Yu U Zhang

US Patent:

20220368388, Nov 17, 2022

Filed:

Mar 4, 2022

Appl. No.:

17/653641

Inventors:

- St. Michael, BB
Yu Zhang - Thousand Oaks CA, US
Shuimei Zhang - Oak Park CA, US
Xin Zhang - Agoura Hills CA, US

International Classification:

H04B 7/0456
H04B 17/11
H04B 17/21

Abstract:

This document describes techniques and systems for independent transmit and receive channel calibration for multiple-input multiple-output (MIMO) systems. Antenna responses are collected from each virtual channel of a MIMO system at an angle respective to an object. The transmit components and the receive components of the virtual channels are separated and organized into vectors (one for the transmit components and one for the receive components). Calibration values for elements of the vectors are computed and maintained in a transmit calibration matrix and a receive calibration matrix, respectively. Together, the transmit calibration matrix and the receive calibration matrix may include fewer elements than a calibration matrix for the virtual channels and, therefore, may require less memory and fewer computations to calibrate a MIMO system than using other calibration techniques. As such, described is a less expensive and less complex way to calibrate MIMO system by accurately approximating an ideal antenna array.

US Patent:

20220260672, Aug 18, 2022

Filed:

Apr 27, 2021

Appl. No.:

17/242175

Inventors:

- St. Michael, BB
Zhengzheng Li - Agoura Hills CA, US
Yu Zhang - Thousand Oaks CA, US

International Classification:

G01S 7/02
G01S 13/58
G01S 13/931

Abstract:

The disclosure provides systems, apparatuses, and techniques for operating automotive MIMO radars in crowded multi-path environments to obtain reliable detections by linearly predicting whether a bistatic condition occurred. To avoid saturating computing resources processing bistatic detections, the described techniques enable a radar system to quickly identify and discard from the field-of-view radar detections that are likely a result of bistatic conditions. By ignoring unusable radar returns that are likely a result of bistatic conditions, an example radar system can focus on processing radar returns from static conditions, for example, in providing radar-based detections as output to an automotive system that is driving a vehicle in an autonomous or a semi-autonomous mode. In so doing, the example radar system provides a highly accurate static object detector that is sufficiently quick in detecting bistatic conditions for use in vehicle-safety systems as well as autonomous and semi-autonomous control.

US Patent:

20220236370, Jul 28, 2022

Filed:

Apr 21, 2021

Appl. No.:

17/236893

Inventors:

- St. Michael, BB
Xin Zhang - Agoura Hills CA, US
Yu Zhang - Thousand Oaks CA, US

International Classification:

G01S 7/03
G01S 13/42
H01Q 21/08
H01Q 21/06
H01Q 1/32

Abstract:

This document describes techniques and systems of a radar system with paired one-dimensional (1D) and two-dimensional (2D) antenna arrays. Even with fewer antenna elements than a traditional radar system, the paired arrays enable an example radar system to have a comparable angular resolution at a lower cost. For example, the 1D array includes antenna elements positioned in a first direction (e.g., azimuth direction) and spaced by a first distance and a second distance. The 2D array includes at least four other antenna elements positioned in the first direction and a second direction (e.g., elevation direction). The other antenna elements are spaced by a third distance in the second direction and by the sum of the first direction and the second direction in the first direction. A processor can associate, using shared angle estimates, angles in the first direction and the second direction for respective objects.

US Patent:

20230018183, Jan 19, 2023

Filed:

Oct 15, 2021

Appl. No.:

17/503212

Inventors:

- St. Michael, BB
Yu Zhang - Thousand Oaks CA, US
Edgar Ortiz - Newbury Park CA, US
Clinton Colby - Santa Rosa Valley CA, US

International Classification:

G01S 13/90
G06T 5/00
G06T 5/20
B60W 50/06

Abstract:

This document describes techniques for enabling de-aliased imaging for a synthetic aperture radar. Radar signals processed by a synthetic aperture radar (SAR) system may include false detections in the form of aliasing induced by grating lobes. The techniques described herein can reduce the adverse effects of grating lobes by obtaining an initial SAR image using a back-projection algorithm. Aliasing effects (e.g., false detections) in this initial image may be common due to the limitations of an SAR system moving at non-uniform speeds. A refined image is produced from the initial image by applying a de-aliasing filter to the initial image. The refined image may have reduced or eliminated false detections that attribute to aliasing effects, resulting in a better representation of the environment of the vehicle.

