Patents by Inventor Munehiko Iwase

Munehiko Iwase 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).

  • Optical disc recording apparatus, optical disc reproducing apparatus, and multi-layered optical disc
    Publication number: 20050185542
    Abstract: Disclosed is an optical recording disc capable of limiting the redundancy of recorded information and reducing facility investments and manufacturing cost.
    Type: Application
    Filed: February 24, 2005
    Publication date: August 25, 2005
    Applicant: Pioneer Corporation
    Inventor: Munehiko Iwase
  • System and apparatus for supplying audiovisual information to a subscriber terminal
    Publication number: 20030051251
    Abstract: A system and apparatus for transmitting audio and video information to one or more subscribers terminal from a server. Each subscriber terminal includes a storage unit. The server selects an information distribution scheme (unicast or multicast) and sends the information to the subscriber terminal(s). Each subscriber terminal receives the information in accordance with the selected information distribution scheme, and stores the information in the storage unit. The system can cope with multiple requests from the subscribers without increasing the VOD service cost.
    Type: Application
    Filed: September 10, 2002
    Publication date: March 13, 2003
    Applicant: Pioneer Corporation
    Inventors: Masao Sugimoto, Osamu Tazawa, Takashi Okano, Munehiko Iwase
  • Arrangement for supplying audiovisual information to a subscriber terminal
    Publication number: 20030051250
    Abstract: An arrangement for transmitting audiovisual information to one or more subscribers terminal from a server. Each subscriber terminal includes a storage unit. The server selects a transmission channel and/or transmission rate in accordance with a type of information to be distributed and/or other factors. The server then distributes the information on the basis of the selected transmission channel and/or rate. The system can cope with requests flooding from the subscribers without increasing the VOD service cost.
    Type: Application
    Filed: September 10, 2002
    Publication date: March 13, 2003
    Applicant: Pioneer Corporation
    Inventors: Masao Sugimoto, Osamu Tazawa, Takashi Okano, Munehiko Iwase
  • Tracking servo system
    Patent number: 5150344
    Abstract: In the tracking servo system according to the present invention, the noise removal means for removing a high-frequency noise component contained in the tracking error signal is in an operative state in normal playing operation, while the noise removal means is made to be in an inoperative state at least in an opened state of the servo loop.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: September 22, 1992
    Assignee: Pioneer Electronic Corporation
    Inventors: Munehiko Iwase, Hidehiro Ishii, Noriyoshi Takeya, Tatsuya Fukuda
  • Servo apparatus for optical disk player having both open loop coarse gain control and closed loop fine gain control
    Patent number: 5146443
    Abstract: A servo apparatus for an optical disk player which coarsely adjusts the loop gain in advance in an open state of a servo loop, and then closes the servo loop to finely adjust the loop gain. This ensures accurate and sure gain control even if there are differences between reflection factors of the recording surfaces of disks being played or is a stain or the like on an objective lens of the player.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: September 8, 1992
    Assignee: Pioneer Electronic Corporation
    Inventors: Munehiko Iwase, Noriyoshi Takeya