Cirrus Logic Inc.

Hubbell Limited

Mytech Corporation

Other

Silicon Laboratories Inc.

Standard Microsystems Corporation

Vadim A Konradi

Jonathan David Williams

Matthew Beardsworth

Tejasvi Das

Siddharth Maru

Carl Lennart Ståhl

Thomas James Hartnagel

R Kurt Bender

Rong Hu

Anthony Stephen Doy

Aleksey Sergeyevich Khenkin

Hamid Sepehr

Douglas D Myron

Marco A Janko

Harsha Rao

Teemu Ramo

David R Welland

Jie Su

Gregory Charles Yancey

Chin Huang Yong

John J Fowler

Gerard L Cullen

Michael Sean Franklin

Anil Lal

Filippo Rossi

Timothy W Woytek

Parker Dorris

Todd J Blackman

Bruce G Williams

Michael Allan Kost

Emmanuel A Marchais

Willfred Goldschmidt

Lynn Russell Kern

Ning Li

Michael Allen Kost

Michael Kurek

Michael D Crane

Kyle Wilkinson

Aaron Treptow

Colin Campbell

Duncan Sherwood

Bill Diehl

Peter Foskey

Ben Leslie

A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure phase information and amplitude associated with the resistive-inductive-capacitive sensor, and a noise detection circuit communicatively coupled to the measurement circuit and configured to determine a presence of external interference in the system based on at least one of the phase information and the amplitude information.

Interference detection and mitigation in inductive sensor applications and dynamic adaptation based on real-time noise detection

A method of controlling a vibrational transducer, the method comprising: tracking a temperature metric of the vibrational transducer; and controlling a drive signal for the vibrational transducer, where the drive signal is limited to a value to protect the vibrational transducer from over excursion, and where said value is a function of the tracked temperature metric.

Vibrational transducer control

A method for determining and mitigating over-excursion of an internal mass of an under-damped electromechanical transducer may include transforming an electrical playback signal to an estimated displacement signal, based on the estimated displacement signal, determining an estimated over-excursion of the internal mass responsive to the electrical playback signal, and limiting, based on the estimated over-excursion, an electrical driving signal derived from the electrical playback signal and for driving the electromechanical transducer in order to mitigate over-excursion of the internal mass.

Determination and avoidance of over-excursion of internal mass of transducer

A method for determining and mitigating over-excursion of an internal mass of an electromechanical transducer may include measuring a sensed signal associated with the electromechanical transducer in response to a driving signal driven to the electromechanical transducer, determining a non-linearity value based on the sensed signal, mapping the non-linearity value to a probability of over-excursion of the internal mass, and applying a gain to a signal path configured to generate the driving signal based on the probability.

Detection and prevention of non-linear excursion in a haptic actuator

An integrated haptic system may include a digital signal processor and an amplifier communicatively coupled to the digital signal processor and integrated with the digital signal processor into the integrated haptic system. The digital signal processor may be configured to receive a force sensor signal indicative of a force applied to a force sensor and generate a haptic playback signal responsive to the force. The amplifier may be configured to amplify the haptic playback signal and drive a vibrational actuator communicatively coupled to the amplifier with the haptic playback signal as amplified by the amplifier.

Integrated haptic system

Compensation circuitry for compensating for a thermal effect in an output signal output by a force sensor may comprise monitoring circuitry configured to monitor one or more electrical parameters of the resistive force sensor and processing circuitry. The processing circuitry is configured to determine an absolute resistance value for the force sensor based on the one or more monitored electrical parameters and to adjust one or more operational parameters of the force sensor system based at least in part on the determined absolute resistance value.

Force sensing systems

A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency, and a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to determine a measured change in a resonant frequency of the resistive-inductive-capacitive sensor and based on the measured change, modify the driving frequency.

Auto-centering of sensor frequency of a resonant sensor

A method may include generating an electrical drive waveform associated with a target actuator by stretching or compressing a reference drive waveform associated with a reference actuator in a time domain of the reference drive waveform in accordance with a time adjustment factor, wherein the time adjustment factor is determined based on a difference between a resonant frequency of the target actuator and a resonant frequency of the reference actuator. The same or another method may include generating an electrical drive waveform associated with a target actuator by increasing or decreasing an amplitude of a reference drive waveform associated with a reference actuator in accordance with an amplitude adjustment factor, wherein the amplitude adjustment factor is determined based on a difference between a resonant frequency of the target actuator and a resonant frequency of the reference actuator.

Drive waveform adjustments to compensate for transducer resonant frequency

An airflow shaping enclosure is mounted to the rear of a cyclist riding a bicycle. The airflow shaping enclosure is wide at its front and tapers toward its rear, maintaining and shaping airflow streamlines behind the cyclist. The forward section of the airflow shaping enclosure is shaped to match the rear of the cyclist and to fill space behind the cyclist's buttocks, back, and calves. The rear section of the airflow shaping enclosure is shaped to form a streamlined extension of the cyclist's body. The airflow shaping enclosure fore-aft and height locations are adjustable to minimize the gap between the airflow shaping enclosure and the cyclist's buttocks, back, and thighs. The airflow shaping enclosure is configured to carry luggage.

Airflow shaping enclosure reducing drag behind cyclist

A controller for a capacitive touch screen or the like includes a touch resolve subsystem and a processor. The touch resolve subsystem, when activated, measures a plurality of capacitance values using a plurality of input pins. The processor uses the plurality of capacitance values at each of a plurality of values of a parameter to create an interference map.

Controller and method for controlling a capacitive touch screen or the like

A controller for a capacitive touch screen includes a touch resolve subsystem and a processor. The touch resolve subsystem, in response to a trigger input, measures a plurality of capacitance values using a plurality of input pins. The processor controls the touch resolve subsystem to acquire a baseline capacitance in a calibration mode, to acquire a frame comprising the plurality of capacitance values in a normal operation mode, and to update the baseline capacitance to a new baseline capacitance in the normal operation mode in response to the frame without entering the calibration mode.

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Austin, TX, United States of America

Vadim A Konradi