CS372688A1 - General-purpose digital receiver for multi-cipher code - Google Patents

General-purpose digital receiver for multi-cipher code

Info

Publication number
CS372688A1
CS372688A1 CS883726A CS372688A CS372688A1 CS 372688 A1 CS372688 A1 CS 372688A1 CS 883726 A CS883726 A CS 883726A CS 372688 A CS372688 A CS 372688A CS 372688 A1 CS372688 A1 CS 372688A1
Authority
CS
Czechoslovakia
Prior art keywords
general
digital receiver
purpose digital
cipher code
cipher
Prior art date
Application number
CS883726A
Other languages
Czech (cs)
English (en)
Inventor
Peter Dr Ing Lenz
Johannes Schuchart
Original Assignee
Peter Dr Ing Lenz
Johannes Schuchart
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 Peter Dr Ing Lenz, Johannes Schuchart filed Critical Peter Dr Ing Lenz
Publication of CS372688A1 publication Critical patent/CS372688A1/cs

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
    • H04Q1/4575—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 which are transmitted in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Complex Calculations (AREA)
CS883726A 1987-06-22 1988-05-31 General-purpose digital receiver for multi-cipher code CS372688A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD30404987A DD266253A3 (de) 1987-06-22 1987-06-22 Universeller digitaler mfc-empfaenger

Publications (1)

Publication Number Publication Date
CS372688A1 true CS372688A1 (en) 1990-06-13

Family

ID=5590012

Family Applications (1)

Application Number Title Priority Date Filing Date
CS883726A CS372688A1 (en) 1987-06-22 1988-05-31 General-purpose digital receiver for multi-cipher code

Country Status (4)

Country Link
CS (1) CS372688A1 (enrdf_load_stackoverflow)
DD (1) DD266253A3 (enrdf_load_stackoverflow)
DE (1) DE3814727A1 (enrdf_load_stackoverflow)
HU (1) HUT49975A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1289281C (en) * 1988-05-05 1991-09-17 Jerry Stroobach Digital dtmf tone detector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295665A1 (fr) * 1974-12-18 1976-07-16 Labo Cent Telecommunicat Recepteur numerique de signaux multifrequences
CH601954A5 (enrdf_load_stackoverflow) * 1975-06-27 1978-07-14 Siemens Ag Albis
DE2712831B2 (de) * 1977-03-23 1980-01-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Sprachgeschützter frequenzselektiver Zeichenempfänger
DE2712847C3 (de) * 1977-03-23 1979-12-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Sprachgeschützter frequenzselektiver Zeichenempfänger
DE2719248C2 (de) * 1977-04-29 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Frequenzselektiver Zeichenempfänger für Fernmelde-, insbesondere Fernsprechanlagen

Also Published As

Publication number Publication date
DD266253A3 (de) 1989-03-29
DE3814727C2 (enrdf_load_stackoverflow) 1989-08-10
HUT49975A (en) 1989-11-28
DE3814727A1 (de) 1989-01-05

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