David B Plass

US Patent:

60699353, May 30, 2000

Filed:

Nov 2, 1998

Appl. No.:

9/184040

Inventors:

David B. Schick - Flushing NY
Daniel A. Neugroschl - New York NY
David B. Plass - Merrick NY
Jonathan Singer - Dobbs Ferry NY

Assignee:

Schick Technologies, Inc. - Long Island City NY

International Classification:

H05G 164

US Classification:

378 988

Abstract:

An x-ray detector includes a scintillator that converts an invisible-radiant-energy image into a visible-light image and a sensor array that converts the visible-light image into an electrical signal. The sensor array comprises a plurality of CMOS active pixel sensors.

US Patent:

58347828, Nov 10, 1998

Filed:

Nov 20, 1996

Appl. No.:

8/754095

Inventors:

David B. Schick - Flushing NY
Daniel A. Neugroschl - New York NY
David B. Plass - Merrick NY
Jonathan Singer - Dobbs Ferry NY

Assignee:

Schick Technologies, Inc. - Long Island City NY

International Classification:

G01T 120
G01T 124

US Classification:

25037011

Abstract:

A large area image detecting apparatus made by arranging a plurality of small area sensors in a stepped arrangement so that the inactive regions of the small sensors are covered by a active area of another small sensor. The apparatus may be used to detect light or radiation. A fiber optic assembly may be used to guide light from a flat scintillator plate onto the small sensors.

US Patent:

59955830, Nov 30, 1999

Filed:

Nov 13, 1996

Appl. No.:

8/748954

Inventors:

David B. Schick - Flushing NY
Daniel A. Neugroschl - New York NY
David B. Plass - Merrick NY
Jonathan Singer - Dobbs Ferry NY

Assignee:

Schick Technologies, Inc. - Long Island City NY

International Classification:

A61B 614

US Classification:

378 38

Abstract:

A method and apparatus for producing a X-ray image of a patient's teeth by placing an intra-oral sensor having a plurality of pixels disposed in a linear array inside the patient's mouth, and moving a radiation source around outside of the patient's mouth. The intra-oral sensor detects the radiation that has passed through the patient's teeth and generates corresponding output signals that depend on the amount of radiation arriving at each pixel. The information contained in the output signals is stored and can be used to create an X-ray image of the patient's teeth. The intra-oral sensor can be moved about inside the patient's mouth in coordination with the movement of the radiation source in order to improve the resulting image quality. This method and apparatus can be used to obtain an X-ray image of any number of teeth, including a panoramic image of all of the patient's teeth, in a single, quick, uninterrupted operation.

US Patent:

59129425, Jun 15, 1999

Filed:

Jun 6, 1997

Appl. No.:

8/870381

Inventors:

David B. Schick - Flushing NY
Daniel A. Neugroschl - New York NY
David B. Plass - Merrick NY
Jonathan Singer - Dobbs Ferry NY

Assignee:

Schick Technologies, Inc. - Long Island City NY

International Classification:

H05G 164

US Classification:

378 988

Abstract:

An x-ray detector includes a scintillator that converts an invisible-radiant-energy image into a visible-light image and a sensor array that converts the visible-light image into an electrical signal. The sensor array comprises a plurality of CMOS active pixel sensors.

US Patent:

58526471, Dec 22, 1998

Filed:

Sep 24, 1997

Appl. No.:

8/936571

Inventors:

David B. Schick - Flushing NY
David B. Plass - Merrick NY
Jonathan Singer - Dobbs Ferry NY

Assignee:

Schick Technologies - Long Island City NY

International Classification:

G01N 2306

US Classification:

378 53

Abstract:

A method and apparatus for measuring bone density is disclosed. The method and apparatus use high-energy and low-energy images of hard-tissue and soft-tissue references to determine characteristics of hard and soft tissue under high-energy and low-energy radiation. Then, high-energy and low-energy x-ray images of the subject are processed to compute the density of the bone inside the subject.

US Patent:

58987533, Apr 27, 1999

Filed:

Jun 6, 1997

Appl. No.:

8/870376

Inventors:

David B. Schick - Flushing NY
Daniel A. Neugroschl - New York NY
David B. Plass - Merrick NY
Jonathan Singer - Dobbs Ferry NY

Assignee:

Schick Technologies, Inc. - Long Island City NY

International Classification:

G01T 124

US Classification:

378 54

Abstract:

AA method and apparatus for measuring bone density using x-ray radiation at two energy levels, and an image sensor array that comprises a plurality of CMOS active pixel sensors.