Patents by Inventor John M. Baker
John M. Baker 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: 11963324Abstract: Electronic equipment may include structured fabric. Structured fabric may be used as a protective case or cosmetic cover for an electronic device, may be used to form a band that holds an electronic device against a user's body, or may be used to cover one or more openings in an electronic device. Structured fabrics may be soft and pliable while maintaining the ability to hold a given shape without added support. Structured fabric may be formed by laminating fabric such as warp-knit fabric with a stiffener such as polymer film. Structured fabrics may include openings through which signals such as optical or audio signals pass. To maintain the geometry and shape of the openings in the structured fabric without covering the openings, the stiffener and adhesive that are attached to the fabric may be cut to form a pattern of openings that align with the openings in the fabric.Type: GrantFiled: March 23, 2021Date of Patent: April 16, 2024Assignee: Apple Inc.Inventors: Yohji Hamada, John J. Baker, Peter F. Coxeter, Benjamin M. Rappoport, Joseph B. Walker
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Publication number: 20240043229Abstract: Repulsive force created by actuated permanent magnets is used to levitate and transport heavy loads. A bed of permanent magnets is selectively actuated to levitate an array of magnets positioned above the bed, such that the magnets in the levitated array are opposed to the actuated magnets, and of the same magnetic pole, thereby creating a repulsive force. The actuated magnets are vertically offset from magnets in the bed of permanent magnets that have not been raised, thereby imparting maximum levitation forces to the magnets in the levitated array. These systems can levitate and transport objects over level or sloped surfaces, in a straight path or along curves and corners. A bed of magnets can be attached to the floor, or to a set of moving decks that rearrange themselves in a desired path. Our systems can simulate walking or running, similar to a treadmill or virtual gaming platform.Type: ApplicationFiled: December 16, 2021Publication date: February 8, 2024Applicants: SRI International, US Positronix Inc.Inventors: John M. Baker, Remigio Perales, Clifford J. P. Gilman
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Publication number: 20230286552Abstract: We use permanent magnets to levitate and transport heavy loads. A bed of permanent magnets is selectively actuated to levitate an array of magnets positioned above the bed, such that the magnets in the levitated array are opposed to the actuated magnets, and of the same magnetic pole, thereby creating a repulsive force. The actuated magnets are offset from magnets in the bed of permanent magnets that have not been actuated, thereby imparting maximum levitation forces to the magnets in the levitated array. Our systems use magnetic repulsive force for levitating and transporting goods across a warehouse, simulating walking or running such as on a treadmill or in a virtual gaming platform, and for transporting people such as on a moving sidewalk. Our systems are electrical machines for holding or levitating devices using magnetic levitation, and also use permanent magnets to transmit power wirelessly.Type: ApplicationFiled: August 11, 2021Publication date: September 14, 2023Applicants: US Positronix Inc., SRI InternationalInventors: John M. Baker, Remigio Perales, Clifford J. P. Gilman
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Patent number: 7094614Abstract: A method and apparatus are provided for controlling a CVD process used to deposit films on semiconductor substrates wherein the by-products of the reaction are measured and monitored during the reaction preferably using mass spectrometry and the results used to calculate the concentrations of the by-products and to control the CVD reaction process based on the by-product concentrations. An exemplary CVD process is the deposition of tungsten metal on a semiconductor wafer. A preferred method and apparatus uses a capillary gas sampling device for removing the by-product gases of the reaction as a feed for the mass spectrometer. The capillary gas sampling device is preferably connected to a differential pump.Type: GrantFiled: January 16, 2001Date of Patent: August 22, 2006Assignee: International Business Machines CorporationInventors: Douglas S. Armbrust, John M. Baker, Arne W. Ballantine, Roger W. Cheek, Doreen D. DiMilia, Mark L. Reath, Michael B. Rice
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Patent number: 6445530Abstract: An apparatus and method for supplying bi-directional load current to a load device. Four current sensing metal oxide semiconductor field effect transistors are operably configured to form an H-bridge with the load device, each transistor having separately insulated gate, source and drain and sense terminals with a source to drain conductivity determined in relation to a voltage applied to the gate terminal and a sense current from the sense terminal determined in relation to a magnitude of source to drain current. Drive voltages are applied to the gate terminals of alternating pairs of the transistors to apply the load current to the load device. The sense currents are used to provide adaptive, closed-loop clamping of the drive voltages at levels sufficient to maintain the non-load current conducting transistors in a quiescent state.Type: GrantFiled: September 24, 1999Date of Patent: September 3, 2002Assignee: Seagate Technology LLCInventor: John M. Baker