US Patent:

20210350353, Nov 11, 2021

Filed:

Mar 31, 2021

Appl. No.:

17/218707

Inventors:

- Southfield MI, US
Te-Ping KANG - Ann Arbor MI, US
Brittany SCHOENOW - Merrill MI, US
Bilal ALASRY - Dearborn MI, US
Doua VANG - Davisburg MI, US
Yu ZHANG - Farmington Hills MI, US

International Classification:

G06Q 20/32
H04W 4/44
G06Q 20/40
B60Q 5/00
H04W 4/48

Abstract:

A computer-implemented method for utilizing vehicle connectivity to facilitate payment account transactions, the method comprising one or more wireless transceivers in communication with a remote server and mobile device, a processor in communication with the wireless transceiver and transceiver, wherein the processor is programmed to identify a transaction option utilizing data sent to the vehicle computer system, wherein the data is associated with a point of interest (POI), in response to identifying the transaction option, outputting a prompt on a vehicle display, the prompt including the transaction option, and sending information regarding the transaction option to the remote server.

US Patent:

20210247507, Aug 12, 2021

Filed:

Feb 12, 2020

Appl. No.:

16/788394

Inventors:

- St. Michael, BB
Yu Zhang - Thousand Oaks CA, US
Xin Zhang - Calabasas CA, US

International Classification:

G01S 13/32
G01S 7/35

Abstract:

A two-step optimization method for scheduling transmissions in an MIMO (multi-input multi-output) includes determining a first phase code for each transmission according to a first equation, placing each first phase code in a set of first phase codes, and determining a cost function of the set of first phase codes, determining a second phase code for each transmission according to a second equation, determining an updated cost function corresponding to replacing each of the first phase codes with a corresponding one of the second phase codes, and determining which set of phase codes has a smaller cost function.

US Patent:

20200310528, Oct 1, 2020

Filed:

Mar 25, 2019

Appl. No.:

16/363571

Inventors:

- Southfield MI, US
Yu ZHANG - Farmington Hills MI, US
Bilal ALASRY - Dearborn MI, US
Te-Ping KANG - Ann Arbor MI, US
Jordan NECOVSKI - Livonia MI, US
Sean BLEICHER - Fenton MI, US
Doua VANG - Waterford MI, US
Eleanor DUKE - Sterling Heights MI, US
Nicholaus SPUNAR - Canton MI, US

International Classification:

G06F 3/01
G06K 9/00
H04N 5/225
G10L 25/63

Abstract:

A system in a vehicle includes one or more sensors configured to obtain input from an occupant of the vehicle. The system also includes a controller in communication with the one or more sensors, wherein the controller is configured to, receive the input from the one or more sensors, determine a mood of the occupant utilizing at least the input, and output a solution to a vehicle display in response to the mood of the occupant.

US Patent:

20200282803, Sep 10, 2020

Filed:

Mar 8, 2019

Appl. No.:

16/296438

Inventors:

- Southfield MI, US
- Kariya, JP
Yu ZHANG - Farmington Hills MI, US
Jordan NECOVSKI - Livonia MI, US
Bilal ALASRY - Dearborn MI, US
Sean BLEICHER - Fenton MI, US
Doua VANG - Waterford MI, US
Eleanor DUKE - Sterling Heights MI, US
Nicholaus SPUNAR - Canton MI, US

International Classification:

B60H 1/00
G01K 13/00

Abstract:

A system and method are disclosed for a vehicle that comprises one or more sensors configured to obtain information indicating a physical state of a baby. A wireless transceiver may be included and in communication with a mobile device. The transceiver may be configured to connect mobile device with a camera configured to monitor the baby. A controller may also be in communication with the one or more sensors and the wireless transceiver. The controller may be configured to determine the physical state of the baby utilizing the information obtained from the one or more sensors. The controller may also be configured activate one or more vehicle systems in response to the physical state of the baby and to output on a vehicle display or the mobile device a notification to a user indicating the physical state of the baby.