18 research outputs found

    Device and method for determining a cap arrangement indicating color discrimination

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    A detector located on a positioning tray has a plurality of colored caps placed by a subject being tested. Each cap has a unique resonant circuit which is selectively energized to indicate cap position to the detector so that color discrimination of the subject may be determined. For the most up-to-date information about these patents, including the availability of Certificates of Correction, be sure to check the United States Patent and Trademark Office\u27s free, publicly accessible database: Patent Public Search https://ppubs.uspto.gov/pubwebapp/static/pages/landing.htmlhttps://irl.umsl.edu/patents/1011/thumbnail.jp

    Light sensitivity meter and uses thereof

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    A text apparatus for measuring the degree of light-sensitivity of a subject, such as a subject with cataracts or migraines. The apparatus comprises a viewing shroud for positioning at least one eye of the subject in a testing position and an illumination source adapted for emitting visible light toward the at least one eye of the subject. The apparatus includes a visual monitor adapted for monitoring the fixation of the at least one eye during testing. A method of the invention exposes at least one eye of a subject to light and either subjects the eye to a continuous, level light intensity or increases the intensity of the light continuously over time. The intensity of the light when the subject experiences discomfort can be recorded. Pulse width modulation can modulate the intensity of the illumination source (e.g., an LED) over time. For the most up-to-date information about these patents, including the availability of Certificates of Correction, be sure to check the United States Patent and Trademark Office\u27s free, publicly accessible database: Patent Public Search https://ppubs.uspto.gov/pubwebapp/static/pages/landing.htmlhttps://irl.umsl.edu/patents/1020/thumbnail.jp

    Log complex color for visual pattern recognition of total sound

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    The present disclosure is generally directed to audio visualization methods for visual pattern recognition of sound. In particular, the present disclosure is directed to plotting amplitude intensity as brightness/saturation and phase-cycles as hue-variations to create visual representations of sound. For the most up-to-date information about these patents, including the availability of Certificates of Correction, be sure to check the United States Patent and Trademark Office\u27s free, publicly accessible database: Patent Public Search https://ppubs.uspto.gov/pubwebapp/static/pages/landing.htmlhttps://irl.umsl.edu/patents/1022/thumbnail.jp

    Ultrasensitive spectrophotometer

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    The invention concerns improvements in spectrophotometry. Aspects of the invention may be used independently or together to increase the sensitivity of spectrophotometry. One aspect of the invention is a spectrophotometer detection circuit. In this aspect of the invention, currents attributable to reference and sample beams are cancelled in the current mode. The detection circuit produces a first voltage proportional to the difference in currents and a second voltage proportional to one of the reference or sample beams. Both voltages are available to allow simultaneous measurement and analysis. Another aspect of the invention concerns thermal stability. According to the invention, thermal conductivity is established among the housing and optical system components to promote equilibrium. Another preferred embodiment has a unitary solid metal housing with a hollowed portion defined to mount and place optical system components. Recognition and identification of important noise sources in spectrophotometers forms an aspect of the invention contributing to the features and combinations of features in preferred embodiments. Many noise sources would not normally be considered in conventional spectrophotometry because the magnitude of particular noise sources dominates device performance. For the most up-to-date information about these patents, including the availability of Certificates of Correction, be sure to check the United States Patent and Trademark Office\u27s free, publicly accessible database: Patent Public Search https://ppubs.uspto.gov/pubwebapp/static/pages/landing.htmlhttps://irl.umsl.edu/patents/1036/thumbnail.jp

