IT1034219B - Dispositivo digitale di sorveglianza e allarme - Google Patents
Dispositivo digitale di sorveglianza e allarmeInfo
- Publication number
- IT1034219B IT1034219B IT21193/75A IT2119375A IT1034219B IT 1034219 B IT1034219 B IT 1034219B IT 21193/75 A IT21193/75 A IT 21193/75A IT 2119375 A IT2119375 A IT 2119375A IT 1034219 B IT1034219 B IT 1034219B
- Authority
- IT
- Italy
- Prior art keywords
- alarm device
- digital surveillance
- surveillance
- digital
- alarm
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/095—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using a lock detector
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2412966A DE2412966C3 (de) | 1974-03-18 | 1974-03-18 | Digitale Einrichtung zum Überwachen der Synchronisation bei Trägerfrequenzeinrichtungen |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1034219B true IT1034219B (it) | 1979-09-10 |
Family
ID=5910415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21193/75A IT1034219B (it) | 1974-03-18 | 1975-03-13 | Dispositivo digitale di sorveglianza e allarme |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5310417B2 (nl) |
AU (1) | AU7897075A (nl) |
CH (1) | CH574688A5 (nl) |
DE (1) | DE2412966C3 (nl) |
FR (1) | FR2265214B1 (nl) |
GB (1) | GB1494677A (nl) |
IT (1) | IT1034219B (nl) |
NL (1) | NL7503157A (nl) |
SE (1) | SE397755B (nl) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3988696A (en) * | 1975-11-28 | 1976-10-26 | The Bendix Corporation | Phase lock detector for digital frequency synthesizer |
JPS54150564A (en) * | 1978-05-17 | 1979-11-26 | Fujitsu Ltd | Alarm circuit for pll circuit |
DE2825277C3 (de) * | 1978-06-08 | 1981-05-07 | Siemens AG, 1000 Berlin und 8000 München | Vorrichtung zur Trägerabschaltung |
DE2918850C2 (de) * | 1979-05-10 | 1983-05-26 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren und Schaltungsanordnung zum Erkennen des Regelzustandes einer Phasenregelschleife |
JPS5776929A (en) * | 1980-10-30 | 1982-05-14 | Denki Kogyo Kk | Pll synchronizing detector |
-
1974
- 1974-03-18 DE DE2412966A patent/DE2412966C3/de not_active Expired
-
1975
- 1975-02-26 GB GB7986/75A patent/GB1494677A/en not_active Expired
- 1975-03-10 CH CH297275A patent/CH574688A5/xx not_active IP Right Cessation
- 1975-03-11 AU AU78970/75A patent/AU7897075A/en not_active Expired
- 1975-03-13 IT IT21193/75A patent/IT1034219B/it active
- 1975-03-14 SE SE7502895A patent/SE397755B/xx unknown
- 1975-03-14 FR FR7508022A patent/FR2265214B1/fr not_active Expired
- 1975-03-17 NL NL7503157A patent/NL7503157A/nl not_active Application Discontinuation
- 1975-03-18 JP JP3284975A patent/JPS5310417B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2412966B2 (de) | 1978-11-16 |
SE7502895L (nl) | 1975-09-19 |
FR2265214B1 (nl) | 1979-02-16 |
GB1494677A (en) | 1977-12-07 |
JPS50128967A (nl) | 1975-10-11 |
FR2265214A1 (nl) | 1975-10-17 |
CH574688A5 (nl) | 1976-04-15 |
AU7897075A (en) | 1976-09-16 |
SE397755B (sv) | 1977-11-14 |
DE2412966C3 (de) | 1979-07-12 |
DE2412966A1 (de) | 1975-11-20 |
NL7503157A (nl) | 1975-09-22 |
JPS5310417B2 (nl) | 1978-04-13 |
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