| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 331049000 | Selectively connected to common output or oscillator substitution | 10 |
| 20080309415 | HIGH-FREQUENCY OSCILLATOR AND ELECTRONIC APPARATUS - In a high-frequency oscillator, a first resonance circuit and a second resonance circuit are respectively connected to a first amplifier circuit and a second amplifier circuit. A selection circuit includes a first switch circuit and a second switch circuit which selectively operate one of the first amplifier circuit and the second amplifier circuit. A grounded capacitor is connected to output sides of the first amplifier circuit and the second amplifier circuit. The grounded capacitor is commonly used by both the first amplifier circuit and the second amplifier circuit. An auxiliary grounded capacitor is connected between the first switch circuit and the first amplifier circuit. Accordingly, the grounded capacitor and the auxiliary grounded capacitor are connected to each other in parallel only when the first amplifier circuit is activated. | 12-18-2008 |
| 20090066428 | DEVICE FOR PROVIDING AN A.C. SIGNAL - A circuit for providing an A.C. signal including a number N of nanomagnetic oscillators, N being an integer greater than or equal to 2, each nanomagnetic oscillator providing a periodic signal; a unit for providing a control signal that can take N values, each periodic signal being associated with one of the values of the control signal; and a multiplexer receiving the N periodic signals and the control signal and providing the A.C. signal equal to one of the periodic signals according to the value of the control signal. | 03-12-2009 |
| 20090091398 | OSCILLATING APPARATUS - Provided is an oscillating apparatus that includes a plurality of variable frequency oscillators, each of which is provided in correspondence with a different oscillating band from one another; and a selection section that selects an oscillating signal that is from a variable frequency oscillator provided in correspondence with a designated oscillating band, from among the plurality of variable frequency oscillators, and outputs the selected oscillating signal, where the selection section includes a plurality of selectors connected in a tree structure, each selector outputting a selected one of inputted two or more oscillating signals, and each of the plurality of variable frequency oscillators is connected to a selector positioned at an end of the tree structure of the plurality of selectors. | 04-09-2009 |
| 20090102566 | OSCILLATOR PHASE MATCHING - A system comprises a primary oscillator that provides a first signal having a first phase and a backup oscillator that provides a second signal having a second phase. The system also comprises trim logic coupled to the backup oscillator logic. Prior to failure of the primary oscillator, the trim logic adjusts the second phase to match the first phase. Upon failure of the primary oscillator, the second signal is used in lieu of the first signal. | 04-23-2009 |
| 20090322434 | CONTROL METHOD FOR OPERATION MODES OF OSCILLATOR AND THE APPARATUS THEREOF - The present invention relates to a control method for the operation modes of an oscillator and the apparatus thereof, for which the method and the apparatus can be applied to the electronic circuits with multi-operation modes of the oscillator so as to correctly choose the desirable oscillator operation mode. Furthermore, an oscillator checking circuit sets up the oscillation mode automatically and judges if the oscillator operates properly. Hence, there is no need for the user to set up the oscillator operation mode manually. | 12-31-2009 |
| 20110074513 | Dual-Band Voltage-Controlled Oscillator Arrangement - In a dual-band capable voltage-controlled oscillator (VCO) device at least two voltage-controlled oscillator units (VCO1, VCO2) are coupled via a reactive component (A) and each said at least one voltage-controlled oscillator unit (VCO1, VCO2) further being connected to at least a respective external switching device (B1, B2) adapted to control an operating frequency of the A (VCO) device. | 03-31-2011 |
| 20130033331 | INJECTION-LOCKING A SLAVE OSCILLATOR TO A MASTER OSCILLATOR WITH NO FREQUENCY OVERSHOOT - An injection-locked oscillator circuit includes a master oscillator, a slave oscillator, and an injection lock control circuit. The slave oscillator is decoupled from the master oscillator (for example, due to an unlock condition). When the slave is free running, its oscillating frequency is adjusted (for example, as a function of a supply voltage). After an amount of time, the slave is to be relocked to the master (for example, due the unlock condition no longer being present). The slave oscillating frequency is made to be slightly lower than the master oscillating frequency. The slave is then only recoupled to the master upon detection of an opposite-phase condition between the master oscillator output signal and the slave oscillator output signal. By only recoupling the slave to the master during opposite-phase conditions, frequency overshoots in the slave oscillating frequency are avoided that may otherwise occur were the recoupling done during in-phase conditions. | 02-07-2013 |
| 20130222070 | RECONFIGURABLE VOLTAGE CONTROLLED OSCILLATOR FOR SUPPORTING MULTI-MODE APPLICATIONS - In accordance with an embodiment of the disclosure, circuits and methods are provided for using a reconfigurable voltage controlled oscillator to support multi-mode applications. A voltage control oscillator circuit comprises a resonant circuit, a first oscillator circuitry coupled to the resonant circuit, and a second oscillator circuitry coupled to the resonant circuit. The voltage control oscillator circuit further comprises switching circuitry configured to select, based on an operating metric, one of the first oscillator circuitry and the second oscillator circuitry for providing an output voltage. | 08-29-2013 |
| 20140312982 | CONTINUOUS PHASE ADJUSTMENT BASED ON INJECTION LOCKING - A phase-modification circuit is described. This phase-modification circuit reduces jitter by injecting a divided reference clock in a phase-locked loop from an auxiliary oscillator and by effectively gradually and completely transferring its phase to a master oscillator. The phase-correction strength in the phase-modification circuit is increased by successively coupling an edge in the divided reference clock over many cycles of a clock in the master oscillator. By increasing the correction strength, the phase error is effectively nulled out, thereby reducing the total absolute peak jitter. Moreover, because the correction is gradual and successive, the phase-modification circuit also significantly reduces the cycle-to-cycle jitter and half-cycle or edge jitter. | 10-23-2014 |
| 20150372664 | APPARATUS AND METHODS FOR SWITCH-COUPLED OSCILLATORS - Apparatus and methods for switch-coupled oscillators are disclosed. In certain implementations, an oscillator system includes a primary oscillator, one or more auxiliary oscillators, one or more switching circuits, and an oscillator control circuit. The oscillator control circuit can be used to control the one or more switching circuits to selectively couple the primary oscillator to all or a portion of the one or more auxiliary oscillators. The oscillator control circuit can also disable any auxiliary oscillators that are decoupled from the primary oscillator to reduce power consumption. By selecting a number of auxiliary oscillators to couple to the primary oscillator, the oscillator system can have a configurable phase noise versus power consumption profile. | 12-24-2015 |
