Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 8120442 | Semiconductor device A semiconductor device includes transmission lines for conveying signals and transition detectors, each of which checks whether a transmission signal on each of the plurality of transmission lines is transited. If the signal is transited, its transition shape is det... | 02/21/2012 |
| 7855611 | Delay line calibration A tunable delay line is calibrated to maintain the delay of the delay line at a desired value or within a desired range of values. In some aspects a signal is passed through a delay line multiple times so that the cumulative delay of the signal through the delay lin... | 12/21/2010 |
| 7795991 | Integrated circuit arrangement to set a phase difference An integrated circuit arrangement (1; 2; 3; 4) for setting a predefined phase difference (phi_target) between a first high-frequency signal (x1; x1p, x1n) and a second high-frequency signal (x2; x2p, x | 09/14/2010 |
| 7683732 | Continuously adjustable equalizer There is disclosed a continuously variable equalizer. The continuously variable equalizer may include a series-tuned circuit connected between an RF signal input terminal and an RF signal output terminal. An adjustable T-pad may have an input terminal coupled to the... | 03/23/2010 |
| 7446622 | Transmission line with low dispersive properties and its application in equalization A transmission line is provided with added shunt resistance, RSH, distributed along the length of the micro transmission line permitting the extension of constant characteristic impedance to the transmission line to lower signal frequencies. The loss in g... | 11/04/2008 |
| 7443913 | High speed decision feedback equalizer An equalizer comprises a sampler, a filter, and a summer. The sampler samples a signal indicative of an input communication signal to determine digital decision output signals having a communication device data rate. The filter receives digital decision output signa... | 10/28/2008 |
| 7440035 | Cable extending device Attenuation compensation volume computing means (60, 61, 62, 63, 67, 68, 69, 70) of a signal receiver computes attenuation compensation volume of a video signal (GL, GH) on the basis of attenuation of pulses which are arranged in a digit... | 10/21/2008 |
| 7424053 | Channel equalization in data receivers Channel equalization in a 1000BASE-T receiver is performed by a fixed mode analog filter 2 suitable for the longest possible cable length, by a FFE (3), and by a digital filter 4. The digital filter (4) has two sets of taps. One set is op... | 09/09/2008 |
| 7394331 | Programmable passive equalizer Embodiments of a programmable passive equalizer are described herein. ... | 07/01/2008 |
| 7369607 | Multicarrier communication using a time domain equalizing filter Various methods and apparatus are described that use a filter. A receiver may be configured to receive multi-tone signals. The receiver has a Time Domain Equalizer filter employing an algorithm to shorten a length of an incoming impulse response to equal to or less ... | 05/06/2008 |
| 7366244 | Method and system for antenna interference cancellation A wireless communication system can comprise two or more antennas that interfere with one another via free space coupling, surface wave crosstalk, dielectric leakage, or other interference effect. The interference effect can produce an interference signal on one of ... | 04/29/2008 |
| 7358834 | Transmission line voltage controlled nonlinear signal processors Waveguide nonlinear signal processors include transmission lines defined on a substrate. A plurality of varactors or pairs of varactors are situated along the transmission line and are in communication with a signal conductor of the transmission line and one or more... | 04/15/2008 |
| 7352824 | Multilevel pulse position modulation for efficient fiber optic communication Decreasing the average transmitted power in an optical fiber communication channel using multilevel amplitude modulation in conjunction with Pulse Position Modulation (PPM). This multilevel PPM method does not entail any tradeoff between decreased power per channel ... | 04/01/2008 |
| 7315200 | Gain control for delta sigma analog-to-digital converter Gain control for delta sigma analog-to-digital converter. A method is disclosed for driving the input of an integrator in a delta-sigma converter having an amplifier with a non-inverting input, an output and a positive input connected to a reference voltage and an i... | 01/01/2008 |
| 7312833 | Channel equalizing apparatus and method for digital television receiver Disclosed is a channel equalizing apparatus and method for a digital television receiver that performs channel equalization using equalizing algorithms. The channel equalizing apparatus includes a channel equalizing section for compensating for channel distortion us... | 12/25/2007 |
| 7301997 | Method and apparatus for improved high-speed adaptive equalization A method and apparatus for improved high-speed adaptive equalization that may operate effectively even in systems experiencing severe interference by using one or more error generators and taking multiple samples across a bit interval. Advantageously, a preferred em... | 11/27/2007 |
| 7298207 | Automatic gain control for a multi-stage gain system Systems and methods are disclosed for providing automatic gain control of a multi-stage system. A method can include defining at least one parameter that is adapted to at least one of maximize hardware capacity of each of a plurality of gain stages and mitigate part... | 11/20/2007 |
| 7289575 | Signal processing means A non-linearity generator operates on a signal between a frequency converter and an amplifier and acts as a postdistorter for the component it follows and as a predistorter for the component it precedes, thus linearizing the overall input-output characteristic of th... | 10/30/2007 |
| 7289557 | Adaptive equalization using a conditional update sign-sign least mean square algorithm An adaptive equalizer finite impulse response (FIR) filter for high-speed communication channels with modest complexity, where the filter is iteratively updated during a training sequence by a circuit performing the update: h(t+1 | 10/30/2007 |
| 7289680 | Methods and apparatus for minimizing requantization error According to the present invention, methods and apparatus for performing error minimizing requantization are provided. Quantized coefficients associated with a bitstream are received. It is determined whether the quantized coefficients are associated with an inter m... | 10/30/2007 |
| 7289007 | Temperature compensated variable tilt equalizer A temperature compensated variable tilt equalizer configured to operate over a defined frequency range. The equalizer includes an RF input, an automatic temperature compensation circuit and a manual alignment circuit. The RF input receives an RF signal having a wide... | 10/30/2007 |
