Abstract: Embodiments of the present invention provide systems and methods for automatic amplifier gain profile control, including a method for automatically configuring a variable gain profile amplifier according to received input and a variable gain profile amplification system. Further, embodiments of the present invention provide systems and methods for increased gain profile accuracy, including methods and systems to reduce the effects of temperature and/or process variations on the gain profile of an amplifier.

Abstract: A multi-mode RFID tag includes a power generating and signal detection module, a baseband processing module, a transmit section, a configurable coupling circuit, and an antenna section. In near field mode, the configurable coupling circuit is operable to couple the transmit section to a coil or inductor in the configurable coupling circuit to transmit an outbound transmit signal using electromagnetic or inductive coupling to an RFID reader. In far field mode, the configurable coupling circuit is operable to couple the transmit section to the antenna section, and the multi-mode RFID tag then utilizes a back-scattering RF technology to transmit the outbound transmit signal to RFID readers.

Abstract: Data packets transmitted over a wireless network are suppressed by hardware at the transmitting end and expanded on the receiving end. This conserves bandwidth as well as reduces the processing resource requirements in both the subscriber station and the base station. An extended header element is added to a data packet that is to be transmitted over the wireless network. The extended header element contains an index that is used along with an identifier to access a rule. The rule is used to determine which bytes are to be suppressed at the transmitter and expanded at the receiver.

Abstract: Aspects of a method and system for a shared GM-stage between in-phase and quadrature channels may include processing an in-phase (I) component signal for the I channel and a quadrature (Q) component signal for the Q channel via one or more shared transconductance stages in a frequency demodulator. The I channel may be isolated from the Q channel and the Q channel may be isolated from the I channel using isolation resistors. The values of the isolation resistors may be selected so as to balance the isolation and signal attenuation. A folding circuit, comprising active devices, may isolate the I channel from the Q channel. A generated voltage may be utilized to bias the folding circuit. An oscillator for the I channel may be isolated from a mixer for the Q channel and an oscillator for the Q channel may be isolated from a mixer for the I channel.

Abstract: A method for processing signals is disclosed and may include performing using one or more processor and/or circuits in a receiver that uses a plurality of antennas: receiving via a channel, a plurality of RF signals by one or more of the plurality of antennas. The plurality of received RF signals may be weighted utilizing one or more corresponding RF weighting values to generate a plurality of weighted RF signals. The one or more corresponding RF weighting values may include a frequency-independent weight coefficient that is constant over the channel. At least a portion of the plurality of weighted RF signals may be combined to generate one or more combined RF signals. The one or more corresponding RF weighing values may be selected to maximize an output signal-to-noise ratio of the channel. The output signal-to-noise ratio may be averaged over the channel.

Abstract: Aspects of a method and system for a single antenna receiver system for W-CDMA are provided and may comprise computing channel estimates based on received multipath signals. Timing correction signals indicating a location of the received multipath signals may be generated and the received multipath signals may be combined based on the computed channel estimates and/or the generated timing reference signals. The multipath signals may be combined as a signal cluster. Circuitry may be provided that computes channel estimates based on at least one of a plurality of received multipath signals, and generates timing reference signals indicating a location of at least one of the plurality of received multipath signals. Circuitry may also be provided that combines at least a portion of the plurality of received multipath signals based on at least a portion of the computed channel estimates and/or the generated timing reference signals.

Abstract: A device for handing off a wireless connection can include a receiver configured to receive a communication signal from a wireless device within a first wireless cell, a first processor configured to determine communication information regarding the first wireless cell, and a storage unit configured to store directional information regarding the first wireless cell. In addition, the device can have a transmitter configured to transmit the directional information to a wireless device located within the first wireless cell, and a second processor configured to provide wireless connection to the wireless device through the receiver and the transmitter. The second processor can Handoff the wireless connection to a second wireless cell.

Abstract: Aspects of a method and system for signal generation via a temperature sensing crystal integrated circuit are provided. In this regard, a temperature sensing crystal integrated circuit (TSCIC) comprising a memory and a crystal or crystal oscillator may generate a signal indicative of a measured temperature. The generated signal and data stored in the memory may be utilized to configure one or more circuits communicatively coupled to the TSCIC. The data stored in the memory may characterize behavior of the TSCIC as a function of temperature and/or time. The data characterizing the behavior of the TSCIC may indicate variations in frequency of the crystal or crystal oscillator as a function of temperature and/or time. The data characterizing the behavior of the TSCIC may comprise one or both of a frequency value and a frequency correction value.

Abstract: A method for selectively controlling the flow of data through a network device is discussed. The network device has a plurality of ports, with each port of the plurality of ports having a plurality of priority queues. Congestion at one priority queue of the plurality of priority queues is detected and a virtual channel message is sent to other network devices connected to the network device causing data destined for the one priority queue to be halted. After the congestion at the one priority queue has abated, a virtual channel resume message is sent to the other network devices.

Abstract: A method of forming a ball grid array (BGA) package is provided. The method includes coupling an integrated circuit (IC) die to a heat spreader in an opening of a substrate, the opening of the substrate extending through the substrate, such that a portion of the heat spreader is accessible through the opening and coupling a first surface of a second substrate to the IC die via a bump interconnect. The second surface of the second substrate has an array of contact pads capable of coupling to a board.

Abstract: Super block error correction code (ECC) adaptable to communication systems including hard disk drives (HDDs) and other memory storage devices. A means is presented by which a number of blocks of information can be organized, with a degree of ECC provided thereto, and transmitted via a signal into a communication channel. In some instances, the communication channel is coupled to a storage media as in the context of an HDD, and information is written to and read from the storage media via this communication channel (e.g., “read channel”). This means is particularly well suited to applications that provide large amounts of data via any one transmission (e.g., DVR/PVR (Digital/Personal Video Recorder)). A redundant block is generated using the information of each of a number of information blocks thereby provided extra ECC on a large portion of data, and that redundant block also undergoes ECC encoding.

