Abstract: According to one embodiment, a compact low-power receiver comprises a front-end producing a front-end gain and a back-end producing a back-end gain. The front-end includes a transconductance amplifier providing digital gain control and outputting an amplified receive signal, a mixer for generating a down-converted signal from the amplified receive signal, and a transimpedance amplifier (TIA) including a current mode buffer. The TIA provides gain control for amplifying the down-converted signal to produce a front-end output signal. In one embodiment, the back end includes a second-order low-pass filter to produce a filtered signal from the front-end output signal and an analog-to-digital converter (ADC), wherein the filtered signal is fed directly to the ADC without direct-current (DC) offset cancellation being performed. In various embodiments, the front-end gain is substantially greater than the back-end gain.

Abstract: Embodiments of a summer block for a Decision Feedback Equalizer are provided herein. The summer block is configured to offset a combination of a Feed Forward Equalized (FFE) data signal and a Feedback Equalized (FBE) data signal by a dc amount: The dc amount is based on at least a weight of a tap previously implemented with an FBE of the DFE. The summer block can be further configured to offset the combination of the FFE data signal and the FBE data signal based on a dc offset value necessary to compensate for asymmetries in the data eye of data received by the FFE over a channel and a dc offset value necessary to compensate for mismatches present in the circuits of the DFE.

Abstract: According to an example embodiment, a wireless node may determine that a first reserved retransmission frame overlaps with a second reserved transmission frame and a second reserved retransmission frame and that the second reserved transmission frame overlaps with a first reserved transmission frame and the first reserved retransmission frame. The first reserved transmission frame and the first reserved retransmission frame may be reserved for wireless communication with a first master node, and the second reserved transmission frame and the second reserved retransmission frame are reserved for wireless communication with a second master node.

Abstract: A network device for processing data on a data network includes a port interface configured to receive a data packet from a data network and to send a processed data packet to an egress port of the plurality of ports, a packet evaluation module configured to parse the received data packet and modify the received data packet to form the processed data packet and a search engine configured to perform searches of lookup tables using parsed data packet values and to return search results to the packet evaluation module to assist in modifying the received data packet. At least one lookup table shares at least two different types of entries in that same at least one lookup table, where the search engine is configured to distinguish between the at least two different types of entries in that same at least one lookup table.

Abstract: Various example embodiments are disclosed. According to an example embodiment, an apparatus may include at least one processor and at least one memory. The at least one memory may include computer-executable code that, when executed by the processor, is configured to cause the apparatus to send a message to a node in wireless communication with the apparatus, the message indicating a transition by the apparatus from multiple-input multiple-output (MIMO) to single-input single-output (SISO), and transition from wireless MIMO communication with the node to wireless SISO communication with the node after sending the message to the node.

Abstract: Certain aspects of a method and system for adaptive temporal interpolation filtering for motion compensation may include computing a plurality of weights for adaptively adjusting one or more parameters of a plurality of linear filters utilized for motion compensation. One or more motion compensated output pictures may be generated based on vector median filtering a plurality of linear filtered output pictures generated by the plurality of linear filters. In instances where two frames are utilized for motion estimation of a video sequence, a motion compensated picture of a previous frame and a motion compensated picture of a current frame may be combined to adaptively compute the subsequent weights. In instances where three or more frames are utilized for motion estimation of a video sequence, the generated one or more motion compensated output pictures may be combined with an extracted desired picture from the video sequence to adaptively compute the subsequent weights.

Abstract: A central entity and/or a remote device in a communication system are designed to address the problem of maintaining upstream synchronization in the remote device after loss of the downstream signal. One issue of particular importance is maintaining upstream transmissions from the remote device in an S-CDMA (or perhaps S-TDMA) mode that do not degrade performance of the communication system via poor upstream timing or a need for re-ranging. By providing novel functionality at the central entity for synchronizing first and second downstream signals and/or by providing novel functionality at the remote device for determining a symbol clock offset between a first terminated downstream signal and a second re-acquired downstream signal, embodiments of the present invention facilitate maintenance of synchronization through the loss of the downstream signal, thereby minimizing the need for re-ranging and avoiding poorly timed upstream bursts.

Abstract: A tuner front-end circuit for processing a radio frequency (RF) signal includes a first filter block that terminates the RF signal for unwanted frequency bands; a second filter block that provides selectivity within the unterminated signal by separating the unterminated signal into a plurality of separate signals, each of a different desired frequency band; and an amplifier block that amplifies each of the separate signals. One or more of the amplified separate signals can be provided to a tuner. The circuit can also include a daisy chain output block that provides the amplified separate signals to one or more additional tuners. One or more tracking filter blocks can also be included to provide further selectivity to the amplified separate signals and to reject signals at specific harmonics to prevent degradation of a signal-to-noise ratio. A method of processing an RF signal is also presented.

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: A system and method providing concurrent multimode communication through multimode signal multiplexing. Various aspects of the present invention may comprise, during a first time period, transmitting a first portion of a first communication in a first communication mode in a serial wireless transmission stream. During a second time period after the first time period, a first portion of a second communication may be transmitted in a second communication mode in the serial wireless transmission stream. Also, during a third time period after the second time period, a second portion of the first communication may be transmitted in the first communication mode in the serial wireless transmission stream. In an exemplary scenario, prior to communicating various communications, transmission time may be allocated between the first and second communication modes. In another exemplary scenario, transmission may be switched between a plurality of communication modes in response to detected communication conditions.

