G11B 27/321
Used signal consists of two 180-degr. phase shifted signals of the same
Official title: {used signal consists of two 180-degr. phase shifted signals of the same frequency}
G11B27/321 (Used signal consists of two 180-degr. phase shifted signals of the same) appears on 8 US grants and 3 published applications in this corpus.
Search patents in G11B- Granted patents
- 8
- Published applications
- 3
- Assignees
- 6
- Inventors
- 15
- Latest grant
- 9 May 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for identifying a mover on a track9 May 2023US 11,643,281 B2Rockwell Automation Technologies, Inc.
- Method and apparatus for identifying a mover on a closed track2 Feb 2021US 10,906,748 B2Rockwell Automation Technologies, Inc.
- System and method for tracking a moving element in a conveyor system21 Mar 2017US 9,600,851 B2ATS Automation Tooling Systems Inc.
- Magnetic tape and a method for recording and reproducing a plurality of different information signals on and from the magnetic tape24 Oct 2000US 6,137,648 AVictor Company of Japan, Ltd.
- High fidelity reproduction device for cinema sound12 Sep 1995US 5,450,146 ADigital Theater Systems, Inc.
- Method and Apparatus for Identifying a Mover on a Track13 May 2021US 2021/0139251 A1Rockwell Automation Technologies, Inc.
- Method and Apparatus for Identifying a Mover on a Closed Track14 Feb 2019US 2019/0047794 A1Rockwell Automation Technologies, Inc.
- System and method for tracking a moving element in a conveyor system29 Jan 2015US 2015/0028098 A1ATS Automation Tooling Systems Inc.
Most cited
By later US patents
- High fidelity reproduction device for cinema sound29US 5,450,146 ADigital Theater Systems, Inc. · 1995
- Voice logging recorder including decks dedicated for both logging and recall operations10US 4,012,784 AMinnesota Mining and Manufacturing Company · 1977
- Magnetic tape and a method for recording and reproducing a plurality of different information signals on and from the magnetic tape10US 6,137,648 AVictor Company of Japan, Ltd. · 2000
- Multitrack recorder including superimposed real time code9US 4,194,222 AMinnesota Mining and Manufacturing Company · 1980
- Method and apparatus for identifying a mover on a closed track3US 10,906,748 B2Rockwell Automation Technologies, Inc. · 2021