Jian C Guo

US Patent:

20230095729, Mar 30, 2023

Filed:

Sep 22, 2022

Appl. No.:

17/950801

Inventors:

- Cupertino CA, US
Guangwu Duan - Cupertino CA, US
Jian Guo - Palo Alto CA, US
Chaitanya Mudivarthi - Sunnyvale CA, US
Long T. Pham - San Jose CA, US

International Classification:

H02J 50/90
H02J 50/10

Abstract:

Circuitry in the electronic device may use a plurality of magnetic sensors to detect an alternating current signal transmitted by the wireless charger and/or to detect a magnetic field generated by one or more magnets in the wireless charger. The circuitry may determine a position of the wireless charger relative to a wireless power transfer coil in the electronic device and provide feedback to guide users in attaching the wireless charger to the correct position on the electronic device, including such as visual indications on a device display.

US Patent:

20230096496, Mar 30, 2023

Filed:

Sep 30, 2021

Appl. No.:

17/449557

Inventors:

- Mountain View CA, US
Jian Guo - Sunnyvale CA, US

International Classification:

H04R 1/32
G06K 9/00
H04R 1/40

Abstract:

In general, techniques are described by which to enable a transparency mode in vehicles. A device comprising one or more microphones and one or more processors may be configured to perform the techniques. The microphones may capture audio data representative of a sound scene external to a vehicle. The processors may perform beamforming with respect to the audio data to obtain object audio data representative of an audio object in the sound scene external to the vehicle. The processors may next reproduce, by interfacing with one or more speakers included within the vehicle and based on the object audio data, the audio object in the sound scene external to the vehicle.

US Patent:

20210239831, Aug 5, 2021

Filed:

Aug 30, 2018

Appl. No.:

17/053847

Inventors:

- Mountain View CA, US
Rajeev NONGPIUR - Palo Alto CA, US
Wei LI - San Jose CA, US
Jian GUO - Sunnyvale CA, US
Jennifer Yeelam WONG - Mountain View CA, US
Andrew Christopher FELCH - Mountain View CA, US
James Paul TOBIN - Palo Alto CA, US
Lu GAO - Santa Clara CA, US
Brian SILVERSTEIN - San Carlos CA, US

International Classification:

G01S 15/42
G06F 3/01
H04R 1/08
H04R 3/00
G10L 25/51
G06T 7/70
H04R 1/32
G01S 7/53
G01S 7/539
G01S 15/86

Abstract:

The various embodiments described herein include methods, devices, and systems for ultrasonic sensing on electronic devices. In one aspect, a method is performed at an electronic device having memory, one or more processors, a speaker, and a microphone. The method includes, while audibly communicating with a user via the speaker and microphone: (1) sending one or more ultrasound pulses via the speaker; (2) receiving, via the microphone, one or more signals corresponding to the one or more ultrasound pulses; (3) determining positioning of the user based on the one or more received signals; and (4) adjusting one or more parameters of the speaker and/or the microphone based on the determined positioning.

US Patent:

20210072378, Mar 11, 2021

Filed:

Nov 18, 2020

Appl. No.:

16/951800

Inventors:

- Mountain View CA, US
Rajeev Nongpiur - Palo Alto CA, US
Wei Li - San Jose CA, US
Jian Guo - Sunnyvale CA, US
Jennifer Yeelam Wong - Mountain View CA, US
Andrew Christopher Felch - Mountain View CA, US
James Paul Tobin - Palo Alto CA, US
Lu Gao - Santa Clara CA, US
Brian Silverstein - San Carlos CA, US

International Classification:

G01S 15/88
G01S 13/42
G01S 13/86
G01S 13/88

Abstract:

An electronic device has memory, one or more processors, a speaker, and a microphone. The device sends a first set of ultrasound chirps at a first rate via the speaker. It receives, via the microphone, a first set of signals corresponding to the first set of ultrasound chirps and being reflected from a person. The device determines based on the first set of signals that the person is in proximity to the electronic device. In accordance with the determination that the person is in proximity to the electronic device, the device sends a second set of ultrasound chirps at a second rate, faster than the first rate. It receives, via the microphone, a second set of signals corresponding to the second set of ultrasound chirps, and identifies a gesture from the person based on the second set of signals.

