Robert J Pascal

US Patent 11177545 Full band orthomode transducers

US Patent 11177547 Three-dimensional branch line coupler

US Patent 11177548 Electromagnetic wave concentration

US Patent 11177789 Acoustic wave device and method of manufacturing the same

US Patent 7321272 Device for detecting the temperature of an oscillator crystal

US Patent 7327194 Low voltage low power class A/B output stage

US Patent 7330075 Output impedance control circuit and control method thereof

US Patent 7342468 RF filter tuning system and method

US Patent 7345552 Constant temperature type crystal oscillator

US Patent 7348860 Triple-input relaxation oscillator with differential controllability

US Patent 7352238 dB-linear analog variable gain amplifier (VGA) realization system and method

US Patent 7352248 Method and apparatus for maintaining a clock/data recovery circuit frequency during transmitter low power mode

US Patent 7352260 Transceiver using low temperature co-fired ceramic method

US Patent 7355482 Methods and apparatus for compensating a variable oscillator for process, voltage, and temperature variations using a replica oscillator

US Patent 7355492 Electronically controlled hybrid digital and analog phase shifter

US Patent 7358814 Differential amplifier and methods for use therewith

US Patent 7358833 Method and apparatus for signal processing using electrowetting

US Patent 7362176 High efficiency linear amplifier

US Patent 7362182 Power amplifier

US Patent 7362185 Analog based, state machine controlled, frequency smooth switching method for frequency timing generators

US Patent 7362189 Oscillator circuit with regulated V-I output stage

US Patent 7362192 Low noise voltage-controlled oscillator

US Patent 11183988 Acoustic wave device

US Patent 7365607 Low-power, low-jitter, fractional-N all-digital phase-locked loop (PLL)

US Patent 7365610 Push compensation in an oscillator

US Patent 7368991 System and method for clamping a differential amplifier

US Patent 7368998 Inductor element containing circuit board and power amplifier module

US Patent 7369004 Microelectromechanical oscillator and method of operating same

US Patent 7369009 Oscillator device for frequency modulation

US Patent 7369017 Microstrip type bandpass filter

US Patent 7375584 Gain adjustment method, gain adjustment circuit, and optical disc device having same gain adjustment circuit

US Patent 7375599 Analog circuit and method for multiplying clock frequency

US Patent 7375604 Compact bandpass filter for double conversion tuner

US Patent 7375605 Method and device for compensating the temperature of circular resonators

US Patent 7378903 System and method for minimizing DC offset in outputs of audio power amplifiers

US Patent 7378914 Solid-state high-power oscillators

US Patent 7378924 Filter with improved capacitive coupling portion

US Patent 7378926 Single crystalline magnetic garnet and YIG device

US Patent 7382184 Amplifier system and method

US Patent 7382186 Amplifiers with high efficiency in multiple power modes

US Patent 7385444 Class D amplifier

US Patent 7385447 Power amplifier having curve-fitting predistorter

US Patent 7385449 Automatic gain control with three states of operation

US Patent 7385452 Voltage controlled oscillator using capacitive degeneration

US Patent 7385457 Flexible capacitive coupler assembly and method of manufacture

US Patent 7385462 Wideband radial power combiner/divider fed by a mode transducer

US Patent 7385466 Differential transmission circuit and common mode choke coil

US Patent 7388429 Amplifier circuit, control method of the same, and amplifier circuit module

US Patent 7388437 System and method for tuning a frequency synthesizer

US Patent 7388440 Circuit and method to speed up PLL lock-time and prohibit frequency runaway

US Patent 7388444 Switching regulator duty cycle control in a fixed frequency operation

US Patent 7388446 Directly modulated CMOS VCO

US Patent 7388447 Integrated clock generator tolerant to device parameter variation

US Patent 7391259 Power amplifier

US Patent 7391262 Circuit and method for driving bulk capacitance of amplifier input transistors

US Patent 7391265 Amplifier unit and optical disc drive

US Patent 7391270 Phase locked loop and method for phase correction of a frequency controllable oscillator

US Patent 7391272 Voltage controlled oscillator with full adder

US Patent 7391273 Clock signal output apparatus and control method of same, and electric apparatus and control method of same

US Patent 7391274 Low voltage operating ring oscillator with almost constant delay time

US Patent 7391280 Circuit and method for pulse width modulation

US Patent 7391287 Bandpass filter with pseudo-elliptic response

US Patent 7391288 Zeroeth-order resonator

US Patent 7394311 Apparatus and method for reduced sample rate class S RF power amplifier

US Patent 7394323 PLL frequency synthesizer

US Patent 7394325 Voltage-controlled oscillator circuit and PLL circuit

US Patent 7394334 Dielectric resonance apparatus, oscillation apparatus, and transmission/reception apparatus

US Patent 7394335 Polarized high-order mode electromagnetic wave coupler and its coupling method

US Patent 7397301 Pyroelectric demodulating detector

US Patent 7397307 Amplifier arrangement having an adjustable gain, and use thereof

