Patents by Inventor Minoru Kohda

Minoru Kohda 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: 4426666
    Abstract: A video signal recording/reproducing apparatus has two main rotary heads, two sub-rotary heads, and a recorded video tape. One main rotary head M1 has a +6.degree. azimuth angle and one sub-rotary head S1 has a -6.degree. azimuth angle. The sub-rotary head S1 is mounted near the main rotary head M1. For example, the distance between the main rotary head M1 and the sub-rotary head S1 corresponds to two horizontal sync signal intervals of a video signal. Main rotary head M2 has a -6.degree. azimuth angle and sub-rotary head S2 has a +6.degree. azimuth angle. The distance between the main rotary head M2 and the sub-rotary head S2 is the same as that between M1 and S1. The main rotary head M2 is located at a position opposite to the main rotary head M1 on a rotary head disk. In the fast motion reproduction mode, the main rotary head M1 and the sub-rotary head S1 scan recorded video tracks on the video tape. The reproduced signal of the main rotary head M1 has several lower or zero level positions in one field.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: January 17, 1984
    Assignees: Matsushita Electric Industrial Co., Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaaki Kobayashi, Minoru Kohda