Patents by Inventor Takashi Fukuyama

Takashi Fukuyama 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: 5905534
    Abstract: In accordance with this invention, in a moving picture decoding apparatus, MB (Macro Block) buffer 111 is provided to thereby absorb difference between read speed from IDCT (Inverse Discrete Cosine Transform) circuit 110 and write speed into reference frame memory 117 of motion compensating section, and DRAM writing buffer 115 is provided to thereby carry out timing adjustment between read and write operations with respect to reference frame memory 117. Namely, adder 114 adds predictive macro block signal S10 from reference frame memory 117 and output signal S9 from MB buffer 111 to write added signal into DRAM writing buffer 115. DRAM writing buffer 115 holds data for a time period until reference frame memory 117 completes preparation for write operation thereafter to write those data into reference frame memory 117. Thus, inexpensive DRAM can be used as reference frame memory.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: May 18, 1999
    Assignee: Sony Corporation
    Inventors: Hiroshi Sumihiro, Seiichi Emoto, Takashi Fukuyama
  • Patent number: 5867231
    Abstract: A method for decoding a video signal in which the decoding operation is completed within a predetermined time irrespective of the presence of an error which is generated on a bit strings. In the case where a bit strings formed by coding a video signal for each of predetermined blocks, the decoding operation is suspended upon the detection of the presence of an error in the bit strings followed by resuming the decoding operation from any of the synchronous codes present on the bit strings. At this time, it is judged on the basis of the position of the error detected from the bit strings as to from which synchronous code out of the synchronous codes present on the bit strings the decoding operation is resumed thereby completing within a predetermined time the decoding operation of a series of data groups including an error part of the bit strings.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: February 2, 1999
    Assignee: Sony Corporation
    Inventors: Toru Wada, Takashi Fukuyama
  • Patent number: 5552654
    Abstract: An electrostatic actuator includes a stationary element having a plurality of driving electrodes arranged in a predetermined direction and with predetermined spaces in an isolated state on an insulating supporter, a movable element, disposed in contact with the stationary element, electric wires connected to the driving electrodes of the stationary element, and a driving voltage control section to apply to the driving electrodes voltages which cause a change in the relative position of the first and second members by a Coulomb's force of static electricity between the stationary element and the movable element, which is produced by switching the voltages to the driving electrodes, wherein the driving voltage control section includes a power source of high voltage and direct current, a high voltage switching portion and a driving control portion; the power source including a transformer for raising the voltage of high frequency current signals, and a rectifier for rectifying an output of the transformer to obt
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: September 3, 1996
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shinji Konno, Takashi Fukuyama, Masahiro Yamamoto
  • Patent number: 4886559
    Abstract: A high strength titanium material having an improved ductility, contains 0.1 to 0.8% by weight of iron, a required oxygen and nitrogen satisfying the following expression, in which an oxygen equivalence Q ranges from 0.35 to 1.0,Q=[O]+2.77 [N]+0.1 [Fe]wherein[O] is an oxygen content % by weight[N] is a nitorgen content % by weight[Fe] is an iron content % bt weightthe rest being titanium and inevitable impurities, the oxygen and nitrogen exists as interstitial type solute elements in the titanium material, and the titanium material exhibits a two phase, an equiaxed phase or a lamellar phase, fine grain microstructure and has a tensile strength of 65 kgf/mm.sup.2 or more, and a method for producing same.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: December 12, 1989
    Assignees: Nippon Steel Corporation, Toho Titanium Co., Ltd.
    Inventors: Takuji Shindo, Hiromitsu Naito, Masayoshi Kondo, Takashi Fukuyama, Masaaki Koizumi, Nobuo Fukada