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Conexant Systems, Inc. Patents
Assignee:
Conexant Systems, Inc.
Address:
Newport Beach, CA
No. of patents:
664
Patents:


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Patent Number Title Of Patent Date Issued
RE39202 Digital video converter box for subscriber/home with multiple television sets July 18, 2006
A digital video conversion system housing multiple converter chains of units in a single main box chassis. A preferred embodiment uses only a single conditional access unit to authorize decryption of premium channels in response to a smartcard. The conversion system allows a single c
RE38678 Method and apparatus for synchronizing a data communications system to a periodic digital impair December 28, 2004
A pulse code modulation modem system is configured to transmit data from a first modem to a second modem over the public switched telephone network (PSTN). The PSTN employs robbed bit signaling (RBS) such that symbols affected by RBS arrive at the second modem in a periodic manner based
8588417 Systems and methods for multicast retransmission over a secure wireless LAN November 19, 2013
Systems and methods for broadcast and multicast retransmissions within a protected wireless communications system are described. Retransmitted broadcast or multicast frames are designated by modification of fields or subfields in the MAC header of the frame which are constituent parts of
8587287 High-bandwidth linear current mirror November 19, 2013
High linearity is essential in audio circuitry. As sampling rates for audio applications are needed, high speed and high linearity are needed in analog and mixed signal portions of audio circuitry such as in current mirrors. A current mirror employs two current paths in an output. The
8581661 Audio programmable gain amplifier with automatic reconfiguration November 12, 2013
A reconfigurable amplifier comprising a first operational amplifier having two inputs and an output. A second operational amplifier having two inputs and an output. A plurality of switches coupled to the two inputs and the output of the first operational amplifier and the two inputs
8578398 Regular expression selection for configurable application data steering November 5, 2013
A system for application management. A plurality of applications, each having an associated precedence, an include data string and an exclude data string. A plurality of daemons, each for monitoring a data port and extracting a data stream received at the data port. A system manager for
8577065 Systems and methods for creating immersion surround sound and virtual speakers effects November 5, 2013
Modern electronic devices are getting more portable and smaller leading to smaller distances between speakers. In particular, computers are now so compact that the notebook computer is one of the most popular computer types. However, with the proliferation of media available in digital
8575979 Fully differential adaptive bandwidth PLL with differential supply regulation November 5, 2013
Provided is a fully differential adaptive bandwidth phase locked loop with differential supply regulation. One fully differential phase locked loop includes a differential active loop filter and regulator coupled to an output of a differential charge pump, a differential voltage-cont
8301828 Systems and methods for reliable multi-level cell flash storage October 30, 2012
Multi-level cell (MLC) flash memory has become widely used due to their capacity to store more information in the same area as a single-level cell (SLC) flash memory. This makes MLC flash memory very attractive for storing media. Flash has also traditionally been used in electronic d
8289358 Systems and methods for alignment of laser printers October 16, 2012
Laser printers are plagued with an assortment of alignment issues. In color laser printers the issues are exacerbated. Variations in distance from the mirror to the drum can lines in different color planes to vary in size. Variations in angles in the facets of the mirror can cause al
8274772 Current detection and limiting method and apparatus September 25, 2012
An apparatus for detecting and controlling current. A current detector for generating a first value that represents an amount of current being delivered to a device. A current limit circuit for generating a second value that represents a maximum permitted current level from a current
8270896 Systems and method for frequency based satellite channel scanning September 18, 2012
A satellite signal demodulator is configured to use frequency-based channel scanning to sense the presence of a channel and to obtain the frequency profile of the channel. Once the channel is identified and the profile is obtained, channel extraction is used to identify the frequency
8270002 Printing digital images with rotation September 18, 2012
A novel system (method and apparatus) for printing compressed digital images with rotation, wherein the image is rotated as an integral part of the decompression process. Furthermore, the system is configured so that selected sections of the image can be printing even as other sections o
8253610 Systems and methods for variable rate conversion August 28, 2012
Poly-phase filters are used to offer an efficient and low complexity solution to rate conversion. However, they suffer from inflexibility and are not easily reconfigured. A novel design for rate converters employ poly-phase filters but utilize interpolation between filter coefficients
8243952 Microphone array calibration method and apparatus August 14, 2012
An apparatus for providing real-time calibration for two or more microphones. A calibrator for receiving a left microphone signal and a right microphone signal and generating phase difference data. A phase and amplitude correction system for receiving one of the left microphone signa
8233414 Systems and methods for indicating buffered data at an access point using an embedded traffic in July 31, 2012
Stations in standby mode periodically wake up to check for buffered data at the access points. Traditionally, the information is available by checking the periodic beacon frame for a traffic indication map (TIM). Unfortunately, the length of beacons has steadily increased with the pr
