Patents by Inventor Timothy E. Hammon
Timothy E. Hammon 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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Patent number: 11764875Abstract: Techniques for managing gain equalization error in optical communication systems are provided. For example, a multi-stage gain correction filter may be configured to at least correct gain equalization error produced by filters with insufficient resolution, for example, conventional non-reflective gain correction technology used in the optical communication systems. The multi-stage filter may include at least a broadband gain correction filter to correct gain equalization error in most of the transmission bandwidth and a narrow band gain correction filter to correction error in a narrow region of the bandwidth. One or more of the multi-stage filters may be implemented in the repeaters of the system (which may be referred to as hybrid GFFs) or may be included in a standalone body (which may be referred to as hybrid GEFs).Type: GrantFiled: November 6, 2020Date of Patent: September 19, 2023Assignee: SUBCOM, LLCInventors: Dmitri G. Foursa, Timothy E. Hammon
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Publication number: 20220149944Abstract: Techniques for managing gain equalization error in optical communication systems are provided. For example, a multi-stage gain correction filter may be configured to at least correct gain equalization error produced by filters with insufficient resolution, for example, conventional non-reflective gain correction technology used in the optical communication systems. The multi-stage filter may include at least a broadband gain correction filter to correct gain equalization error in most of the transmission bandwidth and a narrow band gain correction filter to correction error in a narrow region of the bandwidth. One or more of the multi-stage filters may be implemented in the repeaters of the system (which may be referred to as hybrid GFFs) or may be included in a standalone body (which may be referred to as hybrid GEFs).Type: ApplicationFiled: November 6, 2020Publication date: May 12, 2022Applicant: SUBCOM, LLCInventors: Dmitri G. Foursa, Timothy E. Hammon
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Patent number: 6702897Abstract: Apparatuses, systems, and methods are disclosed for providing optical communications. Bragg grating used in the optical components and systems of the present invention are produced by selectively hydrogenating one or more selected sections of an optical waveguide in general, and particularly optical fiber. Selective hydrogenation can be performed by selectively establishing local conditions in a first environment conducive to introducing greater quantities of hydrogen into selected sections than into non-selected sections, which are maintained in a second environment. The extent of selective hydrogenation and the hydrogen concentration difference between selected and non-selected section of the waveguide is a function of the temperature, pressure, and time of exposure established in the first and second environments.Type: GrantFiled: October 9, 2001Date of Patent: March 9, 2004Assignee: Acme Grating Ventures, LLCInventors: Thomas J. Cullen, Timothy E. Hammon, John M. Stockhausen
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Publication number: 20020018623Abstract: Apparatuses, systems, and methods are disclosed for providing optical communications. Bragg grating used in the optical components and systems of the present invention are produced by selectively hydrogenating one or more selected sections of an optical waveguide in general, and particularly optical fiber. Selective hydrogenation can be performed by selectively establishing local conditions in a first environment conducive to introducing greater quantities of hydrogen into selected sections than into non-selected sections, which are maintained in a second environment. The extent of selective hydrogenation and the hydrogen concentration difference between selected and non-selected section of the waveguide is a function of the temperature, pressure, and time of exposure established in the first and second environments.Type: ApplicationFiled: October 9, 2001Publication date: February 14, 2002Applicant: ACME Grating Ventures, LLC Intellectual Property DepartmentInventors: Thomas J. Cullen, Timothy E. Hammon, John M. Stockhausen
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Patent number: 6327406Abstract: Apparatuses, systems, and methods are disclosed for providing optical communications. Bragg grating used in the optical components and systems of the present invention are produced by selectively hydrogenating one or more selected sections of an optical waveguide in general, and particularly optical fiber. Selective hydrogenation can be performed by selectively establishing local conditions in a first environment conducive to introducing greater quantities of hydrogen into selected sections than into non-selected sections, which are maintained in a second environment. The extent of selective hydrogenation and the hydrogen concentration difference between selected and non-selected section of the waveguide is a function of the temperature, pressure, and time of exposure established in the first and second environments.Type: GrantFiled: April 7, 2000Date of Patent: December 4, 2001Assignee: ACME Grating Ventures, LLCInventors: Thomas J. Cullen, Timothy E. Hammon, John M. Stockhausen