US Patent:

20200103252, Apr 2, 2020

Filed:

Sep 26, 2019

Appl. No.:

16/584840

Inventors:

- Cupertino CA, US
Jian Guo - Milpitas CA, US
John Greer Elias - Townsend DE, US

International Classification:

G01D 5/20

Abstract:

Magnetic sensing technology can be used to detect changes, or disturbances (e.g., changes in magnetic field strength), in magnetic fields and can be used to measure the precise location/positioning of an electronic device in proximity to a magnetic source. In order to avoid interference by earth's static magnetic field, a modulated magnetic field can be used for magnetic based proximity sensing. Received modulated magnetic field signals can be demodulated to determine a received magnetic field strength. A drive current of a magnetic transmitter coil can be varied to maintain the detected magnetic field strength at a target value or within a desirable range. The drive current can also be varied to remain below a burnout current level that can cause damage to the transmitter coil.

US Patent:

20190369169, Dec 5, 2019

Filed:

May 30, 2018

Appl. No.:

15/993528

Inventors:

- Cupertino CA, US
Jian Guo - Milpitas CA, US
Chaitanya Mudivarthi - Sunnyvale CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

G01R 33/00
G01C 17/02
G01R 33/09

Abstract:

Disclosed is a magnetometer architecture that uses a separate shield to minimize cross-axis sensitivity with low impact on main axis sensitivity. In an embodiment, a magnetometer with cross-axis shielding comprises: a ring shield; a magnetic yoke disposed within the ring shield; and one or more magnetic field sensors disposed between the ring shield and the magnetic yoke, the magnetic field sensors positioned relative to the ring shield and the magnetic yoke such that flux induced by a magnetic field is absorbed in a cross-axis direction of the magnetometer.

US Patent:

20190094811, Mar 28, 2019

Filed:

Sep 27, 2017

Appl. No.:

15/717782

Inventors:

- Cupertino CA, US
Jian GUO - Cupertino CA, US

International Classification:

G04C 3/00
G04G 17/08

Abstract:

An electronic device is disclosed. In some examples, a crown comprising a housing can be operatively coupled to a body of the electronic device, and configured to rotate in a first direction with respect to the body of the electronic device in response to a mechanical input provided by the user. A rotating member can be disposed at least partially inside the crown housing and configured to rotate in the first direction in response to the mechanical input. A first magnetic sensing cell can be attached to the rotating member at a first location of the rotating member and can be electrically connected to an electronic circuit. A magnet can be configured to remain stationary with respect to the body of the electronic device. The electronic circuit can be configured to generate a first signal corresponding to a rotational position of the crown with respect to the body of the electronic device.

US Patent:

20190086480, Mar 21, 2019

Filed:

Sep 21, 2017

Appl. No.:

15/711787

Inventors:

- Cupertino CA, US
Jian Guo - Milpitas CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

G01R 33/00
G01R 35/00
G01R 33/02

Abstract:

Systems, methods, apparatuses and non-transitory computer-readable mediums are disclosed for a self-calibrating system architecture for magnetic distortion compensation. In an embodiment, an electronic system comprises: a magnetometer; a plurality of spaced-apart calibration coils proximate to the magnetometer; first circuitry configured to excite the calibration coils during a calibration phase of the electronic system; second circuitry configured to measure a first magnetic field vector in a vicinity of the magnetometer that is generated by the excited calibration coils; third circuitry configured to: generate sensitivity values based on the first magnetic field vector measurement and a baseline magnetic field vector; and a storage device configured for storing the sensitivity values.