CA477941A - Means for diminishing "background noise" in the photo-electric recording of sound - Google Patents

Means for diminishing "background noise" in the photo-electric recording of sound

Info

Publication number
CA477941A
CA477941A CA477941A CA477941DA CA477941A CA 477941 A CA477941 A CA 477941A CA 477941 A CA477941 A CA 477941A CA 477941D A CA477941D A CA 477941DA CA 477941 A CA477941 A CA 477941A
Authority
CA
Canada
Prior art keywords
diminishing
photo
sound
background noise
electric recording
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
CA477941A
Other languages
French (fr)
Inventor
De Selgas Y Marin Ezequiel
Laffon Y Soto Alberto
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA477941A publication Critical patent/CA477941A/en
Expired legal-status Critical Current

Links

CA477941A Means for diminishing "background noise" in the photo-electric recording of sound Expired CA477941A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA477941T

Publications (1)

Publication Number Publication Date
CA477941A true CA477941A (en) 1951-10-23

Family

ID=35617591

Family Applications (1)

Application Number Title Priority Date Filing Date
CA477941A Expired CA477941A (en) Means for diminishing "background noise" in the photo-electric recording of sound

Country Status (1)

Country Link
CA (1) CA477941A (en)

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