IT981336B - Filtro a frequenza fonica per impianti a comando centrale - Google Patents
Filtro a frequenza fonica per impianti a comando centraleInfo
- Publication number
- IT981336B IT981336B IT21522/73A IT2152273A IT981336B IT 981336 B IT981336 B IT 981336B IT 21522/73 A IT21522/73 A IT 21522/73A IT 2152273 A IT2152273 A IT 2152273A IT 981336 B IT981336 B IT 981336B
- Authority
- IT
- Italy
- Prior art keywords
- frequency filter
- sound frequency
- operated systems
- centrally operated
- centrally
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H19/00—Networks using time-varying elements, e.g. N-path filters
- H03H19/002—N-path filters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
- H02J13/00009—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission using pulsed signals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Networks Using Active Elements (AREA)
- Selective Calling Equipment (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2212814A DE2212814B2 (de) | 1972-03-16 | 1972-03-16 | Tonfrequenzfilter für Rundsteueranlagen |
Publications (1)
Publication Number | Publication Date |
---|---|
IT981336B true IT981336B (it) | 1974-10-10 |
Family
ID=5839152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21522/73A IT981336B (it) | 1972-03-16 | 1973-03-13 | Filtro a frequenza fonica per impianti a comando centrale |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS491987A (nl) |
BE (1) | BE796734A (nl) |
CH (1) | CH548684A (nl) |
DE (1) | DE2212814B2 (nl) |
FR (1) | FR2176124B3 (nl) |
IT (1) | IT981336B (nl) |
NL (1) | NL7303495A (nl) |
-
1972
- 1972-03-16 DE DE2212814A patent/DE2212814B2/de not_active Withdrawn
-
1973
- 1973-03-02 CH CH308773A patent/CH548684A/xx not_active IP Right Cessation
- 1973-03-12 JP JP48028910A patent/JPS491987A/ja active Pending
- 1973-03-13 NL NL7303495A patent/NL7303495A/xx unknown
- 1973-03-13 IT IT21522/73A patent/IT981336B/it active
- 1973-03-14 BE BE128760A patent/BE796734A/xx unknown
- 1973-03-15 FR FR7309387A patent/FR2176124B3/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH548684A (de) | 1974-04-30 |
JPS491987A (nl) | 1974-01-09 |
FR2176124B3 (nl) | 1976-03-12 |
NL7303495A (nl) | 1973-09-18 |
BE796734A (fr) | 1973-07-02 |
FR2176124A1 (nl) | 1973-10-26 |
DE2212814A1 (de) | 1973-09-27 |
DE2212814B2 (de) | 1974-07-11 |
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