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SE7603136L - Referenslikriktare i en mottagaranordning for detektering av tva tonfrekvenser i en tonsignal - Google Patents

Referenslikriktare i en mottagaranordning for detektering av tva tonfrekvenser i en tonsignal

Info

Publication number
SE7603136L
SE7603136L SE7603136A SE7603136A SE7603136L SE 7603136 L SE7603136 L SE 7603136L SE 7603136 A SE7603136 A SE 7603136A SE 7603136 A SE7603136 A SE 7603136A SE 7603136 L SE7603136 L SE 7603136L
Authority
SE
Sweden
Prior art keywords
signal
tone
rectifier
level
incoming
Prior art date
Application number
SE7603136A
Other languages
Unknown language ( )
English (en)
Other versions
SE397763B (sv
Inventor
B R Carlqvist
A G Eriksson
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.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE7603136A priority Critical patent/SE397763B/sv
Priority to IN2274/CAL/76A priority patent/IN155829B/en
Priority to US05/756,115 priority patent/US4107475A/en
Priority to FI770021A priority patent/FI60802C/sv
Priority to CA269,275A priority patent/CA1064633A/en
Priority to DE2702026A priority patent/DE2702026C2/de
Priority to AU21438/77A priority patent/AU501585B2/en
Priority to NLAANVRAGE7700640,A priority patent/NL186486C/xx
Priority to SU772447655A priority patent/SU656562A3/ru
Priority to EG73/77A priority patent/EG13315A/xx
Priority to AR263584A priority patent/AR213111A1/es
Priority to BR7700987A priority patent/BR7700987A/pt
Priority to FR7705095A priority patent/FR2344190A1/fr
Priority to GB7714/77A priority patent/GB1544174A/en
Priority to IE432/77A priority patent/IE45187B1/en
Priority to ES456619A priority patent/ES456619A1/es
Priority to NO770816A priority patent/NO140085C/no
Priority to HU77EI731A priority patent/HU176229B/hu
Priority to IT21036/77A priority patent/IT1085209B/it
Priority to DK101977AA priority patent/DK142719B/da
Priority to YU622/77A priority patent/YU41466B/xx
Publication of SE7603136L publication Critical patent/SE7603136L/sv
Publication of SE397763B publication Critical patent/SE397763B/sv
Priority to MY166/80A priority patent/MY8000166A/xx

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
    • H04Q1/46—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies comprising means for distinguishing between a signalling current of predetermined frequency and a complex current containing that frequency, e.g. speech current

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Noise Elimination (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
SE7603136A 1976-03-09 1976-03-09 Mottagaranordning for storningskenslig detektering av atminstone tva tonfrekvenser i en inkommande tonsignal SE397763B (sv)

Priority Applications (22)

Application Number Priority Date Filing Date Title
SE7603136A SE397763B (sv) 1976-03-09 1976-03-09 Mottagaranordning for storningskenslig detektering av atminstone tva tonfrekvenser i en inkommande tonsignal
IN2274/CAL/76A IN155829B (sv) 1976-03-09 1976-12-28
US05/756,115 US4107475A (en) 1976-03-09 1977-01-03 Receiver apparatus for detection of two voice frequencies in a multifrequency tone signal
FI770021A FI60802C (fi) 1976-03-09 1977-01-04 Mottagaranordning foer stoerningsokaenslig detektering av tvao tonfrekvenser i en inkommande tonsignal
CA269,275A CA1064633A (en) 1976-03-09 1977-01-06 Receiver apparatus for detection of two voice frequencies in a multifrequency tone signal
DE2702026A DE2702026C2 (de) 1976-03-09 1977-01-19 Korrekturblatt
AU21438/77A AU501585B2 (en) 1976-03-09 1977-01-19 Two voice frequency receiver
NLAANVRAGE7700640,A NL186486C (nl) 1976-03-09 1977-01-21 Ontvanginrichting voor het detecteren van tenminste twee spraakfrequenties in een multitoonfrequent signaal.
SU772447655A SU656562A3 (ru) 1976-03-09 1977-02-02 Устройство дл приема многочастотных сигналов
EG73/77A EG13315A (en) 1976-03-09 1977-02-07 Receiver apparatus for detection of two voice frequencies in a multifrequency tone signal
BR7700987A BR7700987A (pt) 1976-03-09 1977-02-17 Aparelho receptor para deteccao de pelo menos duas frequencias vocais num sinal acustico recebido com sinalizacao mfc
AR263584A AR213111A1 (es) 1976-03-09 1977-02-17 Aparato receptor para deteccion de dos frecuencias audibles en una senal de tono de frecuencias multiples
FR7705095A FR2344190A1 (fr) 1976-03-09 1977-02-22 Recepteur de signaux codes a deux frequences acoustiques choisies parmi plusieurs
GB7714/77A GB1544174A (en) 1976-03-09 1977-02-23 Receiver for detecting components at different frequencies in a received signal
IE432/77A IE45187B1 (en) 1976-03-09 1977-02-28 A receiver for detecting components at different frequencies in a received signal
HU77EI731A HU176229B (en) 1976-03-09 1977-03-08 Receiver for detecting at least two sound frequency signals in the input multifrequency signal
NO770816A NO140085C (no) 1976-03-09 1977-03-08 Referanselikeretter i mottageranordning for stoeyufoelsom detektering av i det minste to tonefrekvenser i et innkommende tonesignal
ES456619A ES456619A1 (es) 1976-03-09 1977-03-08 Un aparato receptor perfeccionado para la detencion de al menos dos frecuencias vocales de una senal de tono.
IT21036/77A IT1085209B (it) 1976-03-09 1977-03-08 Apparecchio ricevitore atto a rilevare due frequenze audio in un segnale di tono a piu' frequenze
DK101977AA DK142719B (da) 1976-03-09 1977-03-08 Apparat til detektering af mindst to tonefrekvenser i et indkommende tonefrekvenssignal ved MFC-signalering.
YU622/77A YU41466B (en) 1976-03-09 1977-03-08 Receivers for detacting tuo freguencies from the range in a multifreguency tone signal
MY166/80A MY8000166A (en) 1976-03-09 1980-12-30 A receiver for detecting components at different frequencies in a received signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7603136A SE397763B (sv) 1976-03-09 1976-03-09 Mottagaranordning for storningskenslig detektering av atminstone tva tonfrekvenser i en inkommande tonsignal

