Patents by Inventor Syoji Tominaga

Syoji Tominaga 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: 5121385
    Abstract: The period of a sound-existence/sound-silence of a speech signal is detected. Packet data is inserted in a speech time slot during the period of non-existence of sound in the speech signal. A time slot is also given to the non-speech data requiring a quick response in transmission so that the non-speech data is multiplexed with the speech signal for transmission. Data-non-existence of non-speech data is detected when the non-speech data does not exist and then the packet data is inserted into a time slot of the non-speech data for transmission.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: June 9, 1992
    Assignee: Fujitsu Limited
    Inventors: Syoji Tominaga, Yukihiro Ando, Takao Matsuda, Takashi Sato, Koji Maruyama