Patents Assigned to Sharp Laboratories
  • Patent number: 8077710
    Abstract: A wireless client device (e.g. a WSD) discovers vacant DTV channels using location information acquired from a Dynamic Host Configuration Protocol (DHCP) server. In one aspect of the invention, a wireless client device discovers vacant DTV channels through direct communication with a local DHCP server and a remote primary user database server. In another aspect of the invention, a wireless client device discovers vacant DTV channels from an access device that communicates with a local DHCP server and a remote primary user database server.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: December 13, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Song-Lin Young, Daniel J. Park
  • Patent number: 8073925
    Abstract: A device management system and method is provided. The device management system and method includes a transmission server to transmit a communication from at least one device. A reception server receives the communication from the at least one device. And a device manager coupled to the reception server manages the at least one device by automatically parsing the communication received by the reception server. The device manager authorizes the communication for further processing where the device manager includes a device list including identification data associated with the at least one device. The device manager includes an alert processing component that generates an alert message responsive to the device list.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: December 6, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Phil Wheeler, Eric Olbricht
  • Publication number: 20110291919
    Abstract: A method for modifying an image to be displayed on a display includes receiving an image to be displayed on the display having a backlight and a transmissive panel. A backlight signal is provided to the backlight for causing the backlight to selectively illuminate different portions of the backlight with different characteristics. The characteristics include at least one of a different color and a difference luminance. A panel signal is provided to the panel for causing the transmissive panel to selectively change its transmittivities. At least one of the backlight signal and the panel signal are modified in a manner to reduce off-axis artifacts.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 1, 2011
    Applicant: Sharp Laboratories of America, Inc.
    Inventors: Louis Joseph Kerofsky, Benjamin John Broughton
  • Patent number: 8068551
    Abstract: A method for designing a reference signal to be transmitted in a multiplexed cellular system is described. A first set of matrices that comprises a plurality of matrices is selected. An optimal partition of the first set of matrices is determined. A third matrix is formed. The third matrix represents a cross-correlation of a second matrix and each of the plurality of first matrices. A minimum corresponding to the first set of matrices is set. The second matrix is updated using the minimum corresponding to the first set of matrices. Each column of the second matrix is scaled by a first value.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: November 29, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: John M. Kowalski
  • Patent number: 8069254
    Abstract: A method for communication period management in a communication system is disclosed. The method may involve determining a duration of a communication period that is scheduled between two electronic devices. The method may then involve determining whether the duration exceeds a threshold. If the duration does not exceed the threshold, the communication period may be unscheduled. Furthermore, the unscheduled time may be rescheduled with another communication period to another electronic device. The method may also involve determining whether a conflict exists between the communication period and any other communication periods that are scheduled to involve either of the electronic devices. If a conflict exists, the communication period may be unscheduled.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: November 29, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Daryl J. Hlasny
  • Patent number: 8069409
    Abstract: Methods and systems for customized remote access to imaging node front panels offer improvements in the areas of unified access, on-screen viewing and comprehension of front panels delivered by diverse imaging nodes to remote client nodes. The imaging nodes may be diverse, for example, in terms of message formats used to deliver front panel data, screen resolution assumptions implicit in front panel data and languages in which front panel data are delivered. Customization is provided, in some embodiments, by a server node that intermediates between the imaging nodes and the client nodes.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: November 29, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Rabindra Pathak
  • Patent number: 8068087
    Abstract: Aspects of the present invention relate to systems and methods for detecting motion in frames of a video sequence and for generating and applying a backlight modulation screen comprising at least one modulation pulse width dependent on the motion detection. Some aspects relate to a motion map variable used to determine modulation pulse widths for the backlight modulation screen.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: November 29, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Xiao-Fan Feng
  • Publication number: 20110286671
    Abstract: A method for determining edge features of an image comprising filtering at least a portion of the image to attenuate high frequency signals of the image to an extent greater than low frequency signals of the image. Performing a one-dimensional search in a two different horizontal directions relative to a particular pixel of the image to determine horizontal direction local maximums. Calculating a horizontal gradient based upon the horizontal direction local maximums. Performing a one-dimensional search in a two vertical horizontal directions relative to a particular pixel of the image to determine vertical direction local maximums. Calculating a vertical gradient based upon the vertical direction local maximums. Calculating a gradient for the particular pixel based upon the horizontal gradient and the vertical gradient.
    Type: Application
    Filed: May 18, 2010
    Publication date: November 24, 2011
    Applicant: Sharp Laboratories of America, Inc.
