Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7496133 | Multi-rate on-chip OCN filter for a transceiver system An apparatus and method are disclosed to aid a transceiver chip, in a wide-band serial data communications system, in receiving data at multiple data rates. A multi-rate filter within the transceiver chip is implemented as at least one adjustable-rate filter stage a... | 02/24/2009 |
| 7492812 | RFID transceiver device An RFID transceiver device is capable of high sensitivity reception, by the reduction of noise, irrespective of the distance to the tag. The RFID transceiver device includes a delay circuit between a local oscillation circuit and a demodulation circuit, wherein the ... | 02/17/2009 |
| 7486719 | Transcoder and code conversion method A two-way conversion transcoder comprising a spectrum parameter calculation circuit that calculates a spectrum parameter for a signal produced by decoding a first code; a coefficient calculation circuit that receives the spectrum parameter and converts it to the coe... | 02/03/2009 |
| 7486720 | Training frames for MIMO stations A method transmits training frames in a MIMO system. A long sequence of training frames is transmitted from a station B to a station A via a channel of the MIMO system, in which the station A includes NA antennas and NA— | 02/03/2009 |
| 7486721 | Physical layer device having an analog serdes pass through mode A physical layer device (PLD) includes a first serializer-deserializer (SERDES) device and a second SERDES device. Each SERDES device includes an analog portion with a serial port that is configured to communicate serial data with various network devices, and a digi... | 02/03/2009 |
| 7480326 | Channel diagnostic systems and methods A system includes an adaptive filter coupled to a communication channel. The adaptive filter includes a set of adaptive filter coefficients. A memory stores a predetermined set of filter coefficient thresholds. The filter coefficient thresholds may be indicative of ... | 01/20/2009 |
| 7474693 | Electronic component notably for decoding signals modulated by a digital quadrature modulation over a large number of orthogonal carriers An input/output terminal receives a multi-channel analog signal within a predetermined frequency band, and transmits a single-channel analog signal within this frequency band. A tuning module has a reception channel based upon a two-stage down conversion to baseband... | 01/06/2009 |
| 7469004 | Transmitting and receiving arrangement for radios having a baseband component, a radio-frequency component and an interface arranged in between them A transmitting/receiving arrangement has a baseband component and a radio-frequency component that are connected via an interface. The interface has a first differential unidirectional data link for transmission of digital transmission data from the baseband compone... | 12/23/2008 |
| 7466746 | Single amplifier presale processing circuitry An device and method for a pre-sampling processing is disclosed. The pre-sampling device includes a single amplifier having a virtual ground node, and a feed back circuit connected from an output of the amplifier to the virtual ground node. The feed back circuit inc... | 12/16/2008 |
| 7463674 | Tables for determining the signal strength of a received signal in a fibre optics transceiver A transceiver that includes a receiver configured to receive a data signal, a controller, a first memory that includes a first table associated with a first set of gain values and a second table associated with a second set of gain values, and a second memory access... | 12/09/2008 |
| 7460586 | Selective signal coupling in high speed I/O circuits According to an example embodiment, a data-transfer circuit transfers high-speed input data toward an output port by coupling the data circuit selectively through a resistive-impedance circuit and a capacitive-impedance circuit to accommodate both high-frequency and... | 12/02/2008 |
| 7460584 | Networking methods and systems A network system includes integrated radio transceivers and digitizers, integrated baseband processors and device controllers, digital interfaces there between, and architectures and partitions for same. Licensing methodologies are provided for implementing the feat... | 12/02/2008 |
| 7460585 | Methods and systems for detecting defects in serial link transceivers Methods and systems for detecting defects in serial link transceivers. Defect detection includes detecting open circuits in one or more of the transmission lines, detecting short circuits between one or more of the transmission lines and a power supply, detecting sh... | 12/02/2008 |
