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| Number | Title | Issue Date |
| 8031017 | Method and apparatus for determining within-die and across-die variation of analog circuits Described herein is the method and apparatus for determining frequency of an oscillator coupled with one or more analog devices, and for determining within-die or across-die variations in an analog property associated with the one or more analog devices, the determi... | 10/04/2011 |
| 7646255 | Voltage controlled oscillator module with ball grid array resonator A voltage controlled oscillator (VCO) assembly and module incorporating a ball grid array resonator as part of the tank circuit of the voltage controlled oscillator. The VCO module preferably incorporates at least an oscillator circuit, the tank circuit, and an outp... | 01/12/2010 |
| 7394327 | Surface mount type temperature-compensated crystal oscillator A surface mount type temperature-compensated crystal oscillator includes a crystal blank; an IC chip integrating an oscillation circuit using the crystal blank and a temperature compensation mechanism of compensating frequency temperature characteristics of the crys... | 07/01/2008 |
| 7378780 | Surface mount type crystal oscillator A surface mount type crystal oscillator includes: a container body composed of a laminated ceramic including a plate-shaped center layer, and first and second frame layers stacked on opposite surfaces of the center layer respectively; a crystal blank hermetically se... | 05/27/2008 |
| 7352255 | Circuit, system, and method for fine tuning crystal frequency accuracy Circuits, systems, and methods for fine tuning crystal frequency accuracy are disclosed. One such circuit fine tunes crystal frequency accuracy with a tunable fractional capacitance. The circuit includes an effectively constant capacitance coupled, e.g., fixedly, wi... | 04/01/2008 |
| 7342308 | Component stacking for integrated circuit electronic package Component stacking for increasing packing density in integrated circuit packages. In one aspect of the invention, an integrated circuit package includes a substrate, and a plurality of discrete components connected to the substrate and approximately forming a compon... | 03/11/2008 |
| 7312671 | Multiplier crystal oscillator The present invention has a configuration such that in a multiplier crystal oscillator wherein a multilayer board having earthing metal films on both principal planes of an intermediate board, and mount boards laminated on both sides thereof, and at least one multip... | 12/25/2007 |
| 7268637 | Low cost RF oscillator devices manufactured from conductive loaded resin-based materials Inductor-capacitor (LC) oscillator circuits are formed of a conductive loaded resinbased material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a... | 09/11/2007 |
| 7256659 | Temperature compensated crystal oscillator and method of manufacturing same A temperature compensated crystal oscillator has a package body, a crystal blank hermetically sealed in a first recess of the package body, and an IC chip which includes an oscillation circuit electrically connected to the crystal blank, and a temperature compensati... | 08/14/2007 |
| 7256658 | Surface mount crystal oscillator A surface mount quartz crystal oscillator includes: a quartz crystal unit having a plurality of first connection terminals on its bottom surface, and a mounting substrate formed with a depression, which accommodates an IC chip inside the depression. The side of the ... | 08/14/2007 |
| 7250826 | Mutual inductance in transformer based tank circuitry Placing inductors or resistors in parallel causes the combined value of inductance or resistance to decrease according to the parallel combination rule. This invention decreases the parasitic resistance of an inductor by placing several inductors in parallel. Furthe... | 07/31/2007 |
| 7242258 | Temperature-compensated crystal oscillator An inventive temperature-compensated crystal oscillator has a construction such that a crystal oscillator element (5) is accommodated in a container (1) and an IC element (7) for controlling an oscillation output on the basis of the oscillation ... | 07/10/2007 |
| 7239211 | Temperature-compensated crystal oscillator A temperature-compensated quartz crystal oscillator includes a substrate having a circuit pattern disposed on a surface thereof and mounting electrodes disposed on a reverse side thereof and electrically connected to the circuit pattern, circuit components mounted o... | 07/03/2007 |
