CA822821A - Directional electret transducer - Google Patents

Directional electret transducer

Info

Publication number
CA822821A
CA822821A CA822821A CA822821DA CA822821A CA 822821 A CA822821 A CA 822821A CA 822821 A CA822821 A CA 822821A CA 822821D A CA822821D A CA 822821DA CA 822821 A CA822821 A CA 822821A
Authority
CA
Canada
Prior art keywords
electret transducer
directional electret
directional
transducer
electret
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
CA822821A
Inventor
W. Reedyk Cornelis
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.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA822821A publication Critical patent/CA822821A/en
Expired legal-status Critical Current

Links

CA822821A Directional electret transducer Expired CA822821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA822821T

Publications (1)

Publication Number Publication Date
CA822821A true CA822821A (en) 1969-09-09

Family

ID=36300233

Family Applications (1)

Application Number Title Priority Date Filing Date
CA822821A Expired CA822821A (en) Directional electret transducer

Country Status (1)

Country Link
CA (1) CA822821A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668417A (en) * 1970-12-28 1972-06-06 Bell Telephone Labor Inc Touch-sensitive switch employing electret foil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668417A (en) * 1970-12-28 1972-06-06 Bell Telephone Labor Inc Touch-sensitive switch employing electret foil

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