IL49898A0 - Method of recognizing single or multiple frequency code signals emanating from a succession of pcm-signals - Google Patents
Method of recognizing single or multiple frequency code signals emanating from a succession of pcm-signalsInfo
- Publication number
- IL49898A0 IL49898A0 IL49898A IL4989876A IL49898A0 IL 49898 A0 IL49898 A0 IL 49898A0 IL 49898 A IL49898 A IL 49898A IL 4989876 A IL4989876 A IL 4989876A IL 49898 A0 IL49898 A0 IL 49898A0
- Authority
- IL
- Israel
- Prior art keywords
- signals
- pcm
- succession
- multiple frequency
- frequency code
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH835075A CH601954A5 (en) | 1975-06-27 | 1975-06-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
IL49898A0 true IL49898A0 (en) | 1976-08-31 |
IL49898A IL49898A (en) | 1978-06-15 |
Family
ID=4338983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL49898A IL49898A (en) | 1975-06-27 | 1976-06-24 | Method of recognizhing single or multiple frequency code signals emanating from a succession of pcm-signals |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE843439A (en) |
CH (1) | CH601954A5 (en) |
DE (1) | DE2621085C3 (en) |
ES (1) | ES449293A1 (en) |
IL (1) | IL49898A (en) |
IT (1) | IT1061114B (en) |
NL (1) | NL179103C (en) |
SE (1) | SE426535B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1137632A (en) * | 1980-09-25 | 1982-12-14 | Claude J.J. Champagne | Pulse code demodulator for frequency shift keyed data |
DD266253A3 (en) * | 1987-06-22 | 1989-03-29 | Leipzig Rft Nachrichtenelekt | UNIVERSAL DIGITAL MFC RECEPTIONER |
CH678782A5 (en) * | 1989-05-31 | 1991-10-31 | Siemens Ag Albis |
-
1975
- 1975-06-27 CH CH835075A patent/CH601954A5/xx not_active IP Right Cessation
-
1976
- 1976-05-12 DE DE2621085A patent/DE2621085C3/en not_active Expired
- 1976-06-22 SE SE7607161A patent/SE426535B/en not_active IP Right Cessation
- 1976-06-22 NL NLAANVRAGE7606786,A patent/NL179103C/en not_active IP Right Cessation
- 1976-06-22 IT IT24533/76A patent/IT1061114B/en active
- 1976-06-24 IL IL49898A patent/IL49898A/en unknown
- 1976-06-25 BE BE168341A patent/BE843439A/en not_active IP Right Cessation
- 1976-06-26 ES ES449293A patent/ES449293A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2621085C3 (en) | 1979-02-01 |
BE843439A (en) | 1976-10-18 |
NL7606786A (en) | 1976-12-29 |
DE2621085B2 (en) | 1978-06-01 |
NL179103B (en) | 1986-02-03 |
SE7607161L (en) | 1976-12-28 |
DE2621085A1 (en) | 1977-01-20 |
ES449293A1 (en) | 1977-08-16 |
IL49898A (en) | 1978-06-15 |
CH601954A5 (en) | 1978-07-14 |
IT1061114B (en) | 1982-10-20 |
SE426535B (en) | 1983-01-24 |
NL179103C (en) | 1986-07-01 |
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