US Patent 7397316 Ring oscillator for calibrating phase error and phase-error calibration method therefor

US Patent 7397323 Orthomode transducer

US Patent 7397324 Multilayer chip-type triplexer

US Patent 7397329 Compact tunable filter and method of operation and manufacture therefore

US Patent 7397331 Coupling structure, resonator excitation structure and filter for coplanar-waveguide circuit

US Patent 7397332 High-frequency dielectric ceramic composition, dielectric resonator, dielectric filter, dielectric duplexer, and communication apparatus

US Patent 7400195 Variable-gain differential amplifier

US Patent 7400198 Active circuit having improved linearity using multiple gated transistor

US Patent 7400199 Semiconductor integrated circuit apparatus

US Patent 7400204 Linear phase detector and charge pump

US Patent 7400206 Clock circuit with programmable load capacitors

US Patent 7400207 Anodically bonded cell, method for making same and systems incorporating same

US Patent 7400211 High speed passband phase modulation apparatus and method of the same

US Patent 7400215 Method and apparatus for increasing performance in a waveguide-based spatial power combiner

US Patent 7403071 High linearity and low noise amplifier with continuously variable gain control

US Patent 7403076 High frequency quasi optical power source capable of solid state implementation

US Patent 7403078 Temperature compensated crystal oscillator

US Patent 7403082 Dual mode antenna switch module

US Patent 7403085 RF module

US Patent 7405624 Class AB source follower

US Patent 7405627 PLL frequency synthesizer

US Patent 7405629 Frequency modulator, circuit, and method that uses multiple vector accumulation to achieve fractional-N frequency synthesis

US Patent 7408407 Low noise variable gain amplifier

US Patent 7408408 Predistorter for power amplifier

US Patent 7408409 Amplifier circuit with cross-coupled cascode transistors

US Patent 7408413 Circuit for accurately controlling power amplifier output power

US Patent 7408417 Filter automatic adjustment apparatus, filter automatic adjustment method, and mobile telephone system

US Patent 7408422 Variable-capacitance circuit element

US Patent 7408426 Method and device for transmission without crosstalk

US Patent 7408427 Compact multi-frequency feed with/without tracking

US Patent 7411445 Phonon laser

US Patent 7411449 Composite power amplifier

US Patent 7411455 High output current buffer

US Patent 7411465 AGC circuit for the reduction of harmonics in the drive signal

US Patent 7411467 Overtone crystal oscillator automatic calibration system

US Patent 7411472 Low-loss integrated waveguide feed for wafer-scale heterogeneous layered active electronically scanned array

US Patent 7411475 Superconductor filter

US Patent 7414478 Integrated parallel power amplifier

US Patent 7414482 Resonance mode selection using a resonator-synchronized second-order oscillator

US Patent 7414490 Dual-band voltage-controlled oscillator using bias switching and output-buffer multiplexing

US Patent 7414491 Method and apparatus for changing the polarization of a signal

US Patent 7417500 Control of an adjustable gain amplifier

US Patent 7417506 Amplifier having switchable negative feedback

US Patent 7417509 Spread spectrum modulation of a clock signal for reduction of electromagnetic interference

US Patent 7417512 Dual mode tuning digitally controlled crystal oscillator and operation method thereof

US Patent 7417513 System and method for signal filtering in a phase-locked loop system

US Patent 7417514 Method for modulating phase or frequency in a communication system using clock division

US Patent 7420413 Amplifier circuit of BTL system

US Patent 7420426 Frequency modulated output clock from a digital phase locked loop

US Patent 7420427 Phase-locked loop with a digital calibration loop and an analog calibration loop

US Patent 7420430 Method and arrangement for generating an output clock signal with an adjustable phase relation from a plurality of input clock signals

US Patent 7423483 Increasing amplifier bandwidth by positive capacitive feedback

US Patent 7423492 Circuit to reset a phase locked loop after a loss of lock

US Patent 7423496 Resonator with adjustable capacitance for medical device

US Patent 7425868 Apparatus and method for canceling DC output offset

US Patent 7425871 Compensation units for reducing the effects of self-heating and increasing linear performance in bipolar transistors

US Patent 7425874 All-digital phase-locked loop for a digital pulse-width modulator

US Patent 7427893 Circuit and method for controlling the power mode a class-D amplifier

US Patent 7427894 Dual-mode, dual-load high efficiency RF power amplifier

US Patent 7427900 Integrated PLL loop filter and charge pump

US Patent 7427902 High-stability piezoelectric oscillator

US Patent 7427903 Polar modulator and a use thereof

US Patent 7429893 Variable-gain amplifier and related method

US Patent 7429896 Frequency stability measuring apparatus

US Patent 7432762 Circuit having enhanced input signal range

US Patent 7432764 Push-pull amplifier with transformational negative feedback

US Patent 7432770 Signal transmission device

US Patent 7432771 Oscillator circuit having temperature and supply voltage compensation

