FI841600A7 - Anordning foer att identifiera digitala flerfrekvenssignaler. - Google Patents

Anordning foer att identifiera digitala flerfrekvenssignaler. Download PDF

Info

Publication number: FI841600A7
Authority: FI; Finland
Prior art keywords: identifiera; flerfrekvenssignaler; digitala; anordning foer; foer att
Prior art date: 1982-04-06

Application number

FI841600A

Other languages

English (en)

Other versions

FI841600A0 (fi

Inventor

Staffan Jaervfaelt

Original Assignee

Ericsson Telefon Ab L M

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.)

1982-04-06

Filing date

1984-04-24

Publication date

1984-04-24

1984-04-24 Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M

1984-04-24 Publication of FI841600A7 publication Critical patent/FI841600A7/fi

1984-04-24 Publication of FI841600A0 publication Critical patent/FI841600A0/fi

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

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Monitoring And Testing Of Transmission In General (AREA)
Noise Elimination (AREA)

FI841600A 1982-04-06 1984-04-24 Anordning foer att identifiera digitala flerfrekvenssignaler. FI841600A0 (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE8202191A SE430554B (sv)	1982-04-06	1982-04-06	Anordning for att identifiera digitala flerfrekvenssignaler
PCT/SE1983/000107 WO1983003732A1 (en)	1982-04-06	1983-03-25	Apparatus for identifying digital multi-frequency signals

Publications (2)

Publication Number	Publication Date
FI841600A7 true FI841600A7 (fi)	1984-04-24
FI841600A0 FI841600A0 (fi)	1984-04-24

Family

ID=20346473

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI841600A FI841600A0 (fi)	1982-04-06	1984-04-24	Anordning foer att identifiera digitala flerfrekvenssignaler.

Country Status (9)

Country	Link
US (1)	US4614909A (fi)
ES (1)	ES521229A0 (fi)
FI (1)	FI841600A0 (fi)
GB (1)	GB2135488B (fi)
IT (1)	IT8320471A0 (fi)
NL (1)	NL8320091A (fi)
NO (1)	NO834469L (fi)
SE (1)	SE430554B (fi)
WO (1)	WO1983003732A1 (fi)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3505950A1 (de) *	1985-02-21	1986-08-21	Deutsche Itt Industries Gmbh, 7800 Freiburg	Integrierbare schaltungsanordnung zur identifizierung eines pilottones
NL8502008A (nl) *	1985-07-12	1987-02-02	Philips Nv	Ontvanginrichting voor het onder bescherming van een stoorsignaal/spraaksignaalbewakingsfunctie herkennen van een aantal verschillende en voorafbepaalde frequentiecombinaties van toonfrequente signaleringscomponenten.
US4759748A (en) *	1986-06-30	1988-07-26	Raychem Corporation	Guiding catheter
DE3629907A1 (de) *	1986-09-03	1988-03-10	Standard Elektrik Lorenz Ag	Signalisierungsempfaenger
US4853958A (en) *	1988-06-02	1989-08-01	Northern Telecom Limited	LPC-based DTMF receiver for secondary signalling
US5193090A (en) *	1988-07-15	1993-03-09	Janusz Filipiak	Access protection and priority control in distributed queueing
DE4032369C1 (fi) *	1990-10-12	1992-01-30	Telenorma Gmbh, 6000 Frankfurt, De
CA2116043C (en) *	1994-02-21	1997-09-23	Alexander F. Tulai	Programmable digital call progress tone detector
US5793306A (en) *	1995-12-29	1998-08-11	Vershinin; Michael	Identification systems employing frequency-based coded information
JPH09243679A (ja) *	1996-03-05	1997-09-19	Takayoshi Hirata	任意区間波形を用いた非調和的周波数分析法
US7317765B2 (en) *	2002-11-26	2008-01-08	The Johns Hopkins University	Signal observation system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3875347A (en) *	1973-10-01	1975-04-01	Gte Automatic Electric Lab Inc	Multifrequency signal receiver
US3935539A (en) *	1974-04-08	1976-01-27	The United States Of America As Represented By The Secretary Of The Navy	A-C signal multiplying circuit by a ratio of whole numbers the numerator of which is greater than one and greater than the denominator
US4142177A (en) *	1976-08-12	1979-02-27	Motorola, Inc.	Digital tone decoder system
US4145660A (en) *	1977-12-23	1979-03-20	Rca Corporation	Frequency activated circuit
US4230991A (en) *	1978-09-11	1980-10-28	Alexandre Paphitis	Digital frequency process and method using frequency shifting techniques, especially for low frequency measurements
JPS5830793B2 (ja) *	1978-10-04	1983-07-01	株式会社日立製作所	多周波信号受信方式
US4334273A (en) *	1979-04-24	1982-06-08	Kokusai Denshin Denwa Co., Ltd.	Signal processing system using a digital technique
NL177552C (nl) *	1979-05-02	1985-10-01	Nederlanden Staat	Inrichting voor het onder gebruikmaking van een digitale correlatiemethode vaststellen van de aanwezigheid van elke van een aantal vaste frequenties in een signaal.
CA1137565A (en) *	1979-05-22	1982-12-14	Masaharu Kawaguchi	Digital multi-frequency receiver
US4368434A (en) *	1980-09-18	1983-01-11	Codex Corporation	Programmable digital detector for the demodulation of angle modulated electrical signals
US4399536A (en) *	1981-10-02	1983-08-16	Bell Telephone Laboratories, Incorporated	Convolution filter arrangement for digital multifrequency receiver

