Abstract: A system and method for controlling performance and/or power based on monitored performance characteristics. Various aspects of the present invention may comprise an integrated circuit comprising a first circuit module that receives electrical power. A second circuit module may monitor one or more performance characteristics of the first circuit module and/or the integrated circuit. A third circuit module may, for example, determine power control information based at least in part on the monitored performance characteristic(s). The power control information may be communicated to power supply circuitry to control various characteristics of the electrical power. Various aspects of the present invention may also comprise an integrated circuit comprising a first module that monitors at least one performance characteristic of a first electrical device.

Abstract: Optical signals may be communicated with A/V Bridging services between an upstream link partner and a down stream link partner, each comprising an asymmetric Ethernet optical physical layer (PHY). High bandwidth A/V optical signals may be transmitted from the upstream link partner and low bandwidth optical signals may be transmitted from the downstream link partner. One or more of a time stamp, a traffic class and/or a destination address may be utilized in generating PDUs and managing communications via the asymmetric Ethernet optical PHY. The receiving link partner may register for delivery of the PDUs. An aggregate communication rate may be distributed evenly or unevenly among one or more optical links for transmission and aggregated upon reception via asymmetric Ethernet optical PHY operations. Compressed, uncompressed, encrypted and/or unencrypted optical signals may be handled. Signal processing may comprise forward error checking and clock recovery.

Abstract: Aspects of a method and system for processing signals in a high performance receive chain may include amplifying radio frequency signals in amplifier chains in a multistandard radio frequency front-end, comprising one or more shared processing stages, and combining, with substantially equal gain, a number of phase-shifted radio frequency signals of the radio frequency signals into substantially equal-gain-combined radio frequency signals. The substantially equal-gain-combined radio frequency signals may be demodulated to obtain inphase channels and quadrature channels. A number of inphase channels and quadrature channels may be processed in I-channel processing blocks and Q-channel processing blocks to generate an output analog baseband signal. The multistandard radio frequency front-end may be capable of processing Bluetooth® signals and Wireless Local Area Network (WLAN) signals.

Abstract: Wireless devices may utilize a Bluetooth stack to setup a data transmission session between the devices. The data transmission session may comprise a Bluetooth PHY and/or MAC/PHY layer that enables the wireless devices to perform discovery, pairing, and security setup operations. A secondary physical layer may be utilized to perform high speed data transmission. The secondary physical layer may comprise a 60 GHz PHY and/or MAC/PHY. The secondary physical layer may be integrated via the Bluetooth stack, and applications running on top of the Bluetooth stack may utilize the secondary physical layer transparently. A portion of the transmitted data may be multiplexed onto other secondary physical layers that may be available in the wireless devices. Alternatively, transmission of data may comprise switching among available secondary physical layers. The Bluetooth PHY and/or MAC/PHY layer may be utilized during data transmission to continually monitor and/or manage the data transmission.

Abstract: A system (50) includes a communication path (170) and transmits data on a network (103, 106). A transmitter (101) transmits data on the network and a receiver (112) receives data from the network. A component (102, 114) in the communication path has a transfer characteristic (C1, C2, C3) adjusted in response to errors in data transmitted over and received from the network in order to reduce the error rate.

Abstract: An equalization circuit adjusts (e.g., equalizes) an input signal according to the value of one or more adjustment signals (e.g., equalization coefficients) without a multiplication operation. For example, the circuit may add or subtract a value of a coefficient signal to the amplitude of an input signal. Here, whether the coefficient is added or subtracted may depend on the sign of a control signal.

Abstract: Disclosed herein is a method and apparatus for preventing and eliminating undesirable effects in displayed video. The method may include receiving video information and decoding the video information. The method may also include processing the number of illuminable lines associated with a video frame and blanking a remainder of the illuminable lines. Blanking the remainder of the illuminable lines may prevent and eliminate undesirable effects in the displayed video. The illuminable lines may be processed, such that each field may comprise an even number of corresponding, illuminable lines 530. The fields, however, are not required to have the same number of lines. In an embodiment according to the present invention, no active lines in one field may be below a blanked line in a corresponding field.

Abstract: A method for classifying an incoming packet. The method includes maintaining a database associated with patterns of fields, where the fields can be network addresses. The database can be developed by mapping each pattern to a unique numeric identifier. The number of unique numeric identifiers is equal to the number of patterns, and the size of each unique numeric identifier is substantially smaller than the field of each pattern. The database can be further developed by determining a range of one or more of the unique numeric identifiers to be associated with each pattern. The range for each pattern can be bounded by a minimum unique numeric identifier and a maximum unique numeric identifier. The method also includes using a field of the incoming packet to determine an associated identifier for that field, where the associated identifier is equal to one of the unique numeric identifiers.

Abstract: A system and method of classifying a high powered device (PD) with an increased current limit includes: connecting a voltage to the PD, measuring current through a classification resistor connected to the PD, and determining a PD classification signature based on the current according to classification steps such that a minimum classification step includes a minimum current of 0 mA and a maximum classification step includes a maximum current beyond a predetermined current limit. The system includes a PSE, voltage source, PD classification resistor, and PD voltage, connected to the P. An alternative embodiment further includes a discrete classification circuit and discrete classification resistor to be used to measure the current for classification purposes instead of the PD classification resistor when the PD and PD classification resistor do not support power classification under the classification scheme.

