Transmitting information from producer to end users through slan

Details Transmitting information from producer to end users through slan Transmitting information from producer to end users through slan

1988-09-23

1991-11-12

Richardson, Robert L.

Dynamic magnetic information storage or retrieval

Record copying

G11B 586

Patent

active

050652583

ABSTRACT:
In a method and apparatus for transmitting information from producer to end viewers, the information is provided on a first recording medium recorded at a standard speed and in a standard format in a series of tracks slanted relative to a direction of movement of that medium. The information is reproduced from the series of tracks on the first recording medium in the form of electric signals seriatim at increased speed on the order of a multiple of the standard speed. The reproduced information is simultaneously rerecorded from the electric signals seriatim in a standard format with series of tracks on several second recording media at the increased speed, for replay of that recorded information by several end users at different times from the several recording media at standard speed. Additionally or alternatively, second synchronization signals having frequencies increased by the above mentioned multiple relative to a standard synchronization frequencies may be provided, and the electric signals may be processed with those second synchronization signals. From these second synchronization signals, third synchronization signals having the standard frequencies may be derived for synchronizing the above mentioned reproduction and rerecording processes.

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