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Patent number: 6238729Abstract: Apparatuses, systems, and methods are disclosed for providing optical communications. Bragg grating used in the optical components and systems of the present invention are produced by selectively hydrogenating one or more selected sections of an optical waveguide in general, and particularly optical fiber. Selective hydrogenation can be performed by selectively establishing local conditions in a first environment conducive to introducing greater quantities of hydrogen into selected sections than into non-selected sections, which are maintained in a second environment. The extent of selective hydrogenation and the hydrogen concentration difference between selected and non-selected section of the waveguide is a function of the temperature, pressure, and time of exposure established in the first and second environments.Type: GrantFiled: April 7, 2000Date of Patent: May 29, 2001Assignee: Acme Grating Ventures, LLCInventors: Thomas J. Cullen, Timothy E. Hammon, John M. Stockhausen
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Patent number: 6238485Abstract: Apparatuses, systems, and methods are disclosed for providing optical communications. Bragg grating used in the optical components and systems of the present invention are produced by selectively hydrogenating one or more selected sections of an optical waveguide in general, and particularly optical fiber. Selective hydrogenation can be performed by selectively establishing local conditions in a first environment conducive to introducing greater quantities of hydrogen into selected sections than into non-selected sections, which are maintained in a second environment. The extent of selective hydrogenation and the hydrogen concentration difference between selected and non-selected section of the waveguide is a function of the temperature, pressure, and time of exposure established in the first and second environments.Type: GrantFiled: April 7, 2000Date of Patent: May 29, 2001Assignee: Acme Grating Ventures, LLCInventors: Thomas J. Cullen, Timothy E. Hammon, John M. Stockhausen
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Patent number: 6146713Abstract: Apparatuses, systems, and methods are disclosed for providing optical communications. Bragg grating used in the optical components and systems of the present invention are produced by selectively hydrogenating one or more selected sections of an optical waveguide in general, and particularly optical fiber. Selective hydrogenation can be performed by selectively establishing local conditions in a first environment conducive to introducing greater quantities of hydrogen into selected sections than into non-selected sections, which are maintained in a second environment. The extent of selective hydrogenation and the hydrogen concentration difference between selected and non-selected section of the waveguide is a function of the temperature, pressure, and time of exposure established in the first and second environments.Type: GrantFiled: March 25, 1999Date of Patent: November 14, 2000Assignee: Acme Grating Ventures, LLCInventors: Thomas J. Cullen, Timothy E. Hammon, John M. Stockhausen
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Patent number: 5791407Abstract: A remote and programmable indash defrost/cooling system includes a processing unit coupled to the vehicle's ignition system, heating system, and cooling system. A memory coupled to the processing unit stores a computer readable program which is designed to direct operation of the vehicle's ignition, heating, and cooling systems to allow preprogrammed warming or cooling of the vehicle. The processing unit may also cause the windows of the vehicle to be defrosted and cleaned by starting front and rear defrost systems and then activating the front and/or rear windshield wipers to clear the defrosted ice from the windows.Type: GrantFiled: June 11, 1996Date of Patent: August 11, 1998Assignee: Rapids Defrost System, Inc.Inventor: Timothy E. Hammons
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Patent number: 5183646Abstract: A device for oxidizing gaseous materials, comprising a combustion chamber, wherein the device and the combustion chamber both have a top and a bottom, the device further having a gas outlet and being adapted to operate in conjunction with means applying negative pressure to the outlet, means for introducing process gas and a source of fuel into the top of the combustion chamber, means for effecting heat exchange between oxygen-containing gas and the combustion chamber to preheat the oxygen-containing gas, means for introducing the preheated gas into the top of the combustion chamber, means for mixing the preheated gas with the process gas and fuel so that the mixture can burn in the combustion chamber to form an exhaust gas, means for permitting the gas to exit from the bottom of the combustion chamber, means for diluting the exhaust with air to form a flue gas, and means for directing the flue gas from the bottom of the combustion chamber out of the outlet of the device.Type: GrantFiled: February 28, 1991Date of Patent: February 2, 1993Assignee: Custom Engineered Materials, Inc.Inventors: Lawrence B. Anderson, Timothy E. Hammon, Cliff Frieler
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Patent number: 5126117Abstract: A system for containing and detoxifying a gaseous stream, comprising a storage housing containing one or more sources of toxic gas, means for applying negative pressure to the storage housing to continuously exhaust a gaseous stream therefrom, and a treatment housing interposed in the gaseous stream, the treatment housing containing one or more layers of solid sorbent material capable of removing the toxic gas from the stream, wherein a flow of treated gas that exits the treatment unit may be safely released to the environment.Type: GrantFiled: May 22, 1990Date of Patent: June 30, 1992Assignee: Custom Engineered Materials, Inc.Inventors: John C. Schumacher, Lawrence B. Anderson, Timothy E. Hammon