Hongdan Tao

20190082252, Mar 14, 2019

Sep 11, 2017

15/701335

- Cupertino CA, US
Christopher Wilk - Los Gatos CA, US
Claudio Notarangelo - San Francisco CA, US
Hongdan Tao - Sunnyvale CA, US
Michael J. Newman - Cupertino CA, US
Thomas H. Tsang - San Jose CA, US

H04R 1/28
H04R 9/06

A micro-speaker assembly including an enclosure having an enclosure wall separating a surrounding environment from an encased space, wherein the enclosure wall defines an acoustic port from the encased space to the surrounding environment; a sound radiating surface positioned within the encased space and dividing the encased space into a front volume chamber and a back volume chamber, wherein the front volume chamber is acoustically coupled to a first surface of the sound radiating surface and the acoustic port, and the back volume chamber acoustically coupled to a second surface of the sound radiating surface; and a resonator acoustically coupled to the front volume chamber, wherein the resonator comprises a neck acoustically coupled to an acoustic cavity, and an opening to the neck is positioned at a distance from the acoustic port that corresponds to a quarter wavelength resonance of the front volume chamber.

20180192217, Jul 5, 2018

Jan 4, 2017

15/398483

- Cupertino CA, US
Anthony P. Grazian - Los Gatos CA, US
Scott P. Porter - Cupertino CA, US
Christopher Wilk - Los Gatos CA, US
Hongdan Tao - Sunnyvale CA, US

H04R 29/00
H04R 9/04

A speaker assembly including a sound radiating surface suspended over a magnet assembly, a suspension member for suspending the sound radiating surface over the magnet assembly, a voice coil extending from a bottom side of the sound radiating surface, and a capacitive displacement sensor for sensing a movement of the sound radiating surface. The capacitive displacement sensor including a first conductive plate fixedly positioned over the sound radiating surface and a second conductive plate coupled to the sound radiating surface and vertically aligned with the first conductive plate, and wherein the second conductive plate is confined to an area that is entirely radially inward of the voice coil.

20180091892, Mar 29, 2018

Apr 27, 2017

15/499775

- Cupertino CA, US
Hongdan Tao - Sunnyvale CA, US
Claudio Notarangelo - San Jose CA, US
Suzanne C. Brown - San Jose CA, US
Benjamin J. Pope - Mountain View CA, US
Scott P. Porter - Inglewood CA, US
Tang Y. Tan - San Francisco CA, US
Christopher Wilk - Los Gatos CA, US

H04R 1/28
H04R 3/00
H04R 29/00

A portable electronic device including an enclosure having an enclosure wall that forms an interior chamber. A speaker module is positioned within the interior chamber and includes a speaker and a module wall forming a back volume chamber of the speaker. The back volume chamber includes an acoustic vent port formed through the module wall to acoustically couple the back volume chamber to the interior chamber. The device further including an electromechanical valve for regulating the acoustic coupling of the back volume chamber to the interior chamber. The electromechanical valve is operable to transition between an open configuration in which the acoustic vent port is open to the interior chamber and a closed configuration in which the acoustic vent port is closed off from the interior chamber.

20180084323, Mar 22, 2018

Sep 8, 2017

15/699064

- Cupertino CA, US
Anthony P. Grazian - Los Gatos CA, US
Hongdan Tao - Campbell CA, US
Christopher Wilk - Los Gatos CA, US
Daniel W. Jarvis - Sunnyvale CA, US
David A. Pakula - Palo Alto CA, US

H04R 1/02
H04R 9/06
H04R 1/28
H04R 9/02
H04R 7/18

An electronic device is disclosed that includes one or more sealed audio modules that are unaffected by changes in the internal pressure within the electronic device. The audio modules can also include one or more features that increase the audible bandwidth of the electronic device.

20170245057, Aug 24, 2017

Feb 19, 2016

15/048784

- Cupertino CA, US
Christopher Wilk - Mountain View CA, US
Hongdan Tao - Sunnyvale CA, US
Scott P Porter - Cupertino CA, US
Michael Asfaw - Mountain View CA, US

H04R 9/06
H04R 7/12
H04R 29/00
H04R 9/02
H04R 7/18

A speaker assembly including a frame and a magnet assembly positioned within the frame. The magnet assembly may include a magnet and a top plate. The assembly further including a sound radiating surface suspended over the magnet assembly. The sound radiating surface includes a flexible circuit. A suspension suspending the sound radiating surface over the magnet assembly is further provided. The suspension may be over molded to the sound radiating surface and the frame. A voice coil extends from a bottom side of the sound radiating surface and electrically connects to the flexible circuit.