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| Number | Title | Issue Date |
| 8183698 | Bond pad support structure for semiconductor device According to certain embodiments, integrated circuits are fabricated using brittle low-k dielectric material to reduce undesired capacitances between conductive structures. To avoid permanent damage to such dielectric material, bond pads are fabricated with support ... | 05/22/2012 |
| 8181258 | Access control list constructed as a tree of matching tables Techniques are disclosed for generating a representation of an access control list, the representation being utilizable in a network processor or other type of processor to perform packet filtering or other type of access control list based function. A plurality of ... | 05/15/2012 |
| 8180600 | Input/output buffer information specification (IBIS) model generation for multi-chip modules (MCM) and similar devices In one embodiment, the invention is a method for modeling electrical behavior of a packaged module having multiple integrated circuits (ICs), such as a multi-chip module (MCM). The method includes: (a) identifying one or more pin groups in the module, wherein a pin ... | 05/15/2012 |
| 8176367 | Systems and methods for managing end of life in a solid state drive Various embodiments of the present invention provide systems and methods for managing solid state drives. As an example, a storage system is described that include at least a first flash memory block and a second flash memory block, and a control circuit. The first ... | 05/08/2012 |
| 8175562 | Automatic gain control for enhanced bit error rate performance An apparatus including automatic gain control (AGC) includes at least one variable gain amplifier (VGA) operative to receive an input signal and to generate an amplified signal. A gain of the VGA is controlled as a function of at least a first control signal. The ap... | 05/08/2012 |
| 8175179 | Calculating peak-to-average power ratio reduction symbols for multi-carrier modulated signals using a gradient-descent approach In one embodiment, the present invention is a method for reducing the peak-to-average power ratio (PAPR) of a multi-carrier modulated symbol, such as an orthogonal frequency division multiplexed (OFDM) symbol. The method first transforms a set of data symbols into a... | 05/08/2012 |
| 8174784 | Systems and methods for inter-location control of storage access Various embodiments of the present invention provide systems and methods for controlling access to a magnetic storage medium. As one example, a method for controlling access to a magnetic storage medium is disclosed that includes providing a location count indicatin... | 05/08/2012 |
| 8171269 | Branch target buffer with entry source field for use in determining replacement priority Various embodiments of the present invention provide systems and methods for branch prediction. As an example, some embodiments of the present invention provides processor circuits that include a program address circuit, a branch target buffer, a branch prediction r... | 05/01/2012 |
| 8170165 | Clock calibration in sleep mode In one embodiment, an improvement is described for synchronization between devices in, e.g., a wireless network, wherein at least one device includes both a slow clock and a fast clock for different modes of operation. The fast clock for an active mode of operation ... | 05/01/2012 |
| 8169891 | Apparatus and method for handling lost cells in a communications system A method of processing cells in a communication system includes obtaining a cell, causing it to be stored, determined if it is associated with a loss event, and if so, causing it to be tagged with a lost cell indicator. An apparatus for processing cells includes a c... | 05/01/2012 |
| 8169844 | Memory built-in self-characterization A memory circuit includes an operational memory and a monitor circuit comprising a circuit element in the operational memory and/or a circuit element substantially identical to a corresponding circuit element in the operational memory. The monitor circuit is operati... | 05/01/2012 |
| 8165257 | Methods and apparatus for interface buffer management and clock compensation in data transfers A circuit for data stream buffer management, lane alignment, and clock compensation of data transfers across a clock boundary using a single first in first out (FIFO) buffer in each serial channel is described. The RapidIO® data channel, for example, operates using... | 04/24/2012 |
| 8165253 | Methods and apparatus for serializer/deserializer transmitter synchronization Methods and apparatus are provided for serializer/deserializer transmitter synchronization. A plurality of channels are synchronized in one or more serializer/deserializer devices by generating a synchronization request in one or more of the channels; generating an ... | 04/24/2012 |
