Patents by Inventor Yashuhiro Iida

Yashuhiro Iida 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).

  • Acoustic signal reproducing apparatus
    Patent number: 5181248
    Abstract: An acoustic signal reproducing apparatus for reproducing acoustic signals through headphone devices is disclosed. The left channel and right channel acoustic signals are provided by a device for processing the transmission characteristics with constant transmission characteristics representing the location of an imaginary sound source relative to both of the listener's ears. The left channel and right channel acoustic signals, processed in this manner by the device for processing the transmission characteristics, are provided by an acoustic signal processing device with a level difference and a time difference consistent with changes in orientation of the user's head. In this manner, optimum binaural reproduction with respect to the imaginary sound source may be achieved.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: January 19, 1993
    Assignee: Sony Corporation
    Inventors: Kiyofumi Inanaga, Yashuhiro Iida, Hiroyuki Sogawa, Susumu Yabe