Patents by Inventor Edward W. Morton
Edward W. Morton 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: 20020022192Abstract: A method of manufacturing an optical disc master from a glass substrate includes coating the substrate with a layer of photoresist, and applying an alkali-gel layer atop the photoresist. The coated substrate is then placed in an environment with a higher than normal humidity. The surface of the coated glass is selectively exposed to a beam of a writing laser, the exposure being controlled by digital information to be recorded on the disc. Exposed portions of the coated substrate experience a chemical reaction between the photoresist and the alkali material in the humid environment. Exposed portions are then developed and ablated thereby creating the pits and lands.Type: ApplicationFiled: April 6, 2001Publication date: February 21, 2002Inventor: Edward W. Morton
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Patent number: 6348294Abstract: A method of manufacturing an optical disc master from a glass substrate includes coating the substrate with a layer of photoresist, and applying an alkali-gel layer atop the photoresist. The coated substrate is then placed in an environment with a higher than normal humidity. The surface of the coated glass is selectively exposed to a beam of a writing laser, the exposure being controlled by digital information to be recorded on the disc. Exposed portions of the coated substrate experience a chemical reaction between the photoresist and the alkali material in the humid environment. Exposed portions are then developed and ablated thereby creating the pits and lands.Type: GrantFiled: April 6, 2001Date of Patent: February 19, 2002Assignees: Sony Corporation, Sony Electronics, Inc.Inventor: Edward W. Morton
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Patent number: 6313453Abstract: A method of manufacturing an optical disc master from a glass substrate includes coating the substrate with a layer of photoresist, and applying an alkali-gel layer atop the photoresist. The coated substrate is then placed in an environment with a higher than normal humidity. The surface of the coated glass is selectively exposed to a beam of a writing laser, the exposure being controlled by digital information to be recorded on the disc. Exposed portions of the coated substrate experience a chemical reaction between the photoresist and the alkali material in the humid environment. Exposed portions are then developed and ablated thereby creating the pits and lands.Type: GrantFiled: October 29, 1999Date of Patent: November 6, 2001Assignees: Sony Corporation, Sony Electronics, Inc.Inventor: Edward W. Morton
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Patent number: 6285639Abstract: A system for the on-the-fly control of jitter during optical disc mastering/recording includes a record disc (24) having a recording surface (26) thereon of the type in which a pit can be read directly after it is written. A write-laser (32) directs its write-beam (34) though an acousto-optic modulator (36) onto the recording surface (26) of the rotating record disc (24). A digital processor (42) accepts digital input values and outputs a signal to the acousto-optic modulator (36) that effectively gates the write-beam (34) on and off. A read-laser (46) is positioned downtrack from the write-laser (32) and reads the pits (16) immediately or shortly after being written by the write-laser (32). The output of the read-laser (46) is fed into a jitter detector (48) that senses the start and stop positions of a sequence of pits (16) and effects an analysis to arrive at a jitter value.Type: GrantFiled: April 29, 1998Date of Patent: September 4, 2001Assignees: Sony Corporation, Sony Electronics, Inc.Inventors: Glenn J. Maenza, Edward W. Morton
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Patent number: 6272101Abstract: An apparatus and method for mass producing optically readable discs includes providing an array of light emitting devices which are arranged in a spiral pattern corresponding to the spiral track along which data is recorded on optically readable discs. The light emitting devices of the array are driven selectively to expose a layer of photoresist on a substrate. The light is focused on the substrate by an array of micro-lenses corresponding to the array of light emitting devices. When the photoresist on the substrate is developed, it can either by cured for use as a stamper or metallized for use in forming, in succession, a father, a mother and a stamper.Type: GrantFiled: December 15, 1998Date of Patent: August 7, 2001Assignees: Sony Corporation, Sony Electrons, Inc.Inventor: Edward W. Morton
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Patent number: 6151290Abstract: A light beam optical recorder has a light emitting diode as a light source. Selecting the type of the LED used and the type of a photoresist employed with the selected LED results in creating pits of nearly laser quality. The recorder is substantially cheaper and also offers other advantages over a laser-type recorder.Type: GrantFiled: February 5, 1998Date of Patent: November 21, 2000Assignees: Sony Corporation, Sony Electronics, Inc.Inventor: Edward W. Morton
