DE2965846D1 - Programmable digital tone detector - Google Patents

Programmable digital tone detector

Info

Publication number: DE2965846D1
Authority: DE; Germany
Prior art keywords: programmable digital; tone detector; digital tone; detector; programmable
Prior art date: 1978-08-10
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

Application number

DE7979301327T

Other languages

English (en)

Inventor

Jr Charles Alphonsus Backof

David Stanley Robins

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Motorola Solutions Inc

Original Assignee

Motorola Inc

Priority date (The priority date 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 date listed.)

1978-08-10

Filing date

1979-07-09

Publication date

1983-08-18

1979-07-09 Application filed by Motorola Inc filed Critical Motorola Inc

1983-08-18 Application granted granted Critical

1983-08-18 Publication of DE2965846D1 publication Critical patent/DE2965846D1/de

Status Expired legal-status Critical Current

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

DE7979301327T 1978-08-10 1979-07-09 Programmable digital tone detector Expired DE2965846D1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/932,734 US4216463A (en)	1978-08-10	1978-08-10	Programmable digital tone detector

Publications (1)

Publication Number	Publication Date
DE2965846D1 true DE2965846D1 (en)	1983-08-18

Family

ID=25462820

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE7979301327T Expired DE2965846D1 (en)	1978-08-10	1979-07-09	Programmable digital tone detector

Country Status (14)

Country	Link
US (1)	US4216463A (de)
EP (1)	EP0008160B1 (de)
JP (1)	JPS6026464B2 (de)
AR (1)	AR228844A1 (de)
AU (1)	AU518449B2 (de)
BR (1)	BR7905094A (de)
CA (1)	CA1126865A (de)
DE (1)	DE2965846D1 (de)
HK (1)	HK21388A (de)
IL (1)	IL57774A (de)
MX (1)	MX147569A (de)
MY (1)	MY8700014A (de)
SG (1)	SG60986G (de)
ZA (1)	ZA793275B (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4351032A (en) *	1978-12-04	1982-09-21	General Electric Company	Frequency sensing circuit
JPS5693079A (en) *	1979-12-27	1981-07-28	Iwatsu Electric Co Ltd	Measurement of time duration
US4333150A (en) *	1980-01-28	1982-06-01	Westinghouse Electric Corp.	Signal receiving apparatus and method
US4302817A (en) *	1980-02-14	1981-11-24	Motorola, Inc.	Digital Pseudo continuous tone detector
US4326261A (en) *	1980-06-23	1982-04-20	Peoples John T	Single tone detector
DE3040380C2 (de) *	1980-10-25	1983-11-17	Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg	Anordnung zur Frequenzerkennung
US4405837A (en) *	1980-12-22	1983-09-20	Motorola, Inc.	Tone detector circuit
US4389643A (en) *	1981-10-05	1983-06-21	Edison Control Corporation	Multiplexed pulse tone signal receiving apparatus
US4534041A (en) *	1982-02-12	1985-08-06	Northern Telecom Limited	Digital circuit for determining the envelope frequency of PCM encoded call progress tones in a telephone system
US4590583A (en) *	1982-07-16	1986-05-20	At&T Bell Laboratories	Coin telephone measurement circuitry
US4455617A (en) *	1982-08-30	1984-06-19	Motorola, Inc.	Multiple simultaneous tone decoder
JPS5948660A (ja) *	1982-09-13	1984-03-19	Advantest Corp	周波数及び周期測定装置
US4513385A (en) *	1983-01-31	1985-04-23	Motorola, Inc.	Apparatus and method for suppressing side lobe response in a digitally sampled system
US4794556A (en) *	1984-09-19	1988-12-27	Massachusetts Institute Of Technology	Method and apparatus for sampling in-phase and quadrature components
DE3505950A1 (de) *	1985-02-21	1986-08-21	Deutsche Itt Industries Gmbh, 7800 Freiburg	Integrierbare schaltungsanordnung zur identifizierung eines pilottones
DE3521610A1 (de) *	1985-06-15	1986-12-18	Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn	Geraet zum erkennen relativer extrema
US4622481A (en) *	1985-08-21	1986-11-11	Rca Corporation	Digital envelope detection circuit
US4760536A (en) *	1985-12-06	1988-07-26	Curtis Jerald C	Autoranging frequency sensor
JPS63292813A (ja) *	1987-05-26	1988-11-30	Toshiba Corp	多入力ディジタルフィルタ
US4914600A (en) *	1987-06-05	1990-04-03	Gruman Aerospace Corporation	Programmable frequency identifier circuit
US4769610A (en) *	1987-06-29	1988-09-06	Motorola, Inc.	Tone decoder
US4786861A (en) *	1987-09-01	1988-11-22	Sundstrand Data Control, Inc.	Frequency counting apparatus and method
US5274579A (en) *	1990-01-02	1993-12-28	Motorola, Inc.	Digital tone detector
EP0658838B1 (de) *	1993-12-15	2000-04-12	Trt Lucent Technologies	Frequenzsynthetisierer
US5583785A (en) *	1993-12-28	1996-12-10	Talkie Tooter, Inc.	Method and apparatus for signal decoder using instantaneous magnitude and phase detection
EP0770310B1 (de) *	1995-04-18	2003-08-27	Koninklijke Philips Electronics N.V.	Übertragungssystem mit verbesserter tonerkennung
EP0770311B1 (de) *	1995-04-18	2003-08-27	Koninklijke Philips Electronics N.V.	Übertragungssystem mit verbesserter tonerkennung
TW484121B (en) *	2000-01-28	2002-04-21	Via Tech Inc	Phase comparison device and method
US20030123574A1 (en) *	2001-12-31	2003-07-03	Simeon Richard Corpuz	System and method for robust tone detection

