Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 8188796 | Digital phase-locked loop clock system A clock system includes a digital phase/frequency detector (DPFD), a buffer, a digitally-controlled oscillator (DCO) including a sigma-delta modulator (SDM), an adder, a first frequency divider. The DPFD may have a first input for a reference input clock, a second i... | 05/29/2012 |
| 8174327 | Method and system for configuration of a phase-locked loop circuit Example embodiments are directed toward configuration of a phase lock loop (PLL) circuits for low power operation. In particular embodiments, a fraction related to a desired gain of a PLL circuit is determined. A set of possible frequency-divider values and a set of... | 05/08/2012 |
| 8164391 | Synchronization of multiple high frequency switching power converters in an integrated circuit A phase locked loop is used to synchronize the switching frequency of a high frequency switching power converter to a clock signal. A switching power converter integrated circuit is a tile-based power management unit and includes an oscillator and multiple tiles of ... | 04/24/2012 |
| 8067989 | Alternate clock apparatus and methods for improving radio performance An alternate clock apparatus and method configured to reduce noise in selected frequency bands in an electronic device such as a communication device is described. In one embodiment the alternate clock includes a ring oscillator to generate multiple time shifted sig... | 11/29/2011 |
| 8035452 | Structure for transforming an input voltage to obtain linearity between input and output functions and system and method thereof A design structure is embodied in a machine readable medium for designing, manufacturing, or testing a design. The design structure includes a first structure for determining a non-linear characteristic of the input voltage to the output frequency response, the firs... | 10/11/2011 |
| 7944314 | Low frequency oscillator for burst-mode dimming control for CCFL driver system Oscillator system and method thereof. The oscillator system includes a first voltage-to-current converter configured to receive a first voltage and generate a first current based on at least information associated with the first voltage, and a second voltage-to-curr... | 05/17/2011 |
| 7800453 | Apparatus and methods for radar imaging based on injected push-push oscillators The present invention relates to radar imaging and to phased array antennas. The invention also relates to transmitter/receiver modules, push-push oscillators and Injection locked push-push oscillators for phased array antennas. The invention reduces the production ... | 09/21/2010 |
| 7719369 | Sigma delta digital to analog converter with wide output range and improved linearity A sigma delta DAC using a single DAC to generate a first analog quantity portion and a second analog quantity portion, having a strength respectively proportionate to the most significant bits (MSBs) and least significant bits (LSBs) of a received digital value. The... | 05/18/2010 |
| 7679455 | Technique for expanding an input signal A technique for expanding an input signal includes receiving the input signal at a first node of a voltage expander and generating a plurality of expanded signals on different outputs of the voltage expander responsive to the input signal. In certain embodiments, ea... | 03/16/2010 |
| 7649422 | Real time clock integrated circuit and electronic apparatus using the same A real time clock integrated circuit (RTC IC) and an electronic apparatus thereof are provided. In the RTC IC, only a low-power oscillator is used for generating a standard clock for a real time counter, and the standard clock with a frequency drift of the low-power... | 01/19/2010 |
| 7639091 | Device for generation of a reference frequency and corresponding electronic circuit A device for generation of a reference frequency includes a component configured for generating a reference voltage, and a slaving circuit configured for slaving the reference frequency to the reference voltage. ... | 12/29/2009 |
| 7511581 | Wide-band multimode frequency synthesizer and variable frequency divider A wide-band multimode frequency synthesizer using a Phase Locked Loop (PLL) is provided. The multiband frequency synthesizer includes a multimode prescaler, a phase detector/a charge pump, a swallow type frequency divider, and a switching bank LC tuning voltage-cont... | 03/31/2009 |
| 7486148 | Controllable oscillator with output oscillation adjustment and method for producing an output oscillation for use therewith A controllable oscillator includes an output oscillation adjust module operably coupled to an oscillator for producing an effective output oscillation based on an oscillation control signal. The output oscillation adjust module includes an output select block that p... | 02/03/2009 |
