Abstract: A method, system, and computer-readable medium for detecting an interferer in a wireless communication system are provided. The method includes receiving a signal having P tones, each of the P tones being associated with a frequency, determining a first signal quality of each of the P tones, determining a second signal quality of each of the P tones, and detecting the interferer that occupies the same frequency as one of the P tones based on the respective first signal quality and the respective second signal quality. The first signal quality and second signal quality behave differently when the interferer is present. The detecting the interferer includes determining a discrepancy in the behavior of the first signal quality and the second signal quality.

Abstract: A device is provided for use in a portable computer. The device includes a wireless graphics card that includes a connector for coupling to an expansion slot of the portable computer and for receiving a plurality of signals from the portable computer, the plurality of signals including video, audio, and data signals and an ultra wideband (UWB) chipset coupled to the connector for processing the plurality of signals and for generating an OFDM modulated signal that includes at least the video signal, where the OFDM modulated signal including the video signal is wirelessly transmitted over an UWB link to a monitor for display.

Abstract: A method for providing wireless Ethernet connectivity over an UWB link includes providing an adapter coupled to an external network via an Ethernet port, monitoring, by the adapter, a plurality of communication channels in an UWB spectrum, establishing a wireless link on a preferred communication channel, and exchanging data between the adapter and a UWB-enabled device over the wireless link.

Abstract: A method for precise transmit power adjustment in a wide personal area network (WPAN) is provided that includes coarse adjusting a power level of the radio signal by adjusting a gain setting of an amplifier that is used to power the radio signal, and fine adjusting the power level of the radio signal by adjusting a voltage level of an information signal that is provided to the amplifier so that the power level of the radio signal approaches a maximum allowable power level.

Abstract: A system, method and computer-readable medium for reducing the required throughput in an ultra-wideband system is provided. A temporal sub-sampling routine limits the number of frames, or portions thereof, to be transmitted to a sink over an RF link. The temporal sub-sampling routine may have a fixed, or static, sub-sampling rate that specifies the rate at which frames are discarded. In accordance with another embodiment, an automatic temporal sub-sampling mechanism is provided. Additionally, a tile copying mechanism may be implemented for reducing the throughput of the RF link. A WDV subsystem may include an interface to an external frame buffer that facilitates the temporal sub-sampling and tile copy routines disclosed herein.

Abstract: A system, method and computer-readable medium for encoding and decoding digital information over a channel is provided. Type Mapping is employed and is based on the partitioning of vectors over an alphabet into “types” and using enumeration for the encoding and decoding process. Type mapping allows for signal alphabets of arbitrary size and date rate flexible coding. Tradeoffs between optimal rate versus Signal to Noise Ratio are provided and works as a compliment to the Forward Error Control that may be employed in communications products.

Abstract: A system includes a line-based receiver for receiving protected content from a source and a line-based transmitter for providing the protected content to a destination. The protected content is secure, such as by using a High-bandwidth Digital Content Protection (HDCP) mechanism. Between the line-based transmitter and receiver is a wireless transmitter and a wireless receiver. The wireless transmitter establishes an encrypted wireless link with the wireless receiver according to a second encryption mechanism. The wireless transmitter is further configured for receiving the protected content from the line-based receiver, encrypting the protected content according to the second encryption mechanism, and wirelessly transmitting the encrypted protected content. The wireless receiver is further configured for receiving the wirelessly transmitted protected content from the wireless transmitter and decrypting the protected content according to the second encryption mechanism.

Abstract: The present invention provides a method for increasing data throughput for a wireless USB system that includes wire adapters that wirelessly transmit data between a host system and a USB enabled device.

Abstract: This invention provides a Wireless USB hub that includes a first port configured to communicate with a wired USB enabled device, a second port configured to communicate with a first wireless USB enabled device, and a controller that detects the wired USB enabled device and presents the wired USB enabled device as a native wireless USB enabled device to the first wireless USB enabled device.

Abstract: A method for line-based video rate control is provided. The line based video rate control method includes system feedback to change system operating parameters, including on a packet-by-packet basis and also on a line-by-line basis. Also provided is a method for line-based compression. The method includes basic elements of an arithmetic coder to improve Golomb coding performance. By inverting operations in the method for line-based compression, the corresponding decoder can be obtained. The method also provides a heuristic-driven method for generating prediction residuals from quantized data, wherein prediction is driven in the direction of maximum correlation so that it is unnecessary to supply the decoder with additional data specifying this direction at each array element.

Abstract: A method for line-based video rate control is provided. The line based video rate control method includes system feedback to change system operating parameters, including on a packet-by-packet basis and also on a line-by-line basis. Also provided is a method for line-based compression. The method includes basic elements of an arithmetic coder to improve Golomb coding performance. By inverting operations in the method for line-based compression, the corresponding decoder can be obtained. The method also provides a heuristic-driven method for generating prediction residuals from quantized data, wherein prediction is driven in the direction of maximum correlation so that it is unnecessary to supply the decoder with additional data specifying this direction at each array element.

Abstract: A system, method, and computer-readable medium for detection and avoidance of victim services in ultra-wideband systems is provided. A detect and avoid module may calculate power averages of OFDM tones. The power of tones may then be measured and compared with power averages of corresponding tones. If a measured tone power exceeds an average power of a corresponding tone by a dynamic threshold, the tone may be identified as associated with an interferer. The threshold may be inversely related to the gain level of an automatic gain control module. The ultra-wideband subsystem may be configured with known bands of victim services of other RF systems, and a tone identified as associated with an interferer that is within a known victim service band may be identified as a victim service. The UWB subsystem may attenuate or otherwise suppress transmission within the victim service band to avoid interfering with the victim service.