PETER DERR
Engineering in East Windsor, NJ

2003003, Feb 13, 2003

Aug 7, 2001

09/924265

George Hu - Raritan NJ, US
Vance Zemon - West Nyack NY, US
Peter Derr - East Windsor NJ, US

DIOPSYS, INC.

A61B013/00

600/558000

A system and method for performing a vision examination includes displaying a series of visual stimuli for observation by a patient and detecting the patient's visual evoked potentials in response to the visual stimuli. Electrical signals representative of the visual evoked potentials for each stimulus of each series of visual stimuli displayed is amplified, converted to digitized data, recorded and measured. The measured visual evoked potential data is then evaluated and compared to certain predetermined values in order to detect whether or not the measured data is reliable. Data outside of predetermined ranges of values is considered faulty data. For example, the measured data is compared to a maximum value of the output of an amplifier used to enhance the electrical signals, to a predetermined value of the Fourier component at 60 Hz; and to certain ranges to determine if the measured data are outside of expected limits. The occurrence of such data outside these ranges is faulty data. Upon detecting faulty data, new data can be generated until fault free data is obtained or the examination is terminated.

2006028, Dec 14, 2006

Aug 21, 2006

11/506931

George Hu - Raritan NJ, US
Vance Zemon - West Nyack NY, US
Peter Derr - East Windsor NJ, US

DIOPSYS, INC. - Metuchen NJ

A61B 13/00, A61B 5/04

600558000, 600544000, 600545000

A system and method for performing a vision examination includes displaying a series of visual stimuli for observation by a patient and detecting the patient's visual evoked potentials in response to the visual stimuli. Electrical signals representative of the visual evoked potentials for each stimulus of each series of visual stimuli displayed is amplified, converted to digitized data, recorded and measured. The measured visual evoked potential data is then evaluated and compared to certain predetermined values in order to detect whether or not the measured data is reliable. Data outside of predetermined ranges of values is considered faulty data. For example, the measured data is compared to a maximum value of the output of an amplifier used to enhance the electrical signals, to a predetermined value of the Fourier component at 60 Hz; and to certain ranges to determine if the measured data are outside of expected limits. The occurrence of such data outside these ranges is faulty data. Upon detecting faulty data, new data can be generated until fault free data is obtained or the examination is terminated.

8083354, Dec 27, 2011

Oct 3, 2007

11/905698

Peter H. Derr - East Windsor NJ, US

Diopsys, Inc. - Pine Brook NJ

A61B 3/02, A61B 3/00

351246, 351239

A method for determining a likelihood of a visual deficit in a subject uses a simultaneously multi-temporal visual test. At least two visual patterns are simultaneously displayed to the subject. Each pattern reverses in contrast or color at a different display frequency, and each pattern is displayed to a different region of the subject's visual field. Electrical activity of the brain of the subject is captured and sampled, and one or more frequency components are resolved from the resulting signal, where each frequency component corresponds to a different display frequency. The method then involves determining from the frequency components, optionally by comparison between the eyes, a measurement of a likelihood that a visual deficit exists in a particular area.

2012002, Jan 26, 2012

Jul 21, 2011

13/188193

Peter Derr - East Windsor NJ, US
Alberto Gonzalez - Pine Brook NJ, US
Laurie Cox - Rockaway NJ, US

G06K 9/00

382131

A method of analyzing an OCT image. An OCT image has many differently colored dots. The system detects the number of differently colored dots, quantifies them and performs statistical analyses to determine a likelihood of disease. The different colored dots correspond to different retina cell types and structures.

8100533, Jan 24, 2012

May 5, 2009

12/435678

Peter H. Derr - East Windsor NJ, US
Matt Emmer - Roslyn NY, US

Diopsys, Inc. - Pine Brook NJ

A61B 3/02, A61B 3/00

351239, 351200, 351222, 351246

A pattern VEP system for screening for glaucoma and other optic nerve related diseases/deficiencies. The system combines high contrast and low contrast testing. The low contrast testing allows for highly sensitive glaucoma testing and the high contrast allows for a sensitive test of the central vision. The system also includes a narrowly tailored method of rejecting corrupted data allowing the system to selectively salvage useful portions of a signal. The system also provides a method of data modeling to locate the N75-P100-N135 complex in a waveform and determine if it falls within the normal range.