Patents Represented by Attorney Vedder Price P.C.

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  • Sigma-delta difference-of-squares RMS-to-DC converter with forward and feedback paths signal squaring
    Patent number: 7545303
    Abstract: A sigma-delta difference-of-squares RMS-to-DC converter and method for performing such a conversion in which a square of an analog feedback signal is combined differentially with a square of an analog input signal, thereby producing an analog product signal that includes at least one signal component corresponding to a difference between such signal squares. This analog product signal is filtered and digitized to produce a digital output signal to be available for use downstream in or with the host system, with such digital output signal also being converted to the analog feedback signal.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: June 9, 2009
    Assignee: National Semiconductor Corporation
    Inventors: Paulo Gustavo Raymundo Silva, Michael Hendrikus Laurentius Kouwenhoven
  • Control of the UV radiation sources for a weathering apparatus on the basis of the averaged radiation intensity
    Patent number: 7544948
    Abstract: The radiation power emitted from the UV radiation sources (2) in a weathering apparatus is controlled such that the radiation power of each of the radiation sources (2) is measured in a predetermined spectral range of the radiation emitted from the radiation sources, with the spectral range being chosen such that the measured radiation power is representative of the radiation power in the UV, an averaged radiation power is calculated from the measured radiation powers, and the averaged radiation power is used for controlling the electrical power to be supplied to the radiation sources (2). In particular, the control process can be carried out in such a way that the same electrical power, within a predetermined tolerance bandwidth, is supplied to each of the radiation sources (2), and the averaged radiation power is kept constant over time at a desired nominal value.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: June 9, 2009
    Assignee: Atlas Material Testing Technology GmbH
    Inventors: Artur Schönlein, Bernhard Börner, Bernd Rudolph, Peter March
  • Method and apparatus for sampling on a non-power-of-two pixel grid
    Patent number: 7545387
    Abstract: The embodiments of the present invention are a method and apparatus to perform anti-aliasing using multi-sampling on a non-power-of-two pixel grid. Using the present invention with 6 sample multisampling gives the same visual antialiasing quality as 8 samples using a prior art technique but uses less memory. A non-power-of-two equally spaced sample from a conventional grid of size N×N, where N is 12 can be chosen using the present invention. A scan conversion to determine the set of pixels covered by a polygon is performed in two parts. According to one embodiment, the present invention can multiply and divide by “N” in order to multisample an image using samples per pixel chosen from a N×N sub-sample grid, where “N” is not necessarily a power of 2. The present invention performs the divide by “N” step, where the step is achieved using a quick divide by 3 or 12 technique.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: June 9, 2009
    Assignee: ATI Technologies ULC
    Inventors: Mark M. Leather, Eric Demers
  • System of accessing data in a graphics system and method thereof
    Patent number: 7543101
    Abstract: A central processor unit (CPU) is connected to a system/graphics controller generally comprising a monolithic semiconductor device. The system/graphics controller is connected to an input output (IO) controller via a high-speed PCI bus. The IO controller interfaces to the system graphics controller via the high-speed PCI bus. The IO controller includes a lower speed PCI port controlled by an arbiter within the IO controller. Generally, the low speed PCI arbiter of the IO controller will interface to standard 33 MHz PCI cards. In addition, the IO controller interfaces to an external storage device, such as a hard drive, via either a standard or a proprietary bus protocol. A unified system/graphics memory which is accessed by the system/graphics controller. The unified memory contains both system data and graphics data. In a specific embodiment, two channels, CH0 and CH1 access the unified memory.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: June 2, 2009
    Assignee: ATI Technologies ULC
    Inventors: Milivoje Aleksic, Raymond M. Li, Danny H. M. Cheng, Carl K. Mizuyabu, Antonio Asaro
  • Extrusion die device for a molding machine
    Patent number: 7540735
    Abstract: An extrusion die device for a molding machine includes an accumulator which includes a housing, a core extending into the housing, and a main passage formed between the core and the housing and having interconnected upper and lower passage sections. The upper passage section has inner and outer annular passages spaced apart radially from each other. A die head has a die orifice and a die exit connected to a bottom end of the lower passage section. An extruding unit includes an annular plunger disposed movably within the housing, and dividing the upper passage section into the inner and outer passage sections. Two differently colored plastics can be extruded by the single annular plunger from the inner and outer passage sections through the die head.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: June 2, 2009
    Assignee: Jih Huang Machinery Industrial Co, Ltd.
