Parallel port pass-through digital to analog converter

Details Parallel port pass-through digital to analog converter Parallel port pass-through digital to analog converter

1987-10-02

1989-03-14

Shoop, Jr., William M.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

341144, 455 31, H03M 178

Patent

active

048128473

ABSTRACT:
A digital-to-analog (D/A) converter for connecting to a computer's parallel port, while allowing another peripheral to be attached to, and use, the same port. The D/A converter requires no external power supply. The D/A converter may be used to produce speech, music or other sounds.

REFERENCES:
patent: 4009346 (1977-02-01), Parker et al.
The Engineering Staff of Analog Devices, Inc., Analog-Digital Conversion Handbook, 6/1972, pp. II-36 to II-39.

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