Patents by Inventor Tetsuji Yamamoto

Tetsuji Yamamoto 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).

  • Publication number: 20040158831
    Abstract: A process scheduling apparatus has a delayed task handling process for processing delayed tasks having variable priorities and multiple other processes for handling processes other than delayed tasks. Fixed priorities are assigned to the other processes. The process scheduler sequentially executes the delayed task handling process and the other processes according the assigned priorities. A delayed task registration processor stores newly generated delayed tasks with assigned priorities in a queuing table. A delayed task priority controller selects the delayed task with the highest priority in the queuing table.
    Type: Application
    Filed: January 5, 2004
    Publication date: August 12, 2004
    Inventors: Katsushige Amano, Tetsuji Yamamoto, Kiyoshi Owada, Hiroyuki Machida, Takao Shinohara
  • Publication number: 20040139439
    Abstract: To start up an operating system (OS), CPU performs initializations in three modes: The three modes include a first I/O initialization (Early init) (132) which is to be done serially when no threads are yet usable, without any advanced technique and with a long wait time until a next operation can be made; a second I/O initialization (136) which is to be done when threads are usable, in a plurality of steps parallelized with each other using the usable threads according to the dependency relation between devices to be initialized and with synchronization between the steps each by a barrier; and a third I/O initialization (Lazy init) (140) in which remaining initializations are done in parallel with each other using the threads commensurately to a user process when the user process becomes executable. The present invention is applicable to home-use electric or electronic appliances.
    Type: Application
    Filed: December 29, 2003
    Publication date: July 15, 2004
    Applicants: Sony Corporation, MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Hiroyuki Machida, Takao Shinohara, Kiyoshi Owada, Tetsuji Yamamoto, Katsushige Amano
  • Patent number: 6674438
    Abstract: An entertainment apparatus has a manual controller for entering control information, a main memory for loading therein a program and information for use by the program, a CPU for performing processing according to the program based on control information entered by the manual controller, a GTE and a GPU for generating at least image information based on the processing performed by the CPU, and a display monitor for displaying image information generated by the GTE and the GPU. A method of adding information for use by a program run on the entertainment apparatus has the step of adding additional information by loading the additional information via a memory card or a portable information terminal into the main memory of the entertainment apparatus. The method allows game characters, backgrounds, etc. that can be used by a game program, for example, to be increased in number or added to permit the user to enjoy a game that is rich in variety even if the game program is of existing nature.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: January 6, 2004
    Assignee: Sony Computer Entertainment Inc.
    Inventors: Tetsuji Yamamoto, Kenji Sawaguchi, Yuji Shinkai
  • Patent number: 6595860
    Abstract: A portable information terminal can effectively utilize game results and is arranged to be multifunctional. When result information is transmitted from a terminal to another terminal, the destination terminal adds the transmitted result information to result information which has already been held thereby. The items of result information are sorted in the order of scores, and score data are updated. Of the updated result information, the result information having the same identification number as the identification number of the terminal is displayed on a display unit of the terminal.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: July 22, 2003
    Assignee: Sony Computer Entertainment Inc.
    Inventors: Tetsuji Yamamoto, Kenji Sawaguchi, Yuji Shinkai
  • Publication number: 20020002643
    Abstract: A study mode processing means incorporated in a portable information terminal has a input processing means for instructing an LED to emit light in response to the inputting of a code by the user, a light-emitting signal generating means for generating and outputting a light-emitting signal to the LED according to a turn-on or turn-off instruction from the input processing means, a character converting means for converting code information based on a code entered by the user into character information, a character displaying means for displaying a reference character to be studied, a determining means for determining whether character information based on code information entered by the user matches the reference character or not, and a determined result displaying means for displaying a determined result from the determining means on the display unit.
