| Patent application number | Description | Published |
|---|
| 20100289587 | SYSTEM AND METHOD FOR REDUCING POWER CONSUMPTION OF AN OSCILLATOR - An apparatus for generating an oscillating signal including a negative-resistance circuit, a crystal, and a component to modify a series resonance of the crystal to decrease power consumption of the negative-resistance circuit in generating the oscillating signal. The component may include a positive-reactance circuit, one or more inductive elements, or pair of inductive elements coupled to the crystal. The apparatus may further include a frequency-tuning component for adjusting a frequency of the oscillating signal, such as a variable capacitor coupled to the crystal. The negative-resistance circuit may include a digital inverter circuit, an inverting analog amplifier, or a self-regulating circuit. The apparatus may further include a quiescent current source to supply a steady-state current to the negative-resistance circuit, and a start up current source to supply a boost current to the negative-resistance circuit only during start up to expedite the oscillating signal in reaching a defined steady-state condition. | 11-18-2010 |
| 20100289591 | SYSTEM AND METHOD FOR EFFICIENTLY GENERATING AN OSCILLATING SIGNAL - An apparatus for generating an oscillating signal including an oscillator configured to generate the oscillating signal, a controller configured to generate a control signal that controls a characteristic (e.g., amplitude or frequency) of the oscillating signal, and a power supply configured to supply power to the oscillator as a function of the control signal. The power supply may be configured to supply power to the oscillator as a function of the amplitude or frequency of the oscillating signal to improve power efficiency. | 11-18-2010 |
| 20100295379 | SYSTEM AND METHOD FOR SUPPLYING POWER TO A LOAD - An apparatus for supplying power to a bursty or highly dynamic load. The apparatus includes a first circuit for supplying charge to the load at a first voltage, and a second circuit for replenishing the charge depleted from the first circuit, wherein the second circuit is charged at a second voltage greater than the first voltage in order to achieve a defined rate of charge replenishment. The apparatus may include a feedback network for controlling the voltage applied to the load in response to process and temperature variations. The feedback network may regulate the charge capacity of the second circuit, the resistance between the first and second circuits, the duration of the charge replenishment, or the second voltage in which the second circuit is charged. | 11-25-2010 |
| 20100308661 | SYSTEM AND METHOD FOR SUPPLYING POWER ON DEMAND TO A DYNAMIC LOAD - An apparatus for supplying power to a load. The apparatus including a plurality of sources to provide charge, and a controller adapted to control a transfer of charge from the sources to the load at distinct times. The controller may control the transfer of charge based on variation of an ambient condition or a manufacturing process. The controller may control the transfer of charge to generate a defined voltage across the load. The apparatus may include a regulator adapted to regulate a voltage across the load. The regulator may regulate the voltage across the load in a defined timing relationship with the transfer of charge from the sources to the load. | 12-09-2010 |
| 20110058623 | SYSTEM AND METHOD FOR GENERATING A DEFINED PULSE - Apparatus for generating a first signal (e.g., a pulse) including a current source adapted to generate a current based on a second signal that defines an amplitude of the current and a third signal that defines the timing of an amplitude change of the current, and an impedance element through which the current flows to generate the first signal. The impedance element may comprise a resonator having a resonant frequency approximate the center of the first signal frequency spectrum. An LO may be used to generate the third signal to control the timing of the amplitude change of the current. A detector may enable the current source in response to detecting a defined steady-state condition of the LO clock signal, and may disable the current source in response to the completion of the first signal. A controller may generate the second signal to control the current amplitude so as to perform power control and/or other functions. | 03-10-2011 |
