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| Number | Title | Issue Date |
| 8081031 | Equalization system with stabilized peaking gain for a communication system An equalization system (18) that reduces inter-symbol interference in an input signal (220) includes a variable gain amplifier (430), and one or more peaking amplifiers (432) that are connected in series to the variable gain amplifier ( | 12/20/2011 |
| 7961050 | Integrated circuits including an equalizer and operating methods thereof An integrated circuit includes a differential amplifier. The differential amplifier includes at least one output end. A circuit is coupled with the at least one output end of the differential amplifier. The circuit does not include a resistor-capacitor (RC) network ... | 06/14/2011 |
| 7902924 | Current-controlled CMOS (C3MOS) fully differential integrated wideband amplifier/equalizer with adjustable gain and frequency response without additional power or loading Current-controlled CMOS (C3MOS) fully differential integrated wideband amplifier/equalizer with adjustable gain and frequency response without additional power or loading. A novel approach is presented by which adjustable amplification and equalizer may be achieved ... | 03/08/2011 |
| 7598811 | Current-controlled CMOS (C3MOS) fully differential integrated wideband amplifier/equalizer with adjustable gain and frequency response without additional power or loading Current-controlled CMOS (C3MOS) fully differential integrated wideband amplifier/equalizer with adjustable gain and frequency response without additional power or loading. A novel approach is presented by which adjustable amplification and equalizer may be achieved ... | 10/06/2009 |
| 7459980 | Apparatus for receiver equalization In some embodiments an apparatus includes an amplifier, a first inverter having an input coupled to an output of the amplifier, and a second inverter having an input coupled to an output of the first inverter and an output, where the output of the second inverter is... | 12/02/2008 |
| 7368989 | High bandwidth apparatus and method for generating differential signals An apparatus and method for generating differential signals. The apparatus includes a first operational amplifier receiving a first signal, a second operational amplifier receiving a second signal, and a first transistor. The first transistor includes a first gate, ... | 05/06/2008 |
| 7358800 | Programmable/tunable active RC filter A programmable/tunable active low-pass filter at least has the resistors, capacitors and shunt control means. It uses the resistor ladder that is structured with various fixed resistors to implement the shunt control means. The cut-off frequency of a filter is assoc... | 04/15/2008 |
| 7339362 | Alterable DC power supply circuit An alterable DC power supply circuit includes a regulator, a resistor, and an adjustable load resistance. The regulator includes a voltage input pin, a voltage output pin, and an adjusting pin. The resistor is coupled between the voltage output pin and the adjusting... | 03/04/2008 |
| 7321946 | Link extender having equalization circuitry An apparatus comprises a first plug to couple the apparatus to a host connection and a second plug to couple the apparatus to a display connection. The apparatus further comprises a metallic transmission medium coupled to the first plug and link extender circuitry c... | 01/22/2008 |
| 7236550 | Method and apparatus for tail cancellation equalization Subtraction of a signal 111 from a pulse response 110, where signal 111 provides a good approximation of the tail of pulse response 110, can provide a method for canceling the tail of pulse response 110. For continuous data... | 06/26/2007 |
| 7218497 | Protective circuit for protection against over-voltage for a CAN bus transceiver The invention relates to a protective circuit for a CAN-bus transceiver that is designed voltagewise for a first vehicle electric system, said transceiver being operated in a second vehicle electric system with a voltage that is several times higher than the voltage... | 05/15/2007 |
| 7209007 | Combined analog signal gain controller and equalizer An analog signal gain controller and equalizer with an increased signal bandwidth for reducing intersymbol interference (ISI) within a digital data signal. ... | 04/24/2007 |
| 7193455 | Programmable/tunable active RC filter A programmable/tunable active low-pass filter at least has the resistors, capacitors and shunt control devices. It uses the linear property of the MOSFET to implement the shunt control devices. Based on the first-ordered linear analysis of the transfer function of t... | 03/20/2007 |
