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| Number | Title | Issue Date |
| 8031022 | Oscillation circuit including MIT device and method of adjusting oscillation frequency of the oscillation circuit Provided are an MIT device-based oscillation circuit including a power source, an MIT device and a variable resistor, in which a generation of an oscillation and an oscillation frequency are determined according to a voltage applied from the power source and a resis... | 10/04/2011 |
| 8031021 | Oscillation circuit based on metal-insulator transition device and method of driving the oscillation circuit Provided are an oscillatory circuit based on a metal-insulator transition (MIT) device that can generate a simple and very high oscillating frequency using the MIT device, and a method of driving the oscillatory circuit. The oscillatory circuit includes the MIT devi... | 10/04/2011 |
| 7872539 | Energy efficient waveform generation using tuned resonators A power source, a primary inductor, a load capacitance, and one or more tuned branch resonators and switching devices are coupled to generate pulses which represent a superposition of sinusoidal waveforms. The primary inductor is connected between the power source a... | 01/18/2011 |
| 7782149 | Energy efficient waveform generation using tuned resonators A power source, a primary inductor, a load capacitance, and one or more tuned branch resonators and switching devices are coupled to generate pulses which represent a superposition of sinusoidal waveforms. The primary inductor is connected between the power source a... | 08/24/2010 |
| 7479838 | Energy efficient waveform generation using tuned resonators A power source, a primary inductor, a load capacitance, and one or more tuned branch resonators and switching devices are coupled to generate pulses which represent a superposition of sinusoidal waveforms. The primary inductor is connected between the power source a... | 01/20/2009 |
| 7170332 | Reference signal generators Reference signal generators are provided that automatically adjusts a reference signal's amplitude when that signal is delivered into system loads having unknown capacitances. The amplitude is preferably initiated at a maximum amplitude to insure operation of system... | 01/30/2007 |
| 6803859 | Method and apparatus for active isolation in inductive loop detectors An oscillator circuit for use with a wire-loop inductive sensor and method for use. The oscillator circuit highly attenuates common-mode noise detected by the wire-loop and differential noise from both ambient and crosstalk sources are filtered by active isolation. | 10/12/2004 |
| 6774735 | Low power self-biasing oscillator circuit A clock oscillator circuit that includes an inverting amplifier and a resonator configured to generate an oscillating signal. The clock oscillator includes a bias circuit having a relatively constant current source configured to create a bias voltage to bias the amp... | 08/10/2004 |
| 6762561 | Radio frequency resonator An apparatus having a radio frequency resonator, which has a coil, a capacitor means and at least one switch means being associated with another capacitor means, a resistor means and a high voltage supply means, one end of the switch means being connected to a junct... | 07/13/2004 |
| 6337602 | Method and apparatus for active isolation in inductive loop detectors An oscillator circuit for use with a wire-loop inductive sensor and method for use. The oscillator circuit includes two balanced capacitors coupled to the wire-loop sensor, and an excitation circuit connectable with the capacitors at a selected polarity. ... | 01/08/2002 |
| 6285063 | Resonant circuit having a resonant body mechanically oscillated by electrostatic or magnetic forces The resonant circuit has at least one resonant body of a semiconductor material anchored on the surface of a semiconductor substrate, at least one first electrode being arranged at said semiconductor material, and at least one second electrode. The first ... | 09/04/2001 |
| 5861768 | Resolver exciter having a simple power source unit A resonance circuit includes a capacitor, a coil element and a primary coil of a transformer. A connection between the resonance circuit and a vehicle-mounted battery is connected and disconnected by a switching transistor at a predetermined duty cycle. O... | 01/19/1999 |
| 5319665 | High power electromagnetic pulse driver using an electromagnetic shock line A high power electromagnetic pulse driver for generating sub-microsecond rise time pulses having energy contents greater than 1 joule includes an electromagnetic pulse compressor and an electromagnetic shock line for compressing the leading edges of those... | 06/07/1994 |
| 5187449 | Coplanar transmission line millimeter radiation source A structure for guiding millimeter wave radiation employs a resonant coplanar transmission line on a transparent substrate. A very short, picosecond, pulse is generated on the transmission line. By having the upper half plane air, the pulse will radiate i... | 02/16/1993 |
| 4980898 | Self-oscillating burst mode transmitter with integral number of periods A self-oscillating burst mode transmitter transmits an integral number of cycles of a carrier signal in each transmission burst. Each burst commences at a peak value of the carrier signal and terminates at a peak value. The transmitter includes an L-C tan... | 12/25/1990 |
| 4837525 | Transient waveform generator A transient waveform generator capable of generating waveforms having operator specifiable characteristics, including amplitude, rise time, and phase inversion.... | 06/06/1989 |
| 4833427 | Signal source for use with an LC tank circuit A signal source for generating a well-controlled, predictable oscillating output signal within a short, predetermined and constant start-up time is disclosed. The invention includes a switchable current source for selectively providing an electrical signa... | 05/23/1989 |
| 4446427 | Measuring and control device using the damping effect of a resistive effect element on the inductor of a tuned circuit A detection type device that includes an arrangement for detecting the energy absorbed by a resistive effect element in proximity to the inductor of a resonant circuit. The resonant circuit uses a direct current source to alternatively charge it and then ... | 05/01/1984 |
| 4348649 | Microwave power pulse generator A self-pulsing microwave generator with a quarter-wave resonator separated y an electron transit space from a field emission cathode is provided. The quarter-wave resonator acts as an anode and a DC voltage is supplied by a discharge capacitor and a DC cur... | 09/07/1982 |
| 4329627 | High frequency thyristor circuit for energizing a gaseous discharge lamp A circuit for energizing a gaseous discharge lamp at high frequency utilizing a thyristor, preferably an SCR. The energizing circuit for the lamp includes a resonant or tank circuit operating at an appropriate high frequency, preferably above the acoustic... | 05/11/1982 |
| 4257010 | Method and apparatus for sensing and maintaining oscillations in an oscillating system A method and apparatus for delivering energy to an oscillatory system in a signal transmitter to maintain the system in a state of oscillation. A component of the oscillatory system that affects the oscillation frequency is influenced by the magnitude of ... | 03/17/1981 |
| 4227195 | Fuze 1. A radar signal code generator comprising: a. first oscillator means comprising an output terminal for producing, at id terminal, a continuous signusoidal wave having a continuously varying frequency; and b. pulse generator means operatively connected to sai... | 10/07/1980 |
| 4059812 | Synchronous pulse generator including flywheel tank circuit with phase locked loop A circuit receiving a degraded synchronous pulse signal which has missing pulses and phase-shifted pulses, and producing an output signal similar to and at a constant phase angle with the input signal, in which the missing pulses have been replaced and th... | 11/22/1977 |
