A signal processing circuit and method for increasing speech intelligibility. The invention comprises a receiving circuit for receiving an audio signal detectable by a human. A gain amplifying circuit provides gain amplification of the audio signal. A shaping filter modifies the audio signal to be in phase with a second audio signal present at the receiving circuit and which is detected by the human unprocessed by the signal processing circuit. The shaping filter further differentially amplifies first and second speech formant frequencies to restore a normal loudness relationship between them. A feedback circuit controls the gain amplification in the gain amplifying circuit for enabling the signal processing circuit to substantially prevent regenerative oscillation of the amplified audio signal. Additionally, a signal tone may be injected into the signal processing circuit for automatically controlling the gain amplifying circuit.
Signal Processing Circuit And Method For Increasing Speech Intelligibility
A signal processing circuit and method for increasing speech intelligibility. The invention comprises a receiving circuit for receiving an audio signal detectable by a human. A gain amplifying circuit provides gain amplification of the audio signal. A shaping filter modifies the audio signal to be in phase with a second audio signal present at the receiving circuit and which is detected by the human unprocessed by the signal processing circuit. The shaping filter further differentially amplifies first and second speech formant frequencies to restore a normal loudness relationship between them. A feedback circuit controls the gain amplification in the gain amplifying circuit for enabling the signal processing circuit to substantially prevent regenerative oscillation of the amplified audio signal. Additionally, a signal tone may be injected into the signal processing circuit for automatically controlling the gain amplifying circuit.
Method, System And Device For Detecting Ocular Dysfunctions
Gillray L. Kandel - Troy NY, US David B. Henson - Stockport, GB Martin B. Kaback - Slingerlands NY, US Ralph M. Sanchez - Voorheesville NY, US
Assignee:
Ontest Corporation - Troy NY
International Classification:
A61B 3/10
US Classification:
351221, 351246
Abstract:
A method, system and device for detecting an ocular dysfunction with optic neuropathy, such as the glaucoma group of diseases. More particularly, one eye is exposed to a series of flashes, and the resulting pupillary reflexes of both eyes are measured. The pupillary reflexes can then be evaluated to determine if the ocular dysfunction is present. A device that includes at least one light source can be incorporated into a system for recording and evaluating the pupillary reflexes.
Gillray L. Kandel - Troy NY, US Martin B. Kaback - Slingerlands NY, US Ralph M. Sanchez - Voorheesville NY, US
Assignee:
Ontest Corporation - Troy NY
International Classification:
A61B 3/10
US Classification:
351221, 351246
Abstract:
A method, system and device for detecting an ocular dysfunction with optic neuropathy, such as the glaucoma group of diseases. More particularly, one eye is exposed to a series of flashes, and the resulting pupillary reflexes of both eyes are measured. The pupillary reflexes can then be evaluated to determine if the ocular dysfunction is present. A device that includes at least one light source can be incorporated into a system for recording and evaluating the pupillary reflexes.
Gillray L. Kandel - Troy NY, US Aaron S. Cohen - Troy NY, US
Assignee:
Konan Medical USA, Inc. - Irvine CA
International Classification:
A61B 3/10
US Classification:
351221, 351205, 351246
Abstract:
Solutions for evaluating the pupillary responses of a patient are disclosed. An illustrative method includes alternately exposing a first eye and a second eye of the patient to light stimulation in successive intervals, the light stimulation provided by at least one light source controlled by at least one computing device; concurrently capturing, with at least one image device controlled by the at least one computing device, image data of the first eye and the second eye during the exposing; and using the at least one computing device to perform the following: determine a center point of the first eye within the image data of the first eye and a center point of the second eye within the image data of the second eye; obtain image data of a first half of the first eye having an edge defined by a line of pixels intersecting the determined center point of the first eye; obtain image data of a second half of the second eye, the second half of the second eye opposing the first half of the first eye and having an edge defined by a line of pixels intersecting the determined center point of the second eye; create a composite image including the image data of the first half of the first eye and the image data of the second half of the second eye; and provide the composite image for evaluation.
Gillray L. Kandel - Troy NY, US Martin B. Kaback - Slingerlands NY, US
Assignee:
Konan Medical USA, Inc. - Irvine CA
International Classification:
A61B 3/10
US Classification:
351221, 351246
Abstract:
A method, system and device for recording image data for a pair of eyes exposes to a series of flashes that includes flashes that vary chromatically is provided. More particularly, one eye is exposed to the series of flashes, and the resulting pupillary reflexes of both eyes are concurrently recorded.
Signal Processing Circuit And Method For Increasing Speech Intelligibility
Gillray Kandel - Troy NY, US Lee Ostrander - Fort Edward NY, US
International Classification:
G10L019/14
US Classification:
704/205000
Abstract:
In a signal processing circuit and method for increasing speech intelligibility, a receiving circuit may receive an audio signal detectable by a human. A gain amplifying circuit provides gain amplification of the audio signal. A shaping filter modifies the audio signal to be in phase with a second audio signal present at the receiving circuit and which is detected by the human unprocessed by the signal processing circuit. The shaping filter further differentially amplifies first and second speech formant frequencies to restore a normal loudness relationship between them. A feedback circuit controls the gain amplification in the gain amplifying circuit for enabling the signal processing circuit to substantially prevent regenerative oscillation of the amplified audio signal. Additionally, a signal tone may be injected into the signal processing circuit for automatically controlling the gain amplifying circuit.
Composition And Method For Reducing Structural Defects
John Schroeder - Schenectady NY Gillray L. Kandel - Troy NY
Assignee:
Rensselaer Polytechnic Institute - Troy NY
International Classification:
A61K 3343 A61K 3314
US Classification:
424602
Abstract:
The invention provides a composition and method for reducing structural defects in metastable systems. Structural defects represent spaces or vacancies in the structural order of the metastable system, which can be restored to the predefect order through the use of structure makers. These structure makers will then occupy the space or vacancy of the defect, restoring the order of the system. Lithium ions are used as a preferred structure maker to reduce the structural defects that lead to cataract in a human lens.