| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 333172000 | RC or RL type | 31 |
| 20080197940 | Method of making an orientation-insensitive ultra-wideband coupling capacitor - A method of making an orientation-insensitive ultra-wideband coupling capacitor, including the steps of securing an unterminated multi-layer capacitor of a low frequency portion of the orientation-insensitive ultra-wideband coupling capacitor, coating completely the unterminated multi-layer capacitor of the low frequency portion with an adhesion layer having opposing ends, creating a circumferential slot around the adhesion layer and thereby electrically separating the opposing ends of the adhesion layer from each other thereby restoring capacitance and forming a slotted body, applying a solder dam coating to all surfaces defining the circumferential slot to protect the circumferential slot, and plating the opposing ends of the adhesion layer so as to form solderable connections and thereby form the orientation-insensitive ultra-wideband coupling capacitor. | 08-21-2008 |
| 20080297274 | CAPACITIVE/RESISTIVE DEVICES, ORGANIC DIELECTRIC LAMINATES AND PRINTED WIRING BOARDS INCORPORATING SUCH DEVICES, AND METHODS OF MAKING THEREOF - This invention relates to a capacitive/resistive device, which may be embedded within a layer of a printed wiring board. Embedding the device conserves board surface real estate, and reduces the number of solder connections, thereby increasing reliability. More specifically, the device, comprises a first metallic foil; a second metallic foil; a first electrode formed from the first metallic foil; a dielectric disposed over the first electrode; a resistor element formed on and adjacent to the dielectric; a conductive trace; and a second electrode formed from the second metallic foil and disposed over the dielectric and in electrical contact with the resistor element, wherein the dielectric is disposed between the first electrode and the second electrode and wherein said dielectric comprises an unfilled polymer of dielectric constant less than 4.0. | 12-04-2008 |
| 20090009266 | Antenna Damping Circuit and High Frequency Receiver Employing Same - An antenna damping circuit in which the frequency characteristics of damping amount can be made substantially flat by providing a resistor (Ra) between PIN diodes (D | 01-08-2009 |
| 20090066446 | Method and apparatus for reducing silicon area of a phase lock loop (PLL) filter without a noise penalty - In a method and system for filtering an input signal with a filter included in a phase locked loop (PLL), a unidirectional feedback path is configured from an output of the filter to an input of the filter. The unidirectional feedback path includes a feedback resistor that is configured to adjust a bandwidth of the PLL. A zero path is configured from the output to a voltage reference, such as ground. The zero path includes a capacitor coupled in series with a bias resistor. The bias resistor, which along with the capacitor determines a zero frequency of the filter, is configured to reduce a value of the capacitor without a substantial increase in a phase noise of the PLL due to the unidirectional nature of the feedback. A reduction in the value of the capacitor enables a corresponding reduction in a silicon area to form the capacitor. | 03-12-2009 |
| 20090091403 | CONTACTLESS TRANSMISSION OF A DIFFERENTIAL SIGNAL BETWEEN A TRANSMITTER AND A RECEIVER - A method for the contactless transmission of at least one differential signal between a transmitter and a receiver given the existence of at least one common-mode noise signal, which has a low frequency in comparison with at least one signal to be transmitted, is provided. The suppression of at least one common-mode noise signal within the receiver a ground reference potential assigned to the receiver is separated into two ground reference potentials decoupled from one another. At least one common-mode noise signal may be suppressed by a filter unit at the input of a receive amplifier of the receiver. | 04-09-2009 |
| 20090243755 | NOISE FILTER AND NOISE-FILTER-INCORPORATED AMPLIFIER CIRCUIT - A ladder LPF includes a first capacitor formed of a transistor in which two terminals out of three are diode-connected, and a second capacitor formed by connecting a pn junction capacitor and an insulating capacitor in parallel. In the second capacitor, the pn junction capacitor formed in a semiconductor layer and the insulating capacitor formed in a surface of the semiconductor layer are connected to each other in parallel so as to almost overlap each other. Accordingly, the area in the LPF occupied by the second capacitor can be prevented from increasing even when its capacitance value is increased. Moreover, having the snap-back characteristics, the first capacitor can protect the second capacitor having the insulating capacitor from ESD. As a result, what can be obtained is a compact noise filter having high RFI removal characteristics and accomplishing high resistance to ESD. | 10-01-2009 |
