Qualcomm Incorporated

Babak Aryan

Alejandro Raul Holcman

Chong U Lee

Ramin Rezaiifar

Kirk Allan Burroughs

Jeremy M Stein

Ron Keidar

Xiaoyin He

Vijayalakshmi Rajasundaram Raveendran

Ahmed Kamel Sadek

Stephen Jay Shellhammer

Mohammad Ali Tassoudji

Avinash Jain

Jack Brian Steenstra

Michael Alexander Howard

Charles Wheeler Sweet, Iii

Cong Nguyen

Khurshid Syed Alam

Charles Alfred Bergan

John Michael Wyrwas

Ying Zhou

Mark Stirling Caskey

Wenyi Zhang

Yong Jin Kim

Vijayalakshimi Raveendran

Seung-Hyun Kong

Wenhui Xiong

A touch and hover-sensitive sensor system is provided. The system may include a planar light guide that has a plurality of light sources located along a first edge of the light guide and a plurality of light sensors located along a second edge of the light guide orthogonal to the first edge. The light guide may include light-turning arrangements that are configured to redirect light passing through a first side of the light guide from/along orthogonal directions within the light guide. A controller may illuminate proper subsets of the light sources; light that is emitted from the first side and that encounters an object, e.g., a fingertip, may be reflected back into the first side and then redirected to the light sensors. Depending on the light sensors that detect the highest redirected reflected light intensity and the active light sources, the controller may determine the XY/XYZ location of the object.

Infrared touch and hover system using time-sequential measurements

Operating at least one low duty cycle (LDC) controller to maintain synchronization between the LDC controller and a plurality of LDC terminals operating over a communication network using only overhead channels of the network and conforming to the protocol and timing of said network, wherein synchronization between the LDC controller and the plurality of LDC terminals is maintained separately from the protocol and timing of the communication network, and enables the LDC controller to schedule power down and wake up of the plurality of LDC terminals for durations longer than allowable under the protocol and timing of the communication network.

Low duty cycle network controller

The subject matter disclosed herein relates to a system and method for establishing communication between a low duty cycle device and other devices through a wireless communication network. In one particular implementation, the low duty cycle device may awaken from a hibernating state in synchronization with transmission of messages.

Low duty cycle device protocol

A network server, such as, for example, a mobile positioning center, having an information or schedule controller or having access to an information or schedule controller is provided. The information or schedule controller is provided with a schedule for a low duty cycle wireless device to provide the network server with the ability to store messages for transmission to the low duty cycle wireless device when the low duty cycle wireless device is in a low power mode of operation and transmit the messages during scheduled awake times.

Network server having an information and scheduling controller to support one or more low duty cycle wireless devices

The subject matter disclosed herein relates to a system and method for estimating transmit chain and receive chain processing delays by a first wireless device. In a particular implementation, a first signal may be wirelessly transmitted from a first wireless device and at least a portion of the first signal may be received by a receiver of the first wireless device during transmission of the first signal. A first transmit processing delay and a first receive processing delay associated with the first signal may be measured or determined based at least in part on the receipt of the at least a portion of the first signal during the transmission of the first signal.

Method and system for real-time calibration and reporting of processing delay

White space signals are differentiated from licensed ATSC signals through modification of a waveform of the white space signal. White space signals may be modified by shifting the ATSC-compatible waveform so that the pilot frequency of the white space signal is at a location outside of the frequency range associated with the pilot frequency in a licensed ATSC signal or embedding a watermark signal into said ATSC-like white space signals. White space device transmitters generate the signals with these modifications and white space receivers are equipped to detect whether a pilot exists in the standard licensed pilot frequencies. Based on these differences, white space devices can better operate without interfering with licensed ATSC transmission. Additionally, the modification techniques may be used to embed data in the white space signal that may be used to communicate connection data or networking data to other white space devices.

Distinguishing and communicating between white space devices transmitting ATSC-compatible signals

Methods and apparatus are provided for use in wireless networks to provide and/or otherwise support peer-to-peer positioning operations.

Methods and apparatuses for providing peer-to-peer positioning in wireless networks

One feature provides a method for transmitting content to a receiving device, by establishing channel hopping sequence information with the receiving device via a first communication band. The channel hopping sequence information is associated with a plurality of traffic channels within a second communication band. Moreover, the method entails transmitting the content to the receiving device through the plurality of traffic channels via the second communication band using a channel hopping scheme implemented according to the channel hopping sequence information. In one embodiment, establishing the channel hopping sequence information with the receiving device via the first communication band further includes: obtaining a channel hopping sequence key; and transmitting the channel hopping sequence key to the receiving device within the first communication band.

Channel hopping based content protection having an out-of-band communication band

A method and apparatus for creating a dynamic GeoFence area by determining an instant reference point using a first set of pseudorange measurements received by a GeoFence device, defining the dynamic GeoFence area referenced to the instant reference point, determining a position fix using a second set of pseudorange measurements, and comparing the position fix to the dynamic GeoFence area. In one aspect, an alert message based on the comparison results is presented to a user.

Method for dynamic creation of a GeoFence in a wireless system

Methods and apparatuses are provided for use in devices that are enabled to receive control channel information over a link having a plurality of interlaced slots. The methods and apparatuses may be implemented to selectively disable/enable one or more circuits within a receiver path at selected times.

Growing community of inventors

San Diego, CA, United States of America

Babak Aryan