| 7453928 | Data transmission device A data transmission device is applied to a network apparatus having an automatic crossover function, and is connected to a transmission control unit, such that the transmission control unit detects an operating status of the network apparatus and accordingly generat... | 11/18/2008 |
| 7453927 | Method and apparatus to compensate AM-PM delay mismatch in envelope restoration transmitter An RF transceiver includes an Envelope Restoration (ER) transmitter (TX) and a receiver (RX). A method includes providing the TX with a programmable delay element in at least one of an AM path and a PM path; making an RF connection between an output of the TX and an... | 11/18/2008 |
| 7443910 | PHY control module for a multi-pair gigabit transceiver A method for controlling operation of a multi-pair gigabit transceiver. The multi-pair gigabit transceiver comprises a Physical Layer Control module (PHY Control), a Physical Coding Sublayer module (PCS) and a Digital Signal Processing module (DSP). The PHY Control ... | 10/28/2008 |
| 7443911 | Communication devices capable of using system clock inputs for embedded television applications According to one embodiment of the present invention, a device may receive one of multiple frequencies at a clock input of the device; determine which of the multiple frequencies is received; and generate at least one internal clock frequency for operation of the de... | 10/28/2008 |
| 7444440 | Method and device for providing high data rate for a serial peripheral interface An improved high performance scheme is provided with a serial peripheral interface (SPI) to enable microcontroller-based products and other components and devices to achieve a higher serial transmit and receive data rate. ... | 10/28/2008 |
| 7440499 | Fractional spaced equalizer Fractional Spaced Equalizer FSEQ having adjustable coefficients ci for equalizing a reception signal of a transceiver. The transceiver comprises an echo compensator EC which generates an echo compensation signal for compensating an echo signal of the transceiver. Th... | 10/21/2008 |
| 7440496 | Apparatus and method to extend communication range Briefly, in accordance with an embodiment of the invention, an apparatus to extend communication range is provided. The apparatus may be coupled to a wireless local area network (WLAN) access point (AP) and may include at least one low noise amplifier, a power ampli... | 10/21/2008 |
| 7440494 | Method and system of bidirectional data transmission and reception A simultaneous bi-directional data transferring method includes obtaining a combined signal from a portion of a data line proximate a host device. The combined signal is a signal that combines input and output signals that are being transmitted over the data line. T... | 10/21/2008 |
| 7440495 | FPGA having AC coupling on I/O pins with an effective bypass of the AC coupling DC balance is obtained in an integrated circuit (IC) having I/O pins with AC coupling by effectively bypassing the AC coupling. The DC balance is accomplished by mixing in a known, low frequency mix signal or carrier in a circuit external to the IC and then digitall... | 10/21/2008 |
| 7440530 | Circuit for and method of optimizing the transmission of data on a communication channel A circuit for optimizing the transmission of data on a communication channel is disclosed. According to one embodiment of the invention, a circuit comprises a transmitter circuit having a programmable output characteristic and being coupled to a transmission media. ... | 10/21/2008 |
| 7436906 | Synchronous detector with high accuracy in detecting synchronization and a method therefor In a symbol timing detector, a correlator calculates a correlation value for a received radio packet signal. A peak detector compares the correlation value with a threshold value to be used, and sends, upon a correlation value detected larger than the threshold valu... | 10/14/2008 |
| 7437079 | Automatic selection of data rate for optoelectronic devices Systems, devices and methods are disclosed for automatically selecting and setting an operational data rate of an optoelectronic device. In particular, an integrated circuit includes a data rate select input for the selection and setting of the operational data rate... | 10/14/2008 |
| 7433393 | Apparatus for controlling a digital signal processor for radio isolation and associated methods A method of operating a radio-frequency (RF) circuitry and a signal-processing circuitry in a mobile telephone apparatus includes at least partially disabling the signal-processing circuitry while transmitting or receiving signals. In one example, a processor is eff... | 10/07/2008 |