| 7184099 | Controllable signal baseline and frequency emphasis circuit A circuit for selectively controlling signal baseline and frequency emphasis. An amplifier with selectively controllable feedback circuitry allows higher frequency components of a signal to be emphasized over lower frequency components while also allowing control ov... | 02/27/2007 |
| 7181123 | Video security system The invention provides a video security system for monitoring a plurality of locations simultaneously. In one embodiment, the system includes a text insertion means connected between a video camera and monitor, a control means connected to the text insertion means, ... | 02/20/2007 |
| 7174143 | Receiver circuit with transmission loss compensation Transmission loss compensation is provided for receiver circuits in general, including an ATE receiver circuit having a voltage-to-current converter, such as a transconductance amplifier, that receives a distorted DUT signal and provides an output to a current-to-vo... | 02/06/2007 |
| 7138873 | Filter circuit providing low distortion and enhanced flexibility to obtain variable gain amplification A low distortion filter circuit implementing variable gain amplification (VGA). An aspect of the present invention increases the degrees of freedom (number of components which can be independently programmed/changed to corresponding desired values) to achieve a desi... | 11/21/2006 |
| 7088082 | Regulator with variable capacitor for stability compensation A voltage regulator with a variable compensation capacitor is capable of driving a large variable dynamic current load. The regulator includes an error amplifier and an output stage amplifier. The variable compensation capacitor is disposed between the output termin... | 08/08/2006 |
| 7079818 | Programmable mutlistage amplifier and radio applications thereof A programmable multi-stage amplifier includes a 1st programmable amplifier, a 2nd programmable amplifier, and a control module. The 1st and 2nd programmable amplifiers are coupled in series to amplify an input signal. Each... | 07/18/2006 |
| 7068951 | Optical signal receiver with RPM, data and data bar output An optical signal receiver system provides for five (5) signals, namely VCC, Ground, RPM (Receiver input Power Monitor), Data, and Data Bar outputs, using only the four external pins of a conventional TO-style can package. To provide for five signals on only four pi... | 06/27/2006 |
| 7064604 | Amplifier switch The invention relates to an improved amplifier switch which for example has the following features: between an in-gate (1; 1.1, 1.2) and an out-gate (3; 3.1, 3.2) an amplifier branch (5; 5.1, 5.2) and at least one bridging line (7; 7.1, 7.2 | 06/20/2006 |
| 7057451 | Programmable/tunable active RC filter A programmable/tunable active low-pass filter at least has the resistors, capacitors and shunt control means. It uses the resistor ladder that is structured with various fixed resistors to implement the shunt control means. The cut-off frequency of a filter is assoc... | 06/06/2006 |
| 7039942 | Pad adjustable equalizer for two way cable transmission A forward signal equalizer for a forward amplifier for two-way coaxial cable systems, of the type having a distribution center distributing forward signals, and having reception facilities for receiving return signals from said cable system, the system having forwar... | 05/02/2006 |
| 7019594 | Method and apparatus for analyzing performance of a multi-stage radio frequency amplifier A method and an apparatus for analyzing performance of a multi-stage radio frequency amplifier are described. The method simplifies the multi-stage radio frequency amplifier into equivalent input parts, output parts and mid-stage parts. The mid-stage parts are tempo... | 03/28/2006 |
| 6995627 | Transmitter equalization method and apparatus A current mode output driver includes a pre-driver for pre-equalization. The current mode output driver drives a transmission line with an alternating current (AC) signal and a direct current (DC) signal. Characteristics of the transmission line are measured by comp... | 02/07/2006 |
| 6940539 | Variable cable length compensator for video imaging systems Described herein is a cable length compensator for inclusion in video imaging systems such as X-ray video imaging systems. When such systems are installed at sites of use, cables must generally be installed in the signal path, and the lengths of these cables—which... | 09/06/2005 |
