Patents Examined by Duy Dang
  • Patent number: 7146053
    Abstract: Apparatus and methods are provided for encoding independently decodable pieces of compressed data to accommodate reordering of the pieces of compressed data before or after manipulation. Encoding can occur before or after manipulation of the source information. For example, in the context of a JPEG image, MCUs can be rotated and promptly compressed with restart markers without extra buffering to put the MCUs in the correct rotated order. Later, the order of the independently decodable pieces can be changed to accommodate proper output. Alternatively, pointers to the independently decodable pieces can be used to present the data to the decoder in the proper order. Additional reentry information within the independently decodable pieces of compressed data can allow initiation of decoding at other than the independently decodable points. Such reentry information preferably would include bit-level pointers and sufficient state information to initialize the decoder properly.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: December 5, 2006
    Assignee: International Business Machines Corporation
    Inventors: Nenad Rijavec, Joan LaVerne Mitchell
  • Patent number: 7116819
    Abstract: An image processing apparatus for processing RGB image data output from an image capturing element including a primary-color filter, includes: a middle-high range luminance component compensation section for compensating for a middle-high range luminance component of a low-frequency luminance signal generated based on the RGB image data such that the low-frequency luminance signal has substantially an ideal frequency luminance characteristic which is lower than or equal to a predetermined frequency.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: October 3, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Xiaomang Zhang
  • Patent number: 6128104
    Abstract: A facsimile apparatus having an energy saving function includes an auxiliary controller or subcontroller for managing the conditions of the apparatus. While the subcontroller is in operation, a time manager manages the duration of a stand-by state of the apparatus and feeds time information to the subcontroller. A main controller delivers, before the stand-by state, a specified cancelling time for cancelling the stand-by state to the subcontroller. In the stand-by state, the subcontroller compares the time information and specified cancelling time. When the specified cancelling time is reached, the auxiliary controller cancels the stand-by state and causes power to be fed to the main controller and preselected units.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: October 3, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Shohji Okabe, Shigeru Katsuragi