|
Match
|
Document |
Document Title |
|
|
8179205 |
Linearization systems and methods for variable attenuators
Systems and methods for provided for linearization systems and methods for variable attenuators. The variable attenuators can include series transistors along a main signal path from the input to...
|
|
|
8179298 |
Multi-directional resonant-type electromagnetic wave absorber, method for adjusting electromagnetic wave absorption performance using the same and manufacturing method of the same
A multi-directional resonant-type electromagnetic wave absorber includes: at least one ground layer; a first dielectric layer and a second dielectric layer respectively formed on different outer...
|
|
|
8149042 |
Analog switch for signal swinging between positive and negative voltages
An analog signal is input to an input terminal. An analog signal is output via an output terminal. A first transistor is an N-channel MOSFET, and is provided between the input terminal and the...
|
|
|
8143969 |
Multiple tap attenuator microchip device
A multiple tap attenuator microchip device is disclosed. The device includes a substrate having two or more attenuator taps formed on a surface of the substrate. One or more ground contacts are...
|
|
|
8138851 |
High bandwidth programmable transmission line equalizer
A transmission line equalizer includes multiple signal paths connected in parallel between an equalizer input signal and an output amplifier where each signal path has a network implementing a...
|
|
|
8130056 |
Thermometer coded attenuator
Techniques are disclosed that allow for programmable attenuation using thermometer code steps. By thermometer coding the attenuator structure, monotonicity is guaranteed or otherwise greatly...
|
|
|
8076995 |
Integrated digitally controlled linear-in-decibels attenuator
An integrated digitally controlled linear-in-decibels attenuator circuit in which one or more sets of selection switches establish a desired attenuation by selectively connecting the input signal...
|
|
|
8031031 |
Attenuator
An attenuator includes a T-type two terminal pair network including first and second terminals, first, second and third circuits, wherein the first terminal receives an input signal to be...
|
|
|
8022785 |
Step attenuator circuit with improved insertion loss
A step attenuator circuit is mounted on a printed circuit board and has a highpass filter network passing high frequency signals and a lowpass filter network passing low frequency signals. The...
|
|
|
7999631 |
Anti-parallel PI PIN attenuator structure with improved CSO performance
An RF attenuator circuit includes an anti-parallel PI structure having an input shunt arm comprising a single PIN diode, and an output shunt arm comprising a single PIN diode configured to have...
|
|
|
7990201 |
Constant phase digital attenuator with on-chip matching circuitry
Various embodiments are directed to providing constant phase digital attenuation. In one embodiment, a digital attenuator circuit (100) comprises an input node (102) to receive an input signal to...
|
|
|
7990230 |
Temperature compensation attenuator
A temperature compensation attenuator formed from a base, a serial film thermistor having two ends, a parallel film resistor, an input terminal, and an output terminal. The serial film thermistor...
|
|
|
7986197 |
Compact distributed ladder attenuator
Simple and compact structures for an attenuator or resistor ladder can be implemented in a standard integrated circuit process as well as hybrid, thick or thin film ceramic processes, which allows...
|
|
|
7965152 |
Attenuator with a control circuit
An attenuator system comprises an attenuator and a control circuit for controlling the attenuation of the attenuator. In one embodiment, the attenuator comprises two diodes or two diode connected...
|
|
|
7956665 |
Methods and articles of manufacture for operating electronic devices on a plurality of clock signals
Embodiments of the invention relate to an integrated circuit comprising at least one functional unit configured to operate at a first clock frequency. The integrated circuit also comprises at least...
|
|
|
7944323 |
Temperature-compensated PIN-diode attenuator
Temperature compensation is provided for a PIN-diode attenuator by temperature-sensitive resistive networks. In one embodiment, each temperature-sensitive resistive network includes a resistor...
|
|
|
7911293 |
Thermometer coded attenuator
Techniques are disclosed that allow for programmable attenuation using thermometer code steps. By thermometer coding the attenuator structure, monotonicity is guaranteed or otherwise greatly...
|
|
|
7876173 |
Signal output device, signal output control method, program and recording medium
The present invention can control the power of an output from a device, which changes the amplitude of an input and outputs a result of the change, according to the frequency of the input so that...
|
|
|
7868681 |
Programmable gain circuit
A programmable gain circuit suitable for a programmable gain amplifier is described. In one design, the programmable gain circuit includes multiple attenuation circuits coupled in series. Each...
|
|
|
7839233 |
Attenuator
A π-type voltage-controlled variable attenuator is disclosed. The variable attenuator may include variably resistive components in the series and shunt arms. The variably resistive components may ...
|
|
|
7808340 |
Plug-in device for signal correction
Described herein are systems and methods for a JXP-type plug-in device that may be inserted within existing transmission equipment, such as RF amplifiers and the like, to provide an appropriate...
|
|
|
7786787 |
Series/shunt switch and method of control
A switch includes at least two signal ports in series with a series FET connected therebetween, and a shunt path having an FET, whereby an input bias is applied to a gate on the series FET and to a...
|
|
|
7786822 |
Four-state digital attenuator having two-bit control interface
A four-state digital attenuator for an RF signal includes a first external terminal adapted to receive a first control voltage; a second external terminal adapted to receive a second control...
|
|
|
7772938 |
Electrical multiple-wire system for push-pull signal transmission with an attenuating or filtering element and data transmission bus
The electric multiple conductor system (1) is used for the transmission of signals in differential mode, and has two signal lines (5, 6) and a shared reference line (7). Each signal line (5, 6)...
|
|
|
7750716 |
Variable resistor, filter, variable gain amplifier and integrated circuit using the variable resistor
A variable resistor formed on a silicon substrate, and changing a resistance value between an input terminal and an output terminal, includes a plurality of first resistors each having one end...
