Nolan Laboratories Inc.

A wireless cortical implant system that measures EEG and stimulates the brain. The implant is powered by a wireless signal and delivers bidirectional telemetry information via a high speed infra red link through the skin. US Patent #8,165,684.

A non-invasive blood pressure system that measures the pressure waveforms of the internal carotid artery. A pressure sensing earpiece seals the ear canal and measures the pressure fluctuations within. US Patent # 6,004,274.

An RF system used to transmit power and telemetry signals to a hearing device implanted in the human skull.

An RF system used to transmit power transcutaneously to implanted nerve stimulators for a muscle training medical device.

Several low power RF human implantable telemetry systems from 15 kHz to 1 GHz for pacemakers, defibrillators, medical alarms and glucose sensors. These included implant circuitry, external circuitry and human compatible antennas.

Human implanted passive medical transponders at 900 MHz. The transponders would report medical measurements when illuminated with an RF incident to the body.

Several human implantable sensor technologies to measure cardiac and respiratory function.  One sensor employed a low power time domain reflectometer on a pacemaker lead to measure cardiac function, US Patent # 5,361,776. Another sensor could selectively measure cardiac or pulmonary function by changing the measurement frequency, US Patent # 5,197,467. A sensor was developed to greatly reduce artifact on a unipolar pacemaker lead, US Patent #5,201,808. Another sensor could measure cardiac motion without any connection to the heart, US Patent # 5,404,877.

The development of several electromagnetic phantoms for testing medical devices. These included phantoms for FDA and other regulatory compliance testing.

Developing solutions to several EMI issues regarding medical devices.

Other projects have included capacitively coupled defibrillators that do not require contact with the skin, resistance based blood flow measurements, signal processing methods for biological signals with a moving baseline, electromagnetic methods for determining hemothorax and pneumothorax, bubble detection, non invasive measurement of muscle tension and modeling blood pressure pulse propagation in arteries.

A wideband digital receiver and transmitter to record and reproduce the frequency and modulation of keyless entry systems. The system was designed for the US and European auto market. US Patent # 6,072,404.

An analog cellular phone signal booster to be used in the General Motors OnStar system. The system operated in the 800-900 MHz range.

Two dual mode CDMA cellular phone signal boosters, one stand alone the other microprocessor controlled. These boosters operated in both the 800-900 MHz and 1900 MHz band.

Automotive hands free cellular phone car kit for high volume manufacturing.

A 900 MHz car theft detection device for use in foriegn countries.

Analysis and test of a 800-900 MHz passive repeater stick on decal for cellular phones.

Analysis, test and resolution of noise figure problems in a hand held cellular phone.

Measurement of antenna patterns for various cell phone antennas mounted on automobiles.

The design and test of an antenna for use in trains.

An RF/microwave link carrying video, command and safety channels for remote control of military vehicles. Components included microwave and VHF antennas, amplifiers, filters, switches and signal combiners. All components passed military testing in the first trial.

A flexible dipole array to be used aboard the Space Shuttle for an imaging radar.

Microwave power amplifiers, digital control circuitry and power supply system  used aboard a space based satellite.

High speed bidirectional infra red data link for use in the human body to communicate with an external device.

Optical coatings to act as mode converters to trap infra red energy for energy harvesting and to alter infra red signatures.

Optical antennas and feedlines for a focal plane hyperspectral imaging polarimeter that gave complete Stokes Vector characterization of optical signals.

Optical antennas and feedlines that directly rectified light and infra red radiation for energy harvesting. Developed a technique to tune the antenna to the applied wavelengths.

Developed a wave description for the Lambertian Source model that accurately described the wave intensity as a function of angle over a slot in a ground plane.

Developed a method to determine particle density or velocity in an optical channel using autocorrelation functions of laser scintillations.

Solved various EMI/RFI emissions problems with RFID readers, automotive components, wide bed plotters, cellular phones and medical devices to pass FCC and other regulatory compliance. Problems solved quickly and cost effectively often with little or no redesign of product. US and international standards experience.

Extensive experience in designing circuit boards, wiring and enclosures to minimize EMI/RFI problems.

Design of various RF/microwave systems such as radio transmitters, receivers, telemetry systems, radiometers, medical instrumentation and micropower RF circuitry.

Extensive experience in the design of RF/microwave components such as low noise amplifers, power amplifiers, oscillators, mixers, synthesizers, discriminators, feedhorns, waveguides, antennas, logrithmic amplifiers, limiters and similar components.

In house equipment includes high speed digital oscilloscopes, network analyzers, RF synthesizers, spectrum analyzers, sweepers, time domain reflectometer, standard gain antenna, stereo microscope and tools for fabrication.

Software tools include frequency domain simulators such as Ansoft Serenade, time domain simulators such as MicroCap, NEC, MathCad, Eagle circuit layout and other proprietary software.