| 20090243756 | SHIELDED THREE-TERMINAL FLAT-THROUGH EMI/ENERGY DISSIPATING FILTER - A shielded three-terminal flat-through EMI/energy dissipating filter includes an active electrode plate through which a circuit current passes between a first terminal and a second terminal, a first shield plate on a first side of the active electrode plate, and a second shield plate on a second side of the active electrode plate opposite the first shield plate. The first and second shield plates are conductively coupled to a grounded third terminal. In preferred embodiments, the active electrode plate and the shield plates are at least partially disposed with a hybrid flat-through substrate that may include a flex cable section, a rigid cable section, or both. | 10-01-2009 |
| 20100001812 | Mode Switching RC Network - Various embodiments include apparatus, systems, and methods having a conductive contact configured to couple to a resistor-capacitor (RC) network, a device unit coupled to the conductive contact, and a mode switching unit to change a characteristic of a signal at the conductive contact based at least in part on an RC time constant of the RC network. The mode switching unit may switch the device unit between a first operating mode and a second operating mode based on a signal level of the signal. | 01-07-2010 |
| 20100033266 | COMPACT PLANAR MICROWAVE BLOCKING FILTERS - A compact planar microwave blocking filter includes a dielectric substrate and a plurality of filter unit elements disposed on the substrate. The filter unit elements are interconnected in a symmetrical series cascade with filter unit elements being organized in the series based on physical size. In the filter, a first filter unit element of the plurality of filter unit elements includes a low impedance open-ended line configured to reduce the shunt capacitance of the filter. | 02-11-2010 |
| 20100060381 | Mulit-layer embedded capacitance and resistance substrate core - A multi-layer imbedded capacitance and resistance substrate core. At least one layer of resistance material is provided. The layer of resistance material has a layer of electrically conductive material embedded therein. At least one layer of capacitance material of high dielectric constant is disposed on the layer of resistance material. Thru-holes are formed by laser. | 03-11-2010 |
| 20100109804 | Electrical Multilayer Component - An electrical multilayer component includes a basic body having at least one stack of dielectric layers and electrode layers arranged alternately one above another. The component also includes an electrically non-connected shielding structure. | 05-06-2010 |
| 20100219908 | DIGITAL TO ANALOG CONVERTING METHOD AND DIGITAL TO ANALOG CONVERTOR UTILIZING THE SAME - A digital to analog converter for converting a digital input signal provided by a host to an analog output signal includes a modulator receiving the digital input signal, modulating the digital input signal, and outputting a modulated signal, and a filtering circuit receiving the modulated signal, low pass filtering the modulated signal, and outputting the analog output signal to an output node. The filtering circuit includes a first switching circuit for adjusting the bandwidth of the filtering circuit according to a bandwidth switching signal. | 09-02-2010 |
| 20100265008 | Reduction of Gain Switching Induced Phase Jumps in High Dynamic Range Downcoversion Mixers - A system and method for minimizing phase jumps in an output signal. | 10-21-2010 |
| 20100327991 | COMPUTER SYSTEM WITH RESISTOR-CAPACITOR FILTER CIRCUIT - A computer system includes a north bridge chip, a power source, and a resistor-capacitor filter circuit coupled between the power source and the north bridge chip. The north bridge chip has a digital-to-analog converter analog power pin and a digital-to-analog converter analog ground pin. The power source is coupled to the digital-to-analog converter analog power pin of the north bridge chip. The resistor-capacitor filter includes a first resistor and a first capacitor. The first resistor is connected between the power source and the digital-to-analog converter analog power pin of the north bridge chip. One end of the first capacitor is connected to the digital-to-analog converter analog power pin of the north bridge chip, and another end of the first capacitor is connected to ground together with the digital-to-analog converter analog ground pin of the north bridge chip. | 12-30-2010 |
| 20110012692 | CURRENT-INPUT CURRENT-OUTPUT RECONFIGURABLE PASSIVE RECONSTRUCTION FILTER - Embodiments of the present invention relate generally to reconstruction filtering. In particular, embodiments enable highly linear, highly programmable, and easily reconfigurable reconstruction filters. Further, embodiments provide substantial power consumption, area, and cost savings compared to conventional solutions. For example, embodiments use all-passive filtering and substantially reduce active elements compared to conventional solutions. As a result, significant reductions in required area, noise, and power consumption can be achieved. In addition, embodiments perform filtering solely in the current domain, thereby eliminating the non-linear voltage-to-current conversion used in conventional circuits and enabling highly linear filtering. Furthermore, embodiments are highly programmable and easily reconfigurable without the use of tunable capacitors. As such, embodiments are very suitable solutions for multi-band multi-mode wireless transmitters. | 01-20-2011 |
