FR1276409A - Transformateur mécanique et électrique pour la production ou la lecture d'une piste sonore en forme de gorge ou de sillon
- Google Patents
Transformateur mécanique et électrique pour la production ou la lecture d'une piste sonore en forme de gorge ou de sillon
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.)
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Telefunken AG
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Telefunken AG
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Priority claimed from DET17816Aexternal-prioritypatent/DE1121826B/de
Application filed by Telefunken AGfiledCriticalTelefunken AG
Priority to FR847397ApriorityCriticalpatent/FR1276409A/fr
Application grantedgrantedCritical
Publication of FR1276409ApublicationCriticalpatent/FR1276409A/fr
H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
H04R9/16—Gramophone pick-ups using a stylus; Recorders using a stylus signals recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
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Physics & Mathematics
(AREA)
Engineering & Computer Science
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Acoustics & Sound
(AREA)
Signal Processing
(AREA)
FR847397A1960-02-021960-12-20Transformateur mécanique et électrique pour la production ou la lecture d'une piste sonore en forme de gorge ou de sillon
ExpiredFR1276409A
(fr)