Patents by Inventor Tsuyoshi Akiyama

Tsuyoshi Akiyama 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: 6763450
    Abstract: The objective of the invention is to improve the processing efficiency of a system that repeatedly executes one instruction over multiple clock cycles. The SVP core 12 of this SVP (Scan-line Video Processor) 10 is made up of a three layer construction of the data input register (DIR) 16, the SIMD type digital signal processing unit 18, and the data output register (DOR) 20. The SIMD type digital signal processing unit 18 comprises a parallel arranged (connected) number of processing elements (PE0 to PEN−1) (for example, 864 units) equal to the number of pixels N on one horizontal scan line. The instruction generator (IG) 14, because the SVP core 12 operates as an SIMD parallel processor, internally houses a RAM or ROM program memory that holds the desired program.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: July 13, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Hiroshi Miyaguchi, Tsuyoshi Akiyama, Hidetoshi Onuma
  • Patent number: 6732252
    Abstract: A memory interface device of the present invention includes: an input buffer including a plurality of input areas; an output buffer including a plurality of output areas; and a control section for controlling the input buffer, the output buffer and a single port memory. The control section controls the input buffer and the single port memory so as to transfer a signal stored in one of the input areas of the input buffer to the single port memory while storing an input signal in another one of the input areas of the input buffer. The control section controls the output buffer and the single port memory so as to output as an output signal a signal stored in one of the output areas of the output buffer while transferring a signal stored in the single port memory to another one of the output areas of the output buffer.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: May 4, 2004
    Assignees: Matsushita Electric Industrial Co., Ltd., Texas Instruments Incorporated
    Inventors: Yoichiro Miki, Masahiro Tani, Kazuki Ninomiya, Naoya Tokunaga, Kenta Sokawa, Hiroshi Miyaguchi, Yuji Yaguchi, Tsuyoshi Akiyama, Kenya Adachi
  • Publication number: 20020184464
    Abstract: A memory interface device of the present invention includes: an input buffer including a plurality of input areas; an output buffer including a plurality of output areas; and a control section for controlling the input buffer, the output buffer and a single port memory. The control section controls the input buffer and the single port memory so as to transfer a signal stored in one of the input areas of the input buffer to the single port memory while storing an input signal in another one of the input areas of the input buffer. The control section controls the output buffer and the single port memory so as to output as an output signal a signal stored in one of the output areas of the output buffer while transferring a signal stored in the single port memory to another one of the output areas of the output buffer.
    Type: Application
    Filed: July 16, 2002
    Publication date: December 5, 2002
    Inventors: Yoichiro Miki, Masahiro Tani, Kazuki Ninomiya, Naoya Tokunaga, Kenta Sokawa, Hiroshi Miyaguchi, Yuji Yaguchi, Tsuyoshi Akiyama, Kenya Adachi
  • Patent number: 6453394
    Abstract: A memory interface device of the present invention includes: an input buffer including a plurality of input areas; an output buffer including 8 plurality of output areas; and a control section for controlling the input buffer, the output buffer and a single port memory. The control section controls the input buffer and the single port memory so as to transfer a signal stored in one of the input areas of the input buffer to the single port memory while storing an input signal in another one of the input areas of the input buffer. The control section controls the output buffer and the single port memory so as to output as an output signal a signal stored in one of the output areas of the output buffer while transferring a signal stored in the single port memory to another one of the output areas of the output buffer.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: September 17, 2002
    Assignees: Matsushita Electric Industrial Co., Ltd., Texas Instruments Inc.
    Inventors: Yoichiro Miki, Masahiro Tani, Kazuki Ninomiya, Naoya Tokunaga, Kenta Sokawa, Hiroshi Miyaguchi, Yuji Yaguchi, Tsuyoshi Akiyama, Kenya Adachi
  • Patent number: 6353460
    Abstract: The television receiver including a display device capable of displaying a video signal having a predetermined display former of this invention includes; a plurality of video signal sources; a selection circuit for selecting one of a plurality of video signals output from the plurality of video signal sources; and an image processor for converting a format of the video signal selected by the selection circuit into the predetermined display format, wherein a video signal output from the processor is supplied to the display device.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: March 5, 2002
    Assignees: Matsushita Electric Industrial Co., Ltd., Texas Instruments, Inc.
    Inventors: Kenta Sokawa, Kazuki Ninomiya, Yoichiro Miki, Naoya Tokunaga, Masahiro Tani, Hiroshi Miyaguchi, Yuji Yaguchi, Tsuyoshi Akiyama
  • Publication number: 20010056526
    Abstract: A memory interface device of the present invention includes: an input buffer including a plurality of input areas; an output buffer including a plurality of output areas; and a control section for controlling the input buffer, the output buffer and a single port memory. The control section controls the input buffer and the single port memory so as to transfer a signal stored in one of the input areas of the input buffer to the single port memory while storing an input signal in another one of the input areas of the input buffer. The control section controls the output buffer and the single part memory so as to output as an output signal a signal stored in one of the output areas of the output buffer while transferring a signal stored in the single port memory to another one of the output areas of the output buffer.
    Type: Application
    Filed: October 2, 1998
    Publication date: December 27, 2001
    Inventors: YOICHIRO MIKI, MASAHIRO TANI, KAZUKI NINOMIYA, NAOYA TOKUNAGA, KENTA SOKAWA, HIROSHI MIYAGUCHI, YUJI YAGUCHI, TSUYOSHI AKIYAMA, KENYA ADACHI
  • Patent number: 6127624
    Abstract: A photoresponsive electrode for a wet solar cell wherein on a metal film having fixed thereon a photoresponsive molecule such as, for example, a porphyrin derivative, there is fixed by vapor deposition a light-irradiating portion such as a prism or optical fibers, and the metal film is irradiated with a light via the light-irradiating portion at about the resonance incident angle .theta. of inducing surface plasmon resonance in the interface between the metal film and the light-irradiating portion, and a wet solar cell using the photoresponsive electrode. In the photoresponsive electrode, the reflection of the incident light at the metal film can be restrained and the photoresponsive molecule can be efficiently excited even by sunlight of a low energy and the wet solar cell has a very excellent photoelectric transformation efficiency.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: October 3, 2000
    Assignee: Japan Science and Technology Corporation
    Inventors: Akito Ishida, Yoshiteru Sakata, Hiroshi Imahori, Tsuyoshi Akiyama