Patents by Inventor Isao Tagaya

Isao Tagaya 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).

  • Publication number: 20040212561
    Abstract: Disclosed here is a method for improving drivability and reduce power consumption in such a display device as a plasma display device. An address electrode driving circuit provided in a plasma display panel display device includes a driving pulse generation circuit, as well as a plurality of address electrode driving parts. In each of the address electrode driving parts, a latch latches a preceding pulse output from another latch, then inputs the pulse to an exclusive OR circuit together with a new pulse output from the other latch. A NAND-circuit outputs a drive pulse/ACL only when those pulses change. Consequently, when a shift register outputs signals without changing a signal level, for example, from a High signal to a High signal or from a Low signal to a Low signal, no drive pulse/ACL is output, thereby wasteful drive current consumption is prevented.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 28, 2004
    Inventors: Katsuhisa Matsuda, Fumihito Hayashi, Isao Tagaya