GB1436815A - Reed resonance filters for audio frquencies - Google Patents

Reed resonance filters for audio frquencies

Info

Publication number
GB1436815A
GB1436815A GB2161174A GB2161174A GB1436815A GB 1436815 A GB1436815 A GB 1436815A GB 2161174 A GB2161174 A GB 2161174A GB 2161174 A GB2161174 A GB 2161174A GB 1436815 A GB1436815 A GB 1436815A
Authority
GB
United Kingdom
Prior art keywords
reed
polepiece
audio
frequency
frame
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2161174A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Building Technologies AG
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
LGZ Landis and Gyr Zug AG
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 Landis and Gyr AG, LGZ Landis and Gyr Zug AG filed Critical Landis and Gyr AG
Publication of GB1436815A publication Critical patent/GB1436815A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/48—Coupling means therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
GB2161174A 1973-06-29 1974-05-15 Reed resonance filters for audio frquencies Expired GB1436815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH947773A CH559474A5 (en:Method) 1973-06-29 1973-06-29

Publications (1)

Publication Number Publication Date
GB1436815A true GB1436815A (en) 1976-05-26

Family

ID=4352402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2161174A Expired GB1436815A (en) 1973-06-29 1974-05-15 Reed resonance filters for audio frquencies

Country Status (6)

Country Link
JP (1) JPS5034439A (en:Method)
AT (1) AT328546B (en:Method)
CH (1) CH559474A5 (en:Method)
DE (1) DE2344997C3 (en:Method)
FR (1) FR2235635A7 (en:Method)
GB (1) GB1436815A (en:Method)

Also Published As

Publication number Publication date
DE2344997A1 (de) 1975-01-16
FR2235635A7 (en:Method) 1975-01-24
ATA489174A (de) 1975-06-15
CH559474A5 (en:Method) 1975-02-28
DE2344997B2 (de) 1978-10-05
AT328546B (de) 1976-03-25
JPS5034439A (en:Method) 1975-04-02
DE2344997C3 (de) 1979-06-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee