Bae Systems Information and Electronic Systems Integration Inc.

Gary J Lawrence

Paul Gili

Candice L Brittain

Brian M Tomaselli

Techniques are disclosed for optimizing power consumption in electronic devices that operate on battery-based or scavenged power. The power scavenged or otherwise supplied by such devices may therefore last longer, allowing longer performance on a given charge (whether sourced from scavenged power, battery power, or a combination thereof). An energy distribution circuit can be used in conjunction with a hysteretic switch, wherein the hysteretic switch can be used to switch an energy storage element in-circuit (so that it can provide charge to sub-circuitry or components) when the charge stored on that element exceeds a given charge threshold; otherwise, the hysteretic switch presents as a high resistance or open circuit when the charge stored on the energy storage element drops below a lower recharge threshold. The energy distribution circuit can be configured for adaptively providing different discharge rates for different loads.

Power management for power constrained devices

A wireless network connection system remotely connects to a network without the use of crystal reference oscillators. This provides communication at long range using a low transmit Effective Isotropic Radiated Power (EIRP). Operation is obtained through a combination of injection locking the system clock to the fundamental frequency of a remote reference oscillator, injection locking the transmitter to the third harmonic of the remote reference oscillator, a micro-watt RF receiver, and a network connection.

Growing community of inventors

Merrimack, NH, United States of America

Gary J Lawrence