PAUL RYAN, MD
Radiology at Olentangy River Rd, Columbus, OH

4395906, Aug 2, 1983

Jan 16, 1981

6/225814

Paul A. Ryan - Columbus OH
Kenneth A. Ostrander - Columbus OH
David L. West - Columbus OH

Minnesota Mining and Manufacturing Co. - St. Paul MN

G01W 108

73170R

A storm mapping system detects electrical activity caused by weather phenomona such as lightning strokes, and the like and displays information related to the electrical activity indicative of storm location in a frame of reference in which the observation location is taken as the origin. In order to give the observer good spatial understanding, signals detected from a relatively close disturbance (which produces relatively large signals) are displayed relatively close to the observation location as compared to display of signals generated from a relatively further disturbance which produces relatively smaller signals which are displayed relatively far from the observation location. The limited resolution display is effectively driven by signals read from digital storage wherein mapping between the different display segments and digital storage is maintained. The display indicates, in addition to location, intensity of the disturbance by providing a steady illumination for disturbances of relatively low intensity, a slowly flashing display for disturbances of increased intensity, and a quickly flashing display for disturbances of highest intensity.

3943471, Mar 9, 1976

Aug 2, 1974

5/494245

Paul A. Ryan - Columbus OH

H03J 502

334 59

A digital tuning device for accurate selectable tuning of a resonant circuit. The inductive and capacitive elements of the resonant circuit are connected by a transformer device whose turns ratio is variable in accurate digital increments. Since the reflected reactance is related to the square of the turns ratio and since the resonant frequency varies as the inverse square root of the reactance, the resonant frequency of the circuit is directly related to the turns ratio.

4383260, May 10, 1983

Mar 27, 1981

6/248621

Paul A. Ryan - Columbus OH

Minnesota Mining and Manufacturing Co. - Saint Paul MN

H01Q 126, G01W 100

343701

A low profile electric field sensor is arranged to sense electric field potentials with respect to a local ground plane. The sensor includes an antenna in a generally planar format with a major dimension extending generally parallel to the local ground plane. To maintain signal to noise ratio, while at the same time minimizing the height of the antenna so as to provide a low profile, the antenna is coupled to a charge amplifier. The charge amplifier comprises an operational amplifier, preferably with a capacitor feedback between output and an inverting input, and the antenna is conductively connected to the inverting input.

4023408, May 17, 1977

Jun 10, 1976

5/694620

Paul A. Ryan - Columbus OH
Nicholas Spitzer - Columbus OH

Dytronics Company, Inc. - Columbus OH

G01W 100

73170R

A storm mapping system detects electrical activity caused by weather phenomena such as lightning strokes and the like and displays information related to the electrical activity as indicative of storm location with reference to an origin which is taken as the observer's location. A cathode ray tube (or other display means) provides a display and locations thereon are illuminated in response to the electrical activity. The azimuth of the display is indicative of the azimuth of the electrical activity. The distance from the reference location to any illuminated location is a function of the signal strength. Although signal strength is not a precise indicator of distance, it is a useful data item in that the more severe storms generate the maximum signal strengths. In contrast to the prior art systems, the storm mapping system of this invention illuminates a location whose distance from the origin is inversely related to signal strength. In this manner, electrical activity closest to the observer's location is displayed as such.