Patents by Inventor Tomoaki Iizuka

Tomoaki Iizuka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of driving solid-state image sensing device
    Patent number: 5847757
    Abstract: A driving method for a solid-state image sensing device includes the steps of: transferring signal charges generated at pixels (12) arranged in odd rows in the column upward direction through vertical transfer paths (13) each arranged for each column; temporarily accumulating the upward transferred signal charges for one field at a first accumulation region (14) and transferring the accumulated signal charges row by row in sequence for each field period through other vertical transfer paths (18) to a first horizontal path (16); transferring the upward transferred signal charges in the horizontal row direction row by row through the first horizontal transfer path (16); transferring signal charges generated at pixels (12) arranged in even rows in the column downward direction through the same vertical transfer paths (13); temporarily accumulating the downward transferred signal charges for one field at a second accumulation region (15) and transferring the accumulated signal charges row by row in sequence for e
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: December 8, 1998
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobusuke Sasano, Kenichi Arakawa, Tomoaki Iizuka, Miho Kobayashi, Hideki Motoyama, Tetsuo Yamada
  • Method of driving solid-state image sensing device
    Patent number: 5500675
    Abstract: In the method of driving a solid-state image sensing device, for each vertical blanking (VBL), the signal charges of a first pixel group composed of photosensitive pixels of odd ordinal numbers counted in the vertical direction of the photosensitive region and the signal charges of a second pixel group composed of photosensitive pixels of even ordinal numbers counted in the same way are reversed in the vertical transfer direction, so that the signal charges of the first and second pixel groups can be outputted from the same charge detecting circuit for each field. Further, unnecessary accumulated charges in the pixel groups in the photosensitive region are cleared off in response to an accumulated charge clear pulse.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: March 19, 1996
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenichi Arakawa, Nobusuke Sasano, Tomoaki Iizuka, Miho Kobayashi, Tetsuo Yamada, Hideki Motoyama
  • Solid-state image sensing device capable of reading two-line signal charges independently
    Patent number: 5396091
    Abstract: Solid-state image sensing device is provided with a synthesizing section for synthesizing odd-field signal charges and even-field signal charges. The synthesizing section is a transfer path formed outside of the photosensitive region or vertical transfer paths formed in the photosensitive region. For the signal charge synthesis through vertical transfer path, after the integration, the signal charges are read simultaneously from the odd-line pixel group and the even-line pixel group. Further, it is possible to select either the method of outputting the odd-field signal charges and the even-field signal charges separately or the method of outputting the synthesized odd- and even-field signal charges.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: March 7, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Miho Kobayashi, Tomoaki Iizuka, Hideki Motoyama, Tetsuo Yamada, Kenichi Arakawa, Nobusuke Sasano