    Inventor: Ping-Jung Lin
  • Method and apparatus for generating hierarchical depth culling characteristics
    Patent number: 7538765
    Abstract: A method and apparatus for generating hierarchical depth culling characteristics includes determining a first minimum depth value and a first maximum depth value for a first graphical element. The graphical element may be a primitive. The first minimum depth value may be a minimum Z-plane depth of a pixel within the primitive and a first maximum depth value is a maximum Z-plane value for a pixel within the primitive. The method and apparatus further includes determining a second minimum depth value and a second maximum depth value for a second graphical element, which may be a tile. The method and apparatus further includes calculating an intersection depth range having an intersection minimum depth value and an intersection maximum depth value based on the intersection of the first minimum depth value and the first maximum depth value and the second minimum depth value and the second maximum depth value.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: May 26, 2009
    Assignee: ATI International SRL
    Inventors: Larry D. Seiler, Laurent Lefebvre, Stephen L. Morein
  • Computing device with flexibly configurable expansion slots, and method of operation
    Patent number: 7539801
    Abstract: A computing device that allows for a flexible allocation of bandwidth among peripheral devices using a peripheral bus is disclosed. The computing device includes a peripheral bus and at least two slots. The computing device may be used with a single peripheral card or multiple peripheral cards. In a multi-card configuration the invention allows the bandwidth on the peripheral bus to be shared by all the cards. In a single-card configuration, the computing device allows available bandwidth on the peripheral bus to be used by a single card. The device is particularly useful with PCI express compliant expansion cards, such as graphics adapters.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: May 26, 2009
    Assignee: ATI Technologies ULC
    Inventors: Yaoqiang (George) Xie, Roumen Saltchev
  • Multi-modal communication using a session specific proxy server
    Patent number: 7536454
    Abstract: A method and apparatus for multi-modal communication includes a controller (236) operably coupled to at least one multi-modal session proxy server (226). On a per multi-modal session basis, the controller (236) provides the multi-modal session proxy server (226) with a multi-modal proxy identifier (138). The multi-modal proxy identifier (138) is then provided to at least one browser with a per session multi-modal proxy evaluator (220) having a browser proxy identifier (140) wherein the browser proxy identifier (140) is evaluated in view of the multi-modal proxy identifier (138). The multi-modal session proxy server (226) then receives an information request (231) from the browser with per session multi-modal proxy evaluator (220) wherein the requested information is fetched from a content server (240).
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: May 19, 2009
    Assignee: Motorola, Inc.
    Inventor: Senaka Balasuriya
  • Video mode detection circuit
    Patent number: 7532252
    Abstract: A video signal mode detector for automatically detecting and indicating the type of video signal being received in terms of its video signal characteristics, including horizontal line count and progressive or interlaced scanning.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: May 12, 2009
    Assignee: National Semiconductor Corporation
    Inventor: Dongwei Chen
  • Snow plow
    Patent number: 7523568
    Abstract: A snow plow with a clutch mechanism for allowing the plow blade to deflect when an off-center portion the blade strikes an obstacle. The clutch comprises two plates in axial alignment, with one plate being attached to brackets for the plow support and the other plate being attached to brackets supporting the blade. One plate has a number of small protuberances and the other plate a corresponding number of shallow pockets. The plates are releasably held in nested relation by an axially adjustable mechanism.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: April 28, 2009
    Inventor: Barry A. Willey
  • Volumetric X-ray imaging system with automatic image resolution enhancement
    Patent number: 7526065
    Abstract: An automated X-ray imaging system and method for producing a plurality of X-ray imaging signals having selectively enhanced volumetric image resolutions, e.g., for magnifying the field of view and providing a volumetric display image having features not otherwise visible to an unaided human eye. Successive doses of X-ray radiation are applied to a portion of the subject to produce corresponding volumetric image signals. Such doses of X-ray radiation are controlled by controlling X-ray radiation characteristics, such as intensity, focal spot size, focal spot location, focal spot shape, or collimation, to cause a subsequent volumetric image signal to differ from a prior volumetric image signal in one or more volumetric image characteristics, such as volumetric image resolution.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: April 28, 2009
    Assignee: Varian Medical Systems Technologies, Inc.