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Patent number: 6077350Abstract: The present invention provides a system and method for thermally curing polymeric coated substrates by effective drying of solvents used in the production of the coated component. A feedback system coupled to a heating apparatus is comprised of one or more gas sensors internal or external to the heating apparatus to provide monitoring of the quantity of solvent gases being generated. The present invention allows the curing process to be precisely controlled, where, for example, a predetermined concentration of solvent gases input to the gas sensor can trigger the heating process to be stopped or to provide for a controlled cool down period for curing of the photoresist substrate. A controller coupled between the gas sensor and the heating apparatus may also contain temperature and/or time controls for varying the output of the heating apparatus in response to indications from the gas sensor.Type: GrantFiled: March 10, 1998Date of Patent: June 20, 2000Assignees: Sony Corporation, Sony ElectronicsInventors: Edward W. Morton, Robert Andrukaitis, Joseph Scarpinato
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Patent number: 6025118Abstract: A method of manufacturing an optical disc master from a glass substrate includes coating the substrate with a layer of photoresist, and applying an alkali-gel layer atop the photoresist. The coated substrate is then placed in an environment with a higher than normal humidity. The surface of the coated glass is selectively exposed to a beam of a writing laser, the exposure being controlled by digital information to be recorded on the disc. Exposed portions of the coated substrate experience a chemical reaction between the photoresist and the alkali material in the humid environment. Exposed portions are then developed and ablated thereby creating the pits and lands.Type: GrantFiled: May 12, 1998Date of Patent: February 15, 2000Assignees: Sony Corporation, Sony Electronics, Inc.Inventor: Edward W. Morton
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Patent number: 5622816Abstract: A method and apparatus for creating an optical disk mother or stamper wherein the number of processing steps is greatly reduced from the prior art methods. In particular, the present invention involves directly forming a mother or stamper by direct laser ablation of a conductive metal substrate. More specifically, a stream of coded digital information (for example, representing the content of an encyclopedia in the case of CD ROM or a classical music collection in the case of CD audio) is converted into a corresponding plurality of pits and lands in the conductive metal substrate by electronically switching the beam of a first laser on and off via an electro or acusto-optic modulator (EOM/AOM) in response to the digital information. As a result, selective portions of the conductive substrate are either ablated (in the case where the laser is on) thereby directly creating the pits, or the substrate is left unaltered (in the case where the laser is off) thereby creating lands.Type: GrantFiled: June 7, 1995Date of Patent: April 22, 1997Assignees: Sony Corporation, Sony Music Entertainment, Inc.Inventors: Glenn J. Maenza, Edward W. Morton
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Patent number: 5494782Abstract: A method and apparatus for creating an optical disk mother or stamper wherein the number of processing steps is greatly reduced from the prior art methods. In particular, the present invention involves directly forming a mother or stamper by direct laser ablation of a conductive metal substrate. More specifically, a stream of coded digital information (for example, representing the content of an encyclopedia in the case of CD ROM or a classical music collection in the case of CD audio) is converted into a corresponding plurality of pits and lands in the conductive metal substrate by electronically switching the beam of a first laser on and off via an electro or acusto-optic modulator (EOM/AOM) in response to the digital information. As a result, selective portions of the conductive substrate are either ablated (in the case where the laser is on) thereby directly creating the pits, or the substrate is left unaltered (in the case where the laser is off) thereby creating lands.Type: GrantFiled: July 29, 1994Date of Patent: February 27, 1996Assignees: Sony Corporation, Sony Music EntertainmentInventors: Glenn J. Maenza, Edward W. Morton
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Patent number: 4958102Abstract: A three way lamp having two gas discharge light tubes mounted on the same housing having three terminals arranged thereon as provided on a three-way incandescent lamp.Type: GrantFiled: November 4, 1987Date of Patent: September 18, 1990Assignee: North American Philips CorporationInventors: William E. Wilson, Edward W. Morton, Daniel W. O'Mullan
