Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7844991 | Method and apparatus for digital signal processing | Masashi Nakamura, Sunao Furui, Ichiro Hamada | 2010-11-30 |
| 7096461 | Method and apparatus for digital signal processing and method of providing extension function | Masashi Nakamura, Sunao Furui, Ichiro Hamada | 2006-08-22 |
| 7023991 | Method and apparatus for digital signal processing | Masashi Nakamura, Sunao Furui, Ichiro Hamada | 2006-04-04 |
| 6954472 | Method and device of superimposing an additional information signal on a video signal and detecting said additional information from said video signal | Akira Ogino, Nozomu Ikeda, Yuji Kimura, Takashi Kohashi | 2005-10-11 |
| 6782191 | Additional information superposing method, information signal copy control method, information signal output device and information signal recording device | Nozomu Ikeda, Akira Ogino | 2004-08-24 |
| 6779198 | Data processing apparatus, data processing method, and recording medium | Takeo Morinaga, Iwao Yamamoto, Hajime Inoue, Noriyuki Yamamoto, Koichi Oyama +1 more | 2004-08-17 |
| 6636551 | ADDITIONAL INFORMATION TRANSMISSION METHOD, ADDITIONAL INFORMATION TRANSMISSION SYSTEM, INFORMATION SIGNAL OUTPUT APPARATUS, INFORMATION SIGNAL PROCESSING APPARATUS, INFORMATION SIGNAL RECORDING APPARATUS AND INFORMATION SIGNAL RECORDING MEDIUM | Nozomu Ikeda, Akira Ogino, Takashi Kohashi, Yuji Kimura | 2003-10-21 |
| 6470137 | Method and apparatus for superimposing a level changed spectrum spread additional information signal on a video signal | Nozomu Ikeda, Akira Ogino, Takashi Kohashi, Yuji Kimura | 2002-10-22 |
| 6466617 | Additional information signal superimposing and detecting system, additional information superimposing and detecting method, and additional information signal detecting method and apparatus therefor | Takashi Kohashi, Yuji Kimura, Akira Ogino, Nozomu Ikeda | 2002-10-15 |
| 6359905 | Method and apparatus of detecting spectrum spread signal | Akira Ogino, Yuji Kimura, Takashi Kohashi, Nozomu Ikeda | 2002-03-19 |
| 6359999 | Method of adding information to video signal and information adding device | Takashi Kohashi, Yuji Kimura, Akira Ogino, Nozomu Ikeda | 2002-03-19 |
| 6342924 | Additional information superposition method and video signal outputting apparatus | Nozomu Ikeda, Akira Ogino, Takashi Kohashi, Yuji Kimura | 2002-01-29 |
| 6341141 | Method and apparatus for detecting spectrum spread signals | Takashi Kohashi, Akira Ogino, Yuji Kimura, Nozomu Ikeda | 2002-01-22 |
| 6339449 | Method and device for superimposing additional information on a video signal | Nozomu Ikeda, Akira Ogino, Takashi Kohashi, Yuji Kimura | 2002-01-15 |
| 6295303 | Method and device of superimposing an additional information signal on a video signal and detecting said additional information from said video signal | Akira Ogino, Nozomu Ikeda, Yuji Kimura, Takashi Kohashi | 2001-09-25 |
| 6163565 | Additional information signal superimposing and detecting system additional information signal superimposing and detecting method and additional information signal detecting method and apparatus therefor | Takashi Kohashi, Yuji Kimura, Akira Ogino, Nozomu Ikeda | 2000-12-19 |
| 5778054 | Communication apparatus and method for displaying on a screen a number of images corresponding to respective access information that is operative to initiate electronic communication | Yuji Kimura, Hiroyuki Yasui | 1998-07-07 |
| 4974235 | Method of adaptive quantization in differential pulse code modulation and a system for transmitting quantized data | Takayuki Sasaki, Hideki Fukasawa, Hiromi Takano, Kenzo Akagiri | 1990-11-27 |
| 4816926 | Rotary head digital audio tape recorder with multiple recording modes | Kenji Nakano | 1989-03-28 |
| 4796261 | Error correction apparatus for digital data | — | 1989-01-03 |
| 4766505 | Method and apparatus for recording video and audio signals in successive tracks on a record medium | Kenji Nakano | 1988-08-23 |
| 4748628 | Method and apparatus for correcting errors in digital audio signals | — | 1988-05-31 |
| 4641309 | Method and apparatus for selectively compensating burst errors of variable length in successive digital data words | Kenji Nakano | 1987-02-03 |
| 4583132 | Recording/reproducing apparatus for selectively processing monaural, stereo and bilingual signals | Kenji Nakano, Keiichiro Shimada, Takao Takahashi | 1986-04-15 |
| 4575772 | Apparatus for recording additional video signals in a helical scan operation | Keiichiro Shimada, Takao Takahashi, Kenji Nakano | 1986-03-11 |