    Inventor: Xinyu Xu
  • Patent number: 8065384
    Abstract: Aspects of the present invention relate to systems, methods and devices for imaging device event notification, administration and subscription. Some aspects relate to a subscription application executable on a remote computing device, wherein the subscription application may generate and send a subscription request. Some aspects may limit notification subscription to authorized credential holders. Some aspects relate to event notification message formats and destinations.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: November 22, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Boguslaw Ludwik Plewnia, Lena Sojian, Joey P. Lum, Uoc H. Nguyen
  • Patent number: 8060884
    Abstract: A method and system for scheduling tasks in a computing device ensures substantially seamless processing of an active job while preventing starvation of background tasks. In one aspect, a method comprises the steps of statically allocating processor time to a background task class and dynamically allocating processor time to background tasks within the background task class based at least in part on a current count of the background tasks. The background task processor time may equal the background task class processor time divided by the current count. The method may further comprise, in each of successive processing periods, assigning a processor to each of the background tasks for their respective background task processor times and assigning the processor to active job tasks when the processor is not assigned to any of the background tasks. The computing device may be a printing device.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: November 15, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Tommy Lee Oswald
  • Patent number: 8059632
    Abstract: A method and system for optimizing channel quality indicator (CQI) transmissions by mobile devices in a cellular network allows transmission of CQIs at a slower rate and with fewer bits during voice-over-internet-protocol (VoIP) sessions than during non-real-time (NRT) data transmissions. A VoIP transmission typically includes “talkspurt” periods, during which VoIP packets are transmitted, and silence periods, which start with a silence indication (SID) packet and continue with periodic SID packets until a VoIP packet is received. When the base station is transmitting NRT data, the mobile device transmits CQIs to the base station at a first rate, with each CQI having a first fixed number of bits. When the base station is transmitting VoIP to the mobile device, then during a talkspurt period, the mobile device may transmit CQIs to the base station at a second rate slower than the first rate, and each CQI may have a second fixed number of bits less than the first fixed number of bits.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: November 15, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Shugong Xu
  • Patent number: 8060921
    Abstract: Embodiments of the present invention comprise systems, methods and devices for eliminating multiple submission of user credential data in a system with multiple distinct restricted sub-systems wherein a unique credential is required for each sub-system.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: November 15, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: David J. Lovat, Hanzhong Zhang
  • Patent number: 8059311
    Abstract: Multilevel color page image rendering via multi-bit output devices including the rounding of tone levels, dual tone scan patterns and the selecting or generating of halftone cells and electrophotography engines and image processors for rendering multilevel tone density objects such as font and line art.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: November 15, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Ching-Wei Chang
  • Patent number: 8060930
    Abstract: Embodiments of the present invention comprise systems, methods and devices for imaging device credential submission wherein credentials are extracted by scanning graphical indicia on user documents using a primary document scanner.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: November 15, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: David J. Lovat, Hanzhong Zhang
  • Patent number: 8060651
    Abstract: In an exemplary embodiment, an RTP packetization component receives data partitions corresponding to a single slice of coded data from an H.264 encoder. The RTP packetization component evaluates a first set of conditions in order to determine whether to merge the data partitions into a single packet for transport over a network or to include the data partitions in separate packets for transport over the network. If it is determined that each condition within the first set of conditions is satisfied, the data partitions are merged into the single packet. If any condition within the first set of conditions is not satisfied, the data partitions are included in the separate packets.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: November 15, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Sachin G. Deshpande, Quan Li
  • Patent number: 8059714
    Abstract: Embodiments of the present invention comprise systems and methods for managing and combining data contained in layers in a multilayer bitstream such that one or more transform coefficients in a first layer are used to modify one or more coefficients in a second layers that in turn is reconstructed using the modified one or more coefficients.
    Type: Grant
    Filed: March 31, 2007
    Date of Patent: November 15, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Christopher A. Segall
  • Patent number: 8059178
    Abstract: A complementary metal oxide semiconductor (CMOS) imager flush reset circuit is provided. The flush reset circuit has an interface to receive first (e.g., VDD) and second (e.g., ground) reference voltages. The flush reset circuit has a solitary (flush) signal interface. There is also an interface connected to a transistor set power interface to supply a Vflush1 signal at least one threshold voltage different than the second reference voltage, in response to receiving a flush signal. The flush signal is used to create a CMOS imager hard reset prior to a soft reset.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: November 15, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Sheng Teng Hsu, Jong-Jan Lee
  • Patent number: 8059588
    Abstract: A method for shifting the position of a symbol to reduce transmission overhead is described. A frame with a plurality of symbols is provided. A determination is made whether the frame includes an indication of an event. At least one symbol of the plurality of symbols is shifted based on the determination. A counter is set to an initial value. The frame with the at least one shifted symbol is transmitted.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: November 15, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Prem L. Sood
  • Patent number: 8054497
    Abstract: An effective and efficient means for composition printing of multi-page image data is disclosed. Multiple image files may be received and read into memory to be processed and printed as a single job. Pages may be reordered and/or a subset of pages may be selected for printing by changing the link order between image file directories (IFDs) in the image headers before sending the image data to a printing device. Once processed to select and reorder pages for printing, the image data is streamed directly to the output, with each offset entry in the IFD being modified on-the-fly to correspond to its relocated position. When an image is skipped, the data associated with the image is not written out to the printing device. When the end of one file is reached, the next file is merged into the existing output stream relative to the end of the previous file.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: November 8, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Andrew Rodney Ferlitsch
  • Patent number: 8053266
    Abstract: A piezo thin-film diode (piezo-diode) cantilever microelectromechanical system (MEMS) and associated fabrication processes are provided. The method deposits thin-films overlying a substrate. The substrate can be made of glass, polymer, quartz, metal foil, Si, sapphire, ceramic, or compound semiconductor materials. Amorphous silicon (a-Si), polycrystalline Si (poly-Si), oxides, a-Site, poly-SiGe, metals, metal-containing compounds, nitrides, polymers, ceramic films, magnetic films, and compound semiconductor materials are some examples of thin-film materials. A cantilever beam is formed from the thin-films, and a diode is embedded with the cantilever beam. The diode is made from a thin-film shared in common with the cantilever beam. The shared thin-film may a film overlying a cantilever beam top surface, a thin-film overlying a cantilever beam bottom surface, or a thin-film embedded within the cantilever beam.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: November 8, 2011
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Changqing Zhan, Paul J. Schuele, John F. Conley, Jr., John W. Hartzell