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DESCRIPTION JPS4914244

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DESCRIPTION JPS4914244
■ Regeneration apparatus ■ Japanese Patent Application No. 46-32187 [Phase] Application No.
46 (1971) May 13 Priority claim 01 May 13, 1970 [Phase] West Germany ■ P 2 O 24 539, 0
Opening No. 47-21 (1972) 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 by Gerhard Dieckop Germany Berlin 28 Germany 1 Heten Strase 150
Applicant Lin Ennoia No (Punto Hue [Facial] Attorney Attorney Roland Sonderhoff invented in
detail DESCRIPTION An apparatus has already been proposed for recording on the carrier the
surface of the carrier whose deformation corresponds to the time course of the signal volume
and for reproducing the stored signal. The regenerator used in that case exerts a pressing force
on the carrier surface which is moved relative to the regenerator. In this case, a piezoelectric or
magnetic pressure transducer (in the form of a transducer compressed in the direction of the
pressing force) is used as a regenerator, which is biased by the pressure over time, which
coincides with the deformation of the carrier. Be done. The contact with the carrier surface can
take place directly or via a connecting member which is hardly deformed. In addition to this,
playback devices have also been proposed which always take out high frequencies, that is to say,
frequencies which are significantly different from the frequency range which is a problem on a
normal recording board. For example, such a playback device needs to be able to be used for
playback of the following image. That is, it is necessary to be converted into a signal according to
the television standard and to be able to be used for the reproduction of the recorded and
reproduced image as in the case of a conventional method for recording on a record board. In
this case, the playback device must be able to play several MC frequencies from the disc X, X. For
this purpose, a piezoelectric or magnetostrictive reproduction device is configured as a
parallelepiped, for example a small prismatic body in the form of a cube, which acts as a
thickness oscillator. In this case, the regenerator has a length in the direction of the carrier which
is less than the length of the mechanical vibration wavelength with the upper cut-off frequency
of the transmission range, i.e. the upper limit of the transmission range occurring at the
transducer. Suitable materials for the vibration converter are in particular the well-known
ceramic materials lead-zirconate-titanate or potassium-sodium-niobiate. This is because the
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frequency stability makes it possible to increase the size of the converter, which requires
relatively simple production costs. Voice Frequency-As in Record Disc Technology [111111]
EndPage: 1
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