8213809 Universal systems and methods for determining an incoming carrier frequency and decoding an inco July 3, 2012
Consumer infrared (CIR) systems typically are used in remote control systems. Most CIR systems expect a known carrier frequency and encoding scheme. However, there are many applications of a universal CIR receiver which can receive and decode CIR signals regardless of the carrier fre
8212608 Apparatus and method for a smooth powerup of a reference signal July 3, 2012
A circuit for providing a reference voltage can be widely used in audio applications. However, at startup an abrupt start in the reference signal can cause undesirable audible artifacts. A circuit employing feedback of a reference voltage to control the charging of a capacitor which prov
8170002 Systems and methods for indicating buffered data at an access point with efficient beacon handli May 1, 2012
Stations in standby mode periodically wake up to check for buffered data at the access points. Traditionally, the information is available by checking the periodic beacon frame for a traffic indication map (TIM). Unfortunately, the length of beacons has steadily increased with the pr
8165154 Systems and methods for reliable broadcast and multicast transmission over wireless local area n April 24, 2012
Broadcast and multicast (BM) systems have not been reliable in the wireless local area networks. Higher bandwidth and more reliable BM transmissions are necessitated by video and audio applications. A class of BM reliable frames is transmitted at a higher rate. The access point perfo
8160153 Hypothetical reference decoder with low start-up delays for compressed image and video April 17, 2012
In one aspect, a method for encoding pictures is provided. The method is applied to each picture in a sequence of pictures, and the method comprises the steps of assigning a pre-decoder buffer removal time to the picture; selecting, for the picture, a number of bits, wherein the time
8155139 Systems and methods for management of wireless clients April 10, 2012
Systems and methods for band hopping and power conservation in a wireless network are described. At least one embodiment is directed a method of hopping channels by a device within a wireless network. The method comprises hopping from a first channel to a target channel, resetting a
8144676 Network allocation March 27, 2012
Included are embodiments for network allocation. More specifically, one embodiment of a method includes receiving, at a first communications device, without a prior RTS signal being sent, a first clear to send (CTS) signal from a second communications device, addressed to the first c
8126038 System and method for selectable mask for LDSL February 28, 2012
The present invention overcomes various problems by defining two upstream masks (U1, U2) and two downstream masks (D1, D2) and using a mask selectable system for the long reach digital subscriber line (LDSL), in which a unique modem feature is activated during handshake to automatica
8111677 Systems and methods of combined bluetooth and WLAN signaling February 7, 2012
Disclosed herein are systems and methods of combined Bluetooth and WLAN signaling. Such systems and methods may use a Bluetooth connection to signal WLAN capabilities and to exchange WLAN security keys. Once the file transfer has started, the actual data may be transmitted over the W
8089908 Systems and methods for indicating buffered data at an access point using a traffic indication m January 3, 2012
Stations in standby mode periodically wake up to check for buffered data at the access points. Traditionally, the information is available by checking the periodic beacon frame for a traffic indication map (TIM). Unfortunately, the length of beacons has steadily increased with the pr
8085698 Piggyback acknowledgement December 27, 2011
Included are embodiments for facilitating communication. At least one embodiment of a method includes receiving first communication data from a communications device and creating an acknowledgment indicating receipt of the first communication data. Some embodiments include determining
8077647 Systems and methods for utilizing a scanning threshold to reduce power consumption December 13, 2011
Included are embodiments for utilizing a scanning threshold. More specifically, one embodiment of a method includes entering a standby mode, wherein in the standby mode, at least one component of a communications device is shutdown, and wherein in the standby mode, at least one chann
8072993 Systems and methods for communicating to a disassociated station in a protected network December 6, 2011
Stations in standby mode in a wireless local area network (WLAN) become disassociated with their access point. In the event traffic is intended for the station in standby mode, a wakeup message needs to be communicated to the station. Typically, a wakeup message could be broadcast on
8072547 Comb filter that utilizes host memory December 6, 2011
A comb filter system that utilizes host memory is disclosed. The comb filter system that utilizes host memory may include a comb filter. The comb filter system that utilizes host memory may include an allocated host memory. The comb filter system that utilizes host memory may include
8064101 White region identification to accelerate image processing for copies November 22, 2011
Provided herein is a method for accelerating the production of a standalone copy of a document by a peripheral device. The invention employs a white space map of the document to be copied. The map is generated by the ASIC chip, preferably at an early stage in the processing pipeline,
8063699 Anti-pop circuit November 22, 2011
Presently many audio chips suffer from pop issues, which is especially serious for single ended audio drivers. An audio pop is a disturbance in the output caused by a sudden transition of chip power, particularly when a chip is powered on or powered off. Furthermore, compensation network
8044690 System and method for clock-synchronized triangular waveform generation October 25, 2011
A triangular waveform generator is converted to a free running oscillator controlled by a calibration code. The free running oscillator can be synchronized to an external clock signal by comparing the external clock frequency to the frequency of the triangular waveform and adjusting the