Abstract: A system and method for efficient matching regular expression patterns across multiple packets. A deep packet inspection system can be embodied in a switch ASIC using a flow tracker and a signature matching engine. The flow tracker can be positioned in an ingress portion of the switch ASIC at a location where packets in a bi-direction flow can be observed and recorded. The flow tracker generates a signature match request that is forwarded to a signature matching engine in an auxiliary pipeline. The signature matching engine is enabled to perform cross-packet signature matching using signature matching state machines and reports the signature matching results to the flow tracker using a response packet that is sent to the ingress pipeline.

Abstract: An advanced split microwave architecture is provided. The advanced split microwave architecture includes a smart outdoor communication unit including a digital N-Plexer configured to multiplex and/or demultiplex a received data signal in the digital domain, a processor unit configured to carry out instructions to control operation of the digital N-Plexer, and a converter module configured to convert the received data signal between the digital domain and the analog domain. The smart outdoor communication unit further includes an RF module, having digital capabilities, configured to correct errors within the received data signal in the digital domain, perform a conversion of the received data signal, to amplify a power of the received data signal, and to perform automatic gain control in the digital domain.

Abstract: An advanced split ODU architecture is provided. The advanced architecture includes an indoor communication unit including a digital modem assembly configured to modulate and demodulate digital data, and also includes a digital interface module configured to transmit and/or receive the digital data, over a digital communication pathway, between the indoor communication unit and an external outdoor communication unit. The advanced architecture further includes an outdoor communication unit having a digital interface module configured to transmit and/or receive the digital data, over the digital communication pathway, between the outdoor communication unit and an external indoor communication unit, and also includes a digital to analog converter configured to convert the digital data to analog data and an analog to digital converter configured to convert the analog data to the digital data, and further includes an RF module configured to convert the analog data between a baseband and a radio frequency.

Abstract: A system and method for integrating line-rate application recognition in a switch ASIC. Switching platforms can be built using this feature with a conventional control plane processor rather than a more expensive specialized processor. A deep packet inspection system can be embodied in a switch ASIC using a flow tracker and a signature matching engine. The flow tracker can be positioned in an ingress portion of the switch ASIC at a location where packets in a bi-direction flow can be observed and recorded. The flow tracker generates a signature match request that is forwarded to a signature matching engine in an auxiliary pipeline. The signature matching engine analyzes packets using signature matching state machine and reports the signature matching results to the flow tracker using a response packet that is sent to the ingress pipeline.

Abstract: A microwave backhaul architecture having a dual channel over a single interconnect is provided. The backhaul architecture includes an indoor communication unit and an outdoor communication unit (ODU), which may include an N-Plexer configured to perform decouple one or more transmitted signals from one or more received signals. The ODU also includes an RF module, an analog-to-digital/digital-to-analog converter (ADC/DAC) and a digital signal processor (DSP) configured to process received data in the digital domain such that errors may be detected and/or corrected. Further, the backhaul architecture is configured to allow two transmission channels and two receipt channels to coexist on the single interconnect. The single interconnect may be implemented such that the two transmission and receipt Channels may support communication at a highest possible baud rate.

Abstract: A communication system includes a conversion module configured to convert a signal between a radio frequency baseband (RF-BB) and an intermediate frequency (IF). At least one RF front-end module converts the signal between the IF and a radio frequency (RF). The RF front-end module is configured as an RF phased array and includes a coaxial interconnect configured to connect the conversion module with the RF front-end module. The signal is transmitted between the conversion module and the RF-front end module via the coaxial interconnect. At least one RF front-end module includes an active front-end (AFE) configured to allow the signal to be transmitted via the coaxial interconnect while minimizing any deterioration of the signal.

Abstract: Embodiments describe a method of measuring noise and interference within transceivers of an OFDM wireless transmission system, or similar communication system, including a number of receivers communicating with one or more base stations in cell or sector arrangements. The transmitter schedules a transmission burst for a non-existent user (receiver) using wireless transmission traffic. In an OFDM system, this corresponds to a certain set of subcarriers in the time/frequency arrangement. Thus, in the receive frame structure, the data and pilot subcarriers are guaranteed to be only noise and interference from adjacent sectors. The receiver can accurately measure the noise and interference without needing to cancel out the transmitted signal. Therefore, the system is assured that there is no desired signal as part of this measurement. The noise and interference measurement process can be appropriately scheduled so that it does not impact the overall throughput of the system.

Abstract: There is presented a high bandwidth circuit for high-speed transceivers. The circuit may comprise an amplifier combining capacitor splitting, inductance tree structures, and various bandwidth extension techniques such as shunt peaking, series peaking, and T-coil peaking to support data rates of 45 Gbs/s and above while reducing data jitter. The inductance elements of the inductance tree structures may also comprise high impedance transmission lines, simplifying implementation. Additionally, the readily identifiable metal structures of inductors and t-coils, the equal partitioning of the load capacitors, and the symmetrical inductance tree structures may simplify transceiver implementation for, but not limited to, a clock data recovery circuit.

Abstract: Methods, systems, and devices are provided for managing flow of datagram traffic, generally across networks. According to some of these methods, a flow control mechanism is used to avoid over-subscription of some ports without pausing extended areas of a network. According to other methods, a congestion control mechanism is used to minimize datagram traffic between a port sending datagrams to an over-subscribed port and the over-subscribed port itself.

Abstract: A game controller with a communications interface, at least one touch sensitive pad having a plurality of touch sensitive elements, and processing circuitry coupled to the communications interface and the at least one touch sensitive pad. The processing circuitry enacts touch pad configuration settings that correlate subsets of the plurality of touch sensitive elements to respective distinct user input locations. The processing circuitry receives touch pad input from the at least one touch sensitive pad. The touch pad input corresponds to a user's touch of at least some of the plurality of touch sensitive elements. The processing circuitry processes the touch pad input to determine user input directions based upon the touch pad configuration settings, and then transmits the touch pad input directions to a game console via the communications interface for use as gaming input.