| 7211926 | Temperature compensated oscillator including MEMS resonator for frequency control Disclosed is an oscillator that relies on redundancy of similar resonators integrated on chip in order to fulfill the requirement of one single quartz resonator. The immediate benefit of that approach compared to quartz technology is the monolithic integration of th... | 05/01/2007 |
| 7196915 | Integrated transformer based step-up converter A step-up converter based on an integrated transformer, comprising a self-resonating oscillator circuit that has inductive elements constituted by primary and secondary windings of at least one first transformer, the self-resonating oscillator circuit being powered ... | 03/27/2007 |
| 7190235 | Surface mounted crystal unit A surface mounting base for an oscillator that is provided with: an insulation base comprising a casing wall having a through hole; a sealing glass that is filled into the through hole and forms a space part on one principal surface side of the insulation base; and ... | 03/13/2007 |
| 7157982 | Wien-Robinson oscillator with stabilized output voltage In a Wien-Robinson oscillator, a negative feedback path and a positive feedback path are arranged between the output of an operational amplifier and a reference ground potential. The negative feedback path contains two resistors which are connected in series and who... | 01/02/2007 |
| 7158767 | Tuneable frequency translator A tuneable frequency translator is disclosed having electrical circuitry mounted to a circuit board. The circuitry is designed to provide a phase-locked loop with a resonator. Compliant material is positioned between the resonator and the circuit board. Operably cou... | 01/02/2007 |
| 7154349 | Coupled-inductor multi-band VCO A multi-band VCO employs a coupled-inductor based resonator having N≧2 ports. Each port has an inductor and at least one capacitor. The N inductors for the N ports are magnetically coupled. The inductors/ports may be selectively enabled and disabled to allow the V... | 12/26/2006 |
| 7126412 | Preamplification circuit This preamplification circuit comprises a first circuit section, second circuit section the input signal of which is the output signal of the first circuit section, and third circuit section which is connected with the input section of the first circuit section and ... | 10/24/2006 |
| 7123108 | Surface mount crystal oscillator A surface mount quartz crystal oscillator has a package body having a bottom wall and a first frame wall laminated on the bottom wall and having a central opening, a quartz crystal blank accommodated in a recess formed in the package body including the central openi... | 10/17/2006 |
| 7123107 | Piezoelectric oscillator, manufacturing method thereof, and electronic device To provide a piezoelectric oscillator which can be reduced in size by reducing the planar size. With regard to a layered lead frame comprising two lead frames and, connection leads for connection with a piezoelectric resonator are formed on the upper lead frame and ... | 10/17/2006 |
| 7116183 | Temperature compensated voltage controlled oscillator A VCO with temperature compensation is achieved using reverse biased diodes. The VCO includes an amplifier that provides the required signal gain, a resonator tank circuit that provides the required phase shift, and at least one frequency tuning circuit for tuning t... | 10/03/2006 |
| 7061338 | Average controlled (AC) resonator driver Circuits and methods are given, to realize and implement an oscillator circuit with an Average Controlled (AC) Resonator Driver. A newly introduced additional Field Effect Transistor within a voltage average stabilizing regulation loop controlling the crystal oscill... | 06/13/2006 |
| 7061339 | Enhanced architectures of voltage-controlled oscillators with single inductor (VCO-1L) Methods to achieve low power consumption, high output amplitude and an improved high frequency stability, and high speed for voltage-controlled oscillators are disclosed These methods includes to provide a current mirror, a power supply voltage Vdd, two single-ended... | 06/13/2006 |
| 7057469 | High speed differential voltage controlled oscillator A differential negative resistance source that provides negative resistance to a differential resonator of a differential VCO. The differential negative resistance source includes first and second active devices, each having first and second current terminals and a ... | 06/06/2006 |
