Playback device for a disc-shaped record carrier with transducer lifting for changing playback groove for fast, slow or stop effects
AssigneeTED Bildplatten Aktiengesellschaft AEG-Telefunken-Teldec
InventorsGerhard Dickopp, Benno Jahnel, Wolfgang Rainer, Paul Ludwig Dummen
Life of this patent
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Abstract
A playback device for disc-shaped record carriers containing video signals stored in the grooves thereof which includes an arrangement which, in response to an applied power pulse, displaces the pickup, during playback, by a number of groove widths transversely to the direction of the groove.
Claims13
In a playback device for a disc-shaped record carrier containing signals stored in the grooves thereof, said device including means for rotating the record carrier, a movable carriage, means for moving said carriage in a direction radially to the record during playback, a pickup having a stylus arranged to contact one surface of the record carrier and engage in a groove thereof, and a mount which is connected to said carriage, for elastically supporting said pickup, the improvement comprising:
- means for providing power pulses at desired times during playback;
- and
- energy pulse generating means responsive to said power pulses for applying an energy pulse to said pickup for lifting said pickup, displacing said pickup by a desired number of groove widths transversely to the direction of the groove and then returning said pickup to said surface of said carrier.
Dependencies are inferred from the claim text.