Publications (2)

Publication Number Publication Date
SE7603136L true SE7603136L (sv) 1977-09-10
SE397763B SE397763B (sv) 1977-11-14

Family

ID=20327272

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7603136A SE397763B (sv) 1976-03-09 1976-03-09 Mottagaranordning for storningskenslig detektering av atminstone tva tonfrekvenser i en inkommande tonsignal

Country Status (22)

Country Link
US (1) US4107475A (sv)
AR (1) AR213111A1 (sv)
AU (1) AU501585B2 (sv)
BR (1) BR7700987A (sv)
CA (1) CA1064633A (sv)
DE (1) DE2702026C2 (sv)
DK (1) DK142719B (sv)
EG (1) EG13315A (sv)
ES (1) ES456619A1 (sv)
FI (1) FI60802C (sv)
FR (1) FR2344190A1 (sv)
GB (1) GB1544174A (sv)
HU (1) HU176229B (sv)
IE (1) IE45187B1 (sv)
IN (1) IN155829B (sv)
IT (1) IT1085209B (sv)
MY (1) MY8000166A (sv)
NL (1) NL186486C (sv)
NO (1) NO140085C (sv)
SE (1) SE397763B (sv)
SU (1) SU656562A3 (sv)
YU (1) YU41466B (sv)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227055A (en) * 1978-12-07 1980-10-07 Bell Telephone Laboratories, Incorporated Multifrequency receiver
US4395595A (en) * 1980-04-23 1983-07-26 Nippon Electric Co., Ltd. Digital pushbutton signalling receiver
US4385208A (en) * 1981-04-15 1983-05-24 Bell Telephone Laboratories, Incorporated Multifrequency receiver
US4489280A (en) * 1982-07-15 1984-12-18 Sperry Corporation Signal harmonic processor
US4599495A (en) * 1985-02-28 1986-07-08 Northern Telecom Limited Apparatus for multifrequency signalling tone detection
DE3710695A1 (de) * 1987-03-31 1988-10-20 Nixdorf Computer Ag Schaltungsanordnung zum erkennen von doppelton-mehrfrequenzsignalen in fernsprechanlagen
US20080068132A1 (en) * 2006-05-16 2008-03-20 Georges Kayanakis Contactless radiofrequency device featuring several antennas and related antenna selection circuit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1487973B2 (de) * 1966-05-12 1970-10-08 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung für einen sprachgeschützten Ein- oder Mehrfrequenz-Signalempfänger
GB1342904A (en) * 1970-07-31 1974-01-10 Plessey Telecommunications Res Multifrequency data receivers
NL7101521A (sv) * 1971-02-05 1972-08-08
US3934096A (en) * 1973-04-27 1976-01-20 Hitachi, Ltd. Multi-frequency signal receiving circuit
US3875347A (en) * 1973-10-01 1975-04-01 Gte Automatic Electric Lab Inc Multifrequency signal receiver
JPS5543677B2 (sv) * 1974-05-15 1980-11-07
DE2517024C3 (de) * 1975-04-17 1978-03-02 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung für einen Signalempfänger zum Sperren von Signalen, deren Pegel schwankt
SE396684B (sv) * 1976-02-09 1977-09-26 Ericsson Telefon Ab L M Hallkrets i en mottagaranordning for mfc-signalering

Also Published As

Publication number Publication date
AU501585B2 (en) 1979-06-21
BR7700987A (pt) 1977-10-18
CA1064633A (en) 1979-10-16
AU2143877A (en) 1978-07-27
SU656562A3 (ru) 1979-04-05
IT1085209B (it) 1985-05-28
YU62277A (en) 1982-05-31
FI60802C (fi) 1982-03-10
SE397763B (sv) 1977-11-14
DK142719C (sv) 1981-08-10
FI60802B (fi) 1981-11-30
DE2702026C2 (de) 1985-10-24
DK101977A (sv) 1977-09-10
FI770021A (sv) 1977-09-10
IE45187L (en) 1977-09-09
DE2702026A1 (de) 1977-09-15
NL7700640A (nl) 1977-09-13
GB1544174A (en) 1979-04-11
FR2344190A1 (fr) 1977-10-07
IN155829B (sv) 1985-03-16
DK142719B (da) 1980-12-29
ES456619A1 (es) 1978-01-16
FR2344190B1 (sv) 1983-10-07
NL186486C (nl) 1990-12-03
NO770816L (no) 1977-09-12
NO140085C (no) 1979-07-04
HU176229B (en) 1981-01-28
YU41466B (en) 1987-08-31
AR213111A1 (es) 1978-12-15
US4107475A (en) 1978-08-15
IE45187B1 (en) 1982-07-14
NL186486B (nl) 1990-07-02
MY8000166A (en) 1980-12-31
EG13315A (en) 1981-03-31
NO140085B (no) 1979-03-19

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