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Publication number: 20020094681Abstract: A method and apparatus are provided for controlling a CVD process used to deposit films on semiconductor substrates wherein the by-products of the reaction are measured and monitored during the reaction preferably using mass spectrometry and the results used to calculate the concentrations of the by-products and to control the CVD reaction process based on the by-product concentrations. An exemplary CVD process is the deposition of tungsten metal on a semiconductor wafer. A preferred method and apparatus uses a capillary gas sampling device for removing the by-product gases of the reaction as a feed for the mass spectrometer. The capillary gas sampling device is preferably connected to a differential pump.Type: ApplicationFiled: January 16, 2001Publication date: July 18, 2002Inventors: Douglas S. Armbrust, John M. Baker, Arne W. Ballantine, Roger W. Cheek, Doreen D. DiMilia, Mark L. Reath, Michael B. Rice
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Patent number: 6420274Abstract: A method for conditioning the inside walls of a process chamber is described incorporating a selected process gas such as Br, Br2, HBr, Cl2, HCl, F2, SiFx, and NF3, a pressure controller, and a timer for soaking the chamber. The invention overcomes the problem of running dummy product wafers to condition the chamber.Type: GrantFiled: May 10, 2000Date of Patent: July 16, 2002Assignee: International Business Machines CorporationInventors: John M. Baker, Marc Waine Cantell, Paul Wiliam Pastel, Alejandro Gabriel Schrott, Ying Zhang
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Patent number: 6272733Abstract: An improved method and procedure of change-out of a defective power transformer. A replacement transformer is temporarily substituted for the defective transformer which is to be removed. The replacement transformer is brought to the transformer site and placed on a suitable support while the defective transformer is disconnected. The replacement transformer is temporarily electrically connected between the incoming utility lines and customer facility, and the defective transformer is removed. In the event the site has become contaminated by leaking transformer fluid or the like, the site is cleaned up. Then, the replacement transformer or another transformer, is moved to the site and connected in place of the removed defective transformer.Type: GrantFiled: December 16, 1997Date of Patent: August 14, 2001Inventor: John M. Baker, Jr.
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Patent number: 6208280Abstract: An apparatus and method for converting a pulse-width modulation (PWM) signal to an analog voltage signal. A current source is provided to supply electrical charge at a controllable rate to a ramp capacitor which, during successively occurring cycles of the PWM signal, alternatively receives electrical charge from the current source and discharges previously received electrical charge. A first sampling capacitor receives electrical charge from the ramp capacitor to output a feedback voltage to a feedback circuit to adjust the rate of electrical charge supplied by the current source, with the charge transferred to the first sampling capacitor determined in relation to the charge stored on the ramp capacitor over an entire PWM cycle. A second sampling capacitor receives electrical charge from the ramp capacitor to output the analog voltage, with the charge transferred to the second sampling capacitor determined in relation to the duty cycle of the PWM signal.Type: GrantFiled: June 4, 1999Date of Patent: March 27, 2001Assignee: Seagate Technology LLCInventors: John M. Baker, Edward N. Jeffrey, Robert Whyte, Jr.
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Patent number: 6016043Abstract: A motor control circuit controls a motor in a disc drive is provided. The motor control circuit includes a commutation circuit which provides commutation signals to the motor to commutate the motor at a commutation frequency. A frequency modulation circuit is operably coupled to the commutation circuit. The frequency modulation circuit provides a modulation signal which frequency modulates the commutation frequency according to a predetermined pattern.Type: GrantFiled: January 28, 1998Date of Patent: January 18, 2000Assignee: Seagate Technology, Inc.Inventors: Andrew R. Motzko, Garry E. Korbel, John M. Baker, Stuart K. Francis
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Patent number: 5686696Abstract: A transformer pad is disclosed for receiving and supporting a utility transformer and for collecting and containing leaking liquid from the transformer. The transformer pad includes a container in the shape of a box having an open top and providing a containment reservoir for containing liquid leaking from a transformer. A cover is provided on the open top, and the cover has a containment area onto which a utility transformer can be disposed and which includes one or more openings for receiving any leaking liquid from the transformer and directing the liquid to the interior of the container. A seal member is disposed on the cover adjacent the containment area for providing a seal around the periphery of a transformer.Type: GrantFiled: March 2, 1995Date of Patent: November 11, 1997Inventors: John M. Baker, Jr., Jimmie Ray Meuir
