Inventor

KHAJEH EHSAN

US44 patents

⚠️ This page may combine multiple inventors who share the name “KHAJEH EHSAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KHAJEH EHSAN

APPLE INC

Methods of biometric imaging of input surfaces

Acoustic pulse coding for imaging of input surfaces

Acoustic imaging of user input surfaces

Geometric structures for acoustic impedance matching and improved touch sensing and fingerprint imaging

Thin-film acoustic imaging system for imaging through an exterior surface of an electronic device housing

Differential acoustic touch and force sensing

Methodology and application of acoustic touch detection

Ultrasonic water-agnostic touch detection sensor

Acoustic imaging system architecture

Computing device case

System and method for acoustic touch and force sensing

Ultrasonic touch detection through display

Regional gain control for segmented thin-film acoustic imaging systems

Beamforming optimization for segmented thin-film acoustic imaging systems incorporated in personal portable electronic devices

Methodology and application of acoustic detection of optical integrity

Differential acoustic touch and force sensing

Acoustic imaging system architecture

System and method for acoustic touch and force sensing

Ultrasonic polarizer

System and method for acoustic touch and force sensing

Differential acoustic touch and force sensing

Shear-poled curved piezoelectric material

Regional gain control for segmented thin-film acoustic imaging systems

Geometric structures for acoustic impedance matching and improved touch sensing and fingerprint imaging

Beamforming optimization for segmented thin-film acoustic imaging systems incorporated in personal portable electronic devices

Computing device case

Computing device case

Ultrasonic touch sensing parasitic wave rejection

Piezoelectric transducers for detection of touch on a surface

Composite cover material for sensitivity improvement of ultrasonic touch screens

Touch input devices

Ultrasonic water-agnostic touch detection sensor

Annular piezoelectric structure for ultrasonic touch sensing

Ultrasonic touch detection on stylus

Signal processing for segmented thin-film acoustic imaging systems for portable electronic devices

Ultrasonic force detection

Method and apparatus for isolating ultrasonic touch sensor from reflections in a device housing

KHAJEH EHSAN

Formation measurements using flexural modes of guided waves

Formation measurements using nonlinear guided waves

Variable thickness acoustic transducers

Guided acoustic waves isolation system for downhole applications

BAKER HUGHES INC

Pressure compensated capacitive micromachined ultrasound transducer for downhole applications

Guided wave downhole fluid sensor

ELECTRIC POWER RES INST

System and method for directing guided waves through structures