| 8165149 | Medium reservation with channel selectivity A medium-reservation mechanism improves transmission efficiency in a multiple-channel network that includes stations with limited-selectivity receivers. The mechanism employs a medium-request signal that conveys channel information. In this network, stations check t... | 04/24/2012 |
| 8161431 | Integrated circuit performance enhancement using on-chip adaptive voltage scaling Techniques for enhancing the performance of an IC are provided. A method of enhancing IC performance includes the steps of: associating at least one performance result of at least one performance monitor, formed on the IC, with deterministic combinations of IC perfo... | 04/17/2012 |
| 8161357 | Systems and methods for using intrinsic data for regenerating data from a defective medium Various embodiments of the present invention provide systems and methods for data regeneration. For example, a system for data regeneration is disclosed that includes a data input derived from the medium. A data detector and a data recovery system receive the data i... | 04/17/2012 |
| 8161348 | Systems and methods for low cost LDPC decoding Various embodiments of the present invention provide systems and circuits that provide for LDPC decoding and/or error correcting. For example, various embodiments of the present invention provide LDPC decoder circuits that include a soft-input memory, a memory unit,... | 04/17/2012 |
| 8161345 | LDPC decoders using fixed and adjustable permutators In one embodiment, the present invention is a low-density parity-check (LDPC) decoder that has a plurality of variable node units (VNUs) that generate variable node messages and a plurality of check node units (CNUs) that generate check node messages. The variable n... | 04/17/2012 |
| 8160263 | Noise reduction by mobile communication devices in non-call situations In a preferred embodiment, the invention is a mobile communication device having a digital signal processor (DSP), a speaker output node, a local audio source, and an analog front-end (AFE), wherein: (1) the DSP receives a first audio signal corresponding to sound c... | 04/17/2012 |
| 8156402 | Memory device with error correction capability and efficient partial word write operation A memory device comprises a memory array and error correction circuitry coupled to the memory array. The memory device is configured to perform at least a partial word write operation and a read operation, with the partial word write operation comprising a read phas... | 04/10/2012 |
| 8153484 | Metal-oxide-semiconductor device having trenched diffusion region and method of forming same An MOS device includes a semiconductor layer of a first conductivity type and first and second source/drain regions of a second conductivity type formed in the semiconductor layer proximate an upper surface of the semiconductor layer. The first and second source/dra... | 04/10/2012 |
| 8150955 | Wireless LAN with channel swapping between DFS access points The present invention enhances the dynamic frequency selection 9DFS) algorithms used in Wireless LANs by adding a channel swapping mechanism. The aim of the traditional DFS algorithm is to dynamically select channels in a wireless LAN in such a way that the best per... | 04/03/2012 |
| 8149971 | Multiple-branch wireless receiver A wireless receiver detects signals received at two or more antennas, with each antenna coupled to an input receive chain. A switch is employed to couple selected input receive chains to one or more corresponding output receive chains during listening, coarse-detect... | 04/03/2012 |
| 8149527 | Systems and methods for reducing attenuation of information derived from a defective medium Various embodiments of the present invention provide systems and methods for data regeneration. For example, a method for data regeneration is disclosed that includes receiving a data input derived from a medium, determining a media defect corresponding to the data ... | 04/03/2012 |
| 8143696 | Integrated circuit inductors with reduced magnetic coupling An IC inductor structure is provided which includes a first inductor element formed on a semiconductor substrate and at least a second inductor element formed on the semiconductor substrate proximate the first inductor element. The first inductor element has a first... | 03/27/2012 |
| 8143120 | Multiple doping level bipolar junctions transistors and method for forming A process for forming bipolar junction transistors having a plurality of different collector doping densities on a semiconductor substrate and an integrated circuit comprising bipolar junction transistors having a plurality of different collector doping densities. A... | 03/27/2012 |
| 8140947 | Method and apparatus for storing survivor paths in a Viterbi detector using systematic pointer exchange Methods and apparatus are provided for storing survivor paths in a Viterbi detector. The invention maintains at least one register and at least one pointer for each state. Each register stores a bit sequence associated with a Viterbi state and each pointer points to... | 03/20/2012 |
