Abstract: A power amplifier for use in a transmitter includes a first transistor having an input, a first node and a second node, a second transistor having an input, a first node and a second node and a digital to analog conversion module. The input of the first transistor is coupled to receive a first input, while the input of the second transistor is coupled to receive a second input. The second nodes of the first and second transistors provide an output of the power amplifier. The digital to analog conversion module is coupled to control current through the first and second transistors.

Abstract: Multi-band single-carrier modulation. A novel approach is presented by which interference compensation may be performed for signals received by a piconet operable device. The piconet operable device may be implemented within a region that includes two or more SOPs (Simultaneously Operating Piconets). Estimation of the level and location of interference is performed and the input to a decoder (within the piconet operable device) is selectively weighted to ensure that the effect of any existent interference within the signal received by the piconet operable device is minimized. Different interference levels are dealt with differently. For one example, portions of the received signal having undergone a large amount of interference may be simply treated as erasures with respect to the input the decoder. For another example, portions of the received signal having undergone some smaller degree of interference, but some interference nonetheless, may be de-weighted before being provided to the decoder.

Abstract: Providing mobile network security is disclosed. A first mobile network provider equipment registers using a secret data that is known to a registration entity with which the first mobile network provider equipment is configured to register and embodied in a physical device associated with the first mobile network provider equipment in a manner that enables the physical device to be used to perform a cryptographic function using the secret data but prevents the physical device from being used to provide the secret data as output. An encryption data usable to communicate securely with a second mobile network provider equipment over a packet data network is received from the registration entity.

Abstract: An integrated circuit radio receiver includes radio frequency (“RF”) front end circuitry for receiving and transmitting digital data received through a wireless interface. A baseband processor is operable to process the digital data received through the wireless interface. A plurality of digital filtering logic is included wherein each digital filtering logic includes a level of digital filtering based upon a received digital data signal format. The integrated circuit radio receiver includes logic that is operable to select between each digital filtering logic of the plurality of digital filtering logic based upon the received digital data signal format to process the digital data received through the wireless interface with the selected level of digital filtering.

Abstract: A voice, data and RF integrated circuit includes an RF transmitter generates a transmit signal that includes a first calibration signal when at least one control signal indicates a receive calibration mode. An RF receiver receives a received signal that includes the first calibration signal and generates at least one receiver equalization parameter for equalizing the RF receiver, when the at least one control signal indicates the receive calibration mode.

Abstract: Address generation for contention-free memory mappings of turbo codes with ARP (almost regular permutation) interleaves. A novel means is presented by which anticipatory address generation is employed using an index function that is based on an address mapping which corresponds to an interleave inverse order of decoding processing (??1). In accordance with parallel turbo decoding processing, instead of performing the natural order phase decoding processing by accessing data elements from memory bank locations sequentially, the accessing of addresses is performed based on the index function that is based on an mapping and the interleave (?) employed within the turbo coding. In other words, the accessing data elements from memory bank locations is not sequential for natural order phase decoding processing. The index function also allows for the interleave (?) order phase decoding processing to be performed by accessing data elements from memory bank locations sequentially.

Abstract: A system and method for enhanced accuracy in cable diagnostics of cable length. Conventional cable diagnostics such as time domain reflectometry can be used to determine cable length. This conventional technique can have accuracy limitations in certain situation such as with perfectly terminated cable. A cable length can also be determined through the use of link delay measurements that are based on clock synchronization between nodes in a network. Notwithstanding the accuracy issues of these link delay measurements, overall accuracy can be increased through the combination of the two cable length delay measurements into a final estimate.

Abstract: An input inductor or input inductive network is used to improve the performance of circuits working in discrete time domain, especially a sample and hold circuit. Input series inductors resonate with the capacitance at the input of the sample and hold at high frequencies to extend its bandwidth. At high frequencies, the inductors act as high impedance chokes between the termination resistor and the capacitors and thus also improve the input reflection of the chip.

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, to detect an event such as a hidden terminal condition.

Abstract: Embodiments include a system for performing electronic dispersion compensation on an information-bearing signal transmitted over a communication channel. The system may include a channel identification module configured to receive a first digitized version of the information bearing signal and an equalized version of the information-bearing signal, and may be configured to determine an impulse response of the communication channel based thereon. The system may include a time varying phase detector configured to receive the equalized version of the information bearing signal, a second digitized version of the information-bearing signal, and the impulse response, and may be further configured to generate a reference wave based on the impulse response and the equalized version of the information-bearing signal.

Abstract: A switching chip for performing switching and other functions on packets transmitted through the switching chip. The switching chip includes a memory management unit that identifies a class of service to which each packet belongs, wherein upon processing the packet. The memory management unit transmits the packet to a CPU through a CPU processing module. The switching chip also includes a CPU processing module that includes a class of service bitmap that is associated with a plurality of channels. Each of the plurality of channels is further associated with at least one class of service, includes a per channel bit and is assigned a predefined priority level. Upon receiving packets from the memory management unit, the CPU processing module is configured to sort the packets according to the class of service to which the packet belongs and store each packet in an associated one of the plurality of channels.

