Interdigital Patent Holdings, Inc.

Amazon Technologies, Inc.

Kandarp Shah

Douglas R Castor

Stephen E Terry

Janet A Stern-Berkowitz

Rui Yang

Philip J Pietraski

Mihaela C Beluri

Tao Deng

Ravikumar V Pragada

Erdem Bala

Samian Kaur

Gregory S Sternberg

Kiran K Vanganuru

Pratik Kalpesh Patel

James J Wolfe

Jayashree Subramanian

Srinath Byregowda

Robert G Gazda

Serhad Doken

A base station may sense, on a cell using unlicensed spectrum, that the unlicensed spectrum is available for transmission. The base station may transmit, after sensing that the unlicensed spectrum is available, consecutive subframes. Each subframe may include a physical downlink control channel and a physical downlink shared channel.

Wireless operation in unlicensed spectrum

Systems and methods for fall detection on uneven surfaces utilizing radar are disclosed. For example, an electronic device may receive reflected energy from surfaces in an environment. Corresponding sensor data associated with an object moving on an uneven surface may be utilized to determine a velocity of the object and a height change of the object. When the velocity indicates that the object has stopped moving toward or away from the sensing device, and the height values indicate a sudden decrease in height, a fall event may be detected.

Fall detection on uneven surfaces using radar

Systems and methods for boundary approximation utilizing radar are disclosed. For example, a heatmap of an environment may be generated utilizing data from reflected energy received at a device. The heatmap may be utilized to generate a point cloud representing the environment, where points of the point cloud indicate rates of change of energy intensity associated with surfaces in the environment. The points may be utilized to determine a mean line indicating an approximated distance between a portion of the environment, such as a wall, and the device.

Boundary approximation utilizing radar

A grant that includes a resource allocation for a subframe set may be communicated. The subframe set may include a subframe resource and another subframe resource following the subframe resource. Sensing, during a sensing time prior to utilization of the subframe resource, that the unlicensed spectrum is available may be performed. Transmitting, based on the sensing, data on the subframe resource and the another subframe resource without further sensing may also be performed.

Wireless operation in license exempt spectrum

A visual light communication (VLC) medium is used to provide communicative coupling between two or more devices. The communicative coupling supports a variety of functions such as, for example, device discovery, content discovery, and seamless transfer of media between the two or more devices.

Inter-device communications using visible light

Growing community of inventors

San Jose, CA, United States of America

Kandarp Shah