Patents Represented by Attorney Osterlenk, Faber, Gerb & Soffen, LLP
  • Patent number: 7230403
    Abstract: 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: Grant
    Filed: April 29, 2004
    Date of Patent: June 12, 2007
    Assignee: International Rectifier Corporation
    Inventor: Eddy Ying Yin Ho
  • Patent number: 7206603
    Abstract: 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: Grant
    Filed: May 11, 2005
    Date of Patent: April 17, 2007
    Assignee: NEC Corporation
    Inventor: Masahito Shinohara
  • Patent number: 7190124
    Abstract: 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: Grant
    Filed: May 16, 2005
    Date of Patent: March 13, 2007
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Russikesh Kumar, Stuart DeJonge, David J. Dolan
  • Patent number: 6855042
    Abstract: 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: Grant
    Filed: October 30, 2000
    Date of Patent: February 15, 2005
    Assignee: Wernicke & Co. GmbH
    Inventors: Ralf Werner, Fritz Kötting
  • Patent number: 6821992
    Abstract: 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: Grant
    Filed: July 9, 2002
    Date of Patent: November 23, 2004
    Assignee: Aventis CropScience S.A.
    Inventors: Tracey Cooke, David Hardy, Brian Moloney, Peter Stanley Thomas, Chris Richard Steele, Geoffrey Gower Briggs
  • Patent number: 6807455
    Abstract: 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: Grant
    Filed: June 11, 2003
    Date of Patent: October 19, 2004
    Assignee: Dainippon Screen Mfg. Co. Ltd.
    Inventors: Takushi Yoshida, Tetsuya Hamada
  • Patent number: 6424473
    Abstract: 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: Grant
    Filed: June 28, 2000
    Date of Patent: July 23, 2002
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Takeshi Nakane, Shigeo Hayashi, Tatsuo Takanashi
  • Patent number: 5795501
    Abstract: 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: Grant
    Filed: September 10, 1996
    Date of Patent: August 18, 1998
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Haruhiko Kano
  • Patent number: D515812
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: February 28, 2006
    Inventor: Paul Giampavolo
  • Patent number: D516947
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: March 14, 2006
    Inventor: Paul Giampavolo