Richard E Speck

US Patent:

49261703, May 15, 1990

Filed:

Feb 12, 1987

Appl. No.:

7/013812

Inventors:

George Beggs - Boulder CO
Richard Speck - Denver CO

Assignee:

Auto-Sense, Ltd. - Englewood CO

International Classification:

G08G 116

US Classification:

340904

Abstract:

Apparatus for detecting the presence of an object within an area under surveillance employs an electro-optical emitter for directing light into the area and an electro-optical receiver for sensing light reflected from the object which originates from the emitter. The emitter emits light energy of a preselected wavelength and is modulated at a preselected frequency to provide the emanating light energy with a characteristic signature. Light reflected by an object within the area under surveillance is filtered and converted to an electrical signal which varies in accordance with the magnitude of the filtered light having the preselected wavelength and modulation frequency. A selected portion of the electrical signal is amplified by a band-pass amplifier and is synchronously sampled in accordance with the modulation frequency to determine the magnitude of the filtered light which originated from the emitter. The sampled signal is compared with a threshold value to determine whether an object is present within the area under surveillance. The emitter and receiver are covered by a transparent shield to protect them against foreign matter.

US Patent:

47664215, Aug 23, 1988

Filed:

Feb 19, 1986

Appl. No.:

6/831016

Inventors:

George Beggs - Boulder CO
Richard Speck - Denver CO

Assignee:

Auto-Sense, Ltd. - Englewood CO

International Classification:

G08G 116

US Classification:

340904

Abstract:

Apparatus for detecting the presence of an object within an area under surveillance employs an electro-optical emitter for directing light into the area and an electro-optical receiver for sensing light reflected from the object which originates from the emitter. The emitter emits light energy of a preselected wavelength and is modulated at a preselected frequency to provide the emanating light energy with a characteristic signature. Light reflected by an object within the area under surveillance is filtered and converted to an electrical signal which varies in accordance with the magnitude of the filtered light having the preselected wavelength and modulation frequency. A selected portion of the electrical signal is amplified by a band-pass amplifier and is synchronously sampled in accordance with the modulation frequency to determine the magnitude of the filtered light which originated from the emitter. The sampled signal is compared with a threshold value to determine whether an object is present within the area under surveillance. The emitter and receiver are covered by a transparent shield to protect them against foreign matter.

US Patent:

D2578514, Jan 13, 1981

Filed:

Mar 13, 1978

Appl. No.:

5/886989

Inventors:

Richard P. Speck - Denver CO

International Classification:

D1605

US Classification:

D16 39

US Patent:

48395129, Jun 13, 1989

Filed:

Jan 27, 1987

Appl. No.:

7/007256

Inventors:

Richard P. Speck - Denver CO

Assignee:

Tactilitics, Inc. - Boulder CO

International Classification:

G01D 534

US Classification:

250231P

Abstract:

Apparatus for sensing locations and magnitudes of forces applied on a surface includes a grid comprised of energy input devices running in one direction and energy output devices running another direction with the input and output devices crossing each other. Transducers that meter energy from the input devices to the output devices as a function of the magnitude of forces applied thereon are positioned at the intersections of the input devices with the output devices. Interrogation apparatus is also included, along with energy output detectors and measuring devices, for sensing and determining locations, as well as magnitudes, of forces applied on the grid. Several embodiments of energy input and energy output devices are shown and described, as well as several embodiments of transducers.

US Patent:

51227967, Jun 16, 1992

Filed:

Sep 20, 1991

Appl. No.:

7/763471

Inventors:

George Beggs - Boulder CO
Richard Speck - Denver CO

Assignee:

Auto-Sense, Limited - Aurora CO

International Classification:

G08G 116

US Classification:

340904

Abstract:

Apparatus for detecting the presence of an object within an area under surveillance employs an electro-optical emitter for directing light into the area and an electro-optical receiver for sensing light reflected from the object which originates from the emitter. The emitter emits light energy of a preselected wavelength and is modulated at a preselected frequency to provide the emanating light energy with a characteristic signature. Light reflected by an object within the area under surveillance is filtered and converted to an electrical signal which varies in accordance with the magnitude of the filtered light having the preselected wavelength and modulation frequency. A selected portion of the electrical signal is amplified by a band-pass amplifier and is synchronously sampled in accordance with the modulation frequency to determine the magnitude of the filtered light which originated from the emitter. The sampled signal is compared with a threshold value to determine whether an object is present within the area under surveillance. The emitter and receiver are covered by a transparent shield to protect them against foreign matter.