US Patent 7432780 Rectangular-to-circular mode power combiner/divider

US Patent 7432781 Monolithic duplexer and fabrication method thereof

US Patent 7432782 Signal splitter

US Patent 7436132 Multi-way sensor switch

US Patent 7436253 Method and system for fast calibration to cancel phase feedthrough

US Patent 7436264 Charge supply apparatus and method in frequency synthesizer

US Patent 7436270 Structure and method for improving the reliability of surface mounted ceramic duplexers

US Patent 7439800 Amplitude demodulator for an electromagnetic transponder

US Patent 7439803 Fully differential current-feedback CMOS/bipolar operational amplifier

US Patent 7439807 Method and system for generating a temperature-compensated control signal

US Patent 7439811 Broadband low noise amplifier and RF signal amplification method of the same

US Patent 7439813 Method and system for generating carrier frequencies for UWB application

US Patent 7439818 Voltage-and temperature-compensated RC oscillator circuit

US Patent 7439820 Reducing the settling time of a crystal oscillator

US Patent 7440511 Transmit filter

US Patent 7443206 High-frequency linear phase-frequency detector with wide-pulse outputs

US Patent 7443235 Audio system and processing method of storing and reproducing digital pulse width modulation signal

US Patent 7443238 Amplifier stage, operational amplifier and method for amplifying a signal

US Patent 7443239 Differential amplifier, data driver and display device

US Patent 7443243 High frequency amplifier having an attenuator

US Patent 7443244 Method and apparatus for controlling a power amplifier supply voltage

US Patent 7443247 Circuit arrangement for detection of a locking condition for a phase locked loop, and a method

US Patent 7443249 Phase locked loop for stably operating in a matter that is insensitive to variation in process, voltage and temperature and method of operating the same

US Patent 7443251 Digital phase and frequency detector

US Patent 7443252 Calibration circuit and operation method for voltage-controlled oscillator

US Patent 7443253 Detection device for detecting oscillator

US Patent 7443255 Oscillator circuit and method for adjusting oscillation frequency of same

US Patent 7443258 Oscillator system having a plurality of microelectromechanical resonators and method of designing, controlling or operating same

US Patent 7443261 Phase modulating apparatus, communication device, mobile wireless unit, and phase modulating method

US Patent 7443266 Variable power coupling device

US Patent 7446611 Fully differential amplifier device with output-common-mode feedback and control method thereof

US Patent 7446614 Logical level converter and phase locked loop using the same

US Patent 7446619 Temperature measurement system having a plurality of microelectromechanical resonators and method of operating same

US Patent 7446620 Microelectromechanical oscillator having temperature measurement system, and method of operating same

US Patent 7446627 Compact stabilized full-band power amplifier arrangement

US Patent 7446628 Pole-zero elements and related systems and methods

US Patent 7449951 Low voltage operational amplifier

US Patent 7449955 Chain-chopping current mirror and method for stabilizing output currents

US Patent 7449958 Open loop DC control for a transimpedance feedback amplifier

US Patent 7449960 Frequency modulation linearization system for a Fractional-N offset PLL

US Patent 7449962 Phase-controlled current source for phase-locked loop

US Patent 7449970 Frequency tuning circuits and voltage-controlled oscillator including the same

US Patent 7449977 Circuit having isolated transmitting and receiving paths

US Patent 7449979 Coupled resonator filters formed by micromachining

US Patent 7449981 Variable radio frequency band filter

US Patent 7453317 Apparatus and method for reducing flicker noise of CMOS amplifier

US Patent 7453331 Polyphase line filter

US Patent 7453336 Coupling structure for cylindrical resonators

US Patent 7456694 Self-calibrated constant-gain tunable oscillator

US Patent 7456695 Apparatus, method and computer program product for tracking information in an electric grid

US Patent 7456706 Method and apparatus for electrically adjusting delay in radio-frequency systems

US Patent 7459976 Apparatus and method for biasing cascode devices in a differential pair using the input, output, or other nodes in the circuit

US Patent 7459979 Semiconductor indicator for voltage diagnostics in power amplifiers

US Patent 7459984 Method and apparatus for self-calibration and adaptive temperature compensation in GPS receivers

US Patent 7463107 Resonant circuit and oscillator having a resonant circuit

US Patent 7477110 Method and device for testing a phase locked loop

US Patent 7477113 Voltage-controlled capacitance linearization circuit

US Patent 7498880 Class L amplifier

US Patent 7515011 Microwave routing element, methods of routing microwaves and systems including same

US Patent 11190158 Low frequency shield solutions with sputtered/sprayed absorber materials and/or absorber materials mixed in mold compound

US Patent 7528655 Amplifier with improved compensation topology and related amplifier circuit, system, and method

US Patent 7528687 Filtering device and circuit module

US Patent 7570109 System and method for demodulating amplitude modulated signals

US Patent 7646263 Tracking feed for multi-band operation

US Patent 7746194 Signal splitter/combiner for reducing noise ingress and cable television network incorporating plurality of same