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE788813A (fr) *	1971-09-14	1973-03-14	Siemens Ag	Recepteur de signaux selectif en frequence et protege contre les signaux vocaux pour des installations de telecommunications, notamment des installations de telephonie
US3922670A (en) *	1972-04-03	1975-11-25	Bendix Corp	Digital system providing signals representative of frequency variations from a nominal frequency
US3760269A (en) *	1972-07-31	1973-09-18	Gte Automatic Electric Lab Inc	Multi-frequency tone detector
US3845399A (en) *	1973-08-30	1974-10-29	Sperry Rand Corp	Digital detector of an analog signal
GB1482629A (en) *	1973-09-11	1977-08-10	Trend Communications Ltd	Tone detectors
US3935437A (en) *	1974-02-25	1976-01-27	Sanders Associates, Inc.	Signal processor
US4004236A (en) *	1975-07-29	1977-01-18	Sperry Rand Corporation	Programmable bandpass digital filter of analog signal
US3997847A (en) *	1975-10-29	1976-12-14	Bell Telephone Laboratories, Incorporated	Digital demodulator for differentially encoded phase-shift-keyed data
FR2333247A1 (fr) *	1975-11-25	1977-06-24	Thomson Csf	Circuit de comparaison de frequences et dispositif de selection comportant un tel circuit
US4019149A (en) *	1976-01-16	1977-04-19	Bell Telephone Laboratories, Incorporated	Correlative data demodulator
US4016371A (en) *	1976-01-26	1977-04-05	Rockwell International Corporation	Frequency tone detection
US4071821A (en) *	1976-04-28	1978-01-31	Honeywell Inc.	Quadrature correlation phase determining apparatus
US4027266A (en) *	1976-06-10	1977-05-31	International Telephone And Telegraph Corporation	Digital FSK demodulator
NL178469C (nl) *	1976-07-06	1986-03-17	Philips Nv	Niet-recursief discreet filter.
US4047114A (en) *	1976-08-06	1977-09-06	The United States Of America As Represented By The Secretary Of The Army	Digital detector
US4059806A (en) *	1976-11-15	1977-11-22	The Singer Company	Pulse position demodulator circuit
DE2723570C3 (de) *	1977-05-25	1980-09-04	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Signalempfänger