| 8140128 | Portable cell phone and a proximity regulation system for use with a portable cell phone Proximity regulation systems for use with a portable cell phone and portable cell phones are disclosed. In one embodiment, a portable cell phone includes a proximity regulation system having a location sensing subsystem configured to determine a location of a portab... | 03/20/2012 |
| 8139677 | Method for selecting constellation rotation angles for quasi-orthogonal space-time and space-frequency block coding In one embodiment, the present invention generates a single rotation angle that may be used to maximize diversity of a quasi-orthogonal space-time block code that encodes groups of four data symbols. Two rotation angles corresponding the first two data symbols in a ... | 03/20/2012 |
| 8139457 | Systems and methods for low latency media defect detection Various embodiments of the present invention provide systems and methods for media defect detection. For example, a media defect detection systems is disclosed that includes a data input derived from a medium, a fast envelope calculation circuit that receives the da... | 03/20/2012 |
| 8139412 | Systematic error correction for multi-level flash memory In accordance with exemplary embodiments, a multi-level flash memory employs error correction of systematic errors when reading multi-level flash memory. Error correction includes i) detection of each systematic error, ii) feedback of the systematic error to circuit... | 03/20/2012 |
| 8135425 | System and method for communicating data over a radio frequency voice channel A system or method for communicating data over a voice channel between a transmitter and a receiver. In one embodiment, the system includes: (1) a silence detector, coupled to the transmitter, that identifies a pause in voice traffic that is to be transmitted over t... | 03/13/2012 |
| 8134188 | Circuits and methods for improved FET matching Various embodiments of the present invention provide circuits and methods for improved FET matching. As one example, such methods may include providing two or more transistors. Each of the transistors includes a channel that varies in cross-sectional width from the ... | 03/13/2012 |
| 8133799 | Controlling warping in integrated circuit devices Techniques for integrated circuit device fabrication are provided. In one aspect, an integrated circuit device comprises a base, at least one die attached to the base, and a counterbalancing layer on at least a portion of at least one side of the base adapted to com... | 03/13/2012 |
| 8132027 | Transformerless power over ethernet system In one embodiment, a powered device (PD) (402) has a PHY module (410) and a media access controller (419) (MAC), the PD (402) adapted to connect to power sourcing equipment (PSE) via a cable, (408) where the PD (402) is adap... | 03/06/2012 |
| 8131308 | Active-call intercom-enabled cordless telephone A method of using an intercom on a cordless telephone during an active call. The active call is put on hold while the intercom is in use. Once the call is re-activated, the intercom is shut off. This system may be designed for a cordless telephone with one handset o... | 03/06/2012 |
| 8130860 | Method and apparatus for preamble training with shortened long training field in a multiple antenna communication system Methods and apparatus are provided for communicating data in a multiple antenna communication system having N transmit antennas. According to one aspect of the invention, a header format includes a legacy preamble having at least one legacy long training field and a... | 03/06/2012 |
| 8130777 | Link layer device with clock processing hardware resources shared among multiple ingress and egress links In a communication system comprising a link layer device connectable to one or more physical layer devices, the link layer device is configured using an efficient shared architecture for processing data associated with a plurality of links including at least one ing... | 03/06/2012 |
| 8126078 | Method and apparatus for reducing noise in an unbalanced channel using common mode component A method and apparatus are disclosed for reducing noise, such as external noise, cross-talk and echo, in an unbalanced channel. A cross-talk canceller is disclosed that uses a multi-dimensional finite impulse response filter to process both the differential, d, and ... | 02/28/2012 |
| 8126039 | Methods and apparatus for evaluating the eye margin of a communications device using a data eye monitor Methods and apparatus are provided for evaluating the eye margin of a communications device using a data eye monitor. The quality of a data eye associated with a signal is evaluated by sampling the signal for a plurality of different phases; evaluating the samples t... | 02/28/2012 |