| 7443254 | Relaxation oscillator with propagation delay compensation for improving the linearity and maximum frequency A tunable oscillator comprises a control supply configured to output a control output operable to tune the tunable oscillator. The tunable oscillator further comprises an oscillator circuit configured to output a signal such that a frequency of the signal increases ... | 10/28/2008 |
| 7443259 | Fast VCO band selection by frequency to voltage converter The invention comprises a phase locked loop that has an input adapted to receive a reference frequency. A phase detector is connected directly to the input, a charge pump is connected directly to the phase detector, and a loop filter is connected directly to the cha... | 10/28/2008 |
| 7436903 | Multicarrier transmitter and method for transmitting multiple data streams with cyclic delay diversity A multicarrier transmitter may transmit cyclically delayed linear combinations of two or more data streams with three or more antennas. In some embodiments, the multicarrier transmitter may transmit cyclically delayed linear combinations of three data streams with f... | 10/14/2008 |
| 7432516 | Rapid cycling medical synchrotron and beam delivery system A medical synchrotron which cycles rapidly in order to accelerate particles for delivery in a beam therapy system. The synchrotron generally includes a radiofrequency (RF) cavity for accelerating the particles as a beam and a plurality of combined function magnets a... | 10/07/2008 |
| 7432768 | Voltage controlled digital analog oscillator and frequency synthesizer using the same Provided are a voltage controlled digital analog oscillator and a frequency synthesizer using the same, the oscillator comprising an oscillator having a frequency of an output signal being determined by a voltage inputted to an analog input end and a digital value i... | 10/07/2008 |
| 7432769 | Oscillator circuit The oscillating unit 11 generates a signal having a frequency of n*f, i.e., n times a target frequency f. The control voltage generation circuit 21 compares the phase difference between a divided signal of a signal generated in the oscillating unit ... | 10/07/2008 |
| 7429898 | Clock signal generating circuit, semiconductor integrated circuit and method for controlling a frequency division ratio A clock signal generating circuit is disclosed. The clock signal generating circuit includes: a reference clock signal generating unit for generating a reference clock signal; a plurality of frequency dividing units for carrying out frequency dividing of the referen... | 09/30/2008 |
| 7429895 | Systems and methods for drift compensation in a control circuit Various systems and methods for drift compensation are disclosed. As one example, a system for compensating drift in a control circuit is disclosed that includes at least two control signals. One of the control signals is provided by a circuit that is susceptible to... | 09/30/2008 |
| 7423493 | Wireless communication semiconductor integrated circuit device and mobile communication system An RF IC in which a PLL circuit including a loop filter is incorporated into a semiconductor chip is achieved without increasing power consumption or chip size. The RF IC includes a VCO capable of switching oscillation frequency bands, a variable frequency divider, ... | 09/09/2008 |
| 7424280 | Frequency synthesizer and frequency synthesis method A dual frequency synthesizer includes a reference oscillator, an R counter, a first fractional-N phase-locked loop (for a receiving channel) and a second fractional-N phase-locked loop (for a transmitting channel) and one shared sigma-delta modulator. The reference ... | 09/09/2008 |
| 7417514 | Method for modulating phase or frequency in a communication system using clock division A direct division modulator is provided. The direct division modulator includes a symbol mapper converting the input data from a binary bitstream to a desired frequency deviation, such as where the frequency deviation data encodes the information from the bitstream.... | 08/26/2008 |
| 7414489 | Phase controlled oscillator circuit with input signal coupler An oscillating signal in an oscillator is caused to phase shift toward the phase of an input signal coupled to the oscillating signal. The resonant frequency of the oscillator is about equal to an integer multiple of the frequency of the input signal. The input sign... | 08/19/2008 |
| 7411464 | Systems and methods for mitigating phase jitter in a periodic signal An oscillator circuit can generate a periodic signal, and a frequency adjustment circuit can adjust the frequency of the periodic signal. The periodic signal may include phase jitter. In one aspect of the invention, the phase jitter may be mitigated by connecting ot... | 08/12/2008 |
| 7411461 | Frequency and/or phase lock loops with beat frequency estimation A control loop (10) for producing an output signal with a stable nominal frequency is provided. The control loop includes inputs for reference (11) and oscillator (25) output signals, a beat frequency generator (12) for producing a signal... | 08/12/2008 |