Abstract: A method and related computer program product for combining resources of multiple RAID controllers and managing them as a single entity, comprising searching the RAID controllers for the most appropriate version of the firmware to be executed, determining whether a more appropriate version of the firmware was previously loaded into system memory, unloading inappropriate versions of the firmware, loading the most appropriate version of the firmware and initializing all RAID controllers as a commonly managed entity having combined resources.

Abstract: An intelligent fabric congestion control apparatus and method are provided to receive data packets from source endpoints and output the data packets to destination endpoints. The apparatus and method include a counter, a timer, and a controller. The counter increments from a preset value when a data packet is received at an egress queue and decrements when the data packet is output from the egress queue. The timer starts timing in response to the incrementing of the counter from the preset value. The controller performs one of resetting the timer when the counter is decremented to the preset value prior to the timer reaching a first threshold, and detecting a persistent congestion when the timer reaches the first threshold.

Abstract: Various embodiments are disclosed relating to a wireless transceiver. In an example embodiment, a method of compensating for phase imbalance and amplitude imbalance between corresponding in-phase signals and quadrature-phase signals includes providing a plurality of test tones of various frequencies to a receiver and determining, for each of the test tones, a respective phase imbalance and a respective amplitude imbalance between an in-phase (I) signal and a quadrature-phase (Q) signal of the test tone. The example method also includes determining a set of filter coefficients based on the determined phase and amplitude imbalances of the plurality of test tones and applying the set of filter coefficients to a plurality of filters. In the example method, a phase imbalance between an I signal and a Q signal of a received wireless signal is compensated for using a first filter of the plurality of filters.

Abstract: A network device for implementing VLAN translation on a packet. The network device includes a user network interface port for receiving and transmitting packets to customers of a network. The network device also includes a network to network interface port for communicating with a second network device in the network. A packet received at the user network interface port is classified, translated based on a predefined provider field associated with the packet, and encapsulated with a tag that is removed when the packet is transmitted from the user network interface port to a customer.

Abstract: A communication device includes an RF transceiver for communicating first data with at least one of a plurality of remote communication devices via a first protocol and a first frequency band in a first mode of operation. A millimeter wave transceiver communicates second data with at least one of the plurality of remote communication devices via a second protocol and a second frequency band in a second mode of operation. A communication control module coordinates the communication of the first data and the second data with the at least one of the plurality of remote communication devices. A graphical interface device selects the at least one of the plurality of remote communication devices and selects at least one of the first mode of operation and the second mode of operation, based on actions of a user.

Abstract: A radio frequency identification (RFID) system includes an RFID reader, an RFID tag, and a network connection module. The RFID reader includes a reader radio frequency (RF) bus transceiver. The network connection module includes a network connection RF bus transceiver, wherein the reader RF bus transceiver exchanges at least one of inbound RFID data and outbound RFID data with the network RF bus transceiver via an RF bus.

Abstract: A Power-over-Ethernet (PoE) communication system dynamically provides power and data communications over a communications link. In an enterprise environment made up of one or more personal computing devices (e.g., personal or laptop computers), a switch determines a power classification for each device via a PoE control module that can be part of, for example, a Power Source Equipment/Powered Device (PSE/PD) system or a LAN-On-Motherboard/Powered Device (LOM/PD) system. A method of classifying power for each device includes detecting a device, polling it for power requirement information using a Layer 2 data link layer, receiving power requirement information from the device, and determining a power classification for the device. Power requirement information can include battery charge status, power load, power mode, etc., of the device. Various types of data packets can be used. The method can be repeated on a periodic basis, allowing power classification to be dynamic.

Abstract: A downstream adaptive modulation system and method. The downstream adaptive modulation system comprises a wireless access termination system and one or more wireless modems. The wireless access termination system includes a plurality of queues and a parser. The parser parses data traffic onto the plurality of queues. Each queue is associated with a different coding and modulation scheme. Each of the one or more wireless modems receives data traffic from the plurality of queues based on the wireless modem's ability to demodulate and decode the signal from each of the plurality of queues. When a wireless modem experiences a change in signal strength, the present invention enables the wireless modem to adapt to data from other queues to compensate for the change in signal strength. Thus, if the signal strength improves over a period of time, the wireless modem may receive data at a higher order modulation and FEC code rate.

Abstract: Low complexity communication device employing in-place constructed LDPC (Low Density Parity Check) code. Intelligent design of LDPC codes having similar characteristics there between allows for a very efficient hardware implementation of a communication device that is operative to perform decoding of more than one type of LDPC coded signals. A common basis of decoder hardware (e.g., decoder circuitry) is employed when decoding all of the various types of LDPC coded signals that such a communication device can decode. However, all of the decoder hardware is only employed to decode signals corresponding to the lowest code rate LDPC code supported by the communication device. A first subset of the decoder hardware is employed to decode signals corresponding to the second to lowest code rate LDPC code, a second subset (being less than the first subset) is employed to decode signals corresponding to the third to lowest code rate LDPC code, etc.