IT1108472B - Filtro elettronico di sicurezza - Google Patents

Filtro elettronico di sicurezza

Info

Publication number
IT1108472B
IT1108472B IT68686/78A IT6868678A IT1108472B IT 1108472 B IT1108472 B IT 1108472B IT 68686/78 A IT68686/78 A IT 68686/78A IT 6868678 A IT6868678 A IT 6868678A IT 1108472 B IT1108472 B IT 1108472B
Authority
IT
Italy
Prior art keywords
electronic safety
safety filter
filter
electronic
safety
Prior art date
Application number
IT68686/78A
Other languages
English (en)
Other versions
IT7868686A0 (it
Original Assignee
Westinghouse Air Brake Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Air Brake Co filed Critical Westinghouse Air Brake Co
Publication of IT7868686A0 publication Critical patent/IT7868686A0/it
Application granted granted Critical
Publication of IT1108472B publication Critical patent/IT1108472B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1213—Frequency selective two-port networks using amplifiers with feedback using transistor amplifiers
IT68686/78A 1977-07-18 1978-07-17 Filtro elettronico di sicurezza IT1108472B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81641677A 1977-07-18 1977-07-18

Publications (2)

Publication Number Publication Date
IT7868686A0 IT7868686A0 (it) 1978-07-17
IT1108472B true IT1108472B (it) 1985-12-09

Family

ID=25220534

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68686/78A IT1108472B (it) 1977-07-18 1978-07-17 Filtro elettronico di sicurezza

Country Status (2)

Country Link
GB (1) GB1603530A (it)
IT (1) IT1108472B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3072002B2 (ja) * 1994-08-01 2000-07-31 株式会社東芝 アクティブバンドパスフィルタ

Also Published As

Publication number Publication date
IT7868686A0 (it) 1978-07-17
GB1603530A (en) 1981-11-25

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950727