| 7409029 | Transmission device for automatically set an optimal point for a signal decision making There is provided a flexible transmission device capable of automatically setting an optimal point for a signal decision making with high accuracy, so that highly reliable high-quality signal regeneration control is achieved. A clock timing extraction circuit dynami... | 08/05/2008 |
| 7408415 | Voltage controlled oscillator phase locked loop circuit with loop filter capacitance tuning A phase locked loop circuit comprises a voltage controlled oscillator with a control input to which a variable control voltage is applied and a phase-frequency discriminator with an output connected to a loop filter to produce the control voltage. To provide the pha... | 08/05/2008 |
| 7408420 | Multi mode clock generator In some embodiments, a clock generator is provided that provides a generator clock. The clock generator comprises a first clock source to provide a first clock and a second clock source to provide a second clock whose frequency at least indirectly tracks a supply to... | 08/05/2008 |
| 7405633 | Methods and apparatus for loop bandwidth control for a phase-locked loop A method for controlling loop bandwidth of a phase locked loop is described. The method includes setting the loop bandwidth to a value, calculating at least one of a phase error and a frequency change that occur subsequent to any setting or adjusting of loop bandwid... | 07/29/2008 |
| 7405630 | Frequency synthesizer with improved spurious performance A loop filter for use in a frequency synthesizer provides improved spurious performance using switched capacitors. The loop filter includes a first switched capacitor having a first capacitance value and which is operable to charge to a first voltage corresponding t... | 07/29/2008 |
| 7400210 | Voltage controlled oscillator, PLL circuit, pulse modulation signal generating circuit, semiconductor laser modulation device and image forming apparatus An oscillation frequency control part includes a voltage-to-current converting circuit converting an input voltage to a current having a value corresponding to the input voltage, and outputting a current in proportion to the current obtained from the voltage-to-curr... | 07/15/2008 |
| 7400205 | Frequency synthesizer and oscillation control method of frequency synthesizer The present invention provides a frequency synthesizer capable of switching an oscillation frequency band while maintaining a lock state realized with a small-scale and low-current-consumption circuit configuration, and an oscillation control method of the frequency... | 07/15/2008 |
| 7397316 | Ring oscillator for calibrating phase error and phase-error calibration method therefor A ring oscillator and a phase error calibration method are provided. The ring oscillator may include a first voltage-current converter for controlling and outputting an amount of tail current Itail according to a magnitude of a first control voltage applied in feedb... | 07/08/2008 |
| 7397319 | Apparatus and method for phase lock loop gain control A gain compensator compensates for the gain variation of a varactor-tuned voltage tuned oscillator (VCO) in a phase lock loop (PLL). The VCO includes a parallel LC circuit having multiple fixed capacitors that can be switched-in or switched-out of the LC circuit acc... | 07/08/2008 |
| 7394322 | Phase locked loop A phase locked loop circuit, for providing an oscillating output signal at an output frequency, including: a reference counter; a loop counter; a phase detector having a first input coupled to the reference counter and a second input coupled to the loop counter; a v... | 07/01/2008 |
| 7394320 | Phase-locked loop and method for operating a phase-locked-loop A phase-locked loop suitable for mobile radio communications and a method for operating the same is disclosed. One embodiment of the phase-locked loop comprises an oscillator, a counter, a comparator, and a delay arrangement. The counter comprises a first input conn... | 07/01/2008 |
| 7391270 | Phase locked loop and method for phase correction of a frequency controllable oscillator A phase locked loop is disclosed and includes a frequency divider circuit with a settable division ratio in a feedback path. The division ratio is produced using a control circuit which, besides an input for supplying the integer and fractional components for the fr... | 06/24/2008 |
| 7385451 | Arrangement, phase locked loop and method for noise shaping in a phase-locked loop A noise shaping arrangement for a phase locked loop includes a first order sigma-delta modulator arranged to provide a first-order quantized output and a feedback path output. A second order sigma-delta modulator is arranged to receive the feedback path output and p... | 06/10/2008 |