    Inventor: Dan Hardesty
  • Sigma-delta modulator with DAC resolution less than ADC resolution
    Patent number: 7525464
    Abstract: A sigma-delta modulator is provided with a feedback digital-to-analog converter having less resolution than the quantizer, while providing a reduced length output word, requiring minimal additional internal processing, and shaping of the truncation error by an effective noise transfer function greater than the order of the host sigma-delta modulator.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: April 28, 2009
    Assignee: National Semiconductor Corporation
    Inventors: Franco Maloberti, Masood Yousefi, Ahmad Bahai
  • Method for measuring permeability of a ferromagnetic material in an integrated circuit
    Patent number: 7525323
    Abstract: A method for determining consistency of a permeability of a ferromagnetic material in integrated circuits in which a test strip of the subject ferromagnetic material is included for testing with an impedance measurement instrument, such as an inductance-capacitance-resistance (LCR) meter, with which the resistance of the strip of ferromagnetic material over a range of measurement signal frequencies is determined based upon the measured impedance values. The measured impedance values, measurement signal frequencies and selected permeability values are then used in numerical simulations to produce multiple resistance versus frequency curves each of which corresponds to one of the selected permeability values.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: April 28, 2009
    Assignee: National Semiconductor Corporation
    Inventors: Peter J. Hopper, Kyuwoon Hwang, Peter I. Smeys, Andrei Papou
  • Differential voltage comparator
    Patent number: 7525348
    Abstract: A circuit and method for comparing and providing a signal indicative of a difference in magnitude between a differential signal voltage and a differential reference voltage.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: April 28, 2009
    Assignee: National Semiconductor Corporation
    Inventor: Ramsin M. Ziazadeh
  • Video synchronization signal detection circuit
    Patent number: 7522216
    Abstract: A video synchronization signal detector for detecting occurrences of single and double frequency synchronization signal pulses present during a vertical synchronization interval.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: April 21, 2009
    Assignee: National Semiconductor Corporation
    Inventor: Dongwei Chen
  • Sigma-delta modulator with DAC resolution less than ADC resolution and increased tolerance of non-ideal integrators
    Patent number: 7522079
    Abstract: A sigma-delta modulator is provided with a feedback digital-to-analog converter having less resolution than the quantizer, while providing a reduced length output word, requiring minimal additional internal processing, and shaping of the truncation error by an effective noise transfer function greater than the order of the host sigma-delta modulator, and further providing increased tolerance of non-ideal integrators.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: April 21, 2009
    Assignee: National Semiconductor Corporation
    Inventor: Jian-Yi Wu
  • Wireless device method and apparatus with drawing command throttling control
    Patent number: 7522125
    Abstract: A wireless drawing command transmitting unit includes a wireless transmitter operative to transmit drawing commands associated with a master image renderer. A wireless drawing command receiving unit includes a wireless receiver operative to receive the transmitted drawing commands and generates an image for a display device using the drawing commands transmitted wirelessly. In addition, the wireless drawing command receiving unit transmits drawing command throttle data back to the wireless drawing command transmitting unit to throttle transmission of drawing commands that are sent by the drawing command transmitting unit. A method for providing wireless display of images is also disclosed.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: April 21, 2009
    Assignee: ATI International SRL
    Inventors: David Glen, Edward G. Callway
  • Receptacle
    Patent number: D591168
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: April 28, 2009
    Assignee: Senju Pharmaceutical Co., Ltd.
    Inventor: Tadashi Otsuka
  • Receptacle
    Patent number: D591169
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: April 28, 2009
    Assignee: Senju Pharmaceutical Co., Ltd.
    Inventor: Tadashi Otsuka
  • Light fixture
    Patent number: D593704
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: June 2, 2009
    Assignee: Louis Poulsen Lighting A/S
    Inventor: Ross Lovegrove