical waveguide; and a grating formed on the dielectric layer, wherein the grating is used to implement wave vector matching of an incident light with a mode of the slit optical waveguide.

Abstract: A sensor including: a substrate including a first surface and a second surface opposing to each other, the first surface being recessed to form a first groove, and the substrate further including at least two through holes penetrating through the second surface and a bottom surface of the first groove; a dielectric layer disposed to cover the first surface, and opposing to the first groove; a metal layer disposed on the bottom surface of the first groove and avoiding openings of the through holes on the bottom surface of the first groove, wherein the dielectric layer, the metal layer and an interval between the dielectric layer and the metal layer form a slit optical waveguide; and a grating formed on the dielectric layer, wherein the grating is used to implement wave vector matching of an incident light with a mode of the slit optical waveguide.

Abstract: Circuits, systems, and methods to automatically switch modes to provide constant reference voltages are discussed herein. For example, a bandgap reference system may include a first bandgap reference circuit configured to provide a first bandgap reference voltage, a low dropout regulator coupled to the first bandgap reference circuit, a temperature circuit coupled to the low dropout regulator, and a second bandgap reference circuit coupled to the low dropout regulator and the temperature circuit. The second bandgap reference circuit may be configured to configure one or more impedance elements based at least in part on a temperature signal and provide a second bandgap reference voltage based on one or more currents that pass through the one or more impedance elements.

Abstract: Low leakage current switch controller. In some embodiments, a controller for a radio-frequency switch can include a low-dropout regulator configured to generate a plurality of reference voltage levels for operation of a switch, or to be in a sleep mode to conserve power, based on a control signal received through a common input node. The controller can further include a mode detector in communication with the low-dropout regulator, and be configured to provide a first form of the control signal to the common input node to allow the plurality of reference levels to be generated by the low-dropout regulator, or a second form of the control signal to the common input node to put the low-dropout regulator in the sleep mode.

Abstract: The disclosure provides a circuit structure including a first flexible insulating layer, a plurality of wires, and a second flexible insulating layer. The wires are stacked in parallel on the first flexible insulating layer. The second flexible insulating layer is stacked on the wires and has at least one insulating-layer opening from which a part of at least one of the wires is exposed.

Abstract: A front-end module comprises a low-dropout (LDO) voltage regulator, a reference current generator, a power amplifier, and a voltage reference configured to provide a reference voltage to the LDO voltage regulator and the reference current generator. The LDO voltage regulator, reference current generator, power amplifier, and voltage reference are integrated on a first semiconductor die.

Abstract: A front-end module comprises a bias network including a current mirror, a junction temperature sensor, an n-bit analog-to-digital converter, an n-bit current source bank configured to automatically set reference current levels for one or more operating temperature regions, and a power amplifier. The bias network, junction temperature sensor, n-bit analog-to-digital converter, n-bit current source bank, and power amplifier are integrated on a first semiconductor die.

Abstract: A method of forming a part from sheet metal and a part formed by said method. The method comprising the steps of: (a) heating a metal sheet to a temperature T; and (b) forming the sheet into the part between dies while applying cooling means to the sheet, where in step a) the metal sheet is heated at a rate of at least 50° C.s?1, and temperature T is above a critical forming temperature and does not exceed a critical microstructure change temperature of said metal sheet.

Abstract: Systems and methods for suppressing transient outputs from an amplifier system are provided. An amplifier having a plurality of bias levels may be controlled to initiate a change in the level of a bias signal provided to the amplifier. The level of the bias signal is ramped from an initial bias level to a final bias level over numerous steps. The steps include at least one step in which the level of the bias signal is between the initial bias level and the final bias level. An amplifier system having multiple stages may be controlled to enable each stage and selectively couple each stage in a sequence that couples an output stage to an output terminal at the completion of the sequence.

Abstract: Methods and systems are provided for generating an oscillating signal for use as a clock in digital logic timing. The oscillating signal is generated via a differential RC relaxation oscillator including an oscillator core and biasing circuitry. The oscillator core may be configured such that the oscillating signal it generates is substantially sinusoidal or pseudo-sinusoidal and contains less harmonic content relative to a square wave signal. The biasing circuitry may be configured to have a reduced dependence on temperature so that the biasing values it provides vary less with temperature.

