G11B 20/00297
The key being stored in a management area
Official title: {the key being stored in a management area, e.g. the video manager [VMG] of a DVD}
G11B20/00297 (The key being stored in a management area) appears on 193 US grants and 214 published applications in this corpus.
Search patents in G11B- Granted patents
- 193
- Published applications
- 214
- Assignees
- 31
- Inventors
- 208
- Latest grant
- 16 Jan 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 6 |
| 2002 | 4 | 12 |
| 2003 | 6 | 19 |
| 2004 | 9 | 37 |
| 2005 | 10 | 27 |
| 2006 | 19 | 23 |
| 2007 | 17 | 30 |
| 2008 | 34 | 33 |
| 2009 | 32 | 13 |
| 2010 | 11 | 4 |
| 2011 | 13 | 2 |
| 2012 | 8 | 2 |
| 2013 | 3 | 4 |
| 2014 | 4 | 2 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Protection of content based on encryption16 Jan 2018US 9,871,661 B2Sony Corporation
- Information carrier comprising access information1 Aug 2017US 9,720,622 B2Koninklijke Philips N. V.
- Information processing apparatus, information processing method and program20 Jun 2017US 9,684,772 B2Sony Corporation
- Information processing apparatus, information processing method and program9 Jun 2015US 9,053,739 B2Sony Corporation
- Information recording medium, method and apparatus for recording and reproducing information17 Jun 2014US 8,755,262 B2JVC KENWOOD Corporation
- Information carrier comprising access information29 May 2014US 2014/0149661 A1Koninklijke Philips Electronics N. V.
- Information processing device, information processing method, and program13 Mar 2014US 2014/0075195 A1Sony Corporation
- Information Recording Medium, Method and Apparatus for Recording and Reproducing Information2 May 2013US 2013/0107682 A1Victor Company of Japan, Ltd.
- Information carrier comprising access information25 Apr 2013US 2013/0100784 A1Koninklijke Philips Electronics N. V.
- Information processing apparatus, information processing method and program21 Mar 2013US 2013/0073866 A1Sony Corporation
Most cited
By later US patents
- Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system144US 6,938,162 B1Matsushita Electric Industrial Co., Ltd. · 2005
- Motion picture data encrypting method and computer system and motion picture data encoding/decoding apparatus to which encrypting method is applied117US 6,021,199 AKabushiki Kaisha Toshiba · 2000
- Method and apparatus for preventing illegal copy or illegal installation of information of optical recording medium105US 5,881,038 AMatsushita Electric Industrial Co., Ltd. · 1999
- Recording and reproducing apparatus101US 5,473,584 AMatsushita Electric Industrial Co., Ltd. · 1995
- Information recording media and optical disc presenting a character or a graphic pattern formed by specified pit patterns on data tracks100US 5,608,717 AHitachi, Ltd. · 1997