Patents by Inventor Katsumi Mikamo

Katsumi Mikamo 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: 5966164
    Abstract: A television telephone including a movable head section, a support section and a bottom section. The movable head section includes an imaging device for inputting images and a display for displaying images. The bottom section includes a communication controller for transmission and reception of encoded information of at least one of audio and visual signals to and from a communication network, and a telephone controller for controlling transmission and reception functions and including a key console unit. The support section serves for connecting the bottom section and the movable head section and for supporting the movable head section and includes an image encoder/decoder for encoding image input signals and for decoding received image signals.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: October 12, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Gotoh, Kiyoshi Ishida, Yoji Shibata, Masahiro Takahashi, Masaaki Takizawa, Kenji Yokoi, Katsumi Mikamo, Yoshinobu Matsubayashi, Iwao Ishinabe, Toshiaki Watanuki, Jun Furuya, Takushi Yoshimaru
  • Patent number: 5677727
    Abstract: A television telephone including a movable head section, a support section and a bottom section. The movable head section includes an imaging device for inputting images and a display for displaying images. The bottom section includes a communication controller for transmission and reception of encoded information of at least one of audio and visual signals to and from a communication network, and a telephone controller for controlling transmission and reception functions and including a key console unit. The support section serves for connecting the bottom section and the movable head section and for supporting the movable head section and includes an image encoder/decoder for encoding image input signals and for decoding received image signals.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: October 14, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Gotoh, Kiyoshi Ishida, Yoji Shibata, Masahiro Takahashi, Masaaki Takizawa, Kenji Yokoi, Katsumi Mikamo, Yoshinobu Matsubayashi, Iwao Ishinabe, Toshiaki Watanuki, Jun Furuya, Takushi Yoshimaru
  • Patent number: 5396269
    Abstract: A television telephone including a movable head section, a support section and a bottom section. The movable head section includes an imaging device for inputting images and a display for displaying images. The bottom section includes a communication controller for transmission and reception of encoded information of at least one of audio and visual signals to and from a communication network, and a telephone controller for controlling transmission and reception functions and including a key console unit. The support section serves for connecting the bottom section and the movable head section and for supporting the movable head section and includes an image encoder/decoder for encoding image input signals and for decoding received image signals.
    Type: Grant
    Filed: February 20, 1992
    Date of Patent: March 7, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Gotoh, Kiyoshi Ishida, Yoji Shibata, Masahiro Takahashi, Masaaki Takizawa, Kenji Yokoi, Katsumi Mikamo, Yoshinobu Matsubayashi, Iwao Ishinabe, Toshiaki Watanuki, Jun Furuya, Takushi Yoshimaru
  • Patent number: 4819097
    Abstract: An audio signal recording/reproducing system is used in a time-lapse video tape recording device for time-lapse recording a video signal on a magnetic tape at predetermined time intervals. The audio signal recording/reproducing system comprises a memory which stores an audio signal and time-compresses the stored audio signal to output it as the time-compressed audio signal at one field period, and a magnetic head for recording the one-field period audio signal on the magnetic tape. Each of the audio signal recording tracks recorded on the magnetic tape is arranged between two adjacent video signal recording tracks. The audio signal recorded on the magnetic tape is read out by the magnetic head and stored in the memory again. The audio signal stored in the memory is expanded in its time-base to be reproduced as continuous sound.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: April 4, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Nobuo Azuma, Masaru Takahashi, Akira Shibata, Katsumi Mikamo
  • Patent number: 4633335
    Abstract: In a magnetic recording system for recording frequency modulated video signals on a magnetic tape field by field at intervals of a predetermined time by a plurality of rotary video heads, during each recording period the rotation speed of the rotary video heads is made different from the steady-state rotation speed and the video signals are recorded thereby making the period of each field of the recorded video signals an integral multiple of the horizontal scanning period.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: December 30, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Makoto Yamamoto, Takashi Kubota, Katsumi Mikamo