8028298 Systems and methods for managing shared resources in a computer system September 27, 2011
An operating system is provided wherein a plurality of objects are established and registered in response to requests from hardware or software associated with the computer system. The objects include at least one type, at least one attribute, and a handle. The plurality of objects a
8027473 System and method for improved data protection in PONs September 27, 2011
Mechanisms for providing a subscriber-side interface with a passive optical network are described herein. An optical network termination (ONT) having an integrated broadband passive optical network processor is utilized to receive downstream data from an optical line termination (OLT
8022490 Micro electro-mechanical sensor (MEMS) fabricated with ribbon wire bonds September 20, 2011
A micro electro-mechanical sensor is provided. The micro electro-mechanical sensor includes a substrate, and a conducting plane disposed on the substrate. A conducting via is disposed on the substrate, such as adjacent to the conducting plane. A plurality of ribbon conductors are dis
8013440 Enhanced thermal dissipation ball grid array package September 6, 2011
In a semiconductor chip, a thermal adhesive is used to bond an internal heat spreader to an active functional die. In an alternative embodiment a dummy die is place directly on top of the active functional die and a thermal adhesive is used to bond an internal heat spreader to the dummy
7995867 Image processor and method of image rotation August 9, 2011
A method of rotating a digital image includes performing a first pass to process a selected image tile of a source image. The first pass includes copying a set of pixels of the selected image tile from a first memory to a processor memory, where the set of pixels comprises a portion of t
7990902 Facilitating transmissions in a plurality of protocols August 2, 2011
Included are embodiments for sending data in an environment with a plurality of protocols. At least one embodiment of a method includes receiving, at a communications device, an indication to send first data to an access point in a first communications protocol and determining that s
7983306 Method and apparatus for channelizing sampled broadband signal July 19, 2011
A system for isolating individual channels in a broadcast signal is provided. The system includes a plurality of multipliers, each having an input and an output. A summer coupled to the outputs of each of the plurality of multipliers is provided to generate an output. A multiplicatio
7982525 Systems and methods for driving high power stages using lower voltage processes July 19, 2011
In today's environment class-D amplifiers are used to provide an integrated solution for applications such as powered audio devices due to their advantages in power consumption and size over more traditional analog amplifiers. Due to power output requirements, the output stages of po
7974272 Remote control of a switching node in a stack of switching nodes July 5, 2011
A methods and apparatus for remote management of switching network nodes in a stack via in-band messaging are presented. Switching nodes in the stack default to reserved switching node identifiers and stacking ports default to a blocking state upon startup, restart, and reset. Each c
7952508 Noise-shaped scrambler for reduced out-of-band common-mode interference May 31, 2011
Class-D amplifiers have evolved from using binary pulse-width modulation (PWM) modulators to three-level PWM modulators. Three-level PWM drivers for audio applications offer the benefits of eliminating costly elements at the output of an audio system. However, they also introduce increas
7933045 Color conversion system and method April 26, 2011
A processor is provided that includes a primary memory and color conversion logic. The primary memory may store a first color look-up table (LUT) related to a second color space. The color conversion logic, in response to a received set of pixels having color values in a first color
7925013 System for data encryption and decryption of digital data entering and leaving memory April 12, 2011
A system is described for encryption and decryption of digital data prior to the digital data entering the memory of a digital device by generating a key, sub-key and combining the sub-key with mixed digital data, where the encryption and decryption occurs between the memory controller a
7920078 Systems and methods for variable rate conversion April 5, 2011
Poly-phase filters are used to offer an efficient and low complexity solution to rate conversion. However, they suffer from inflexibility and are not easily reconfigured. A novel design for rate converters employ poly-phase filters but utilize interpolation between filter coefficients
7915950 Method and algorithm of high precision on-chip global biasing using integrated resistor calibrat March 29, 2011
Systems and methods for providing bias currents to multiple analog circuits are disclosed. An integrated circuit comprises a calibration circuit which compares a high tolerance external component to a plurality of internal components manufactured to span the variability of the proces
7912155 Demodulator circuit March 22, 2011
The invention relates to a demodulator circuit in a communication system using a multi-carrier modulation scheme. The demodulator uses channel state information for respective carriers in the multi-carrier modulation to de-map the received data.
7907660 System and method for television signal demodulation and decoding March 15, 2011
A modem for use with a computer having a demodulator and a decoder, the modem comprises a hardware interface; a demodulator front-end having a first input and a first output, the first output of the demodulator front-end being configured to interface with the demodulator of the compu
7907557 Low power receiving March 15, 2011
The disclosed methods of low power communications facilitate high speed reception of data from an access point (AP) with low transmission latencies while remaining in power save mode as long as possible. The disclosed methods allow the client to remain in a power save state and invol
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