| 20110156839 | CAPACITIVE SENSOR WITH VARIABLE CORNER FREQUENCY FILTER - A system and method for configuring a variable filter in a capacitive sensing circuit are provided. In one example, the circuit includes first and second circuitry and control logic. The first circuitry is configured to provide a variable resistance path that is coupled to an external capacitor that is to be sensed by the capacitive sensing circuit. The second circuitry controls actuation of the first circuitry and is responsive to a voltage change that occurs when a charge level of the external capacitor is altered. The second circuitry actuates the first circuitry when the voltage change causes a voltage supplied to the second circuitry to pass a predefined threshold. The control logic receives input identifying a desired corner frequency, determines a resistance setting for the first circuitry corresponding to the corner frequency, and applies the resistance setting to the first circuitry to configure the first circuitry at the corner frequency. | 06-30-2011 |
| 20130049884 | METHODS AND CIRCUITS FOR ATTENUATING HIGH-FREQUENCY NOISE - Low-frequency digital data input signals in an integrated circuit are controlled between first and second stages in a signal input path of the integrated circuit by a capacitance in the signal input path between the first and second stages. The capacitance is sized to attenuate high-frequency noise in the signal input path. In one embodiment, the integrated circuit may be an input buffer circuit in which the capacitance is a capacitor between the signal input path and a reference potential, a voltage source, or both. In another embodiment, the integrated circuit may be an oscillator circuit in which the capacitance is provided between corresponding elements of a differential pair of transistors in the first stage. | 02-28-2013 |
| 20130069741 | NOISE REDUCER - Disclosed is a noise reducer that ameliorates electromagnetic noise interference. Specifically disclosed is a noise reducer that ameliorates electromagnetic noise interference for electronic equipment caused by noise superimposed on a conductor wire. The conductor wire includes a magnetic cylindrical core that penetrates a hollow hole, a winding coiled around the magnetic cylindrical core, and an impedance element connected to the winding. When a noise current is superimposed on the conductor wire that has been made to penetrate the magnetic cylindrical core, part of the noise current is electromagnetically induced from the conductor wire to the winding and flows to the winding. The noise current that flows to the winding is transformed into heat and consumed by the impedance element. As a result, the noise power that gives electromagnetic noise interference to the electronic devices can be reduced and the electromagnetic noise interference for the electronic devices ameliorated. | 03-21-2013 |
| 20130335167 | DE-NOISE CIRCUIT AND DE-NOISE METHOD FOR DIFFERENTIAL SIGNALS AND CHIP FOR RECEIVING DIFFERENTIAL SIGNALS - A de-noise circuit and a de-noise method for differential signals and a chip for receiving differential signals are provided. The de-noise circuit includes a filter and a register. Both the filter and the register are disposed in the chip. The chip receives a differential signal through a first input terminal and a second input terminal. The filter is coupled between the first input terminal and the second input terminal of the chip. The filter filters out noises in the differential signal. The filter includes at least one filter unit. Each filter unit has at least one resistance value or at least one capacitance value. The register is coupled to the filter. The register receives and stores a control value. The register controls the resistance value or the capacitance value of at least one of the filter units based on the control value. | 12-19-2013 |
| 20140125429 | SHUNT RESISTOR DEVICE - Provided is a voltage detection circuit, which can remove influence of error voltage caused by tiny amount of self-inductance existing in a shunt resistor, though in the resistor for large current usage, which is impossible to surface-mount on a voltage detection circuit board. The shunt resistor device comprises: a resistance body ( | 05-08-2014 |
| 20140167883 | FAST RESPONSE HIGH-ORDER LOW-PASS FILTER - A fast-response high-order low-pass filter circuit is provided. The circuit includes a plurality of low pass filter (LPF) poles that are connected in series, a forward bypass channel that includes a first delta voltage module that conducts at a first predetermined voltage and a first impedance module that provides a first impedance and is in series with the first delta voltage module, and a reverse bypass channel that includes a second delta voltage module that conducts at a second predetermined voltage and a second impedance module that provides a second impedance and is in series with the second delta voltage module. The forward and reverse bypass channels are arranged to bypass current around at least one of the plurality of LPF poles when a voltage difference across the at least one of the plurality of LPF poles exceeds one of the first predetermined voltage and the second predetermined voltage. | 06-19-2014 |
