Apple Inc.

Cisco Technology, Inc.

Ruchir M Dave

Scott P Porter

Christopher R Wilk

Sawyer Isaac Cohen

Nikolas T Vitt

Benjamin J Pope

Justin Derry Crosby

Shaohai Chen

Jae Hyung Lee

Norman William Finn

Martin E Johnson

Anthony D Minervini

Ashutosh Yugesh Shukla

Andrew P Bright

Daniel T McDonald

Guy C Nicholson

Premkumar Jonnala

Jesse A Lippert

Janhavi S Agashe

Qiang Wu

Jonathan P Ive

Duncan Robert Kerr

Bartley K Andre

Richard P Howarth

Eugene Antony Whang

Peter N Russell-Clarke

Christopher J Stringer

Martha Evans Hankey

Rico L Zorkendorfer

Daniele De Iuliis

Daniel J Coster

Jody R Akana

Matthew Dean Rohrbach

Jeremy D Bataillou

Julian Hoenig

Shin Nishibori

Tang Yew Tan

David A Pakula

Michael Benjamin Wittenberg

Ian A Spraggs

Brad G Boozer

Jason S Sloey

John B Ardisana, Ii

Jae Hwang Lee

Charles B Woodhull

Darius A Satongar

Alexander V Salvatti

Roderick Brian Hogan

Neal D Evans

David S Wilkes, Jr

Teemu P Sipila

Benjamin M Russo

Scott A Myers

Richard Hung Minh Dinh

Jared Mitchell Kole

Samuel Bruce Weiss

Yang Liu

Daniel K Boothe

Tyler B Cater

Dennis R Pyper

Vasu Iyengar

Martin J Auclair

Kevin M Froese

Eric N Nyland

Ihtesham H Chowdhury

Peter C Hrudey

Jae Han Lee

Pablo Seoane Vieites

Thomas M Jensen

David A Hurrell

Ashrith Deshpande

Anthony P Grazian

David MacNeil

Amin M Younes

Eugene H Fox

Salome Bavetta

Sawyer Issac Cohen

Joseph F Maldonado

Christopher Raymond Wilk

The present disclosure generally relates techniques for audio-assisted enrollment of biometric features. In some embodiments, methods and devices for assisting users with enrollment of biometric features, using spatial audio cues, are described.

Audio assisted enrollment

An audio speaker having a speaker housing surrounding a back volume that is divided into a rear cavity behind a speaker driver and an adsorption cavity separated from the rear cavity by a permeable partition, is disclosed. More particularly, the adsorption cavity may be defined between the speaker housing and the permeable partition, and may be directly filled with adsorptive particles to adsorb gas during sound generation. The permeable partition may allow the gas to flow between the rear cavity and the adsorption cavity, and may retain the adsorptive particles within the adsorption cavity. Other embodiments are also described and claimed.

Audio speaker with back volume containing adsorptive material

An audio speaker having an adsorptive insert in a speaker back volume, is disclosed. More particularly, an embodiment includes an adsorptive insert having a rigid open-pore body formed by bonded adsorptive particles. The rigid open-pore body includes interconnected macropores that transport air from the speaker back volume to adsorptive micropores in the bonded adsorptive particles during sound generation. Other embodiments are also described and claimed.

Audio speaker having a rigid adsorptive insert

A micro-electro-mechanical system (MEMS) microphone assembly including an enclosure having a top side and a bottom side that define a first chamber having a first volume and an acoustic inlet port formed through one of the top side or the bottom side. The assembly further including a MEMS microphone mounted within the first chamber, the MEMS microphone defining a second chamber having a second volume and a diaphragm having a first side interfacing with the first chamber and a second side interfacing with the second chamber. The assembly also including an acoustically absorbent material within one of the first chamber or the second chamber, the acoustically absorbent material to cause a simulated acoustic enlargement of the first volume or the second volume, respectively.

MEMS mircophone with increased back volume

A liquid-resistant microphone assembly includes a substrate defining a sound-entry region and a microphone transducer coupled with the substrate. The transducer has a sound-responsive region acoustically coupled with the sound-entry opening defined by the substrate. A liquid-resistant port membrane spans across the sound-entry opening defined by the substrate. The membrane is gas-permeable. An adhesive layer is positioned between the substrate and the liquid-resistant port membrane, coupling the liquid-resistant port membrane with the substrate and spacing the liquid-resistant port membrane from the substrate to form a gap between the membrane and the substrate. The adhesive layer defines an aperture having a periphery extending around and positioned outward of the sound-entry region. Modules and electronic devices incorporating such a microphone transducer also are disclosed.

Liquid-resistant packaging for electro-acoustic transducers and electronic devices

An acoustic transducer can have an acoustic diaphragm defining a barometric vent configured to equalize a barometric pressure-gradient across the acoustic diaphragm. Such a barometric vent can be formed by an aperture through the acoustic diaphragm. A gas-permeable vent membrane can be coupled with the acoustic diaphragm and extend across the aperture. The vent membrane can inhibit movement of liquid across the vent membrane. An acoustic-transducer module can include a chassis a chassis configured to mount the acoustic-transducer module to another module, and a suspension system can movably couple the acoustic diaphragm with the chassis. Such an acoustic-transducer module can sealably couple with a housing of a water-resistant electronic device to inhibit a flow of liquid into the housing while providing a water-resistant barometric vent to the housing, as well as an acoustic diaphragm having a sufficient size to meet or exceed selected acoustic-performance targets.

Vented acoustic transducers and related methods and systems

Systems and methods for reducing effects of time-division multiplexing noise in mobile communications devices. When cellular communication with time-division multiplexing is detected, such as Global System for Mobiles (GSM) communication with Time Division Multiple Access (TDMA) protocol, total energy and energy at a repetition frequency of the time division multiplexing is measured in audio signals received from several microphones located in the device. A control signal indicating microphones affected by TDMA noise is provided to signal processing subsystems that receive audio signals from the microphones. A beam former circuit may combine two or more audio signals to produce beam formed signals. The control signal may further indicate beam formed signals affected by TDMA noise based on a ratio of the energy from the repetition frequency to the total energy in the beam formed signals.

System and method for reducing noise from time division multiplexing of a cellular communications transmitter

This disclosure describes a speaker assembly suitable for use in a portable electronic device utilizing water resistant ports. The speaker assembly can have an open back that subjects a back volume of the speaker to pressure differentials within a device housing of the portable electronic device. The speaker assembly can utilize a speaker surround having a varying thickness. The varying thickness speaker surround allows the speaker to maintain an acceptable frequency response profile while limiting the travel of the diaphragm it is coupled with. The disclosure also describes how electrically conductive pathways can be integrated within a housing of the speaker assembly.

High performance low profile top speaker

Growing community of inventors

San Jose, CA, United States of America

Ruchir M Dave