Telecommunications and Internet

A new error correction code is introduced that allows for recovery of some lost packets even when excessive packet losses make full recovery of all lost packets impossible.

Propagation models of worms in mobile ad hoc networks are provided. These models can be used in the design of systems for detecting new, previously unknown, worms in these networks.

A new augmented reality technique guides a user's attention to objects in 3D space. In addition to drawing the user's attention, it can be used to provide information and initiate procedures related to the object or to aid user navigation.

An algorithm and a circuit are provided for implementing high-speed CMOS analog decoders. This technology is useful for iterative decoding of turbo, low-density parity-check (LDPC) or turbo-like coded data.

Simultaneous bit error rate and distortion minimization in a communication system is achieved by utilizing information about the source encoding and exploiting the non-uniformity in Gray-coded constellations used for modulation.

Freely observable variables from wireless LANs such as the Signal to Silence Ratio are used to estimate the bit error rate (BER) of received packets. Using cross-layer protocols, this information can be passed to the decoder for use in information recovery and can lead to significant improvement in video throughput.

A patch antenna whose radiation pattern can be adjusted using a feedback signal to meet variable operational criteria.

Web-based games designed for aging populations and women, which may decrease cognitive decline with age.

A 3D, augmented reality system includes a video capture system for obtaining and transmitting 3D images of a user's face and a head-mounted display that provides an augmented reality environment in which the user observes both physical objects and virtual objects.