Signal recording and/or reproducing device for unequal quantized

Details Signal recording and/or reproducing device for unequal quantized Signal recording and/or reproducing device for unequal quantized

1995-02-21

1996-01-16

Nguyen, Hoa T.

Excavating

360 8, 360 745, G11B 1928, G11B 2018, H03M 1300

Patent

active

054854695

ABSTRACT:
Using an IC memory card as a recording medium, quantized data is encoded in an unequal length manner by unequal length encoders, an error correction code is added in an error correction code addition section, and the data is recorded along with the control data of the fixed speed. At this time, a writing speed/time control circuit controls the writing speed or writing time corresponding to the number of the encoded bits per frame. An error correction method selection section modulates the length of the error correction codes corresponding to the number of the bits per frame. A buffer and countermeasures for overflow and underflow become unnecessary, error correction codes can be efficiently added, and the access to the respective frame units becomes easily possible.

REFERENCES:
patent: 3851116 (1974-11-01), Canno
patent: 4413289 (1983-11-01), Weaver et al.
patent: 4503420 (1985-03-01), Rub et al.
patent: 4995041 (1991-02-01), Hetherington et al.
patent: 5045954 (1991-09-01), Oishi et al.
patent: 5057917 (1991-10-01), Shaltauser et al.
patent: 5162795 (1992-11-01), Shirota

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