Abstract: Various embodiments are disclosed for encoding and decoding VLAN identifiers. One such method includes mapping the VLAN identifier, associated with the frame, to a number of extra bytes. The method also includes appending, to the payload, a quantity of bytes equal to the number of extra bytes. The method also includes setting at least one of the appended bytes to a value of a length provided with the frame. The method also includes transmitting the frame, including the appended bytes.

Abstract: According to one exemplary embodiment, a front-end system for processing a composite wideband signal comprises a pre-receiving unit including a multiplexer for separating the composite wideband signal into a plurality of filtered signals. The front-end system further comprises a plurality of discrete frequency band outputs corresponding to the plurality of filtered signals, and a tuner/down-converter coupled to at least one of the plurality of discrete frequency band outputs. In one embodiment, the pre-receiving unit of the front-end system further comprises a second multiplexer for separating at least one of the plurality of filtered signals into a second plurality of filtered signals. In one embodiment, the pre-receiving unit may further comprise a low noise amplifier for processing at least one of the plurality of filtered signals before it is input to the second multiplexer.

Abstract: There is provided a mechanism for controlling communications conducted in multiple frequency bands so as to decrease an interference level between the communications. When an interference situation caused between a first set UL communications performed on at least two different frequency bands and a DL communication performed on another frequency band is determined, a frequency carrier deactivation processing is conducted so as to deactivate either one of carriers of the at least two frequency bands of the set of UL communications. The deactivation processing includes for example an autonomous denial on the UE side or an interference reporting with deactivation on the eNB side.

Abstract: Systems and methods are provided, for estimating a channel based on previous channel estimations from the same source. Embodiments disclosed herein enable removal of the timing variation (from burst to burst) so that the channel can be more accurately estimated. Embodiments provide several systems and methods for averaging channel estimation information from each of the bursts. The systems and methods disclosed herein advantageously improve channel estimation accuracy and reduce modulation error.

Abstract: According to one exemplary embodiment, a fin-based adjustable resistor includes a fin channel of a first conductivity type, and a gate surrounding the fin channel. The fin-based adjustable resistor also includes first and second terminals of the first conductivity type being contiguous with the fin channel, and being situated on opposite sides of the fin channel. The fin channel is lower doped relative to the first and second terminals. The resistance of the fin channel between the first and second terminals is adjusted by varying a voltage applied to the gate so as to achieve the fin-based adjustable resistor. The gate can be on at least two sides of the fin channel. Upon application of a depletion voltage, the fin channel can be depleted before an inversion is formed in the fin channel.

Abstract: A method and system are provided in which a video channel is selected from multiple video channels in a video processor. A picture quality profile associated with a content of the selected video channel is received by the video processor to modify a value of one or more picture quality control parameters utilized by the video processor that are mapped to a user level setting. Metadata associated with the content of the selected video channel may be determined and communicated to a server. The server may utilize the metadata to determine a picture quality profile for the video processor. In some instances, environmental conditions associated with a television or display device may be measured and communicated to the server to determine the picture quality profile. For example, the measured environmental conditions may comprise one or more of an ambient light, a sound, a motion, and a temperature measurement.

Abstract: A method, apparatus and computer program product are provided in order to allow for reselection of a TTI resource, such as in an instance in which a mobile terminal has moved to a different portion of the coverage area and/or in an instance in which the TTI resource was initially incorrectly selected, such as based upon an inaccurate measurement. In the context of a method, a first TTI resource is selected in conjunction with an uplink. The method also detects a failure condition associated with the uplink and selects a second TTI resource, different than the first TTI resource, in response to detection of the failure condition.

Abstract: A system, method, and apparatus for handling transition errors is presented herein. The transition errors include handling unreported time base discontinuities during trick mode transition, miscalculated time stamps during trick mode transition, erroneous sequence end codes, and unreported broken group of picture transmission. Unreported time base discontinuities are detected by comparing the program clock reference (PCR) value of the data packet to the system time clock (STC). If the difference exceeds a predetermined threshold, the STC is set to the PCR value. Miscalculated time stamps are detected by examining the difference in PTS values between temporally adjacent data packets. If the difference is not within a margin of error from predetermined value, the PTS is disabled. Unreported broken groups of pictures are handled by skipping the first two B-frames of the first group of pictures following a trick mode transition.

Abstract: A system for securing a variable length keyladder key includes a keyladder decryptor configured to alter a first layer key and to execute a keyladder algorithm to generate a content key, the keyladder algorithm to generate the content key by decrypting an encrypted second layer key with the altered first layer key. The alteration mirrors the alteration applied to encrypt the second layer key by a content server providing content data to be decrypted. The system may further include a cryptographic direct memory access controller (DMAC) coupled with the keyladder decryptor and to decrypt encrypted content data using the generated content key. The keyladder decryptor may be further configured to send the content key to be stored in the DMAC without information regarding how the first layer key was altered. The alteration may include a permutation function or other change or modification.

Abstract: A multi-mode line driver circuit designed to be fabricated in a CMOS process and capable of supporting a plurality of operating modes corresponding, for example, to different profiles of communication standards such as xDSL standards. The line driver circuit incorporates integrated mode switches with a two-stage amplifier architecture to relax amplifier requirements by distributing the signal gain into two amplifier stages. Reconfigurable feedback loops are provided to permit design optimization for particular modes of operation (e.g., ADSL and VDSL compliant modes). In one embodiment implemented as a Class-H amplifier, lift amplifier(s) are provided between a first amplifier stage and a second amplifier stage for controlling voltage supply levels of the second amplifier stage. The lift amplifiers may be enabled by voltage threshold detection circuitry that monitors either the input or the output signals of the first amplifier stage depending on the operable transmission mode.

