Apparatus for recording digital data of various kinds on a slant

Details Apparatus for recording digital data of various kinds on a slant Apparatus for recording digital data of various kinds on a slant

1984-11-09

1987-06-09

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

Converting an analog signal to digital form for recording;...

360 39, G11B 509

Patent

active

046724800

ABSTRACT:
Digital data is recorded on a slant track of a magnetic tape by a rotary head, in which the sampling frequency of the digital data can be changed in accordance with the nature of the digital data. The recording apparatus comprises a memory for writing the digital data in response to an input clock signal which is synchronized with the sampling frequency and reading the digital data therefrom in response to a system clock signal; and a circuit for converting the digital data read out from the memory into a data block having such a capacity that the data block can be recorded during one scan of the rotary head. Even when the data rate of the input digital signal is unclear, if the data rate lies within a range where the buffer memory does not overflow, the apparatus can continuously record the input digital signal. Thus, the apparatus can easily interface with an external computer.

REFERENCES:
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patent: 4141039 (1979-02-01), Yamamoto
patent: 4206476 (1980-06-01), Hashimoto
patent: 4334247 (1982-06-01), Lemke
patent: 4378593 (1983-03-01), Yamamoto
Lee, Time Compression and Expansion of Speech by the Sampling Method; Journal of the Audio Engineering Society, May 4, 1972.

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