Patents by Inventor Kuniaki Miyazawa

Kuniaki Miyazawa 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: 6577292
    Abstract: An improved panel type color display device and system for processing image information includes a combiner circuit for combining, in correspondence, line address information, data selector address information, and plotting information to vary a transmittance level by applying a pulses to each pixel, each pulse having a duration shorter than that which would cause the pixel to reach its maximum transmittance level.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: June 10, 2003
    Inventor: Kuniaki Miyazawa
  • Patent number: 6078304
    Abstract: According to the panel type color display device of the present invention, the image information is converted into the serial data in which the color data of colors R, G, and B are sequentially switched within the video frame, and the image data for one screen are repetitively overwritten in the respective color frames of R, G, and B at the time period of the display frame, and the liquid crystal is intermiittently driven plural times. Thus, the high-speed response and the large responding quantity of the liquid crystal can be surely obtained comparing with the case of continuously driving the liquid crystal. As a result, the video with high contrast can be realized in respective short color frames, and the gradation difference can be expressed by regulating the number of repetitive overwriting.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: June 20, 2000
    Inventor: Kuniaki Miyazawa
  • Patent number: 5731794
    Abstract: A three-color backlight type display device according to the present invention is provided for reproducing a full color image with no use of color filters. In use, a composite signal is separated by a RGB decoder into R, G, and B color components which are sampled on a frame-by-frame basis and stored as a serial RGB data into a RAM. The color components of the serial data are read from the RAM with a delay of one frame after the write time and within a shorter duration for data compression. The color components of compressed form are transmitted to an LCD where each of them is allocated to form a dot pattern during a blanking period. In synchronization with the allocation of the color component, a corresponding one of the three backlights is irradiated. This action is repeated for all the R, G, and B components in a succession. Accordingly, a clear color image can be reproduced having less unwanted artifacts, e.g.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: March 24, 1998
    Assignees: Kazuo Aoki, Yasuaki Gomi
    Inventor: Kuniaki Miyazawa
  • Patent number: 4941478
    Abstract: A pillow provided with a power unit for rotating its top surface about a horizontal center line of rotation into a new angular position whenever a snoring noise is detected. The angular position of the head of the sleeping person is thereby changed gradually enough not to wake him up but since his larynx is changed into a new state every time the top surface of the pillow is rotated into a new angular position the snoring noise is eventually controlled. Reliable detection of snoring noise is made possible by taking advantage of the periodic nature of the snoring noise.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: July 17, 1990
    Assignee: Shohei Takeuchi
    Inventors: Shohei Takeuchi, Kuniaki Miyazawa, Takenosuke Ikematsu
  • Patent number: 4072139
    Abstract: This carburetor comprises plural cell carburetors which are controlled by a servo controller which controls the internal pressure of the carburetor to maintain the pressure constant by opening the air paths of needed number of the cell carburetors.Every one of the cell carburetors is either completely opened or almost closed; that is there is no intermediate opening between said two conditions except for special use.The ratios of air to fuel which is produced in each cell carburetor are predetermined for both the open and almost closed positions.Needed air and fuel are supplied by a combination of the cell carburetors which are selected from combinations of the cell carburetors to be selected for the working condition of the combustion engine.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: February 7, 1978
    Inventor: Kuniaki Miyazawa
  • Patent number: 4015204
    Abstract: A method of telecommunications involving a train of binary signals. A predetermined number (a frame) of the signals is stored in a first register. There are second, third and fourth registers, each of which stores a different number of binary digits, but the total digits stored in the second, third and fourth registers equals the total storage capacity of the first register. The digits are read out of the first register into the second, third and fourth registers. There are three carrier waves for the outputs of the second, third and fourth registers respectively. The ratio of the frequency of a carrier wave to the number of binary signals in the group that is complementary to that particular carrier wave is the same for each carrier wave and its complementary group of binary signals. The three carrier waves are amplitude modulated by the contents of their complementary registers so that each cycle of each carrier wave represents a single binary digit.
    Type: Grant
    Filed: August 8, 1975
    Date of Patent: March 29, 1977
    Inventor: Kuniaki Miyazawa
  • Patent number: 3939953
    Abstract: In a coin discriminating apparatus containing a feedback oscillator circuit having a feedback loop, a mechanical filter is arranged and includes a discriminated coin, a speaker to vibrate the coin and a sensor to pick up the vibration of the coin; a one cycle selector for taking out one period of the vibration frequency generated at the oscillator circuit; means for quantizing the output signal of the one cycle selector by clock pulses; counter means including a scale-of-1000 counter and a decoder for counting the number of clock pulses; and bistable circuit means whose state is reversed on receipt of an output produced at the decoder when contents of the counter run up to the lower limit or the upper limit of a tolerance predetermined under the crossing rate distribution for natural frequencies of a genuine coin.
    Type: Grant
    Filed: June 18, 1974
    Date of Patent: February 24, 1976
    Assignee: Mitani Shoji Kabushiki Kaisha
    Inventor: Kuniaki Miyazawa