DK120711B - Electrical circuit for detecting a tone signal. - Google Patents
Electrical circuit for detecting a tone signal.Info
- Publication number
- DK120711B DK120711B DK131969A DK131969A DK120711B DK 120711 B DK120711 B DK 120711B DK 131969 A DK131969 A DK 131969A DK 131969 A DK131969 A DK 131969A DK 120711 B DK120711 B DK 120711B
- Authority
- DK
- Denmark
- Prior art keywords
- detecting
- electrical circuit
- tone signal
- tone
- signal
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/022—Selective call receivers
- H04W88/025—Selective call decoders
- H04W88/027—Selective call decoders using frequency address codes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Meter Arrangements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK131969A DK120711B (en) | 1969-03-11 | 1969-03-11 | Electrical circuit for detecting a tone signal. |
GB1009570A GB1246782A (en) | 1969-03-11 | 1970-03-03 | An electric circuit for detecting an audio frequency signal |
DE19702010018 DE2010018B2 (en) | 1969-03-11 | 1970-03-04 | CIRCUIT ARRANGEMENT FOR DISPLAYING THE COMPLETE PRESENCE OF SEVERAL FREQUENCIES CONTAINED IN AN ELECTRICAL SIGNAL |
NL7003216A NL7003216A (en) | 1969-03-11 | 1970-03-06 | |
SE308170A SE348088B (en) | 1969-03-11 | 1970-03-09 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK131969A DK120711B (en) | 1969-03-11 | 1969-03-11 | Electrical circuit for detecting a tone signal. |
Publications (1)
Publication Number | Publication Date |
---|---|
DK120711B true DK120711B (en) | 1971-07-05 |
Family
ID=8103520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK131969A DK120711B (en) | 1969-03-11 | 1969-03-11 | Electrical circuit for detecting a tone signal. |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE2010018B2 (en) |
DK (1) | DK120711B (en) |
GB (1) | GB1246782A (en) |
NL (1) | NL7003216A (en) |
SE (1) | SE348088B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2076238B (en) * | 1980-05-16 | 1983-11-30 | Plessey Co Ltd | Radio receiver |
-
1969
- 1969-03-11 DK DK131969A patent/DK120711B/en unknown
-
1970
- 1970-03-03 GB GB1009570A patent/GB1246782A/en not_active Expired
- 1970-03-04 DE DE19702010018 patent/DE2010018B2/en not_active Withdrawn
- 1970-03-06 NL NL7003216A patent/NL7003216A/xx unknown
- 1970-03-09 SE SE308170A patent/SE348088B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2010018B2 (en) | 1972-04-13 |
NL7003216A (en) | 1970-09-15 |
GB1246782A (en) | 1971-09-22 |
SE348088B (en) | 1972-08-21 |
DE2010018A1 (en) | 1970-10-01 |
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