| 7023288 | Piezoelectric oscillator and its manufacturing method A piezoelectric oscillator comprising a piezoelectric vibrator with a piezoelectric vibrating element housed in a package and bottom terminals formed on the outer side of the bottom of the package, a circuit board with at least one electronic circuit component mount... | 04/04/2006 |
| 7020229 | Phase-locked loop A phase-locked loop is described and has a phase detector that provides at its output per clock cycle a current pulse whose pulse duration is a measure of a phase difference between an input signal and an output signal of the phase-locked loop. A loop filter is conn... | 03/28/2006 |
| 6998925 | Surface-mount crystal oscillator A surface-mount crystal oscillator includes a quartz crystal unit, a mounting substrate on which an IC (Integrated Circuit) chip is mounted and which is bonded to the rear surface of the crystal unit, and an electronic components which is mounted on one end of the s... | 02/14/2006 |
| 6995592 | Method and system for generating variable frequency cyclic waveforms using pulse width modulation A method and system for generating variable frequency cyclic waveforms using pulse width modulation (PWM) to provide adjustable precision frequency and enhanced resolution is disclosed. The technique includes a plurality of sets of duty cycle values, each set corres... | 02/07/2006 |
| 6963252 | Controllable oscillator with amplitude stabilization Controllable oscillator circuit comprising a regenerative loop which incorporates a cascade circuit of first and second sections each having a controllable gain and a phase shift which is 90° at the oscillation frequency, the first and second sections comprising fi... | 11/08/2005 |
| 6946922 | Crystal oscillation device and electronic device using the same A crystal oscillation device includes a crystal oscillator including a package with first connecting electrodes provided on a flat bottom surface mounted on a flat, thin circuit board. Circuit components and second connecting electrodes provided in one-to-one corres... | 09/20/2005 |
| 6943635 | Optimum RF VCO structure A voltage-controlled oscillator (VCO) formed upon a substrate with a first inductor being offset from a second inductor in one of three dimensions and forming a common area that may contain at least one of a varactor, capacitor, oscillator, or switch. ... | 09/13/2005 |
| 6943636 | Oscillator for SERDES An LC voltage controlled oscillator for use in a SERDES. The oscillator comprises a pair of cross coupled field effect transistors coupled with a pair of multi-layer inductors. ... | 09/13/2005 |
| 6882232 | Surface-mount crystal oscillator A surface-mount quartz crystal oscillator has a quartz crystal unit, a mounting substrate joined to a reverse surface of the crystal unit, an IC (Integrated Circuit) chip accommodated in the mounting substrate and electrically connected to the crystal unit in provid... | 04/19/2005 |
| 6876264 | Surface-mount crystal oscillator A surface-mount quartz crystal oscillator has a casing having a recess defined therein, a quartz crystal blank fixedly mounted on the bottom of the recess, and an IC (Integrated Circuit) chip having an integrated oscillating circuit connected to the crystal blank. T... | 04/05/2005 |
| 6870430 | PLL-controlled oscillator A PLL (Phase-Locked Loop)-controlled oscillator has a temperature-compensated crystal oscillator having a quartz crystal unit, an oscillating circuit connected to the crystal unit, and a temperature compensating mechanism for generating a temperature compensating vo... | 03/22/2005 |
| 6847265 | Temperature-compensated crystal oscillator A temperature-compensated crystal oscillator has a mounting substrate for surface-mounting, a crystal oscillator, a temperature compensating circuit for compensating for frequency vs. temperature characteristics of the crystal oscillator, and a frequency adjusting c... | 01/25/2005 |
| 6838949 | Voltage control oscillator and manufacturing method thereof A manufacturing method of voltage control oscillator (VCO) has the following steps. Firstly, a baseboard having an opening is provided. Then, an adjustable electronic device is installed on the baseboard, and an adjustable area of the adjustable device faces the ope... | 01/04/2005 |
| 6819191 | Piezoelectric oscillator unit A piezoelectric oscillator unit maintains the adhesive force of a quartz vibrator package with respect to a circuit substrate even when the solder connecting the quartz vibrator package to the circuit substrate melts. This prevents the vibrator package from lifting ... | 11/16/2004 |
