Timothy H Campbell

US Patent:

D4230736, Apr 18, 2000

Filed:

Nov 9, 1998

Appl. No.:

D/096330

Inventors:

Timothy L. Campbell - Glendora CA

International Classification:

2205

US Classification:

D22137

US Patent:

20210089047, Mar 25, 2021

Filed:

Dec 4, 2020

Appl. No.:

17/112332

Inventors:

- Mountain View CA, US
Timothy Campbell - Los Angeles CA, US

International Classification:

G05D 1/02
G01S 13/60
G01S 13/931
G08G 1/16
B62D 6/00
B62D 15/02
B60W 10/04
B60W 10/18
B60W 10/20
G01S 7/06
B62D 6/02
G01S 13/52

Abstract:

Examples relating to vehicle velocity calculation using radar technology are described. An example method performed by a computing system may involve, while a vehicle is moving on a road, receiving, from two or more radar sensors mounted at different locations on the vehicle, radar data representative of an environment of the vehicle. The method may involve, based on the data, detecting at least one scatterer in the environment. The method may involve making a determination of a likelihood that the at least one scatterer is stationary with respect to the vehicle. The method may involve, based on the determination being that the likelihood is at least equal to a predefined confidence threshold, calculating a velocity of the vehicle based on the data from the sensors. The calculated velocity may include an angular and linear velocity. Further, the method may involve controlling the vehicle based on the calculated velocity.

US Patent:

20190339383, Nov 7, 2019

Filed:

Jul 3, 2019

Appl. No.:

16/503131

Inventors:

- Mountain View CA, US
Timothy Campbell - Venice CA, US

International Classification:

G01S 13/93
G01S 13/30
G05D 1/00
G05D 1/02

Abstract:

In an example method, a vehicle configured to operate in an autonomous mode could have a radar system used to aid in vehicle guidance. The method could include transmitting at least two signal pulses. The method further includes, for each transmitted signal pulse, receiving a reflection signal associated with reflection of the respective transmitted signal pulse. Each reflection signal may be received when the apparatus is in a different respective location. Additionally, the method includes processing the received reflection signals to determine target information relating to one or more targets in an environment of the vehicle. Also, the method includes correlating the target information with at least one object of a predetermined map of the environment of the vehicle to provide correlated target information. Yet further, the method includes storing the correlated target information for the at least one object in an electronic database.

US Patent:

20190094877, Mar 28, 2019

Filed:

Sep 22, 2017

Appl. No.:

15/713499

Inventors:

- Mountain View CA, US
Timothy Campbell - Los Angeles CA, US

International Classification:

G05D 1/02
G01S 7/06
G01S 13/60
G01S 13/93
G08G 1/16
B62D 6/00
B62D 15/02
B60W 10/04
B60W 10/18
B60W 10/20

Abstract:

Examples relating to vehicle velocity calculation using radar technology are described. An example method performed by a computing system may involve, while a vehicle is moving on a road, receiving, from two or more radar sensors mounted at different locations on the vehicle, radar data representative of an environment of the vehicle. The method may involve, based on the data, detecting at least one scatterer in the environment. The method may involve making a determination of a likelihood that the at least one scatterer is stationary with respect to the vehicle. The method may involve, based on the determination being that the likelihood is at least equal to a predefined confidence threshold, calculating a velocity of the vehicle based on the data from the sensors. The calculated velocity may include an angular and linear velocity. Further, the method may involve controlling the vehicle based on the calculated velocity.

US Patent:

20180113209, Apr 26, 2018

Filed:

Oct 21, 2016

Appl. No.:

15/299970

Inventors:

- Mountain View CA, US
Timothy Campbell - Los Angeles CA, US

International Classification:

G01S 13/93
G01S 13/86
G01S 13/42

Abstract:

Systems and methods are described that relate to generating an object grid for a vehicular radar system. The method includes transmitting a radar signal over a 360-degree azimuth. The method also includes receiving one or more reflection signals respectively associated with reflection of the transmitted radar signal by one or more objects. The method further includes determining, for each object, a respective measured angle, a respective measured distance, and a respective measured velocity. Additionally, the method includes determining a first object grid based on the one or more objects. The first object grid comprises a plurality angles that together cover the 360-degree azimuth and, for each angle that corresponds to a measured angle of a given object, the first grid associates the angle with the measured distance and measured velocity of the given object. Yet further, the method includes controlling an autonomous vehicle based on the first object grid.