Abstract: Certain aspects of the present disclosure provide methods and apparatus for generating an envelope tracking power supply voltage. For example, certain aspects of the present disclosure provide an envelope tracking power supply having a linear amplifier having an output coupled to a power supply node of an amplifier, wherein a power supply node of the linear amplifier is coupled to a first voltage supply node. The envelope tracking power supply may also include a switch mode power supply having an output coupled to the power supply node of the amplifier. Certain aspects also include a circuit having a first switch coupled to the first voltage supply node and a second switch coupled to a second voltage supply node, wherein a power supply node of the switch mode power supply is coupled to the first switch and the second switch.

Abstract: Disclosed are a method and a device for predicting business volume. The method includes: determining a prediction time and a historical time corresponding to the prediction time; acquiring historical payment data for a business provider; determining a number of historical payments for the business provider at the historical time on the basis of the historical payment data; and predicting business volume of the business provider at the prediction time on the basis of the number of historical payments.

Abstract: A method and apparatus for releasing evaluation information, in which the feature value corresponding to the object to be evaluated is determined according to the operation information actually occurred by the object to be evaluated, and the comparison value corresponding to the category is determined according to feature values of part or all objects whose category is the same as that of the object to be evaluated. Since the feature value and the comparison value are determined according to the operation information occurred actually without relying on the subjective evaluation of human in the present application, it is more accurate when comparing with the prior art.

Abstract: A master tool is provided with an ink pattern on a major surface thereof. The ink pattern is formed by a screen printing process. A stamp-making material is applied to the major surface of the master tool to form a stamp having a stamping pattern being negative to the ink pattern of the master tool. The stamping pattern is inked with an ink composition and contacted with a metalized surface to form a printed pattern on a metalized surface of a substrate according to the stamping pattern. Using the printed pattern as an etching mask, the metalized surface is etched to form electrically conductive traces on the substrate.

Abstract: Certain aspects of the present disclosure provide methods and apparatus for generating an envelope tracking power supply voltage. For example, certain aspects of the present disclosure provide an envelope tracking power supply having a linear amplifier having an output coupled to a power supply node of an amplifier, wherein a power supply node of the linear amplifier is coupled to a first voltage supply node. The envelope tracking power supply may also include a switch mode power supply having an output coupled to the power supply node of the amplifier. Certain aspects also include a circuit having a first switch coupled to the first voltage supply node and a second switch coupled to a second voltage supply node, wherein a power supply node of the switch mode power supply is coupled to the first switch and the second switch.

Abstract: Certain aspects of the present disclosure generally relate a regulator. For example, the regulator may include a control stage, a sense capacitor having first and second terminals, the first terminal coupled to an output of the voltage regulator, and a current amplifier having an input coupled to the second terminal of the sense capacitor and an output coupled to the control stage. The control stage of the regulator may adjust the output voltage of the regulator based at least in part on a current generated by the current amplifier.

Abstract: A glove for gesture identification, comprising a plurality of finger sleeves for encasing user's fingers, each of the finger sleeves comprising a plurality of sleeve sections, and each of the sleeve sections having at least one finger identification symbol disposed thereon; and a glove body for encasing user's palm, the glove body being attached to the finger sleeves, and having at least one hand identification symbol disposed thereon. With the arrangement of the finger identification symbols and the hand identification symbols, it assists to assure gesture identification to identify the palm side and the back side of the user's hand and the fingers and gestures more accurately and efficiently while the user wears the glove in this invention, and so as to simplify the processing process and improve the accuracy of gesture identification. In additional, the glove in this invention is made by a common glove, thus it is easy to wear.

Abstract: An integrated circuit is disclosed for current-controlled voltage regulation. In an example aspect, the integrated circuit includes a voltage regulator and a current-controlled clamp. The voltage regulator has a regulator output node and produces a regulator current. The voltage regulator includes an error amplifier and an output transistor. The error amplifier has first and second input nodes and an error amplifier output node, with the first input node coupled to a reference voltage. The error amplifier generates an error amplifier output voltage at the output node. The output transistor is coupled between the error amplifier output node and the regulator output node. The output transistor is coupled to the second input node via the regulator output node to establish a feedback path for the voltage regulator. The current-controlled clamp is coupled to the error amplifier output node and clamps the error amplifier output voltage based on the regulator current.

Abstract: A multiband antenna structure includes a matching portion, a first radiator, and a second radiator. The first radiator and the second radiator extend from a first edge of the matching portion. The second radiator and the matching portion resonate a first mode. The first radiator and the matching portion resonate a second mode. The slot, the first radiator, and the matching portion resonate a third mode. The second radiator includes a first connection section, a second connection section, a third connection section, and a fourth connection section. The first connection section is perpendicularly connected to a first end of the first edge. The second connection section is perpendicularly connected to the first connection section and extends parallel to the first edge. The third connection section is parallel to the first connection section. The fourth connection section is parallel to the second connection section.

Abstract: An integrated circuit is disclosed for current-controlled voltage regulation. In an example aspect, the integrated circuit includes a voltage regulator and a current-controlled clamp. The voltage regulator has a regulator output node and produces a regulator current. The voltage regulator includes an error amplifier and an output transistor. The error amplifier has first and second input nodes and an error amplifier output node, with the first input node coupled to a reference voltage. The error amplifier generates an error amplifier output voltage at the output node. The output transistor is coupled between the error amplifier output node and the regulator output node. The output transistor is coupled to the second input node via the regulator output node to establish a feedback path for the voltage regulator. The current-controlled clamp is coupled to the error amplifier output node and clamps the error amplifier output voltage based on the regulator current.