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Patent number: 4857808Abstract: A modified impedance rapid start fluorescent lamp system is provided with interrupted cathode heating. This structure includes a circuit in parallel with one of the bimetal switches at each side of a cathode. The circuit includes a current limiting capacitor and bleeder resistor connected in parallel with each other and a third normally closed thermal bimetal switch.Type: GrantFiled: September 1, 1988Date of Patent: August 15, 1989Assignee: North American Philips CorporationInventors: William J. Lally, Edward W. Morton
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Patent number: 4748368Abstract: A three way lamp having two gas discharge light tubes mounted on the same housing in a light-transmitting bulb.Type: GrantFiled: December 27, 1984Date of Patent: May 31, 1988Assignee: North American Philips Lighting CorporationInventors: William E. Wilson, Edward W. Morton, Daniel W. O'Mullan
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Patent number: 4501992Abstract: An energy-saving instant-start series-sequence fluorescent lamp system includes power-reducing capacitor means connected in series circuit arrangement with one or both lamps in a two-lamp system. A protective device is connected in circuit with a first lamp of the system so that in the event the second lamp fails to operate and causes a high current to flow through the first lamp, the protective device reacts to prevent the system from being damaged. A lamp incorporating the power-reducing capacitor and protective device is also disclosed.Type: GrantFiled: August 23, 1982Date of Patent: February 26, 1985Assignee: North American Philips Lighting Corp.Inventors: George S. Evans, Edward W. Morton, John F. Gilmore, deceased, by Roderick A. Gilmore, Administrator
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Patent number: 4435670Abstract: An energy-saving instant-start series-sequence fluorescent lamp system includes power-reducing capacitor means connected in series circuit arrangement with one or both lamps in a two-lamp system. A protective device is connected in circuit with a first lamp of the system so that in the event the second lamp fails to operate and causes a high current to flow through the first lamp, the protective device reacts to prevent the system from being damaged. A lamp incorporating the power-reducing capacitor and protective device is also disclosed.Type: GrantFiled: September 8, 1981Date of Patent: March 6, 1984Assignee: North American Philips Electric Corp.Inventors: George S. Evans, John F. Gilmore, Edward W. Morton
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Patent number: 4375607Abstract: The convoluted fluorescent lamp component of a compact lamp unit is mechanically and electrically coupled to a base module by a plate-like mounting member which is secured to the module in suspended fashion and has socket means which permit the lamp component and associated energizing-circuit components to be plugged into and removed from the module. The mounting member is structured and oriented to also provide a peripheral air passageway which, in conjunction with vent openings in the module and in a protective cover which is secured to the module, allows air to flow freely through the operating unit and convection-cool the fluorescent lamp. The lamp unit can accordingly be operated at high power loadings without overheating and can also be easily relamped and provided with new circuit components (such as a ballast and/or a starter) to prolong its useful life.Type: GrantFiled: March 23, 1981Date of Patent: March 1, 1983Assignee: Westinghouse Electric Corp.Inventors: Edward W. Morton, Thomas E. Dooley, Daniel W. O'Mullan
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Patent number: D271424Type: GrantFiled: November 13, 1980Date of Patent: November 15, 1983Assignee: North American Philips Electric Corp.Inventors: Robert G. Young, Edward W. Morton, Henry Skwirut, Thomas E. Dooley
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Patent number: D272653Type: GrantFiled: March 23, 1981Date of Patent: February 14, 1984Assignee: North American Philips Electric Corp.Inventors: Edward W. Morton, Daniel W. O'Mullan, Thomas E. Dooley
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Patent number: D274560Type: GrantFiled: November 14, 1983Date of Patent: July 3, 1984Assignee: North American Philips Electric Corp.Inventors: Robert G. Young, Edward W. Morton, Henry Skwirut, Thomas E. Dooley
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Patent number: D275327Type: GrantFiled: November 14, 1983Date of Patent: August 28, 1984Assignee: North American Philips Electric Corp.Inventors: Robert G. Young, Edward W. Morton, Henry Skwirut, Thomas E. Dooley