Read/write control method and circuit for a sound recording/repr

Details Read/write control method and circuit for a sound recording/repr Read/write control method and circuit for a sound recording/repr

1996-02-27

1998-11-24

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

Application

G10L 900

Patent

active

058421696

ABSTRACT:
A read/write control circuit for a memory uses a read/write judging circuit which receives read and write request signals and a directional signal indicating whether a sequence of sound data inputted into the memory is in forward (normal) sequence or reversed sequence. The read/write judging circuit refers to the directional signal when both the read and write request signals simultaneously become active such that the read/write judge circuit gives priorty to a write operation in the memory when the sequence is normal by asserting a write enable signal and gives priorty to a read operation in the memory when the sequence is reversed by asserting a read enable signal.

REFERENCES:
patent: 4583131 (1986-04-01), Dakin
patent: 4789961 (1988-12-01), Tindall
patent: 4930027 (1990-05-01), Steele et al.
patent: 5416601 (1995-05-01), Wilkinson
patent: 5553055 (1996-09-01), Yokota et al.
patent: 5566293 (1996-10-01), Ko et al.
patent: 5574662 (1996-11-01), Windrem et al.
patent: 5619424 (1997-04-01), Cookson et al.

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