    Type: Application
    Filed: December 15, 2000
    Publication date: January 3, 2002
    Inventors: Tetsuji Yamamoto, Koji Tada, Toshimitsu Ohdaira, Teruhiko Kakinuma
  • Patent number: 4805135
    Abstract: There is provided an information processing apparatus of a code-compressed image information for use in a facsimile apparatus or an electronic file. This apparatus comprises: an image memory to store the coded image data; a printer to print the image data; a counter to read out the data from the memory and to count the number of lines of the image data; and a controller to control the printer so as to allow the image data to be divided and printed in response to the count value of the counter. The size data of the image data is compared with the count value and when they coincide, the controller controls the printer. If the image data exceeds the line number of one standard scale recording sheet, the printer is controlled so as to divide and record the image data on two or more recording cut sheets.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: February 14, 1989
    Assignees: Canon Kabushiki Kaisha, Nippon Telegraph and Telephone Corporation
    Inventors: Hiroshi Ochi, Nobuji Tetsutani, Tetsuji Yamamoto, Hiroshi Nobuta
  • Patent number: 4788598
    Abstract: A coding method includes the steps of dividing an image into a plurality of blocks each consisting of a plurality of picture elements, dividing gray scale information of each intrablock picture element into three components, i.e, (1) a reference level representing a position of a signal level of an intrablock picture element in a whole dynamic range of gray scale representation, (2) a level difference representing a distribution range of the signal levels of the intrablock picture elements, and (3) a level designating signal representing a level of each intrablock picture element within the distribution range, and independently coding the three components.
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: November 29, 1988
    Assignee: Nippon Telegraph and Telephone Corp.
    Inventors: Hiroshi Ochi, Makoto Kobayashi, Hisashi Ibaraki, Tetsuji Yamamoto
  • Patent number: 4698688
    Abstract: An image processing system includes an image reader unit which reads an image so as to generate it as 4-bit data, and a communication unit for converting the 4-bit data into 6-bit data. The communication unit forms the 6-bit data in such a manner that an upper 2-bit component of the 4-bit data is added to the 4-bit data as a lower 2-bit component of the 6-bit data. The resultant 6-bit data is supplied to a binary printer and is subjected to halftone processing and printing. Image signals having different bit numbers can be processed and excellent image reproduction can be achieved with a simple system.
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: October 6, 1987
    Assignees: Nippon Telegraph and Telephone Corporation, Canon Kabushiki Kaisha
    Inventors: Hiroshi Ochi, Nobuji Tetsutani, Tetsuji Yamamoto, Shigehisa Kitani, Asao Watanabe
  • Patent number: 4409623
    Abstract: A gray scale facsimile signal is divided into a plurality of block signals, each composed of a plurality of picture element signals. For each block signal are obtained binary space information indicating whether the level of each picture element signal is higher or lower than a threshold value, mean gradation information of the picture element signals having the levels above the threshold value and mean gradation information of the picture element signals having levels below the threshold value. When the difference between the two pieces of mean gradation information representing the gradation of the block signal is smaller than a predetermined value and/or when the number of picture element signals of the levels either higher or lower the threshold value is smaller than a predetermined value, the block signal is represented by one of the two pieces of gradation information and the entire space information of the block signal is set to one value of the binary space information.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: October 11, 1983
    Assignee: Nippon Telegraph & Telephone Public Corporation
    Inventors: Makoto Kobayashi, Tetsuji Yamamoto, Yoshihiro Jimbo
  • Patent number: RE37272
    Abstract: There is provided an information processing apparatus of a code-compressed image information for use in a facsimile apparatus or an electronic file. This apparatus comprises: an image memory to store the coded image data; a printer to print the image data; a counter to read out the data from the memory and to count the number of lines of the image data; and a controller to control the printer so as to allow the image data to be divided and printed in response to the count value of the counter. The size data of the image data is compared with the count value and when they coincide, the controller controls the printer. If the image data exceeds the line number of one standard scale recording sheet, the printer is controlled so as to divide and record the image data on two or more recording cut sheets.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: July 10, 2001
    Assignees: Nippon Telephone and Telegraph Corporation, Canon Kabushiki Kaisha
    Inventors: Hiroshi Ochi, Nobuji Tetsutani, Tetsuji Yamamoto, Hiroshi Nobuta