Patents Represented by Attorney Osterlenk, Faber, Gerb & Soffen, LLP
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Patent number: 7230403Abstract: A DC offset compensation system and method significantly reduce a DC offset voltage in the voltage feedback loop of an AC motor drive control system. A control voltage error signal is demodulated and filtered and applied to the closed loop voltage feedback signals to compensate for DC offset voltages in the closed loop voltage feedback. A frequency discriminator tuned to the fundamental motor frequency improves the precision of the DC offset detection. A startup flux DC offset compensation operates to eliminate initial startup flux DC offset. Motor flux compensation is improved through a variable flux filter time constant.Type: GrantFiled: April 29, 2004Date of Patent: June 12, 2007Assignee: International Rectifier CorporationInventor: Eddy Ying Yin Ho
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Patent number: 7206603Abstract: This invention relates to a cellular radio telephone set having a USB peripheral circuit which realizes a USB connection function. When the cellular radio telephone set is connected to an information processing terminal apparatus via a USB cable, a voltage Vbus supplied from the information processing terminal apparatus is regulated and supplied to the USB peripheral circuit. When the cellular radio telephone set is not connected to the information processing terminal apparatus via the USB cable, an application CPU which controls the USB peripheral circuit is shifted to a sleep mode.Type: GrantFiled: May 11, 2005Date of Patent: April 17, 2007Assignee: NEC CorporationInventor: Masahito Shinohara
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Patent number: 7190124Abstract: A dimmer circuit provides AC power to an inductive lighting load in series with the dimmer circuit. A bidirectional semiconductor switch has a control electrode with a control signal for determining the power provided to the load. The switch in normal operation is controlled to block voltage in first and second half-cycles of the AC voltage. In a failure mode it can block the AC voltage in only one half-cycle. A controller for the switch determines the failure mode of the switch occurs which can cause an asymmetry between the half-cycles and thus a DC voltage component. A power supply supplies power to the controller from across the dimmer circuit. The controller drives the switch into substantially full conduction during most of the half-cycle which the switch is able to control; and drive the switch into non-conduction for a period of time during that same half-cycle so as to reduce the DC voltage component to prevent excessive transformer heating.Type: GrantFiled: May 16, 2005Date of Patent: March 13, 2007Assignee: Lutron Electronics Co., Inc.Inventors: Russikesh Kumar, Stuart DeJonge, David J. Dolan
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Patent number: 6855042Abstract: Retaining device (1) for a block or suction element (10) in a centering device for spectacle lenses, having a support, which has a longitudinal axis (2), having a spherically dome-shaped bearing surface (3) on the support, having a spherical dome (5), which is mounted cardanically on the support and is complementary to the bearing surface, having a holding element (6) in the spherical dome for the block or suction element with a contact surface (11) for the spectacle lens, and having a radius (R) of the bearing surface and of the spherical dome, the mid-point (M) of which is located on the longitudinal axis of the support (1) on the contact surface for the spectacle lens.Type: GrantFiled: October 30, 2000Date of Patent: February 15, 2005Assignee: Wernicke & Co. GmbHInventors: Ralf Werner, Fritz Kötting
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Patent number: 6821992Abstract: The invention relates to compounds of general formula I, where A1, R1, R2 and Y are as defined in the description; and to their use as phytopathogenic fungicides.Type: GrantFiled: July 9, 2002Date of Patent: November 23, 2004Assignee: Aventis CropScience S.A.Inventors: Tracey Cooke, David Hardy, Brian Moloney, Peter Stanley Thomas, Chris Richard Steele, Geoffrey Gower Briggs
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Patent number: 6807455Abstract: A reference command value is transmitted from an apparatus server (90) through a network (96d) to spin processing units (SR1-SR4) of a substrate processing apparatus (1). Next, a plurality of correction amounts for making processing states in the respective spin processing units (SR1-SR4) substantially the same are computed from a plurality of measured values corresponding to the respective spin processing units (SR1-SR4) and the reference command value, and are additionally stored in a correction amount database (90a). For execution of substrate processing, a plurality of correction amounts corresponding to the reference command value are extracted from the database, and corresponding ones of the correction amounts plus the reference command value are transmitted to the respective spin processing units (SR1-SR4).Type: GrantFiled: June 11, 2003Date of Patent: October 19, 2004Assignee: Dainippon Screen Mfg. Co. Ltd.Inventors: Takushi Yoshida, Tetsuya Hamada
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Patent number: 6424473Abstract: A body frame, which is a lens barrel device, comprising two semi-circular torus-shaped lens frames, respectively, mounting thereto a forward-group lens and a rearward-group lens, and two guide shafts fixed to one of the lens frames and slidably inserted into a sleeve fixed to the other of the lens frames and into a slot, the two lens frames being supported to advance and retreat relative to each other. When a jig is used to assemble the lens frames, the two lens frames are mounted to the jig while the forward-group lens, the rearward-group lens and the two guide shafts are inserted into the jig with gaps therebetween, the jig being in a state, in which the forward-group lens, the rearward-group lens and the two guide shafts are retained in a predetermined position, and an adhesive is filled into and fixed to the respective gaps to complete assembly. Such lens body frame can ensure optical performance without being affected by accuracy of parts such as lens frames, guide shafts, photographing lenses and so on.Type: GrantFiled: June 28, 2000Date of Patent: July 23, 2002Assignee: Olympus Optical Co., Ltd.Inventors: Takeshi Nakane, Shigeo Hayashi, Tatsuo Takanashi
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Patent number: 5795501Abstract: Disclosed is an electrically-conductive composition suitable for hot wire heaters which take on a dark brown color instead of an amber color of silver. The composition comprises (A) silver powder, (B) glass frit, (C) rhodium or compound thereof, (D) inorganic pigment, and (E) organic vehicle.Type: GrantFiled: September 10, 1996Date of Patent: August 18, 1998Assignee: Murata Manufacturing Co., Ltd.Inventor: Haruhiko Kano
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Patent number: D515812Type: GrantFiled: November 1, 2004Date of Patent: February 28, 2006Inventor: Paul Giampavolo
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Patent number: D516947Type: GrantFiled: December 3, 2004Date of Patent: March 14, 2006Inventor: Paul Giampavolo