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| Patent # | Description |
|---|---|
| US-6,522,225 |
Coupling mechanisms for dielectric resonator loaded cavity filters A dielectric loaded cavity filter having a housing and a cover and defining at least two adjacent cavities having respective dielectric resonators mounted... |
| US-6,522,224 |
Method for adjusting characteristics of a dielectric filter The reflection loss characteristic of a dielectric filter provided with a plurality of stages of resonators is measured, pole frequencies and a balance of... |
| US-6,522,223 |
Zero-IF-converter with RC filters A zero-IF-converter, particularly for digital satellite receivers, comprising a thin-film component including at least two RC filters each including a resistor... |
| US-6,522,222 |
Electromagnetic delay line with improved impedance conductor configuration An improved delay line with an input and an output is disclosed wherein a signal passing through the delay line from the input to the output can be optimized... |
| US-6,522,221 |
Phase shifter, attenuator, and nonlinear signal generator A phase shifter includes first and second high-frequency impedance elements and first and second high-frequency phase shifting elements. The first high-frequency... |
| US-6,522,220 |
Frequency variable filter, antenna duplexer, and communication apparatus
incorporating the same A frequency variable filter in which both the frequency of an attenuation pole and the attenuation bandwidth can be varied. In the frequency variable filter, two... |
| US-6,522,219 |
Surface acoustic wave ladder filter with two series resonators having
different apodization weighting A surface acoustic wave filter includes a piezoelectric substrate, and at least two series arm resonators and at least one parallel arm resonator each... |
| US-6,522,218 |
Symmetric N.times.N branch-line hybrid power divider/combiner A symmetric N.times.N branch-line hybrid power divider/combiner has N input ports and N output ports. The divider/combiner divides received powers at each input... |
| US-6,522,217 |
Tunable high temperature superconducting filter Described are tunable high temperature superconducting band-pass and band-reject filters having broad tuning frequency range without performance deterioration,... |
| US-6,522,216 |
Nonreciprocal circuit device and communication apparatus The present invention provides a nonreciprocal circuit device which has solved problems, such as the increase in production cost, the reduction in reliability,... |
| US-6,522,215 |
Converter for receiving satellite signal with dual frequency band A polarizer for a dual frequency band is formed of square waveguides of a dual structure. A section is formed which extends in a step-like manner as deeper... |
| US-6,522,214 |
Electrical transmission line arrangement with a cross-over The invention relates to an electrical transmission arrangement comprising a first strip-line conductor which has its main extension in a first direction in a... |
| US-6,522,213 |
SSB transmitter In an SSB transmitter, a problem such that the central frequency of a BPF for extracting one of sideband signals from the modulated signals obtained by... |
| US-6,522,212 |
Matched crystal temperature compensation device The invention relates to a device and a method for temperature compensation via the determination of cut-angles of a master and a slave crystal (mc, sc) employed... |
| US-6,522,211 |
Frequency-switching oscillator and communication apparatus using same A frequency-switching oscillator has an oscillating circuit and a buffer circuit, wherein a matching circuit has a diode. The anode of the diode can be switched... |
| US-6,522,210 |
Random pulse generator Random pulse generators and generating systems using at least three oscillators. The output signals of at least two of the oscillators are combined to disturb... |
| US-6,522,209 |
Oscillator averaging phase shift generator Two oscillators, such as in two pulse width modulator circuits of DC to DC power converters, are maintained in synchronization and at a predetermined phase shift... |
| US-6,522,208 |
Oscillator and method for generating a frequency within a stable frequency
range An oscillator includes an oscillator circuit that receives a control signal having a signal level. The oscillator circuit generates an oscillator signal having a... |
| US-6,522,207 |
Apparatus and method for dynamic frequency adjustment in a frequency
synthesizer An apparatus and a method for making small frequency adjustments in a frequency synthesizer. The frequency synthesizer consists of the forward portion of a phase... |
| US-6,522,206 |
Adaptive feedback-loop controllers and methods for rapid switching of
oscillator frequencies Feedback methods and systems are provided to achieve rapid switching of oscillator frequencies without compromising operational feedback loop bandwidths that... |
| US-6,522,205 |
Long term stability of an oscillator using a time source on a packet
switched network The invention relates to a method for adjusting an oscillator (44), a packet switched network (21) locating between the oscillator and a specified time source... |
| US-6,522,204 |
Phase-locked loop for ADSL frequency locking applications A phase-locked loop (PLL), particularly useful for ADSL frequency locking applications, uses inexpensive external components in combination with versatile logic... |
| US-6,522,203 |
Power amplifying transistors In an output stage of an electronic signal processing circuit such as that used for transmission from a mobile telephone set the amplifier circuit comprises two... |
| US-6,522,202 |
Current controlled power amplifier A circuit for regulating the power provided to a load connected to an output of a power amplifier. The circuit using a control current, rather than a control... |
| US-6,522,201 |