1982
- 1982-04-06 SE SE8202191A patent/SE430554B/sv unknown
1983
- 1983-03-25 WO PCT/SE1983/000107 patent/WO1983003732A1/en not_active Ceased
- 1983-03-25 NL NL8320091A patent/NL8320091A/nl unknown
- 1983-03-25 GB GB08409831A patent/GB2135488B/en not_active Expired
- 1983-04-05 ES ES521229A patent/ES521229A0/es active Granted
- 1983-04-06 IT IT8320471A patent/IT8320471A0/it unknown
- 1983-11-23 US US06/558,420 patent/US4614909A/en not_active Expired - Lifetime
- 1983-12-05 NO NO834469A patent/NO834469L/no unknown
1984
- 1984-04-24 FI FI841600A patent/FI841600A0/fi not_active Application Discontinuation

Also Published As

Publication number	Publication date
GB2135488A (en)	1984-08-30
SE430554B (sv)	1983-11-21
ES8404130A1 (es)	1984-04-01
ES521229A0 (es)	1984-04-01
US4614909A (en)	1986-09-30
NL8320091A (nl)	1984-07-02
NO834469L (no)	1983-12-05
SE8202191L (sv)	1983-10-07
IT8320471A0 (it)	1983-04-06
GB8409831D0 (en)	1984-05-23
FI841600A0 (fi)	1984-04-24
GB2135488B (en)	1985-08-07
WO1983003732A1 (en)	1983-10-27

Publication	Publication Date	Title
FI841297A7 (fi)	1985-10-01	Strykanordning foer att oeverdraga loepande aemnesbanor.
FI78601B (fi)	1989-05-31	Engaongsbloeja.
FI78611B (fi)	1989-05-31	Uppbevaringspaose.
FI73534B (fi)	1987-06-30	Bandkassett.
FI73505B (fi)	1987-06-30	Faestelement.
EP0108151A4 (en)	1984-09-19	VOICE ENCODER.
FI823990L (fi)	1984-05-20	Faestningsklaemmare.
FI77050B (fi)	1988-09-30	Gelatinkomposition foer sprutgjutning.
DE3381054D1 (de)	1990-02-08	Immunoessay.
FI78606B (fi)	1989-05-31	Saekerhetssaete.
FI841600A7 (fi)	1984-04-24	Anordning foer att identifiera digitala flerfrekvenssignaler.
FI73520B (fi)	1987-06-30	Maolanordning.
ES272075Y (es)	1984-05-16	Corretilla.
FI824194L (fi)	1984-06-08	Foertillverkat betongarmeringselement.
FI824023L (fi)	1984-05-24	Tapet.
FI824052L (fi)	1984-05-26	Filtreringspress.
FI73929B (fi)	1987-08-31	Foerflyttbar lasttransportoer.
FI824188L (fi)	1984-06-04	Faestsystem foer jordbruksmaskinsbillar.
FI842681A7 (fi)	1984-07-04	Foervaringsmoebel.
FI824359L (fi)	1984-06-18	Saett att framstaella en asfaltbetong.
ES267329Y (es)	1983-09-16	Interruptor-conmutador.
ES269334Y (es)	1984-01-16	Armario-casillero.
ES269318Y (es)	1984-01-01	Cenicero-lampara.
ATE15033T1 (de)	1985-09-15	Halogenpropargylformamide.
ES267181Y (es)	1983-08-16	Alcoholimetro.

Legal Events

Date	Code	Title	Description
2004-08-31	FA	Application withdrawn [patent]	Owner name: OY L M ERICSSON AB