| 6917245 | Absolute power detector A method and apparatus is provided for detecting the output power of a power amplifier. The output power is detected by detecting the absolute values of the voltage and current at the output of the amplifier and mixing the detected voltage and current to generate a ... | 07/12/2005 |
| 6897721 | Composite amplifier with optimized linearity and efficiency The invention relates to a composite amplifier (500) based on a main amplifier (510) and an auxiliary amplifier (520), and compensation for non-linear amplifier behavior by means of respective non-linear models (570, 575) of parasitic. In... | 05/24/2005 |
| 6838943 | Input follower system and method An equalizer circuit for equalizing first and second differential input signals comprises a differential pair, a reactive load, and first and second input followers. The differential pair defines first and second input nodes and first and second output nodes, and th... | 01/04/2005 |
| 6836184 | Network amplifier with microprocessor control A network amplifier is provided. The network amplifier includes a variable equalizer having at least one control input and a variable attenuator having at least one control input. The network amplifier also includes at least one amplifier circuit that is coupled in ... | 12/28/2004 |
| 6794936 | Equalizer system and method for predistortion A predistortion system compensates or equalizes the phase and/or amplitude response over frequency of at least a portion of a signal path prior to the distortion generating circuitry, such as an amplifier, and/or of at least a portion of a feedback path after the di... | 09/21/2004 |
| 6784745 | Adjustable current-mode equalizer A current amplifier has a variable resistor or capacitor to provide a high frequency boost. Additionally, additional transistors may be switched in and out of the circuit to provide different gains at lower frequency. The combination of variable resistors or capacit... | 08/31/2004 |
| 6785907 | Amplifier and equalizer for two way cable transmission A feed signal equalizer for a feed amplifier for two-way coaxial cable systems, of the type having a distribution centre distributing feed signals, and having reception facilities for receiving return signals from said cable system, the system having feed amplifiers... | 08/31/2004 |
| 6741140 | Circuit for receiving an AC coupled broadband signal A receiving circuit having a termination impedance and an equalization capacitor. The receiving circuit is connectable to a signal source having a source impedance through a DC (direct current) blocking capacitor. The value of the equalization capacitor is chosen su... | 05/25/2004 |
| 6710653 | D-class power amplifier with electric power regeneration function A D-class power amplifier of two channels in which an increase in power voltage due to a regenerative current is prevented and a high efficiency in utilization of electric power is attained. Two D-class power amplifying circuits included in the D-class power amplifi... | 03/23/2004 |
| 6674326 | Digitally controllable nonlinear pre-equalizer A digitally controllable nonlinear pre-equalizer system receiving an input signal and generating an output signal, the system including a splitter for dividing the input signal into a first signal path and a second signal path, an attenuator and a time de... | 01/06/2004 |
| 6608524 | Automatic gain control circuit In a state where a PLL circuit is not locked, a gain control signal according to the difference between a peak value of a reproduced signal and the upper or lower limit value of the dynamic range of an A/D converter is given to a variable gain amplifier. ... | 08/19/2003 |
| 6580327 | Electronically controllable slope equalizer The present invention provides a slope equalizer for use in a voice frequency channel card, which is preferably electronically and remotely controllable, and retrocompatible with existing telecommunication systems. The slope equalizer of the invention inc... | 06/17/2003 |
| 6531931 | Circuit and method for equalization of signals received over a communication system transmission line A circuit and method for equalization of a communication signal received over a communication system transmission line using switched filter characteristics. Equalization for frequency-independent and frequency-dependent attenuation of the communication s... | 03/11/2003 |
| 6501792 | Serial digital data communications receiver with improved automatic cable equalizer, AGC system, and DC restorer A serial digital data communications receiver with an improved automatic cable equalizer that is less susceptible to jitter and has greater multi-standards capability, and an improved automatic gain control system with a DC restorer that provides optimal ... | 12/31/2002 |