RF amplifier having switched load impedance for back-off power efficiency Efficiency of an RF/microwave power amplifier is increased at a back-off power level by increasing the load resistance of the amplifier at the reduced output... |
| US-6,522,200 |
Process-insensitive, highly-linear constant transconductance circuit A process-insensitive, highly-linear, constant transconductance circuit employs a CMOS multiplier in the signal path that is offset biased with a specific... |
| US-6,522,199 |
Reconfigurable dual-mode multiple stage operational amplifiers A reconfigurable dual-mode multiple stage operational amplifier circuit includes a configurable portion that can be selectively configured to operate in either a... |
| US-6,522,198 |
Power amplifier having predistortion linearizer A power amplifier having a predistortion linearizer for improving the non-linear property of the power amplifier is disclosed. The powers amplifier includes a... |
| US-6,522,197 |
Method and apparatus for optimum biasing of cascaded MOSFET radio-frequency
devices Generally, the invention relates to a method and apparatus to improve the performance of multi-stage radio frequency linear power amplifiers. More particularly,... |
| US-6,522,196 |
System and method for improving input return loss in RF amplifiers A system and method for improving the input return loss in RF amplifiers is disclosed. One embodiment of the present invention amplifies only one of the two... |
| US-6,522,195 |
Low noise amplifier having bypass circuitry A low noise amplifier (10) having an amplifier mode and a bypass mode. In the amplifier mode the input signal received at an input terminal (12) is amplified by... |
| US-6,522,194 |
Envelope restoration scheme for linear high-efficiency power amplification A apparatus for providing a waveform as a switched input into an output matching network of a standard class E amplifier. The apparatus includes a switch in... |
| US-6,522,193 |
Internal voltage generator for semiconductor memory device An internal voltage generator for a semiconductor memory device prevents generation of an internal voltage from being delayed, by generating a ramp-up voltage... |
| US-6,522,192 |
Boost doubler circuit The present invention, generally speaking, provides a circuit that combines the features of a voltage doubler and a boost regulator to achieve a small and... |
| US-6,522,191 |
Synchronized voltage generator for amplifying voltage inputs A synchronized boosted voltage generator includes a pump controller for receiving an externally applied clock signal and an externally applied control signal,... |
| US-6,522,190 |
High efficiency multiple input voltage sources power supply The present invention provides a highly efficient power supply with redundant multiple input voltage sources. The power supply uses switching transistors,... |
| US-6,522,189 |
High-speed bank select multiplexer latch A high-speed bank select multiplexer latch may be coupled to a pair of differential output nodes and configured to capture and retain an output on the pair of... |
| US-6,522,188 |
High-speed data bus for network switching A bi-directional full duplex clocked bus including eight data lines, a clock line and a control line. The bus signals are low level differential with suitable... |
| US-6,522,187 |
CMOS switch with linearized gate capacitance A CMOS switch with compensation circuitry that maintains linearized gate capacitance, said switch capable of selectively processing a signal independent of... |
| US-6,522,186 |
Hierarchical clock grid for on-die salphasic clocking A hierarchical clock distribution system includes a global clock grid that distributes a clock signal to a plurality of regional clock grids. Each of the... |
| US-6,522,185 |
Variable delay CMOS circuit with PVT control An electronic circuit and method for processing a signal, including a variable-delay transmission gate for receiving a binary input signal and propagating a... |
| US-6,522,184 |
Flip-flop circuit In a flip-flop circuit, a master latch has a data input circuit that reads data when a clock input signal is at a first level. When the clock input signal is at... |
| US-6,522,183 |
PLL device and programmable frequency-division device A PLL device has a voltage-controlled oscillator, a reference generator that generates reference signals with different phases, and a main divider that divides... |
| US-6,522,182 |
Integrated circuit device incorporating DLL circuit In the present invention, an external power source supplied to an integrated circuit device is divided into a first external power source for the DLL circuit and... |
| US-6,522,181 |
Semiconductor memory apparatus which can easily attain reduction of access
time A semiconductor apparatus includes an input unit and a control unit. The input unit inputs a first signal and a generation signal. The generation signal is... |
| US-6,522,180 |
Bi-voltage levels switches An apparatus to provide a novel bi-voltage level switching. The apparatus includes a first level shifting buffer coupled to a voltage supply, an input, and a... |
| US-6,522,179 |
Differential line driver circuit A differential line driver circuit having an output impedance matched to the line impedance includes first and second input terminals for the application of an... |
| US-6,522,178 |
Controlling high side devices without using level shift switches Circuits for communicating between high side devices and low side controllers without using level shifting switches are provided. A low voltage controller with... |
| US-6,522,177 |
Frequency synthesis device The invention relates to a frequency synthesis device comprising a direct digital synthesis device (22) for producing by calculation a signal oscillating at a... |
| US-6,522,176 |
Low spurious direct digital synthesizer A direct digital synthesizer for generating an output signal within a frequency band. The direct digital synthesizer comprises an input section for receiving a... |
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