Processing and playback apparatus for recorded digital data

Details Processing and playback apparatus for recorded digital data Processing and playback apparatus for recorded digital data

1995-07-05

1997-05-13

Heckler, Thomas M.

395880, G06F 114

Patent

active

056301111

ABSTRACT:
The present invention relates to a digital data processing apparatus for transferring digital data which is output from a disc reproduction section to a buffer memory-equipped host processing section and for performing processing. The range over which the frequency of an operation clock in the disc reproduction section is shifted under an ambient condition is set to be higher than the range over which the frequency of an operation clock in the host processing section is shifted under the ambient condition. The storage capacity of the memory is set to be greater than a maximum amount of unprocessed data accumulated in the memory which is calculated from the frequency shifts of both the operation clocks and maximum data of the disc reproduction section, whereby the memory is prevented from being placed in an over- or an underflowed state and a normal data reproduction can be achieved.

REFERENCES:
patent: 4413289 (1983-11-01), Weaver et al.
patent: 4802152 (1989-01-01), Markvoort et al.
patent: 4872073 (1989-10-01), Fincher et al.
patent: 5291468 (1994-03-01), Carmon et al.

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