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Patent No. 5970981

Mouthguard made at least partially from an edible candy

A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.

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Class 331/108B - Phase shift oscillator


Subclass of Class 331 - Oscillators
No. of patents: 120
Last issue date: 04/22/2008


1      
NumberTitleIssue Date
7362192Low noise voltage-controlled oscillator
Oscillator circuits for reducing phase noise are described in this disclosure. In one embodiment, an oscillator circuit includes a pair of cross-coupled transistors, including a first transistor and a second transistor, a first inductor in communication with a contr...
04/22/2008
7342462Quadrature LC voltage controlled oscillator with opposed bias and coupling control stages
A voltage controlled oscillator unit is provided with cross coupled voltage controlled oscillators to generate quadrature phases. One control stage adjusts coupling between the oscillators. Another control stage adjusts the tail current that applies operating bias t...
03/11/2008
7336135Oscillator and semiconductor device
An oscillator for ensuring the phase relationship between two resonant circuits coupled by a coupling circuit. A first resonant circuit outputs two signals having different phases, and a second resonant circuit outputs two signals having different phases. The coupli...
02/26/2008
7315220Voltage controlled oscillator
A voltage controlled oscillator (VCO) having a single stage ring-oscillator having both coarse and fine control of the frequency of oscillation is described. In an embodiment the VCO may include a first n-channel latch having a first output and a second output; a fi...
01/01/2008
7302011Quadrature frequency doubling system
The frequency doubler of the present invention operates to provide an in-phase signal and a quadrature signal, each having a frequency equal to twice the frequency of a reference signal. The in-phase and quadrature signals are based on signals that are 0 degrees, 45...
11/27/2007
7295081Time delay oscillator for integrated circuits
One aspect relates to an oscillator, and various oscillator embodiments comprise an amplifier and line driver with an input and an output and a transmission line with a predetermined transmission signal time delay. The output is adapted to produce an inverted signal...
11/13/2007
7286022Resistor-capacitor (RC) oscillator insensitive to process, voltage, and temperature variances
There is provided a resistor-capacitor (RC) oscillator circuit insensitive to process, voltage, and temperature variances. The RC oscillator circuit includes a delay unit, a resistor unit, a capacitor, a resistor, and a first controller. The delay unit delays and ou...
10/23/2007
7283602Half-rate clock and data recovery circuit
A half-rate clock and data recovery (CDR) circuit includes a half-rate phase detector for detecting phases of an input signal and a half-rate clock, a charge pump circuit, a low-pass filter and a voltage controlled oscillator for feeding the half-rate clock back to ...
10/16/2007
7274216Duty cycle controlled CML-CMOS converter
There is provided a CML to CMOS converter comprising two current sources both connected between a first power supply, having a first potential, and a driving node, first and second push-pull drive stages each having a current path connected between a second power su...
09/25/2007
7230476Bipolar high impedance element
A bipolar high impedance element comprises a p-n diode made from a compound semiconductor, and circuitry arranged to reverse-bias the diode such that the diode conducts a nearly constant current—thereby enabling the element to be employed as a high impedance eleme...
06/12/2007
7221920Voltage controlled oscillator, frequency synthesizer and communication apparatus
A voltage controlled oscillator includes a resonator configured to resonate with an initial oscillation frequency during starting period of oscillation and a steady oscillation frequency during a steady state oscillation. The resonator includes a film bulk acoustic ...
05/22/2007
7205811Methods and apparatus for maintaining desired slope of clock edges in a phase interpolator using an adjustable bias
Methods and apparatus are provided for maintaining a desired slope of clock edges in a phase interpolator using an adjustable bias. The disclosed phase interpolator comprises at least one delay element to generate at least two interpolation signals each having an as...
04/17/2007
7202726Voltage controlled oscillator delay cell
A voltage-controlled oscillator design is disclosed that provides greater tuning range than a prior art differential amplifier design using “varactor” diodes. The design employs CMOS capacitors to replace varactor diodes. The CMOS capacitors are formed from PMOS...
04/10/2007
7196564High frequency balanced phase interpolator
A phase interpolation system includes an input stage that provides first and second modulated input signals having selected first and second relative phase angles. A weighting system is configured to steer a first portion of the first modulated input signal to an ou...
03/27/2007
7181181Multi-band transceiver for a wireless communication system
A local oscillation signal generator and a multi-band transceiver including the local oscillation signal generator are provided. The multi-band transceiver includes a fractional-N phased locked loop (PLL), a local oscillation signal generator, and a transmitter. The...
02/20/2007
7129780Compound load for differential circuits
An improved load configuration is provided for differential circuits which increases circuit bandwidth without increasing power dissipation. A differential circuit generally includes a differential pair of transistors having emitters coupled together. The improved l...
10/31/2006
7109799Current-controlled CMOS wideband data amplifier circuits
Expansion of the bandwidth of a wideband CMOS data amplifier is accomplished using various combinations of shunt peaking, series peaking, and miller capacitance cancellation. These various combinations are employed in any of the amplifier input stage, in intermediat...
09/19/2006
7076009Low power CDMA receiver
The present embodiments provide apparatuses and methods for use in receiving radio frequency signals. In some embodiments, a method receives an input signal comprising data and jamming signals, amplifies the input signal according to a first adjustable bias level an...
07/11/2006
7075377Quadrature voltage controlled oscillators with phase shift detector
In wireless application there is made use of a quadrature oscillators that generate signals that are capable of oscillating at quadrature of each other. The quadrature oscillator is comprised of two differential modified Colpitts oscillators. A capacitor bank allows...
07/11/2006
7057435Distributed delay-locked-based clock and data recovery systems