| 7289556 | Apparatus and method for compensating signal attenuation based on an equalizer An apparatus and a method for compensating signal attenuation based on an equalizer. The apparatus Includes an auto gain controller, an analog-to-digital converter and an auto-gain-control mapping circuit. The auto gain controller is used for receiving an incoming a... | 10/30/2007 |
| 7283586 | Adaptive equalizer matched filter error metric concept and apparatus A correlative error detection system (60) for a signal equalizer (10) that corrects a distorted communications signal. The detection system (60) correlates a sequence of bits in a signal from an FFE and/or a DFE processor (12, 14) with a ... | 10/16/2007 |
| 7277480 | System and method of equalization of high speed signals In one aspect, the present invention is directed to a technique of, and system for enhancing the performance of high-speed digital communications through a communications channel, for example a backplane. In this aspect of the present invention, a transmitter includ... | 10/02/2007 |
| 7272187 | Filter circuit and radio apparatus A distributor 103 distributes an input signal into two lines of distributed signals with equal amplitudes and equal phases. Buffers 104, 105 suppress interference between distributed signals distributed into the two lines. A filter 106 performs ... | 09/18/2007 |
| 7260213 | Telephone echo canceller The invention relates to an echo canceling device and method for an arrangement for transmitting audio signals, in particular uttered speech with an echo filter for canceling echo. The echo filter is arranged between an input channel (1) and an output channel... | 08/21/2007 |
| 7260146 | Equalizing method and apparatus for single carrier system having an improved equalization performance Equalizing method and apparatus for single carrier system having an improved equalization performance is disclosed, which includes: a section setting unit for setting filter taps having a predetermined section corresponding to the predicted multi-path; a repeat sett... | 08/21/2007 |
| 7254172 | Filter control for varying data rate communication channels Processing circuitry includes an analog filter and filter control circuitry and processes an analog signal having a varying data rate. The analog filter filters the analog signal based on a transfer characteristic to transfer a filtered signal. The filter control ci... | 08/07/2007 |
| 7254171 | Equaliser for digital communications systems and method of equalisation Equalisation of a communication channel is achieved through use of a Wiener filter frequency response mechanism that operates to transform at least a portion of a data stream generated from a plurality of space time coded (STC) symbol streams received from a plurali... | 08/07/2007 |
| 7254198 | Receiver system having analog pre-filter and digital equalizer A receiver system suitable for a local area network contains an analog pre-filter (207 or 619), an analog-to-digital converter (210), a digital equalizer (212), and a decoder (605). A symbol-information-carrying input analog signal... | 08/07/2007 |
| 7242157 | Switched-voltage control of the magnetization of current transforms and other magnetic bodies The magnetic flux of a magnetic body is controlled with voltage pulses from an active voltage source. The voltage pulses are applied to a winding circuit which is magnetically coupled to the magnetic body. An electronic switch means is used to generate the voltage p... | 07/10/2007 |
| 7233616 | Arrangement for initializing digital equalizer settings based on comparing digital equalizer outputs to prescribed equalizer outputs A physical layer transceiver, configured for retrieving signal samples from a prescribed network medium having an undetermined length, includes a digital feedforward equalizer, configured for generating equalized signal samples from the retrieved signal samples and ... | 06/19/2007 |
| 7233617 | System and method of equalization of high speed signals In one aspect, the present invention is directed to a technique of, and system for enhancing the performance of high-speed digital communications through a communications channel, for example a backplane. In this aspect of the present invention, a transmitter includ... | 06/19/2007 |
| 7230989 | System and method for processing digital visual interface communication data signals and display data channel communication signals over a transmission line A digital communication system for transmitting and receiving Digital Visual Interface (DVI) communication data signals and Display Data Channel (DDC) communication signals over a transmission line comprises an open-loop equalizer circuit and a DDC extension circuit... | 06/12/2007 |
| 7218672 | Apparatus and method for constraining the value of feedback filter tap coefficients in a decision feedback equalizer An apparatus and method is disclosed for reducing error propagation in a decision feedback equalizer by constraining the values of feedback filter tap coefficients in a feedback filter of the decision feedback equalizer. The feedback filter tap coefficients that are... | 05/15/2007 |
| 7215144 | Pre-emphasis driver with constant impedance An apparatus and method is disclosed for transmitting signals over a signal conductor using a precompensated driver that does not use a current source, and which drives the signal conductor with an impedance similar to the characteristic impedance of the signal cond... | 05/08/2007 |
| 7215721 | Method and system for decoding multilevel signals A multilevel optical receiver can comprise a plurality of comparators that generally correspond with the number of levels in a multilevel data stream. Each comparator can be individually controlled and fed a decision threshold in order to decode a multilevel signal.... | 05/08/2007 |
| 7212580 | Multi-level signal clock recovery technique Clock recovery of a multi-level (ML) signal can be performed in a two-step process. First, the transitions within the ML signal can be detected by a novel transition detector (TD). And second, the output of the TD circuit can comprise a pseudo-non-return-to-zero (pN... | 05/01/2007 |
| 7206341 | System and method for providing equalization in a multiphase communications receiver A circuit and method for receiving digital signals are disclosed. The circuit includes an input connected to a communications channel over which a digital signal is communicated and operates a plurality of multiple decision circuits at a frequency that is a fraction... | 04/17/2007 |
| 7200768 | Synchronous data transfer system for time-sensitive data in packet-switched networks A transmission arrangement and method permits time-sensitive data to be transmitted through a packet-switched network and arrive synchronously at separate end points without synchronising all payload carrying nodes in the network. This is achieved by propagating a t... | 04/03/2007 |