Abstract: An infant bottle is provided. The infant bottle comprises an open-top receptacle for receiving liquid, a nipple sealably connectable to the open-top end of the receptacle, a formula compartment disposed adjacent the open-top end of the receptacle, an open-top end of the formula compartment corresponding and fitted within the open-top end of the receptacle, and a formula release mechanism to empty the contents contained in the formula compartment into the receptacle. A removable warming cover substantially covering at least a portion of the outer surface of the receptacle and comprising a sleeve of material for receiving the receptacle, a base comprising a rechargeable battery, and a heating element operatively connected to the battery, is also provided. A method of using the same is also provided.

Abstract: Methods and systems are provided for generating an oscillating signal for use as a clock in digital logic timing. The oscillating signal is generated via a differential RC relaxation oscillator including an oscillator core and biasing circuitry. The oscillator core may be configured such that the oscillating signal it generates is substantially sinusoidal or pseudo-sinusoidal and contains less harmonic content relative to a square wave signal. The biasing circuitry may be configured to have a reduced dependence on temperature so that the biasing values it provides vary less with temperature.

Abstract: A speaker assembly includes a sound chamber, a speaker and a diaphragm. The speaker is set at one end of the sound chamber. The diaphragm is set at one side of the sound chamber. The sound chamber, the speaker and the diaphragm form a closed cavity, thus to reduce the high tone from the speaker to a mid-bass pitch. An electronic device using the speaker assembly is also provided.

Abstract: A guiding device to conduct a rechargeable device to a recharging station includes a motherboard and a microphone module. The microphone module is mounted on the motherboard and receives charging requests from the rechargeable device. The microphone module is configured to continuously transmit and update signals specifying a position of a predetermined charging area to the rechargeable device. The microphone module can identify a position of a sound source so as to guide the rechargeable device to the predetermined charging area. The microphone module can receive signals constituting charging request from any position throughout a full 360 degrees around the guiding device.

Abstract: Sprayable low-viscosity compositions have improved acoustic damping properties through the addition to the composition of a sterically hindered phenol, present in an amount from 9% to 18% by weight of the composition. In other embodiments, the sterically hindered phenol will have a melting point within the range from 60° C. to 250° C. and a molecular weight of 300 g/mol or less (but not 0).

Abstract: Methods and systems are provided for generating an oscillating signal for use as a clock in digital logic timing. The oscillating signal is generated via a differential RC relaxation oscillator including an oscillator core and biasing circuitry. The oscillator core may be configured such that the oscillating signal it generates is substantially sinusoidal or pseudo-sinusoidal and contains less harmonic content relative to a square wave signal. The biasing circuitry may be configured to have a reduced dependence on temperature so that the biasing values it provides vary less with temperature.

Abstract: Systems and methods for suppressing transient outputs from an amplifier system are provided. An amplifier having a plurality of bias levels may be controlled to initiate a change in the level of a bias signal provided to the amplifier. The level of the bias signal is ramped from an initial bias level to a final bias level over numerous steps. The steps include at least one step in which the level of the bias signal is between the initial bias level and the final bias level. An amplifier system having multiple stages may be controlled to enable each stage and selectively couple each stage in a sequence that couples an output stage to an output terminal at the completion of the sequence.

Abstract: A cable end connector and the method of making the same are disclosed. The connector includes a first contact module, a second contact module, a central grounding unit, a grounding means, and a shielding shell electrically connecting with the grounding means. The first contact module includes first contacts and a first insulator retaining the first contacts. The first insulator has a first tongue section and a first assembling section. The second contact module includes second contacts and a second insulator retaining the second contacts. The second insulator has a second tongue section and a second assembling section. The shielding shell has a front shell and a rear shell partially overlapped on the front shell. The front shell substantially encloses the first and the second tongue sections of the first and the second contact modules, the central grounding unit and the grounding means. The rear shell covers the first and the second assembling sections of the first and the second contact modules.