Patents by Inventor Susumu Tsuhara

Susumu Tsuhara 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).

  • Patent number: 4785296
    Abstract: A display system which uses one display unit as if it were a plurality of display units to separately display whole information and partial information of document is disclosed. A plurality of display windows are defined on one display screen and a layout or a reduced image of the whole information is displayed in one of the window and information or image representing the information of a partial area of the whole information is displayed in other window. When one of the whole information and the partial area information is changed, the other information is also changed correspondingly, or a mark indicating a relation between the whole information and the partial area information is displayed in one of the window.
    Type: Grant
    Filed: February 3, 1987
    Date of Patent: November 15, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Kuniaki Tabata, Tetsuo Machida, Susumu Tsuhara, Hidefumi Iwami, Yasuyuki Okada
  • Patent number: 4716404
    Abstract: Image retrieval method and apparatus wherein for retrieval of a plurality of images, a sub-image of each image is specified and extracted, reference data such as memo data related to each sub-image is stored, and the sub-image and the memo data related thereto are combined and outputted as desired, thereby simplifying the retrieval of the plurality of images. Specifically, a sub-image which is the most characteristic to each image is extracted and combined with a memo data to thereby provide a clear clue to the image extraction. The number of specified sub-images is freely increased without rewriting original image data stored in an image file and image retrievel is settled by using a memo image and a cutout sub-image both having a less amount of data than the entire image, so that applications to a storage medium which is not rewritable, for example, an optical disc can be ensured with high response image display.
    Type: Grant
    Filed: March 29, 1984
    Date of Patent: December 29, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Kuniaki Tabata, Susumu Tsuhara
  • Patent number: 4692757
    Abstract: A multimedia display system for efficiently and economically displaying document information containing characters, a graph and a picture image, without using a large-capacity image memory is disclosed in which information in a window is directly written in a bit-map memory or the display screen of a display device, without necessitating an image memory having a storage capacity corresponding to one page of a document. The multimedia display system is effectively used in the multiwindow display method, and includes a transfer controller for controlling data transfer between the bit-map memory and a memory device including a main memory, a picture image memory and a font memory, to control the size, position and contents of each window and to make possible image synthesis or image conversion.
    Type: Grant
    Filed: December 22, 1983
    Date of Patent: September 8, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Susumu Tsuhara, Kuniaki Tabata, Yasuyuki Okada
  • Patent number: 4574364
    Abstract: In a method for controlling an image display apparatus having a file management table for managing information including titles of image data stored in a file memory and storage addresses therefor and a window management table for managing information including locations and sizes of windows on a display screen and quarry locations of the image data, the content of the window management table in accordance with an input command is updated so that the location and size of the window, the superposition of the windows and the scrolling of the window can be interactively changed.
    Type: Grant
    Filed: November 23, 1982
    Date of Patent: March 4, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Kuniaki Tabata, Susumu Tsuhara, Tetsuo Machida, Hidefumi Iwami, Yasuyuki Okada
  • Patent number: 4511962
    Abstract: A memory control unit for a computer has the function of extracting or synthesizing only a necessary portion from or to two-dimensional image scan data, in addition to a conventional main memory function. It comprises an address controller for calculating an address of data to be transferred based on source and destination start addresses A.sub.1 and A.sub.2 of the two-dimensional image scan data, a lateral length W.sub.1 and a longitudinal length of the necessary portion, and lengths I.sub.1 and I.sub.2 of unnecessary portion, and a controller for controlling memory read/write operation.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: April 16, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Tetsuo Machida, Susumu Tsuhara, Kuniaki Tabata, Yasuyuki Okada