|
|
|
7710181 |
Variable attenuator and wireless communication device
A variable attenuator, used with high frequency, provides large variable attenuation per stage. The variable attenuator includes: a MOSFET having a gate, a drain, a source, and a body; an...
|
|
|
7679417 |
Attenuator with bias control circuit
An attenuator includes one or more series attenuation branches including one or more series field effect transistors (FETs) each having a gate; one or more shunt attenuation branches including one...
|
|
|
7675380 |
Integrated digitally controlled linear-in-decibels attenuator
An integrated digitally controlled linear-in-decibels attenuator circuit in which one or more sets of selection switches establish a desired attenuation by selectively connecting the input signal...
|
|
|
7675342 |
On-chip electrically alterable resistor
A programmable, electrically alterable (EA) resistor, an integrated circuit (IC) chip including the EA resistor and integrated analog circuits using on-chip EA resistors. Phase change storage media...
|
|
|
7659765 |
Resistor circuit
Operations as a variable resistor are favorably realized even when a drain-source voltage of a variable MOS resistor and that of a reference MOS resistor are not the same. A gate voltage of the...
|
|
|
7659745 |
Variable external interface circuitry on programmable logic device integrated circuits
A programmable logic device (“PLD”) includes circuitry for optionally and variably modifying characteristics of an input signal in any of several respects. Examples of such modifications inc...
|
|
|
7660571 |
Programmable attenuator using digitally controlled CMOS switches
A programmable attenuator includes a resistor ladder having a plurality of taps to provide a coarse gain control. Coupled to each tap is a plurality of switches. Control logic activates or...
|
|
|
7649430 |
Switching device, and testing apparatus
Provided is a switching apparatus connecting a transmission line designated among transmission lines, between input and output terminals, and preventing a signal at the terminal from leaking to a...
|
|
|
7646231 |
System and method for controlling attenuator
An apparatus for setting an attenuation of an attenuator includes a control transistor, which includes a drain connected to a gate of a shunt transistor of the attenuator. A channel resistance of...
|
|
|
7639100 |
RF step attenuator
A broadband, high-speed RF step attenuator implemented using long-lifetime PIN diode switches is presented which provides step attenuation across a significant portion of the entire RF frequency...
|
|
|
7636004 |
High-frequency switching device and semiconductor
The first terminals of a plurality of resistor elements are connected to the intermediate connection points of a plurality of FETs connected in series, and a voltage, having a phase opposite to...
|
|
|
7626474 |
Compensated attenuator circuit and oscilloscope utilizing the same
An attenuator circuit. The attenuator circuit includes a resistive divider coupled to a capacitive network including first and second capacitive dividers. The resistive divider is configured to...
|
|
|
7609126 |
Diode switch and attenuator for reducing a bias current
Diodes and are connected between an input terminal and an output terminal. These diodes are connected in parallel, and the cathode of a latter-stage diode is connected to the anode of a...
|
|
|
7609116 |
Integrated amplifier arrangement
A millimetric-wave amplifier arrangement comprises a first amplifier whose output is connected to one input of the second amplifier via an adjustable attenuator. Both amplifiers are integrated on a...
|
|
|
7595705 |
Attenuator and step attenuation device having the same
An attenuator for attenuating an input signal at a predetermined rate and a step attenuation device having the same are provided. The attenuator includes first to sixth impedance components. A...
|
|
|
7567122 |
Variable gain amplifiers systems and methods
A system for controlling gain in a polar loop is disclosed. Embodiments of the invention provide for a substantially constant gain tolerant of changes in supply voltage, ambient temperature, and/or...
|
|
|
7546101 |
Variable attenuation of broadband differential signals using PIN diodes
Disclosed herein is a system for the variable attenuation of broadband differential signals. An exemplary system of variable attenuation of broadband differential signals includes attenuation...
|
|
|
7525395 |
Step attenuator
There is provided a step attenuator having two Pi-type attenuators and one bridged-T type attenuator that share some resistors. The step attenuator is used to prevent a reduction in frequency range...
|
|
|
7521980 |
Process and temperature-independent voltage controlled attenuator and method
A circuit includes a first variable resistor having a resistance which is variable in response to a resistance control signal. A resistance control circuit includes a first current source circuit...
|
|
|
7505748 |
Linear voltage controlled variable attenuator with linear DB/V gain slope
A variable attenuator and method of attenuating a signal is presented. The variable attenuator contains an input that receives an input signal to be attenuated. A voltage divider between a resistor...
|
|
|
7492236 |
Gain compensation circuit
A gain compensation circuit, applied to a microwave transceiver, includes a gain adjuster, a first attenuator and a second attenuator. The gain adjuster is disposed between a first amplifier and a...
|
|
|
7492237 |
Gain compensation circuit
A gain compensation circuit comprises a first amplifier, a second amplifier, a filter, a first attenuator, a second attenuator and a third attenuator. The first amplifier is configured to amplify...
|
|
|
7482891 |
Interpolating programmable gain attenuator
A programmable gain attenuator includes a termination resistor. A first termination switch connects one side of the termination resistor to a first output. A second termination switch connects...
|
|
|
7477085 |
Digital attenuator circuits and methods for use thereof
An attenuator system includes a first adjustable impedance component on a first current path between a input component and a output component, and a second adjustable impedance component between...
|
|
|
7474170 |
Attenuator
A linearizer includes fifth diodes, a third resistor, sixth diodes, and a first npn heterojunction bipolar transistor. When a low-level voltage is applied to first and fourth control voltage...
|