公开(公告)号：US20200345278A1

公开(公告)日：2020-11-05

申请号：US16862864

申请日：2020-04-30

Applicant: Analog Devices, Inc.

Inventor： Mikael MORTENSEN

IPC: A61B5/12 ,  H04R1/10 ,  A61B5/00

Abstract: Herein disclosed is a system that may be implemented within a headphone to facilitate hearing testing. Implementation of the system in the headphone may include implementation of tone generation circuitry and sound pressure level measurement circuitry being implemented in the headphone limiting the amount of calibration for accurate measurement when performing a hearing test.

公开(公告)号：US20200249334A1

公开(公告)日：2020-08-06

申请号：US16840789

申请日：2020-04-06

Applicant: Analog Devices, Inc.

Inventor： Mikael MORTENSEN ,  Eric G. NESTLER ,  J. Brian HARRINGTON ,  Jeffrey G. BERNSTEIN

IPC: G01S7/52 ,  G01S15/89 ,  G10K11/34

Abstract: A system for ultrasound beamforming is provided, including a sampled analog beamformer, an array of ultrasound transducers, and a high voltage amplifier coupled to the sampled analog beamformer and the array of ultrasound transducers. The sampled analog beamformer includes a sampled analog filter for filtering an incoming analog signal and adding a fractional delay, and transmitting a filtered analog ultrasound signal. The array of ultrasound transducers further transmits the filtered analog ultrasound signal. The high voltage amplifier drives transducers in the array of ultrasound transducers.