    Q3D: a device to quantitatively measure visual suppression

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    Vision disorders are the 4th most prevalent class of disability in the United States and the most prevalent handicapping condition in childhood. Early detection of visual suppression increases the likelihood of effective treatment and decreases the negative impact of conditions such as amblyopia, which affects 2-3% of children and is the most common cause of monocular visual impairments in young and middle-aged adults. Researchers at the University of Missouri-St. Louis have developed the Q3D (Quantitative Three Dot) Test, a handheld device that quantitatively measures the amount of visual suppression in a patient. Able to detect very small impairments and changes in suppression, the Q3D can catch suppression earlier than current methods. Quantified measurement allows for tracking intervention progress over time. Potential Areas of Applications: * Measuring the depth of suppression in conditions such as amblyopia * Quantifying an afferent pupillary defect from optic nerve abnormalities * Measuring the progress and outcome of treatments * Screening for binocular function Patent Status: * U.S. Patent No. 7,686,452 (issued 3/30/2010) * National stage applications filed in AU, CA, EPC, JP Inventor(s): Carl Bassi, Michael Howe, Wayne Garver Contact Info: Tamara Wilgers [email protected] 314-516-688

    Apparatus and method for assessing visual suppression

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    A device is used to determine the presence of and the amount (depth) of visual suppression in a subject. The device includes a first light source emitting a first light and a second light source emitting a second light. Intensities of the light sources are independently controllable. A first filter disposed over one eye of the subject allows transmission of the first light and prevents transmission of the second light. A second filter disposed over the other eye of the subject allows transmission of the second light and prevents transmission of the first light. In a method of using the device, the intensity of at least one of the first and second lights is independently controlled, wherein the difference in intensities of the first and second lights at which the lights appear to be at equal brightness to the subject determines the amount of visual suppression in the subject. For the most up-to-date information about these patents, including the availability of Certificates of Correction, be sure to check the United States Patent and Trademark Office\u27s free, publicly accessible database: Patent Public Search https://ppubs.uspto.gov/pubwebapp/static/pages/landing.htmlhttps://irl.umsl.edu/patents/1002/thumbnail.jp

    Jimmy Swaggart's Secular Confession

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    This is the author's accepted manuscript. The published version is available from http://dx.doi.org/10.1080/02773940902766748 .Following the exposure of televangelist Jimmy Swaggart’s illicit rendezvous with a New Orleans prostitute, the Assemblies of God simultaneously orchestrated a massive attempt to silence those who would discuss the tryst and arranged the most widely publicized confession in American history theretofore. The coincidence of a “silence campaign” with the vast distribution of a public confession invites us to reconsider the nature of the public confession. For what place has a public confession, the discourse of disclosure par excellence, in a silence campaign? This question is best answered, I argue, if we understand public confession not as a stable a-historical form, but as a practice that is informed by multiple, competing traditions. I argue that by situating Swaggart’s performance in a philosophically modern and secular tradition of public confession we can understand both its complicity in a silence campaign and, more generally, the political logic of the modern public confession

    When Do Two Waves Create a Heterodyne Wave?

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    An automatic cap arrangement scoring device [abstract]

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    Poor color vision can be inherited (an estimated 8% of men and .5% of women have a congenital color vision defect) or acquired as the result of disease, certain medications, trauma, aging, or exposure to particular chemicals and other environmental factors. Cap arrangement tests (e.g. Farnsworth-Munsell 100 Hue, Farnsworth D-15, L'Anthony D-15 Desaturated, etc.) are among the most valid and reliable color vision tests to quantify color deficits currently available. However, these tests, particularly the FM 100, are time consuming to score and are highly susceptible to transcription errors. Researchers at the University of Missouri-St. Louis have developed the Automatic Cap Arrangement Scoring Device (ACASD) to significantly reduce testing time and improve measurement reliability of cap arrangement tests by electronically automating scoring and data entry. Once the patient places the caps in the test tray, the rest will be automatic -- scoring, data entry and printing of results. Upgrading existing cap arrangement devices is easy by transferring existing test papers to the new cap. Potential Areas of Applications: * Standard cap arrangement color vision tests given not only by optometrists and ophthalmologists as part of a visual examination, but employers filling positions with color vision requirements * Other applications where specific sequences of small items are necessary PATENT STATUS: U.S. Patent Application No. 12/522,691 INVENTOR(S): Carl Bassi; Michael Howe; Wayne Garver CONTACT INFO: Tamara Wilgers; [email protected]; 314-516-688
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