G04R 40/02
Correcting the clock frequency: by phase locking
Official title: by phase locking
G04R40/02 (Correcting the clock frequency: by phase locking) appears on 15 US grants and 6 published applications in this corpus.
Search patents in G04R- Granted patents
- 15
- Published applications
- 6
- Assignees
- 11
- Inventors
- 24
- Latest grant
- 31 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electronic watch and method of correcting time difference31 Jan 2023US 11,567,458 B2Seiko Epson Corporation
- Phase clock performance improvement for a system embedded with GNSS receiver12 Apr 2022US 11,300,688 B2Ciena Corporation
- Timing signal generation device, electronic device, and moving object4 Jun 2019US 10,312,924 B2Seiko Epson Corporation
- Timing signal generating device, electronic apparatus, moving object, method of generating timing signals, and method of controlling satellite signal receiver24 Apr 2018US 9,952,562 B2Seiko Epson Corporation
- Self-calibrating time code generator8 Jul 2008US 7,398,411 B2Schweitzer Engineering Laboratories, Inc.
- Phase clock performance improvement for a system embedded with GNSS receiver26 Aug 2021US 2021/0266086 A1Ciena Corporation
- Electronic Watch And Method Of Correcting Time Difference25 Jun 2020US 2020/0201264 A1Seiko Epson Corporation
- Timing signal generation device, electronic device, and moving object22 Jun 2017US 2017/0179967 A1Seiko Epson Corporation
- Timing signal generating device, electronic apparatus, moving object, method of generating timing signals, and method of controlling satellite signal receiver24 Jul 2014US 2014/0203963 A1Seiko Epson Corporation
- Timepiece and Time Correction Method for a Timepiece7 Feb 2008US 2008/0031095 A1Seiko Epson Corporation
Most cited
By later US patents
- System and method for synchronizing clocks in a plurality of devices across a communication channel89US 6,236,623 B1Moore Industries · 2001
- Self-calibrating time code generator36US 7,398,411 B2Schweitzer Engineering Laboratories, Inc. · 2008
- Frequency standard generator synchronized with satellite or other communication network reference clocks30US 5,629,649 AAdvantest Corporation · 1997
- Satellite controlled digital clock system24US 4,014,166 AThe United States of America as represented by the Secretary of Commerce · 1977
- Standard frequency and timing generator and generation method thereof24US 6,081,163 AAdvantest Corporation · 2000