Abstract: A wireless communication device is configured to perform clear channel assessment (CCA) using one or more CCA levels that are selected based on various criteria. The device receives or detects one or more packets on the communication medium, and the device then processes those one or more packets to determine status of one or more channels within one or more frequency bands using the one or more CCA levels. These CCA levels may be selected based on one or more parameters, and different CCA levels may be used at different times, for different channels, etc. Also, different CCA levels may be used to determine the status of different channels, different portions of the frequency spectrum, etc. When at least one channel is determined as being clear and available for usage, the device is configured to support communications with one or more other devices via one or more channels.

Abstract: In various embodiments, a system includes a switch comprising a resource that is shared between multiple objects. The switch comprises circuitry that determines a congestion metric for the switch in response to an amount of used of the resource by the objects. The circuitry determines a feedback parameter that is responsive to the congestion metric. The circuitry generates a congestion notification message that comprises a congestion feedback value responsive to the feedback parameter. In further embodiments, a system includes a switch that processes data for a first data link layer access network. The switch includes circuitry that identifies whether a received packet originated from a source device that shares the same network layer access layer as the switch. If the source device shares the same network layer access network as the switch, the circuitry generates a congestion notification message comprising a congestion feedback value for the switch.

Abstract: A method, apparatus and computer program facilitate the assignment of stations to slots of a restricted access window (RAW) to support communications between the stations and an access point. In a method for use in an access point, a broadcast message is caused to be provided to the station(s). The broadcast message includes an indication of a type of stations to access the RAW and one or more of a duration of the slot(s) in the RAW allocated to a first type of station, a duration of the RAW allocated to the first type of station, a duration of the slot(s) in the RAW allocated to a second type of station or a duration of the RAW allocated to the second type of station. The method also provides for access for one or more stations of the type that was indicated within the slots of the RAW.

Abstract: Multiple input multiple output systems using a transmit precoder codebook designed for a four-transmitter (4Tx) antenna configuration are described. The 4Tx antenna configuration is an attractive option for base stations in cellular network environments and it is desirable to use a transmitter precoder codebook that provides sufficient granularity in typical operating scenarios, and to address various antenna configurations. In an embodiment, the transmit precoder codebook can be used for a variety of transmit antenna configurations including uniform linear antenna arrays, cross-polarized antenna arrays and uncorrelated antenna arrays. In another embodiment, the transmit precoder codebook is a two-component codebook, with a first precoder component signaled at a first rate and a second precoder component signaled at a second higher rate.

Abstract: A sequence of data within a bitstream may be determined. An offset value corresponding to a location of a validity code within the bitstream may be determined, relative to the sequence of data. A marker code and the offset value may be inserted into the bitstream in association with the sequence of data. Also, a received bitstream may be scanned to determine a potential marker code, a potential offset value may be determined, based on the potential marker code. A validity code within the bitstream may be determined, based on the potential offset value, and a validity of the potential marker code may be determined, based on the validity code.

Abstract: A security processing system includes one or more micro-cores that can operate in conjunction with one or more security cores to process packets. The micro-core can perform any suitably programmed tasks upon packets, such as encryption/decryption and authentication tasks. The combination of having both the hard-coded security engines and the programmable micro-core within the same system permits the security system to effectively obtain the benefit of the speed and performance advantages of having dedicated security hardware, in addition to the flexibility and expandability of being able to use a programmable micro-core.

Abstract: The present application discloses various implementations of a semiconductor package including an organic substrate and one or more interposers having through-semiconductor vias (TSVs). Such a semiconductor package may include a contiguous organic substrate having a lower substrate segment including first and second pluralities of lower interconnect pads, the second plurality of lower interconnect pads being disposed in an opening of the lower substrate segment. The contiguous organic substrate may also include an upper substrate segment having an upper width and including first and second pluralities of upper interconnect pads. In addition, the semiconductor package may include at least one interposer having TSVs for electrically connecting the first and second pluralities of lower interconnect pads to the first and second pluralities of upper interconnect pads. The interposer has an interposer width less than the upper width of the upper substrate segment.

Abstract: Embodiments provide improved memory bitcells, memory arrays, and memory architectures. In an embodiment, a memory cell comprises a transistor having drain, source, and gate terminals; and a plurality of program nodes, with each of the program nodes charged to a pre-determined voltage and coupled to a respective one of a plurality of bit lines.

Abstract: Disclosed is a power-efficient multi-mode charge pump. The charge pump comprises a first pumping circuit that provides at least one output voltage produced by a discharge sequence of a shared flyback capacitor. The charge pump also comprises a second pumping circuit that provides a plurality of output voltages produced by a corresponding plurality of discharge sequences of the shared flyback capacitor. The charge pump may include a transition circuit to selectably enable the first pumping circuit or the second pumping circuit. In one embodiment, the first pumping circuit may employ a two-phase discharge sequence. In another embodiment, the second pumping circuit may employ a three-phase plurality of discharge sequences. A related method is also disclosed.

Abstract: A system and method for determining, based at least in part on communication device position, whether access to an alternative communication network is authorized. Various aspects of the present invention may, for example and without limitation, comprise determining a position of a mobile communication device serviced by a communication network; determining, based at least in part on the determined position of the mobile communication device, whether the mobile communication device is authorized to access an alternative communication network; and communicating information regarding said determined authorization.