Ge Lighting Solutions LLC

Northwestern Polytechnical University

Chao Pan

Jingdong Chen

Jacob Benesty

Cuijuan Zhou

Yun Jiang

Jiping Zou

A system and method relate to receiving, by a processing device, a plurality of sound signals captured at a plurality of microphone sensors, wherein the plurality of sound signals are from a sound source, and wherein a number (M) of the plurality of microphone sensors is greater than three, determining a number (K) of layers for a multistage minimum variance distortionless response (MVDR) beamformer based on the number (M) of the plurality of microphone sensors, wherein the number (K) of layers is greater than one, and wherein each layer of the multistage MVDR beamformer comprises one or more mini-length MVDR beamformers, and executing the multistage MVDR beamformer to the plurality of sound signals to calculate an estimate of the sound source.

Multistage minimum variance distortionless response beamformer

A reflector including pairs of reflecting pieces, each pair of reflecting pieces includes at least one reflecting unit, each reflecting unit including a first reflecting portion, a second reflecting portion, and a first fixing portion and a second fixing portion whose bottom ends are respectively connected to the first reflecting portion and the second reflecting portion. The first fixing portion is located on the side of the first reflecting portion that is opposed to an optical center of the reflecting unit, and the second fixing portion is located on the side of the second reflecting portion that is opposed to the optical center of the reflecting unit.

Reflector, illuminator and the use thereof

Growing community of inventors

Shaanxi, China

Chao Pan