DE60223334D1 - Verbesserungen in Beziehung zur Detektion eines Zweitonmehrfrequenzsignales - Google Patents
Verbesserungen in Beziehung zur Detektion eines ZweitonmehrfrequenzsignalesInfo
- Publication number
- DE60223334D1 DE60223334D1 DE60223334T DE60223334T DE60223334D1 DE 60223334 D1 DE60223334 D1 DE 60223334D1 DE 60223334 T DE60223334 T DE 60223334T DE 60223334 T DE60223334 T DE 60223334T DE 60223334 D1 DE60223334 D1 DE 60223334D1
- Authority
- DE
- Germany
- Prior art keywords
- detection
- dtmf
- tone multi
- software
- telecommunications systems
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
- H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02354026A EP1335614B1 (de) | 2002-02-08 | 2002-02-08 | Verbesserungen in Beziehung zur Detektion eines Zweitonmehrfrequenzsignales |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60223334D1 true DE60223334D1 (de) | 2007-12-20 |
DE60223334T2 DE60223334T2 (de) | 2008-07-10 |
Family
ID=27589185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60223334T Expired - Lifetime DE60223334T2 (de) | 2002-02-08 | 2002-02-08 | Verbesserungen in Beziehung zur Detektion eines Zweitonmehrfrequenzsignales |
Country Status (4)
Country | Link |
---|---|
US (1) | US7184542B2 (de) |
EP (1) | EP1335614B1 (de) |
AT (1) | ATE377911T1 (de) |
DE (1) | DE60223334T2 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050058273A1 (en) * | 2003-09-11 | 2005-03-17 | Lam Siu H. | Methods and apparatus for detecting signaling tones in telephony data signal |
US7715447B2 (en) | 2003-12-23 | 2010-05-11 | Intel Corporation | Method and system for tone detection |
JP4862262B2 (ja) * | 2005-02-14 | 2012-01-25 | 日本電気株式会社 | Dtmf信号処理方法、処理装置、中継装置、及び通信端末装置 |
TWI393453B (zh) * | 2008-10-06 | 2013-04-11 | Sonix Technology Co Ltd | 適用於自動控制裝置的音調偵測方法及音調偵測裝置 |
US8260280B2 (en) * | 2010-01-25 | 2012-09-04 | Research In Motion Limited | System and method for the synchronized transmission of tone sequences |
US10268530B2 (en) | 2013-05-08 | 2019-04-23 | Cellcontrol, Inc. | Managing functions on an iOS-based mobile device using ANCS notifications |
US10477454B2 (en) | 2013-05-08 | 2019-11-12 | Cellcontrol, Inc. | Managing iOS-based mobile communication devices by creative use of CallKit API protocols |
CA3188150A1 (en) * | 2013-05-08 | 2014-11-13 | Cellcontrol, Inc. | Driver identification and data collection systems for use with mobile communication devices in vehicles |
US10805861B2 (en) | 2013-05-08 | 2020-10-13 | Cellcontrol, Inc. | Context-aware mobile device management |
US11751123B2 (en) | 2013-05-08 | 2023-09-05 | Cellcontrol, Inc. | Context-aware mobile device management |
US10271265B2 (en) | 2013-05-08 | 2019-04-23 | Cellcontrol, Inc. | Detecting mobile devices within a vehicle based on cellular data detected within the vehicle |
US11178272B2 (en) | 2017-08-14 | 2021-11-16 | Cellcontrol, Inc. | Systems, methods, and devices for enforcing do not disturb functionality on mobile devices |
CN111724783B (zh) * | 2020-06-24 | 2023-10-17 | 北京小米移动软件有限公司 | 智能设备的唤醒方法、装置、智能设备及介质 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4689760A (en) * | 1984-11-09 | 1987-08-25 | Digital Sound Corporation | Digital tone decoder and method of decoding tones using linear prediction coding |
CA1289281C (en) * | 1988-05-05 | 1991-09-17 | Jerry Stroobach | Digital dtmf tone detector |
US5477465A (en) * | 1993-08-31 | 1995-12-19 | Talx Corporation | Multi-frequency receiver with arbitrary center frequencies |
US5644634A (en) * | 1995-11-29 | 1997-07-01 | Advanced Micro Devices | System and method for dual tone multifrequency detection using variable frame widths |
US5809133A (en) * | 1996-05-24 | 1998-09-15 | Advanced Micro Devices, Inc. | DTMF detector system and method which performs frequency domain energy calculations with improved performance |
US6763106B1 (en) * | 1998-11-19 | 2004-07-13 | Legerity Inc. | Signal detector with duration-based frame width |
US6771767B1 (en) * | 1999-01-05 | 2004-08-03 | Legerity, Inc. | Signal detector with coefficient swapping transform unit |
US6229889B1 (en) * | 1999-04-05 | 2001-05-08 | Agere Systems Guardian Corp. | Robust signaling tone frequency measurement |
US6850616B2 (en) * | 2001-01-22 | 2005-02-01 | Cirrus Logic, Inc. | Frequency error detection methods and systems using the same |
-
2002
- 2002-02-08 EP EP02354026A patent/EP1335614B1/de not_active Expired - Lifetime
- 2002-02-08 AT AT02354026T patent/ATE377911T1/de not_active IP Right Cessation
- 2002-02-08 DE DE60223334T patent/DE60223334T2/de not_active Expired - Lifetime
-
2003
- 2003-02-07 US US10/359,628 patent/US7184542B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE60223334T2 (de) | 2008-07-10 |
US20030235291A1 (en) | 2003-12-25 |
EP1335614A1 (de) | 2003-08-13 |
EP1335614B1 (de) | 2007-11-07 |
ATE377911T1 (de) | 2007-11-15 |
US7184542B2 (en) | 2007-02-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8327 | Change in the person/name/address of the patent owner |
Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, US |
|
8364 | No opposition during term of opposition |