Digital signal processor for simultaneously processing left and

Details Digital signal processor for simultaneously processing left and Digital signal processor for simultaneously processing left and

1992-06-25

1994-07-26

Kuntz, Curtis

Electrical audio signal processing systems and devices

Binaural and stereophonic

364275, 395325, H04R 500

Patent

active

053331990

ABSTRACT:
A data input/output circuit of a digital signal processor of the invention includes a converter circuit for serial-parallel conversion of data, an R-channel dedicated input latch circuit, two L-channel dedicated input latch circuits, an L-channel dedicated output latch circuit, an R-channel dedicated output data latch circuit, a multiplexer for switching output data, an edge detection circuit, a rising edge detection circuit, and a falling edge detecting circuit. The circuits 14, 14a and 14b supply latch or switching timing signals to the above circuits. Thus, the R-channel data and L-channel data can be transferred to other functional blocks through an internal bus during one sampling period. Thus, the right channel data and the left channel data are processed simultaneously, so that the signal processing time can be made unrelated to the input/output data.

REFERENCES:
Ash, Daniel B., "Enhanced Performance Single Chip DSP Requires Minimal External Circuitry," Maple Press, 1988.
Fulcher, John, An Introduction to Microcomputer Systems, Addison-Wesley, 1989.

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