Abstract: Bandwidth mechanisms and successive channel reservation access within multiple user, multiple access, and/or MIMO wireless communications. A management frame, communicated from one wireless communication devices to one or more others, includes successive channel reservation assignment therein, and also indicates channel(s) within cluster(s) for use in respective communications (e.g., transmissions/receptions) of those wireless communication device(s) that receive the management frame. Subsequent management frames can modify or update such a channel assignment. Channel reservation for use in communications by respective wireless communication devices may be grown when additional channels may become available. Based on later determined information regarding the channel availability status, such channels that may become available can be used for subsequent, wider bandwidth communications.

Abstract: An adjustable integrated circuit antenna structure includes an antenna, a ground plane, a plurality of transmission line circuit elements and a coupling circuit. The coupling circuit is operable to couple at least one of the plurality of transmission line circuit elements into a transmission line circuit based on a transmission line characteristic signal. The transmission line circuit has at least one of a bandwidth, an impedance, a quality factor, and a frequency band in accordance with the transmission line circuit characteristic signal.

Abstract: According to an example embodiment, a system may include at least one processor and at least one memory comprising a policy module configured to receive data indicating risk factors associated with users of the system; update risk levels for the users by applying the data to risk factor rules; and provide the updated risk levels and/or authentication levels associated with the updated risk levels to an authentication module in response to receiving requests from the authentication module. The at least one processor and at least one memory may also comprise the authentication module configured to receive a first access request from a user; in response to receiving the first access request, request a first updated risk and/or authentication level for the user from the policy module; and require the user to provide a first authentication technique to grant the first access request based on the first updated risk and/or authentication level received from the policy module.

Abstract: A process of maintaining access information between wireless hotspots is disclosed. A logon request from a wireless portable device is received by a first access point of a first wireless hotspot and use of the first access point by the wireless portable device is authenticated to establish an access session. Then, information related to the access session is passed to a shared register accessible by a plurality of wireless hotspots and the access session is monitored to determine whether a disconnect by the wireless portable device occurs. Additionally, when the wireless portable device moves from a coverage area of the first wireless hotspot to one coverage area of one of the plurality of wireless hotspots, the information related to the access session may be used to facilitate access to the one of the plurality of wireless hotspots by the wireless portable device.

Abstract: Aspects of a method and system for decoding GSM speech data using redundancy are provided. A decoding algorithm in a frame process may be utilized to generate a bit-sequence for GSM speech data received via a burst process. The decoding algorithm may be a modified Viterbi algorithm, for example. The frame process may comprise verifying a CRC for the bit-sequence and/or decrypting the bit-sequence. In some instances, estimates of the bit-sequence may be fed back to the decoding algorithm. A speech stream that satisfies speech constraints may be generated based on the generated bit-sequence. The speech constraints may comprise gain and/or pitch continuity, for example. The generated speech stream may be decoded via a voice decoder that supports full rate (FR), adaptive multi-rate (AMR), and/or enhanced full-rate (EFR) speech coding. Frame process results may be fed back to the burst process to improve decoding of received GSM speech data.

Abstract: A packet-based, hierarchical communication system, arranged in a spanning tree configuration, is described in which wired and wireless communication networks exhibiting substantially different characteristics are employed in an overall scheme to link portable or mobile computing devices. The network accommodates real time voice transmission both through dedicated, scheduled bandwidth and through a packet-based routing within the confines and constraints of a data network. Conversion and call processing circuitry is also disclosed which enables access devices and personal computers to adapt voice information between analog voice stream and digital voice packet formats as proves necessary. Routing pathways include wireless spanning tree networks, wide area networks, telephone switching networks, internet, etc., in a manner virtually transparent to the user.

Abstract: A system for adding a time stamp to transmission traffic on a wireless network comprises a front end processor that receives a packet from the network and generates a Start Of Frame pulse and a LENGTH field corresponding to a length of the packet. A time stamp generator generates a time stamp by sampling the system master time counter. A synchronizer receives the SOF pulse and the LENGTH field from the front end processor, and generates a control signal. A multiplexer inputs the packet from the front end processor, the control signal and the time stamp, and outputs a modified packet with a field in the packet replaced by the time stamp.

Abstract: A method, apparatus, and system for using Bluetooth devices to secure sensitive data on other Bluetooth devices is described. A Bluetooth device is paired with a “trusted” Bluetooth device. When contact with the trusted device is lost, designated sensitive data on the secured Bluetooth device is automatically encrypted. When contact is restored, the data is automatically decrypted. In an alternate embodiment, a secured device can be associated with multiple trusted devices, and the secured device designate different sensitive data for each trusted device. In this way, multiple users can share a common, “public” Bluetooth device without concern that the other users will access their sensitive data on the device when the device is not being used by that user.

Abstract: Aspects of a method and system for a distributed transceiver for high frequency applications may include generating a second signal from a first signal by frequency-translating the first signal via a plurality of conversion stages. Each of the plurality of conversion stages may frequency-translate a corresponding input signal by a local oscillator frequency or by a fraction of said local oscillator frequency, and each of the plurality of conversion stages may comprise a multiplier and a notch filter. The first signal may be the corresponding input signal to an initial stage of a the plurality of conversion stages, an output signal of a previous one of the plurality of conversion stages may be the corresponding input signal to a subsequent one of the plurality of conversion stages, and the second signal may be an output signal of a final stage of the plurality of conversion stages.