Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819765 | Video-signal output apparatus, video-signal input apparatus, and scramble method, and descramble method | — | 2004-11-16 |
| 6781935 | Method for limited recording of an information signal, system for controlled recording of an information signal, and information signal recording apparatus | Masaya Otsuka | 2004-08-24 |
| 6687802 | Outputting apparatus, outputting method, recording apparatus, recording method, reproduction apparatus, reproduction method and recording medium | Masaya Otsuka | 2004-02-03 |
| 6526510 | Signal reproducing method and apparatus, signal recording method and apparatus and signal recording system | Tadashi Ezaki, Akira Ogino, Yuji Kimura | 2003-02-25 |
| 6480607 | Encrypted data reproducing transmitting and processing method and apparatus with separately encrypted control data | Tadashi Ezaki, Akira Ogino, Yuji Kimura | 2002-11-12 |
| 6327109 | Method for reproducing information from media which incorporate separate memory circuits | Harumi Kawamura, Hisato Shima, Kazuyuki Ogawa | 2001-12-04 |
| 6263506 | Data transmission and reception device and system, data transmission method and parameter setting method for data reception device | Tadashi Ezaki, Jun Hirai | 2001-07-17 |
| 6212325 | Method and apparatus for processing video signal and storage medium | — | 2001-04-03 |
| 6035094 | Video signal processing apparatus and method for securing a copy protection effect, an apparatus for recording/reproducing the processed video signal and a record medium therefor | — | 2000-03-07 |
| 5991500 | Copy control for a video signal with copyright signals superimposed as predetermined bits in the VBID data of the video signal | Keiji Kanota, Tadashi Ezaki, Satoshi Tsuchiya | 1999-11-23 |
| 5914754 | Video signal aspect ratio conversion apparatus | Tadashi Ezaki, Jun Hirai | 1999-06-22 |
| 5899580 | Method and apparatus for reducing a tracking displacement between a previously recorded area and a postrecorded area of a slant track | Ken Iizuka, Masaki Oguro | 1999-05-04 |
| 5883959 | Video copy protection | — | 1999-03-16 |
| 5852471 | Television multiplex data extracting apparatus | Miki Furuya, Tadashi Ezaki, Satoshi Tsuchiya | 1998-12-22 |
| 5852528 | Video information recording method which uses a comparison of event information in two recorded information packets | Masaki Oguro, Ken Iizuka | 1998-12-22 |
| 5786955 | Recording medium cartridge with memory circuit for storing directory information including images | Harumi Kawamura, Hisato Shima, Kazuyuki Ogawa | 1998-07-28 |
| 5778064 | Apparatus and method for processing a high definition video signal | Tadashi Ezaki | 1998-07-07 |
| 5712947 | Method of recording ID signals for retrieving images, method of retrieving images, and apparatus for reproducing recorded images | Masaki Oguro, Ken Iizuka | 1998-01-27 |
| 5598219 | Data extracting apparatus for validating data multiplexed in a video signal | Miki Furuya, Tadashi Ezaki, Satoshi Tsuchiya | 1997-01-28 |
| 5587849 | Mechanism for securing recorded contents of recording medium cassette | Hiroshi Yamazaki, Harumi Kawamura, Hisato Shima, Kazuyuki Ogawa | 1996-12-24 |
| 5541737 | Apparatus and method for recording and reproducing a digital video and audio signal | Masaki Oguro, Hiroshi Yoshioka, Ken Iizuki | 1996-07-30 |
| 5513010 | Digital video signal recording and reproducing apparatus that records and reproduces both still and moving pictures | Ken Iizuka, Masaki Oguro | 1996-04-30 |
| 5355262 | Magnetic recording apparatus having an adjustable rotary head | Hiroshi Yamazaki, Sakae Okazaki, Hajime Watanabe, Satoshi Tsuchiya, Miki Furuya | 1994-10-11 |
| 5280394 | Recording/reproducing apparatus for determining the mode of a recorded digital audio signal by detecting different clock frequencies at selected times | Noboru Murabayashi | 1994-01-18 |
| 5168363 | Video signal parocessing apparatus with memory and crossfader | Masaaki Kojima, Kazuo Yoshino, Takao Takahashi, Koji Iijima | 1992-12-01 |