Patents by Inventor Vanacan Tatavoosian
Vanacan Tatavoosian has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170311403Abstract: System for adaptive non-linear light dimming of electro-optical devices comprises main transistor, resistance element coupled to drain of main transistor, light-emitting bank including at least one light-emitting device, and luminance adjustment circuitry coupled to source of main transistor. Luminance adjustment circuitry causes input voltage to the system to have a non-linear relationship with current through light-emitting bank. Luminance adjustment circuitry includes slope-point components coupled in parallel. When a first predetermined voltage level is supplied to the system, the first slope-point component allows a first predetermined amount of current to flow to the light-emitting bank, and when a second predetermined voltage level is supplied to the system, the first slope component allows the first predetermined amount of current to flow to the light-emitting bank and the second slope-point component allows a second predetermined amount of current flow to the light-emitting bank.Type: ApplicationFiled: October 30, 2015Publication date: October 26, 2017Inventors: Vanacan Tatavoosian, Jianming Yuan, Brian Pham
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Patent number: 8786642Abstract: The system includes a digital system architecture including digital chromaticity control. Such control may include color balance, luminance, and color compensation and/or harmonization of multiple integrated modules of display or illuminated panels. Embodiments include a system topology with an integrated modular design for multiple display or illuminated control panels, which can reduce the system weight, wiring complexity, and development expense. In embodiments, a digital chromaticity control includes in-module and cross-module control for balance and harmonization of multiple panels and modules, incorporating integrated digital signal processors and digital communications for internal and external networking.Type: GrantFiled: November 24, 2010Date of Patent: July 22, 2014Assignee: Eaton CorporationInventors: Jie Jay Chang, Vanacan Tatavoosian
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Publication number: 20130049608Abstract: A system for adaptively controlling and adjusting the output and balance of multiple integrated illuminated panels may include a plurality of illumination sources in operative connection with a plurality of integrated illuminated panels, the plurality of illumination sources being disposed within a vehicle cockpit. The system may also include a dimming control configured to provide manual adjustment of brightness of the plurality of illumination sources, and a digital controller configured to automatically harmonize chromaticity and brightness of the plurality of illumination sources based on detected ambient lighting conditions.Type: ApplicationFiled: November 24, 2010Publication date: February 28, 2013Applicant: Eaton CorporationInventors: Vanacan Tatavoosian, Jie Jay Chang
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Publication number: 20120223974Abstract: The system includes a digital system architecture including digital chromaticity control. Such control may include color balance, luminance, and color compensation and/or harmonization of multiple integrated modules of display or illuminated panels. Embodiments include a system topology with an integrated modular design for multiple display or illuminated control panels, which can reduce the system weight, wiring complexity, and development expense. In embodiments, a digital chromaticity control includes in-module and cross-module control for balance and harmonization of multiple panels and modules, incorporating integrated digital signal processors and digital communications for internal and external networking.Type: ApplicationFiled: November 24, 2010Publication date: September 6, 2012Applicant: Eaton CorporationInventors: Jie Jay Chang, Vanacan Tatavoosian
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Patent number: 5838533Abstract: A housing assembly for electrical components includes a plurality of tubular housing sections which are fixedly interconnected. Portions of the housing sections are then removed to form openings in the housing assembly. The openings formed in the housing assembly may be formed in either interior or exterior walls of the housing assembly. Each of the tubular housing sections forms a compartment in which an electrical component may be mounted. By removing portions of a plurality of the interior walls of the housing assembly, a chamber which extends across end portions of a plurality of the compartments is formed. Front and rear end plates may be connected with the housing assembly. In addition, covers may be provided for openings formed in the exterior of the housing assembly.Type: GrantFiled: March 19, 1997Date of Patent: November 17, 1998Assignee: Eaton CorporationInventors: Berdj N. Yazaryan, Vanacan Tatavoosian
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Patent number: 5659297Abstract: A pushbutton of a switch assembly has an improved display system which includes a housing formed of an electrically insulating polymeric material. A solid-state display system is disposed within the housing. The solid-state display system includes an array of light emitting diodes mounted on a circuit board. The circuit board is disposed on a metal heat sink. The heat sink positions the circuit board relative to the display housing and receives heat from the light emitting diodes. In addition, the heat sink forms a portion of a circuit which conducts electrical energy to energize the light emitting diodes.Type: GrantFiled: March 27, 1995Date of Patent: August 19, 1997Assignee: Eaton CorporationInventor: Vanacan Tatavoosian
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Patent number: 5544019Abstract: An improved display system includes a selectively energizeable light source which is disposed within a housing. A panel, formed of transparent material, is connected with the housing and has an outer side surface which is exposed to ambient light and an inner side surface which is exposed to light from the light source when the light source is energized. Indicia is disposed between the light source and the panel. The indicia is observable through the panel when the light source is energized and is obscured when the light source is de-energized. An array of pyramidal projections are disposed on the outer side of the panel. The array of pyramidal projections extend across the indicia so that light from the light source passes through the pyramidal projections to enable the indicia to be observed when the light source is energized. The panel is formed of a polymer. The surfaces of the pyramidal projections are repaired by a thin film of a monomer of the same composition as the polymer forming the panel.Type: GrantFiled: February 21, 1995Date of Patent: August 6, 1996Assignee: Eaton CorporationInventors: Vanacan Tatavoosian, Robert P. Helstern, John J. Lombardo
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Patent number: 4967329Abstract: An annunciator panel for aircraft has a plurality of pockets defining individual illuminated indicator devices. A lens assembly comprising a plastic lens and glass filters bonded together is encompassed by an elastically stretched rubber sleeve having an integral flange compressed between the lens body and panel housing, providing a light, fluid and particulate seal between lens and housing as well as a vibration and shock buffer to the lens and filters. The resiliency of the rubber sleeve accommodates different thermal expansion between dissimilar materials without imparting damage stresses to the lens assembly.Type: GrantFiled: March 22, 1990Date of Patent: October 30, 1990Assignee: Eaton CorporationInventors: Vanacan Tatavoosian, George E. Schaeffer
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Patent number: 4967328Abstract: A rubber ring disposed snugly over the glass envelope of a lamp and slid against a larger cylindrical lamp body centers and spaces the lamp within a reflector hole by positioning the ring within a counterbore recess in a back surface of the reflector concentric with the hole. The height of the ring is greater than the depth of the counterbore recess to space the lamp body away from the back surface of the reflector. A rubber strip is disposed between the opposite end of the lamp body and a housing member, the strip and ring being compressed in assembly to resiliently support the lamp, absorbing vibration and shock forces imparted to the lamp through the housing.Type: GrantFiled: March 22, 1990Date of Patent: October 30, 1990Assignee: Eaton CorporationInventor: Vanacan Tatavoosian