Patents by Inventor Masaru Tonozuka

Masaru Tonozuka 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).

  • Image display control device for restricting display of video data viewed on a television in accordance with a restrict level of the video data
    Patent number: 6263500
    Abstract: For the display of certain video scenes, in a case when first restrict data has a stricter restrict level than second restrict data, an on-screen circuit (5) operating in accordance with the output of a comparator (3) alters the display on the TV screen (6) to a single predetermined color, cutting out the video scene. Alternatively, in the case when first restrict data has a more lenient restrict level than second restrict data, the on-screen circuit (5) operating in accordance with the output of a comparator (3) displays the video scene unaltered. Furthermore, the extent of the difference between restrict levels of first and second restrict data can be checked on the TV screen (6) by means of data set in attribute register (9), making it possible to prevent overly deviant restrict level settings.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: July 17, 2001
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takeshi Yoshida, Masaru Tonozuka
  • Image display control device for restricting display of video data viewed on a television in accordance with a restrict level of the video data
    Patent number: 6137486
    Abstract: For the display of certain video scenes, in a case when first restrict data has a stricter restrict level than second restrict data, an on-screen circuit (5) operating in accordance with the output of a comparator (3) alters the display on the TV screen (6) to a single predetermined color, cutting out the video scene. Alternatively, in the case when first restrict data has a more lenient restrict level than second restrict data, the on-screen circuit (5) operating in accordance with the output of a comparator (3) displays the video scene unaltered. Furthermore, the extent of the difference between restrict levels of first and second restrict data can be checked on the TV screen (6) by means of data set in attribute register (9), making it possible to prevent overly deviant restrict level settings.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: October 24, 2000
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takeshi Yoshida, Masaru Tonozuka
  • Channel display device for receivable channels
    Patent number: 5299010
    Abstract: A channel display device in which a channel number which is receiving discrimination is flashed while a list of all channel numbers is displayed on a television screen. Also, a display color of the channel number discriminated as being in a receiving state is changed. Thus, a receivable channel from within a number of channels can be readily confirmed.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: March 29, 1994
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Tsutomu Nakazawa, Hiroyasu Shindou, Masaru Tonozuka