| 20140176259 | Polyphase Filter for MM-Wave Frequencies Featuring Symmetric Layout - A two-stage, passive, RC polyphase filter for mm-wave quadrature LO generation is presented. The filter features an innovative, symmetrical layout structure, which is more robust to parasitics than the conventional layout. Layout parasitics which become important at mm-wave frequencies are identified and a compensated. Impedance variations and transfer functions are evaluated considering these dominant parasitics. More than 15 dB improvement in image rejection ratio is achieved in comparison with conventional layouts. Using the inventive techniques more than 35 dB of image rejection ratio over a bandwidth of 6 GHz is demonstrated in an outphasing transmitter at 60 GHz in 40 nm CMOS. | 06-26-2014 |
| 20140176260 | SIGNAL TRANSMISSION CIRCUIT - A signal transmission circ it includes a main driving unit configured to drive a first signal transmission One in response to an input signal and output a first driven signal, an emphasis driving unit configured to perform an emphasis operation on the first driven signal and output an emphasized signal, and a crosstalk control unit configured to perform an equalizing operation on the emphasized signal. | 06-26-2014 |
| 20140312989 | POLY-PHASE FILTER WITH PHASE TUNING - A poly-phase filter receives inphase input signals I and Ī and quadrature input signals Q and | 10-23-2014 |
| 20140361851 | SIGNAL-PROCESSING DEVICES HAVING ONE OR MORE MEMRISTORS - Signal-processing devices having memristors are described for performing frequency-discrimination functions, amplitude-discrimination functions, and time-oriented functions. In each case, the time-domain behavior of the memristors described herein enables these functions to be performed. In one embodiment, memristance of an arrangement of memristors of a device is, after an initial transitional period, predominantly at a first level if frequency of an input signal of the device is less than a first frequency and predominantly at a second level if the frequency of the input signal is greater than a second frequency. | 12-11-2014 |
| 20150137910 | NESTED MULTI-STAGE POLYPHASE FILTER - A nested multi-stage polyphase filter can comprise: a first filter stage and a second filter stage. The first filter stage can be connected to the second filter stage via first through fourth intermediate connections. The first filter stage and the second filter stage can be laid out in a nested-ring layout. The first through fourth intermediate connections can be laid out so as to not cross over each other. | 05-21-2015 |
| 20160036407 | CIRCUIT WITH AN RC-FILTER - A circuit ( | 02-04-2016 |
| 20160156337 | DUAL-MODE FILTERING ACTUATOR DRIVER APPARATUS, SYSTEMS AND METHODS | 06-02-2016 |
| 20160164482 | APPARATUS AND METHODS FOR HIGH VOLTAGE VARIABLE CAPACITOR ARRAYS WITH DRIFT PROTECTION RESISTORS - Apparatus and methods for high voltage variable capacitors are provided herein. In certain configurations, an integrated circuit (IC) includes a variable capacitor array and a bias voltage generation circuit that biases the variable capacitor array to control the array's capacitance. The variable capacitor array includes a plurality of variable capacitor cells electrically connected in parallel between a radio frequency (RF) input and an RF output of the IC. Additionally, each of the variable capacitor cells can include a cascade of two or more pairs of anti-series metal oxide semiconductor (MOS) capacitors between the RF input and the RF output. The pairs of anti-series MOS capacitors include a first MOS capacitor and a second MOS capacitor electrically connected in anti-series. The bias voltage generation circuit generates bias voltages for biasing the MOS capacitors of the variable capacitor cells. | 06-09-2016 |
| 20160164484 | APPARATUS AND METHODS FOR HIGH VOLTAGE VARIABLE CAPACITORS - Apparatus and methods for high voltage variable capacitors are provided herein. In certain configurations, an integrated circuit (IC) includes a variable capacitor array and a bias voltage generation circuit that biases the variable capacitor array to control the array's capacitance. The variable capacitor array includes a plurality of variable capacitor cells electrically connected in parallel between a radio frequency (RF) input and an RF output of the IC. Additionally, each of the variable capacitor cells can include a cascade of two or more pairs of anti-series metal oxide semiconductor (MOS) capacitors between the RF input and the RF output. The pairs of anti-series MOS capacitors include a first MOS capacitor and a second MOS capacitor electrically connected in anti-series. The bias voltage generation circuit generates bias voltages for biasing the MOS capacitors of the variable capacitor cells. | 06-09-2016 |
| 20160380607 | SIGNAL INTERCONNECT WITH HIGH PASS FILTER - A signal interconnect includes a transmission line, a termination circuit coupled to the transmission line, and a high pass filter circuit coupled in series along the transmission line. The high pass filter circuit includes a first resistive circuit and a first capacitive circuit coupled in parallel. The first resistive circuit has a resistance based on a difference between a resistance of the transmission line at a high frequency and a resistance of the transmission line at a low frequency. | 12-29-2016 |
