G04R 20/20
The radio signal being an am/fm standard signal
Official title: the radio signal being an AM/FM standard signal, e.g. RDS
G04R20/20 (The radio signal being an am/fm standard signal) appears on 28 US grants and 16 published applications in this corpus.
Search patents in G04R- Granted patents
- 28
- Published applications
- 16
- Assignees
- 23
- Inventors
- 66
- Latest grant
- 26 Jul 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 2 |
| 2006 | 2 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 5 |
| 2011 | 0 | 2 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Electronic timepiece, processing selection method, and storage medium26 Jul 2022US 11,397,411 B2Casio Computer Co., Ltd.
- Electronic timepiece and control method of electronic timepiece5 Nov 2019US 10,466,655 B1Seiko Epson Corporation
- Circuit for a radio system, use and method for operation19 May 2015US 9,036,754 B2Atmel Corporation
- Television broadcast program recording system11 Jun 2013US 8,463,111 B2Funai Electric Co., Ltd.
- Circuit for a radio system, use and method for operation25 Dec 2012US 8,340,236 B2Atmel Corporation
- Electronic timepiece, processing selection method, and storage medium7 Mar 2019US 2019/0072914 A1Casio Computer Co., Ltd.
- Circuit for a Radio System, Use and Method for Operation16 May 2013US 2013/0124587 A1Atmel Corporation
- Television Broadcast Program Recording System22 Dec 2011US 2011/0311203 A1Funai Electric Co., Ltd.
- Remote automatic setting of clock radio3 Mar 2011US 2011/0051560 A1
- Broadcast Receiving System and Control Method Therefor2 Sep 2010US 2010/0220241 A1
Most cited
By later US patents
- Watch pager system and communication protocol319US 4,713,808 AA T & E Corporation · 1987
- High capacity protocol with multistation capability161US 4,897,835 AAT&E Corporation · 1990
- Watch pager and wrist antenna117US 5,159,713 ASeiko Corp. · 1992
- Radio signal data transmission synchronization49US 5,189,411 ASeiko Corp. · 1993
- Paging and time keeping system with transmission of time slot identification used for synchronization41US 5,168,271 ASeiko Corp. · 1992