Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5897218 | Signal recording/reproducing method and apparatus in which key information for descrambling is recorded in an area on the signal recording medium | Takao Arai | 1999-04-27 |
| 5862004 | Digital transmission signal processing system and recording/reproducing system | Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Yoshizumi Watatani, Akira Shibata | 1999-01-19 |
| 5825969 | Information management apparatus for inhibiting reproduction in a video cassette recorder | Hiroaki Ono, Kiyoshi Kano, Hideo Nishijima, Takao Arai, Takaharu Noguchi +5 more | 1998-10-20 |
| 5757824 | Code error correction apparatus | Hideo Arai, Yasuyuki Inoue | 1998-05-26 |
| 5699203 | Digital transmission signal processing system and recording reproducing system | Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Yoshizumi Watatani, Akira Shibata | 1997-12-16 |
| 5673154 | Digital transmission signal processing system and recording/reproducing system | Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Yoshizumi Watatani, Akira Shibata | 1997-09-30 |
| 5671095 | Digital transmission signal processing system and recording/reproducing system | Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Yoshizumi Watatani, Akira Shibata | 1997-09-23 |
| 5636316 | Picture signal digital processing unit | Masuo Oku, Yukio Fujii, Masaru Takahashi, Kenji Ichige, Atsuo Suga +2 more | 1997-06-03 |
| 5530598 | Digital transmission signal processing system and recording/reproducing system | Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Yoshizumi Watatani, Akira Shibata | 1996-06-25 |
| 5517368 | Digital transmission signal processing system and recording/reproducing system | Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Yoshizumi Watatani, Akira Shibata | 1996-05-14 |
| 5463505 | Helical-scan information recording-playback apparatus | Kouji Kaniwa, Hideo Nishijima, Kouji Fujita | 1995-10-31 |
| 5337199 | Digital transmission signal processing system and recording/reproducing system | Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Yoshizumi Watatani, Akira Shibata | 1994-08-09 |
| 5247523 | Code error correction apparatus | Hideo Arai, Yasuyuki Inoue | 1993-09-21 |
| 5027209 | Interpolation circuit for digital signal processor | Shigemitsu Higuchi, Fuzio Okamura | 1991-06-25 |
| 4907081 | Compression and coding device for video signals | Fujio Okamura, Shigemitsu Higuchi, Takashi Furuhata | 1990-03-06 |
| 4677622 | Error correction method and system | Hiroo Okamoto, Masaharu Kobayashi, Takaharu Noguchi, Takao Arai, Toshifumi Shibuya | 1987-06-30 |
| 4649542 | Digital signal transmission method providing high error correction capability | Masaharu Kobayashi, Hiroo Okamoto, Takaharu Noguchi, Takao Arai, Toshifumi Shibuya | 1987-03-10 |
| 4614934 | Digital-to-analog converter device for processing PCM signals of different sampling frequencies | Masaharu Kobayashi, Takaharu Noguchi, Hiromichi Tanaka, Masami Nishida, Takao Arai | 1986-09-30 |
| 4577319 | Error flag processor | Takashi Takeuchi, Masaharu Kobayashi, Kazumasa Oiso | 1986-03-18 |
| 4541091 | Code error detection and correction method and apparatus | Masami Nishida, Takao Arai, Nobutaka Amada | 1985-09-10 |
| 4539605 | PCM Tape recording and reproducing apparatus having a dropout-immune data recording format | Takashi Hoshino, Takao Arai | 1985-09-03 |
| 4472686 | Circuit for reproducing and demodulating modulated digital signals | Hiroyuki Kimura, Yasunori Kanazawa | 1984-09-18 |
| 4423498 | Control apparatus for a recording medium drive motor in a digital information reproducing apparatus | Hiroyuki Kimura, Shin-ichi Ohashi | 1983-12-27 |
| 4363039 | Automatic operation control apparatus for a PCM recording and reproducing system | Yasunori Kanazawa | 1982-12-07 |
| 4238770 | Vertical synchronizing signal detector circuit | Masaharu Kobayashi, Takao Arai, Takashi Hoshino, Hiroyuki Kimura | 1980-12-09 |