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| Number | Title | Issue Date |
| 8031023 | Crystal oscillator for surface mounting The crystal oscillator for surface mounting includes: a container body having first and second recesses on both principal surfaces thereof; a crystal blank hermetically encapsulated within the first recess; and an IC chip in which an oscillation circuit using the cr... | 10/04/2011 |
| 5625327 | Modified Colpitts oscillator for driving an antenna coil and generating a clock signal A Colpitts-type oscillator circuit suitable for use with electronic identification systems is disclosed. The oscillator circuit utilizes a pair of transistors coupled together with a feedback loop that includes a parallel LC circuit such that the output a... | 04/29/1997 |
| 5034706 | Voltage-controlled variable oscillator, in particular for phase-lock loops A voltage-controlled variable oscillator, in particular for phase-lock loops, comprising a differential stage formed by a pair of transistors and collectors whereof define the output terminals between which an external resonating circuit is connected, a v... | 07/23/1991 |
| 4806884 | High frequency generator A high frequency generator for sinusoidal output power includes an LC-parallel resonance circuit as an output circuit. A plurality of HF-modules of small output are coupled to the output circuit. Each HF-module consists of a controlled switch S1.1, S1.2, ... | 02/21/1989 |
| 4492934 | Voltage controlled oscillator with linear characteristic A voltage controlled oscillator is provided with an LC parallel resonance circuit connected to the collector of one of a differential pair of transistors, and an amplifier and a capacitor which are connected between the collector of the one transistor and... | 01/08/1985 |
| 4085384 | Circuit for producing pulses by differentiating output of sawtooth oscillator The generator produces a pulse train with a given pulse duty factor and a relatively small pulse width, and comprises an oscillator including a resonance circuit having multiple frequencies and tuned to the fundamental frequency corresponding to the pulse... | 04/18/1978 |
| 4071832 | Current controlled oscillator An oscillator utilizing a pair of transistors interconnected with a resonance circuit in the collector circuits thereof such that by regulation of the current flow to the connected emitters, the frequency of oscillation is regulated.... | 01/31/1978 |
| 4035745 | Circuit for the production of an open alternating magnetic field In an induction energy transfer device comprising a static power conversion circuit for producing an alternating magnetic field of ultrasonic frequency of the type wherein the static power conversion circuit includes a parallel resonant circuit which comp... | 07/12/1977 |
| 4006433 | Bias/erase oscillator A low distortion sinusoidal oscillator made up of a two transistor negative resistance element combined with an LC tank for generating bias and erase signals for battery powered magnetic media recording apparatus.... | 02/01/1977 |
| 4001725 | High power R.F. induction heating generator A high power R.F. induction heating generator for inductively heating a load including a plurality of transistors of the same type series connected in a self-exciting class "C" oscillator configuration, a tank circuit having a tank coil electrically coupl... | 01/04/1977 |
