H04Q 2213/13034
A/d conversion, code compression/expansion
Official title: A/D conversion, code compression/expansion
H04Q2213/13034 (A/d conversion, code compression/expansion) appears on 1,146 US grants and 694 published applications in this corpus.
Search patents in H04Q- Granted patents
- 1,146
- Published applications
- 694
- Assignees
- 405
- Inventors
- 1,830
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 14 | 0 |
| 1994 | 16 | 0 |
| 1995 | 19 | 0 |
| 1996 | 34 | 0 |
| 1997 | 35 | 0 |
| 1998 | 56 | 0 |
| 1999 | 68 | 0 |
| 2000 | 51 | 0 |
| 2001 | 86 | 51 |
| 2002 | 93 | 101 |
| 2003 | 59 | 78 |
| 2004 | 56 | 55 |
| 2005 | 36 | 75 |
| 2006 | 76 | 57 |
| 2007 | 49 | 63 |
| 2008 | 46 | 42 |
| 2009 | 42 | 35 |
| 2010 | 44 | 23 |
| 2011 | 40 | 17 |
| 2012 | 35 | 18 |
| 2013 | 43 | 14 |
| 2014 | 33 | 13 |
| 2015 | 20 | 11 |
| 2016 | 21 | 9 |
| 2017 | 13 | 5 |
| 2018 | 8 | 7 |
| 2019 | 6 | 6 |
| 2020 | 5 | 6 |
| 2021 | 4 | 4 |
| 2022 | 3 | 2 |
| 2023 | 4 | 1 |
| 2024 | 2 | 0 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Calling line/name identification of enterprise subscribers in mobile calls23 Sep 2025US 12,425,814 B2Tango Networks, Inc.
- Distributed sensing processing systems14 Jan 2025US 12,200,059 B1Simmonds Precision Products, Inc.
- System and method for executing originating services in a terminating network for IMS and non-IMS applications27 Aug 2024US 12,075,327 B2Tango Networks, Inc.
- Call flow system and method for use in a legacy telecommunication system9 Jan 2024US 11,871,216 B2Tango Networks, Inc.
- Call flow system and method for use in a VoIP telecommunication system19 Dec 2023US 11,849,380 B2Tango Networks, Inc.
- Distributed sensing processing systems9 Jan 2025US 2025/0016229 A1Simmonds Precision Products, Inc.
- Calling line/name identification of enterprise subscribers in mobile calls3 Aug 2023US 2023/0247515 A1Tango Networks, Inc.
- System and method for executing originating services in a terminating network for ims and non-ims applications1 Dec 2022US 2022/0386213 A1Tango Networks, Inc.
- Call flow system and method for use in a legacy telecommunication system24 Nov 2022US 2022/0377642 A1Tango Networks, Inc.
- Provisioning location informationsourced independently from communications network11 Nov 2021US 2021/0352175 A1Onvoy Spectrum, LLC
Most cited
By later US patents
- Unified messaging system and method1,307US 5,608,786 AAlphanet Telecom Inc. · 1997
- PSTN architecture for video-on-demand services963US 5,247,347 ABell Atlantic Network Services, Inc. · 1993
- Video-on-demand services using public switched telephone network900US 5,410,343 ABell Atlantic Network Services, Inc. · 1995
- Message storage and delivery system854US 5,675,507 A1997
- Integrated services platform for telephone communication system555US 5,193,110 ABoston Technology, Inc. · 1993