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Patent number: 5204652Abstract: A solenoid valve comprising with a plunger which is readily and accurately adjustable to various heights whereby the solenoid is able to function with virtually all fluid flow control systems. The solenoid includes an elongated base which may have multiple threads to accommodate a variety of connectors and a bleed screw formed to be minimally disruptive to the electromagnetic field. A measurement standard, in the form of a cylinder and piston combination, is shaped to fit within the solenoid body and accurately determine the desired length of the specific plunger. The piston is mounted to move in the cylinder and, in conjunction with the cylinder, to assume the exact length required for the plunger within the solenoid to function correctly in operating the valve. The plunger is adjustable which allows the height thereof to be precisely and securely set to the height determined by the measurement standard.Type: GrantFiled: May 28, 1991Date of Patent: April 20, 1993Assignee: National Irrigation Specialists, Inc.Inventors: John M. Baker, Ronald C. Jess
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Patent number: 5074326Abstract: A solenoid valve comprising with a plunger which is readily and accurately adjustable to various heights whereby the solenoid is able to function with virtually all fluid flow control systems. The solenoid includes an elongated base which may have multiple threads to accommodate a variety of connectors and a bleed screw formed to be minimally disruptive to the electromagnetic field. A measurement standard, in the form of a cylinder and piston combination, is shaped to fit within the solenoid body and accurately determine the desired length of the specific plunger. The piston is mounted to move in the cylinder and, in conjunction with the cylinder, to assume the exact length required for the plunger within the solenoid to function correctly in operating the valve. The plunger is adjustable which allows the height thereof to be precisely and securely set to the height determined by the measurement standard.Type: GrantFiled: November 20, 1990Date of Patent: December 24, 1991Assignee: National Irrigation SpecialistsInventors: John M. Baker, Ronald C. Jess
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Patent number: 4995083Abstract: The method comprises transmitting an initiating signal in the form of a bit pattern as a continuous burst from one radio unit to the other. The pattern incorporates a preamble pattern and a security code having a plurality of bit sequences. Each sequence is transmitted a number of times. The received security code is compared with stored codes in the other unit, and if a matching pair is identified a response signal is transmitted from the other unit to said one unit. The response signal incorporates the preamble pattern for establishing synchronization between the radio units.Type: GrantFiled: July 31, 1989Date of Patent: February 19, 1991Assignee: GEC Plessey Telecommunications LimitedInventors: John M. Baker, Peter N. Proctor, Andrew S. Pearce
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Patent number: 4853346Abstract: A method for forming an ohmic contact on a GaAs semiconductor material comprising depositing a non-uniform layer of Au onto the surface layer of the semiconductor material, depositing a multi-layer ohmic contact of AuGeNi onto the non-uniform layer and alloying the ohmic contact to the semiconductor material. The non-uniform Au layer may be deposited by backscattering Au during sputter cleaning of the semiconductor surface wherein the electrode is coated with Au. After alloying, the ohmic contact comprises a two layer structure having a high density of large area NiAs(Ge) grains contacting the semiconductor material as the first layer and an AuGa phase as the top layer. The ohmic contact has reduced contact resistance and exhibits a reduction in the spread of contact resistance after high temperature annealing.Type: GrantFiled: December 31, 1987Date of Patent: August 1, 1989Assignee: International Business Machines CorporationInventors: John M. Baker, Alessandro C. Callegari, Dianne L. Lacey, Yih-Cheng Shih
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Patent number: 4672515Abstract: The present invention consists of a device that provides for easy adjustment of the direction of illumination produced by a utility light through a multiplicity of orientations from one attachment position. The device herein uses a metal track attached to the utility light, which track passes through a clamp and wherein the clamp can be releasably attached to various points along the track. Thus, by movement of the clamp along the track, the direction of illumination produced by the utility light can be adjusted. In addition, the device herein includes a magnet connected to the clamp for mounting of the utility light on suitable ferrous-metal support objects. Engagement and disengagement of the clamp from the track is accomplished by rotating the magnet.Type: GrantFiled: May 1, 1985Date of Patent: June 9, 1987Inventor: John M. Baker
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Patent number: 4661719Abstract: A circuit device which is connected to an existing clocked memory circuit to provide additional clocked memory circuitry for a plurality of substantially independent switches within the parameters and constraints established at the main control station for an existing switch.Type: GrantFiled: October 15, 1984Date of Patent: April 28, 1987Assignee: J. B. EnterprisesInventors: Loyal E. Burchfiel, John M. Baker
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Patent number: D316292Type: GrantFiled: November 21, 1988Date of Patent: April 16, 1991Inventor: John M. Baker
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Patent number: D329797Type: GrantFiled: December 4, 1989Date of Patent: September 29, 1992Inventor: John M. Baker