Abstract: A highly linear and very low-noise down-conversion mixer for extracting weak signals in the presence of very strong unwanted signals is disclosed. Aspects of an embodiment may include a source follower circuit in a transmitter front end of a mobile terminal. The source follower circuit may receive RF signals prior to the RF signals being amplified by a power amplifier for transmission. The RF signals may comprise in-phase and quadrature components. The source follower circuit may generate output RF voltage signals, and communicate the output RF voltage signals to a switching circuit via a coupling capacitor. The switching circuit may down-convert the communicated output RF voltage signals to generate differential baseband signals. The capacitance of the coupling capacitor may be changed to change gain and/or linearity of the differential baseband signals. Each of the differential baseband signals may be low-pass filtered to attenuate higher frequencies.

Abstract: Methods and systems are disclosed for providing secured data transmission and for managing cryptographic keys. One embodiment of the invention provides secure key management when separate devices are used for generating and utilizing the keys. One embodiment of the invention provides secure storage of keys stored in an unsecured database. One embodiment of the invention provides key security in conjunction with high speed decryption and encryption, without degrading the performance of the data network.

Abstract: In the current invention, a method and apparatus for efficiently deleting large files is described. This is done by having a special inode for pointing to data blocks to be freed, and subsequently freeing the data blocks from the special inode in a controlled manner.

Abstract: A system and method for dynamic energy efficient Ethernet (EEE) control policy based on user or device profiles and usage parameters. The analysis by an EEE control policy can consider user or device related EEE profile information that is either network propagated or retrieved from a network database. This EEE profile information can be used in combination with static settings established by an IT manager and the properties of the traffic on the link itself.

Abstract: Polar feedback architecture. A polar modulator, as may be implemented within a transmitter module, of a communication device includes feedback. This feedback involves monitoring of phase information and magnitude/amplitude information of an output signal generated by the polar modulator. The output signal can be a radio frequency (RF) signal such as may be transmitted via a communication channel within a communication system. A baseband processing module processes the monitored phase information and magnitude/amplitude information to perform adjustment of a phase modulator and/or other components within the polar modulator.

Abstract: Methods and apparatus are provided for performing authentication and decryption operations. A record including multiple encrypted blocks is received. An encrypted block in the record is extracted and decrypted first in order to obtain context information for performing authentication operations. Each remaining block is then decrypted and authenticated by using the available context information. Authentication operations can be performed without having to wait for the decryption of all of the blocks in the record.

Abstract: Methods and apparatus for swapping functionality modes of a network data link are disclosed. An example method includes, in a network device, supporting a plurality of active network data links that includes a given network data link, where the given network data link is operated in accordance with a first mode of functionality.

Abstract: Inter-device adaptable interfacing clock skewing. The invention is operable in either one of both of a transmit mode and a receive mode to perform skewing of a transmitted and/or a received signal. The operational parameters including frequency and phase may be determined during auto detect/auto negotiation, they may be programmed externally, or they may be user selected in various embodiments. A device may include a clock generator, one or more divider, and one or more delay cells internally to the device. If desired, a high frequency clock is generated within the device and then divided down to generate the appropriate clock signal that supports the communication and interaction between multiple devices. Registers and/or pins may be used to select the clock frequency and phase of output clock signals. The present invention supports multiple Ethernet protocols between multiple devices including 10BaseT, 100BaseT, and 1000BaseT.

Abstract: Overlay to augment quality of currently playing media. The overlay operates to enhance the quality format of media so that it is output in a different quality format. As one example, when playing media content encoded in accordance with a standard definition television (SDTV) quality format, an appropriate overlay would operate to upgrade the quality format thereof to enhanced definition television (EDTV) quality format, high definition television (HDTV) quality format (or some other quality format). An appropriate overlay may also operate in accordance with audio content (e.g., upgrading a quality format of the audio content). With the advent of Blu-Ray discs (and other higher quality format discs), many individuals presently have libraries of media that are encoded with legacy/previous quality formats. An appropriate overlay that operates in conjunction with media encoded with a legacy/previous quality format allows the same content to be enjoyed in accordance with a newer/improved quality format.

Abstract: A wireless access point and multiple wireless terminals exchange utilization, status, mobility and reception characteristics. Each wireless terminal generates reception characteristics based on transmissions received from the wireless access point and from other devices in the network. In one operating mode, the characteristics gathered by the wireless devices are forwarded to the wireless access point, and, based on all received characteristics, the wireless access point selects its own transmission power for different types of the transmission. In another mode, all characteristics are exchanged between every wireless terminal and the access point so that each can independently or cooperatively make transmission power control decisions. In a further mode, the wireless access point adjusts protocol parameters based on an assessment of the characteristics received from the client devices.

Abstract: A hybrid transmitter includes first and second up-conversion modules, a combining module, and a power amplifier circuit. The first up-conversion module is operably coupled to generate a first up-conversion signal based on a normalized in-phase (I) symbol, an in-phase local oscillation, and phase or frequency information. The second up-conversion module is operably coupled to generate a second up-conversion signal based on a normalized quadrature (Q) symbol, a quadrature local oscillation, and the phase or frequency information. The combining module is operably coupled to combine the first and second up-conversion signals to produce a radio frequency (RF) signal. The power amplifier circuit is operably coupled to adjust amplitude of the RF signal based on amplitude information to produce an amplitude and phase modulated RF signal.