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US 5,233,439 AGranted
Disk player with improved sound during different speed video reproductions
AssigneePioneer Electronic Corporation
InventorYoshihiro Utsumi
Life of this patent
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Abstract
In a disk performance apparatus, an audio signal processor is provided so as to remove the higher components with frequency higher than the prescribed frequency of audio signals included in outputs of a reading device for reading recorded signals of a disk during still or slow picture reproducing and the lower components with frequency lower than that corresponding to the period of the track jump, and incompatibility in the auditory sensation of the reproducing sound is eliminated.
Claims4
A disk performance apparatus comprising:
- reading means for reading signals recorded on a disk, the disk having a video format signal and audio signals on the same track, the reading means having at least one signal reading point;
- performance control means for effecting a performance operation specified by a track jumping of the signal reading point;
- and
- audio signal processing means having means for switching transmission of audio read output signals from the reading means either directly to an output terminal or indirectly to the output terminal through a band pass filter such that, when the performance control means effects the performance operation having track jumping of the signals reading point to repeatedly read signals recorded on a portion of said disk, said audio signal processing means can switch transmission of the audio signals to the band pass filter rather than directly to the output terminal to thereby remove higher components of the audio read output signals having a frequency higher than a prescribed frequency, and can also remove lower components of the audio read output signals having a frequency lower than that corresponding to the period of the track jumping.
1 more element
Dependencies are inferred from the claim text.