Abstract: A voltage regulator control implementation dynamically detects and sets specified headroom for a low dropout (LDO) regulator at different loads to enable the LDO regulator to maintain high performance in conjunction with improved power efficiency. In one instance, an upstream voltage regulator may adaptively adjust an output voltage supplied to an input supply rail of a downstream LDO regulator based on an indication from the LDO regulator. The adaptively adjusted input voltage enables the downstream LDO regulator to achieve high performance and improved power efficiency across the entire range of load conditions.

Abstract: Designs for touch sensor circuitry and touch sensor incorporating such circuitry are described. More particularly, touch sensor circuitry including multiple elongate electrodes that are interleaved with one another is described.

Abstract: Certain aspects of the present disclosure generally relate a dual feedback loop regulator. For example, the regulator may include a first amplifier having an output coupled to an output node of the regulator, the output node further coupled to a first feedback path and a second feedback path of the regulator. A first input of a second amplifier may be coupled to the first feedback path and a second input of the second amplifier may be coupled to a reference path. The regulator may also include a transconductance stage having a first transistor and a first current source, the first transistor and the current source coupled to the first feedback path and the second feedback path, and a transimpedance stage coupled to the transconductance stage and an input of the first amplifier.

Abstract: Certain aspects of the present disclosure generally relate a dual feedback loop regulator. For example, the regulator may include a first amplifier having an output coupled to an output node of the regulator, the output node further coupled to a first feedback path and a second feedback path of the regulator. A first input of a second amplifier may be coupled to the first feedback path and a second input of the second amplifier may be coupled to a reference path. The regulator may also include a transconductance stage having a first transistor and a first current source, the first transistor and the current source coupled to the first feedback path and the second feedback path, and a transimpedance stage coupled to the transconductance stage and an input of the first amplifier.

Abstract: The present invention relates to modified cancer cell lines, wherein the ST3Gal1 glycosyltransferase expression is reduced or inhibited. The use of the modified cancer cell lines with suppressed ST3Gal1 glycosyltransferase to screen a potential cancer therapeutic is provided. The suppression of ST3Gal1 glycosyltransferase expression, with or without an anti-cancer agent is also provided to inhibit the growth of cancer cells in a subject.

Abstract: A voltage regulator control implementation dynamically detects and sets specified headroom for a low dropout (LDO) regulator at different loads to enable the LDO regulator to maintain high performance in conjunction with improved power efficiency. In one instance, an upstream voltage regulator may adaptively adjust an output voltage supplied to an input supply rail of a downstream LDO regulator based on an indication from the LDO regulator. The adaptively adjusted input voltage enables the downstream LDO regulator to achieve high performance and improved power efficiency across the entire range of load conditions.

Abstract: Certain aspects of the present disclosure provide methods and apparatus for generating an envelope tracking power supply voltage. For example, certain aspects of the present disclosure provide an envelope tracking power supply having a linear amplifier having an output coupled to a power supply node of an amplifier, wherein a power supply node of the linear amplifier is coupled to a first voltage supply node. The envelope tracking power supply may also include a switch mode power supply having an output coupled to the power supply node of the amplifier. Certain aspects also include a circuit having a first switch coupled to the first voltage supply node and a second switch coupled to a second voltage supply node, wherein a power supply node of the switch mode power supply is coupled to the first switch and the second switch.

Abstract: Certain aspects of the present disclosure provide methods and apparatus for level shifting an input signal ranging between certain voltage levels to generate an output signal ranging between other voltage levels with low power, high speed, and immunity to noise. One example level-shifting circuit generally includes a node for receiving an input signal ranging between a first voltage level and a second voltage level, a first circuit path coupled to the node and configured to level shift the input signal to generate an output signal ranging between a third voltage level and a fourth voltage level, a pulse generator coupled to the node and configured to generate a pulse based on a transition in the input signal between the first and second voltage levels, and a second circuit path connected in parallel with the first path and configured to temporarily short the first path based on the generated pulse.

Abstract: An earphone able to function as a left or as a right earphone and receive sound channels accordingly comprises a processing unit, a capturing unit, and a touch sensor. The capturing unit gets images of ear canal. The touch sensor senses a first and second ear contact points. The processing unit applies sensor readings and captured images to an imaginary circle having a default radius, to determine whether earphone is being worn in the right or in the left ear. The output of sound can be channeled appropriately to an earphone in the left ear or in the right ear or both. A method and a system for detecting wearing state are also provided.

Abstract: A voltage regulator control implementation dynamically detects and sets specified headroom for a low dropout (LDO) regulator at different loads to enable the LDO regulator to maintain high performance in conjunction with improved power efficiency. In one instance, an upstream voltage regulator may adaptively adjust an output voltage supplied to an input supply rail of a downstream LDO regulator based on an indication from the LDO regulator. The adaptively adjusted input voltage enables the downstream LDO regulator to achieve high performance and improved power efficiency across the entire range of load conditions.