CS372688A1 - General-purpose digital receiver for multi-cipher code - Google Patents
General-purpose digital receiver for multi-cipher codeInfo
- 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
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)
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)
| 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)
| 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 |
-
1987
- 1987-06-22 DD DD30404987A patent/DD266253A3/de not_active IP Right Cessation
-
1988
- 1988-04-30 DE DE19883814727 patent/DE3814727A1/de active Granted
- 1988-05-27 HU HU270488A patent/HUT49975A/hu unknown
- 1988-05-31 CS CS883726A patent/CS372688A1/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE3814727A1 (de) | 1989-01-05 |
| HUT49975A (en) | 1989-11-28 |
| DE3814727C2 (enrdf_load_stackoverflow) | 1989-08-10 |
| DD266253A3 (de) | 1989-03-29 |
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