IT7921129A0 - Ricevitore di tono per sistemi di telecomunicazioni. - Google Patents
Ricevitore di tono per sistemi di telecomunicazioni.Info
- Publication number
- IT7921129A0 IT7921129A0 IT7921129A IT2112979A IT7921129A0 IT 7921129 A0 IT7921129 A0 IT 7921129A0 IT 7921129 A IT7921129 A IT 7921129A IT 2112979 A IT2112979 A IT 2112979A IT 7921129 A0 IT7921129 A0 IT 7921129A0
- Authority
- IT
- Italy
- Prior art keywords
- telecommunications systems
- tone receiver
- tone
- receiver
- telecommunications
- 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)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
- Circuits Of Receivers In General (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT21129/79A IT1202905B (it) | 1979-03-20 | 1979-03-20 | Ricevitore di tono per sistemi di telecomunicazioni |
HU8080461A HU179829B (en) | 1979-03-20 | 1980-02-28 | Sound receiver for telecommunication systems |
BR8001511A BR8001511A (pt) | 1979-03-20 | 1980-03-14 | Receptor de tonalidade para sistemas de telecomunicacao |
GB8008898A GB2052214B (en) | 1979-03-20 | 1980-03-17 | Tone receivers for telecommunications systems |
US06/131,704 US4325030A (en) | 1979-03-20 | 1980-03-19 | Frequency discriminator for signal receiver of telecommunication system |
AU56596/80A AU5659680A (en) | 1979-03-20 | 1980-03-19 | Pulse receiver |
AR280368A AR220825A1 (es) | 1979-03-20 | 1980-03-19 | Receptor de tono para aparatos de telecomunicacion |
DE19803010785 DE3010785A1 (de) | 1979-03-20 | 1980-03-20 | Tonempfaenger fuer ein fernmeldesystem |
YU00770/80A YU77080A (en) | 1979-03-20 | 1980-03-20 | Tone receiver for telecommunication systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT21129/79A IT1202905B (it) | 1979-03-20 | 1979-03-20 | Ricevitore di tono per sistemi di telecomunicazioni |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7921129A0 true IT7921129A0 (it) | 1979-03-20 |
IT1202905B IT1202905B (it) | 1989-02-15 |
Family
ID=11177164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21129/79A IT1202905B (it) | 1979-03-20 | 1979-03-20 | Ricevitore di tono per sistemi di telecomunicazioni |
Country Status (9)
Country | Link |
---|---|
US (1) | US4325030A (it) |
AR (1) | AR220825A1 (it) |
AU (1) | AU5659680A (it) |
BR (1) | BR8001511A (it) |
DE (1) | DE3010785A1 (it) |
GB (1) | GB2052214B (it) |
HU (1) | HU179829B (it) |
IT (1) | IT1202905B (it) |
YU (1) | YU77080A (it) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4656431A (en) * | 1986-03-06 | 1987-04-07 | Motorola, Inc. | Digital frequency discriminator |
DE4038291A1 (de) * | 1990-11-29 | 1992-06-04 | Funkwerk Koepenick Gmbh I A | Anordnung fuer die auswertung von selektivrufen |
US5392347A (en) * | 1992-02-19 | 1995-02-21 | Nec Corporation | Ringing tone signal detecting circuit |
GB9515842D0 (en) * | 1995-08-02 | 1995-10-04 | British Tech Group Int | Frequency detection |
DE19646337A1 (de) * | 1996-11-09 | 1998-05-14 | Schlafhorst & Co W | Spulenwechsel- und Transporteinrichtung |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3731188A (en) * | 1971-04-19 | 1973-05-01 | Tracor | Signal analysis of multiplicatively related frequency components in a complex signal |
US3812432A (en) * | 1973-01-05 | 1974-05-21 | Bell Telephone Labor Inc | Tone detector |
US3942126A (en) * | 1973-11-18 | 1976-03-02 | Victor Company Of Japan, Limited | Band-pass filter for frequency modulated signal transmission |
-
1979
- 1979-03-20 IT IT21129/79A patent/IT1202905B/it active
-
1980
- 1980-02-28 HU HU8080461A patent/HU179829B/hu unknown
- 1980-03-14 BR BR8001511A patent/BR8001511A/pt unknown
- 1980-03-17 GB GB8008898A patent/GB2052214B/en not_active Expired
- 1980-03-19 US US06/131,704 patent/US4325030A/en not_active Expired - Lifetime
- 1980-03-19 AU AU56596/80A patent/AU5659680A/en not_active Abandoned
- 1980-03-19 AR AR280368A patent/AR220825A1/es active
- 1980-03-20 DE DE19803010785 patent/DE3010785A1/de not_active Withdrawn
- 1980-03-20 YU YU00770/80A patent/YU77080A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
AU5659680A (en) | 1980-09-25 |
US4325030A (en) | 1982-04-13 |
AR220825A1 (es) | 1980-11-28 |
HU179829B (en) | 1982-12-28 |
GB2052214B (en) | 1983-03-16 |
IT1202905B (it) | 1989-02-15 |
YU77080A (en) | 1982-10-31 |
BR8001511A (pt) | 1980-11-11 |
DE3010785A1 (de) | 1980-10-09 |
GB2052214A (en) | 1981-01-21 |
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