| 7433426 | Adaptive hysteresis receiver for a high speed digital signal An adaptive hysteresis receiver processes a high speed digital signal. A differential receiver circuit compares the high speed digital signal to a reference voltage to generate an output signal. A register circuit latches the output signal, according to a clock sign... | 10/07/2008 |
| 7426252 | High speed transceiver receiving lower rate data A high speed transceiver operable to receive lower data rate transmissions includes an oversampling module, an aligning module, a selecting module, and a memory module. The oversampling module is operably coupled to oversample an n-bit data word at an oversampling r... | 09/16/2008 |
| 7426251 | High speed transceiver operable to receive lower data rate transmissions A high speed transceiver operable to receive lower data rate transmissions includes an oversampling module and a data recovery system. The oversampling module is operably coupled to oversample a unique alignment sequence and data of a data stream received at a first... | 09/16/2008 |
| 7424228 | High dynamic range radio frequency to optical link A communication system includes an optical transmitter which is differentially driven and an optical receiver that outputs a differential signal. The optical transmitter creates the differential drive signal from an input signal and delivers the differential drive s... | 09/09/2008 |
| 7421014 | Channel bonding of a plurality of multi-gigabit transceivers A method for channel bonding begins when a master transceiver receives a channel bonding sequence. The process continues with the master transceiver generating a channel bonding request and transmitting it and channel bonding configuration information to the slave t... | 09/02/2008 |
| 7418030 | Flexible initialization method for DSL communication systems A communication system 10 initialized using an iterative training portion is disclosed. The communication system 10 comprises a first transceiver 12 operable to communicate according to a digital subscriber line standard and a second transceiver... | 08/26/2008 |
| 7408980 | Semi-distributed power spectrum control for digital subscriber line communications A semi-distributed method of managing the spectral power over multiple digital subscriber line communication loops (LP1, LP2) is disclosed. A central office (CO) DSL transceiver (10) and a remote terminal (RT) DSL transceiver (15) communi... | 08/05/2008 |
| 7408979 | Integrated radio circuit having multiple function I/O modules An integrated radio circuit includes a receiver section, a transmitter section, an analog to digital converter section, a digital to analog converter section, a digital baseband processing module, a first dual function input/output (I/O) module, and a second dual fu... | 08/05/2008 |
| 7405719 | Using packet transfer for driving LCD panel driver electronics In a digital display device, a packet based method of driving selected pixel elements by way of associated data latches included in a column driver is disclosed. For each frame lines in a video frame, a number of video data packets are provided directly to the colum... | 07/29/2008 |
| 7406117 | XDSL multi-hybrid modem with power spectral density shaping Power spectral density shaping can be used in an XDSL system in order to adjust power spectral density properties of signals transmitted by an XDSL modem. The XDSL modem may include a power spectral density shaping filter, which can be adjusted to change the power s... | 07/29/2008 |
| 7406118 | Programmable logic device including programmable multi-gigabit transceivers A programmable logic device includes a plurality of programmable multi-gigabit transceivers, programmable logic fabric, and a control module. Each of the plurality of programmable multi-gigabit transceivers is individually programmed to a desired transceiving mode o... | 07/29/2008 |
| 7400671 | Periodic calibration for communication channels by drift tracking A method and system that provides for execution of a first calibration sequence, such as upon initialization of a system, to establish an operation value, which utilizes an algorithm intended to be exhaustive, and executing a second calibration sequence from time to... | 07/15/2008 |
| 7400670 | Periodic calibration for communication channels by drift tracking A method and system that provides for execution of a first calibration sequence, such as upon initialization of a system, to establish an operation value, which utilizes an algorithm intended to be exhaustive, and executing a second calibration sequence from time to... | 07/15/2008 |
| 7400693 | System and method of echo cancellation An economic low-complexity system and method for echo cancellation are disclosed. The system and method are particularly suited for multi-carrier VDSL using the U0 band. The techniques taught herein may be implemented in VDSL and VDSL2 systems and used to receive si... | 07/15/2008 |