1978
- 1978-08-10 US US05/932,734 patent/US4216463A/en not_active Expired - Lifetime
1979
- 1979-07-02 ZA ZA793275A patent/ZA793275B/xx unknown
- 1979-07-06 AU AU48734/79A patent/AU518449B2/en not_active Ceased
- 1979-07-09 DE DE7979301327T patent/DE2965846D1/de not_active Expired
- 1979-07-09 EP EP79301327A patent/EP0008160B1/de not_active Expired
- 1979-07-11 IL IL57774A patent/IL57774A/xx unknown
- 1979-07-26 AR AR277487A patent/AR228844A1/es active
- 1979-08-01 CA CA332,985A patent/CA1126865A/en not_active Expired
- 1979-08-08 BR BR7905094A patent/BR7905094A/pt unknown
- 1979-08-09 JP JP54101784A patent/JPS6026464B2/ja not_active Expired
- 1979-08-10 MX MX178873A patent/MX147569A/es unknown
1986
- 1986-07-11 SG SG609/86A patent/SG60986G/en unknown
1987
- 1987-12-30 MY MY14/87A patent/MY8700014A/xx unknown
1988
- 1988-03-24 HK HK213/88A patent/HK21388A/xx unknown

Also Published As

Publication number	Publication date
AU4873479A (en)	1980-02-14
BR7905094A (pt)	1980-05-06
HK21388A (en)	1988-03-31
ZA793275B (en)	1980-09-24
EP0008160A1 (de)	1980-02-20
MY8700014A (en)	1987-12-31
IL57774A0 (en)	1979-11-30
AU518449B2 (en)	1981-10-01
AR228844A1 (es)	1983-04-29
MX147569A (es)	1982-12-14
SG60986G (en)	1987-03-27
US4216463A (en)	1980-08-05
JPS5527997A (en)	1980-02-28
IL57774A (en)	1981-12-31
CA1126865A (en)	1982-06-29
JPS6026464B2 (ja)	1985-06-24
EP0008160B1 (de)	1983-07-13

Legal Events

Date	Code	Title	Description
1996-07-11	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE2965846D1 (en)	1983-08-18	Programmable digital tone detector
JPS5412203A (en)	1979-01-29	Digital modem
DE2962957D1 (en)	1982-07-15	Digital signal detector
JPS5582354A (en)	1980-06-21	Digital multiplier
GB2039180B (en)	1983-07-20	Digital phase detector
DE2967106D1 (en)	1984-08-16	Digital phase comparing apparatus
GB2027297B (en)	1982-08-25	Digital frequency discriminator
GB2021903B (en)	1982-09-15	Digital transultiplexer
GB2014817B (en)	1982-03-24	Digital filters
GB2012513B (en)	1982-03-24	Digital filter arrangement
GB2017447B (en)	1982-08-04	Delay line digital code detector
JPS5532199A (en)	1980-03-06	Digital processor
JPS54109737A (en)	1979-08-28	Digital processor
GB2045033B (en)	1983-03-23	Digital message detector
JPS55143654A (en)	1980-11-10	Digital processor
JPS54118761A (en)	1979-09-14	Digital linealizer
JPS5549799A (en)	1980-04-10	Digital position detector
GB2018068B (en)	1982-06-23	Digital tuning apparatus
JPS5297279A (en)	1977-08-15	Digital hemadynamometer
JPS54135579A (en)	1979-10-20	Digital frequency discriminator
JPS5294686A (en)	1977-08-09	Digital hemadynamometer
JPS5294685A (en)	1977-08-09	Digital hemadynamometer
JPS54118762A (en)	1979-09-14	Digital linealizer
JPS5297278A (en)	1977-08-15	Digital hemadynamometer
JPS54157061A (en)	1979-12-11	Digital filter