A clock and data recovery system using a distributed variable delay line is provided. The clock and data recovery system can use a delay-locked loop methodology to align a local clock with an incoming data stream. The variable delay line can include a transmission l...
06/06/2006
7042317High-frequency active inductor
An active inductor circuit implemented in sub-micron CMOS semiconductor technology is usable at gigaHertz frequencies and includes an input node, a non-inverting transconductor circuit comprising a differential pair of NMOS transistors connected to the input node, a...
05/09/2006
7012487Transconductance device employing native MOS transistors
A system on chip such as a radio receiver has reduced suceptibility to voltages in the bulk silicon by using gyrator elements in the receiver with each gyrator element including a plurality of current sources interconnected to provide output transconductance voltage...
03/14/2006
6995619Quadrature voltage controlled oscillator capable of varying a phase difference between an in-phase output signal and a quadrature output signal
Provided is a quadrature voltage controlled oscillator capable of varying a phase difference between an in-phase output signal and a quadrature output signal. The quadrature voltage controlled oscillator comprises a first voltage controlled oscillator, a second volt...
02/07/2006
6970048Inductive-capacitive (LC) based quadrature voltage controlled oscillator (VCO) with deterministic quadrature signal phase relationship
A circuit and method for generating quadrature signals with a deterministic phase relationship. Between two inductive-capacitive (LC) based quadrature voltage controlled oscillators (VCO), phase shift circuitry is interposed such that the individual LC VCO circuits ...
11/29/2005
6963252Controllable 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
6946924Low noise voltage controlled oscillator
A voltage controlled oscillator, comprising a pair of transistors connected to a tank circuit, said tank circuit including a plurality of tuning diodes connected in parallel with an inductor, said tuning diodes having cathodes connected to a common connection. ...
09/20/2005
6937107Device and method of quadrature oscillation
Briefly, devices and methods for tuning of quadrature oscillators which may be used, for example, in a Complementary Metal-Oxide Semiconductor (CMOS) process. Devices and methods in accordance with some exemplary embodiments of the invention may allow, for example, ...
08/30/2005
6903614Oscillator having an AC-coupling between fundamental frequency ground points
A method of locking a first differential oscillator with a second differential oscillator and a circuit and an arrangement therefor. The method comprises AC coupling a fundamental frequency AC-ground of the first differential oscillator with a fundamental frequency ...
06/07/2005
6891444Oscillator circuit for locking two or more LC-oscillators by mutual inductance coupling
A method of locking a first LC-oscillator with a second LC-oscillator and a circuit and an arrangement therefore. The method comprises coupling by mutual inductance a resonance inductor of the first LC-oscillator with a resonance inductor of the second LC-oscillator...
05/10/2005
6750727Low phase noise MOS LC oscillator
A cross-coupled differential MOS oscillator having reduced phase noise is applicable to a RF communication device such as a transmitter or receiver. The oscillator having low phase noise is formed of a frequency dependent amplifier to amplify a signal having a funda...
06/15/2004
6683508System and method of increasing a self-resonant frequency of a tuning circuit and an oscillator employing the same
A segmented inductor for use with a tuning circuit, a method of increasing a self-resonant frequency of a tuning circuit and an oscillator employing the circuit and method. In one embodiment, the tuning circuit includes a first inductive element having a ...
01/27/2004
6535071CMOS voltage controlled phase shift oscillator
Structures and methods for CMOS voltage controlled phase shift oscillators are provided. The CMOS voltage controlled phase shift oscillators, or phase shift circuit, includes any odd number of stages coupled in series. Each stage includes a CMOS amplifier...
03/18/2003
6504441Voltage controlled oscillator with selectable frequency range
A frequency sweep voltage controlled oscillator (VCO), with a selectable range of output frequencies is provided. The VCO includes a frequency range circuit to accept an input signal, differentially delay the signal, and selectably sum the delayed signals...
01/07/2003
6462626Quadrature output oscillator device
A quadrature output oscillator device (22) includes a first voltage controlled oscillator (40) and a second voltage controlled oscillator (44). The second voltage controlled oscillator (44) generates a first output (C) and a second output (D) to drive a f...
10/08/2002
6404308Phase-compensated impedance converter
Integrated circuits, for example, gyrator circuits include transistors that are preferably MOS devices and that are provided with series feedback networks, which compensate for the effects of channel delay in the MOS devices....
06/11/2002
6396360Method and circuitry for implementing an inductor-capacitor phase interpolated voltage-controlled oscillator
Method and circuitry for implementing an inductor-capacitor voltage-controlled oscillator with improved overall performance. In an exemplary embodiment, the present invention includes two phase shifters and an interpolator. The two phase shifters are coup...
05/28/2002
6344778Voltage-controlled oscillator, phase synchronization circuit and signal processing circuit
A delay-time variable filter delays an input signal by a desired time according to a control signal from a control input node and outputs the delayed input signal, and a positive feedback loop circuit changes the output signal (sinusoidal wave signal) fro...
02/05/2002
6239661Transmitter and an oscillator network for use in the transmitter
A transmitter having an integratable quadrature oscillator network for simultaneously producing a sine wave and a cosine wave. The digital direction of rotation (whether the frequency is positive or negative) input is slow rate limited (R, C3) and fed int...
05/29/2001
6215368Voltage controlled oscillating device
Voltage controlling/oscillating device comprises a terminal for setting the delay rate in the delay unit and the delay interpolator. Clock signal whose phase is inverted by the inverting gate is inputted into a first input terminal of the delay interpolat...
04/10/2001
6204733Multiple-phase-interpolation LC voltage-controlled oscillator
A phase interpolation voltage controlled oscillator (VCO). In one embodiment, the VCO is a multiple phase interpolation VCO. The multiple phase interpolation VCO includes a plurality of phase shifting cells each receiving an oscillating signal, and each p...
03/20/2001
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