Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Patent
1991-05-31
1993-11-09
Williams, Howard L.
Coded data generation or conversion
Analog to or from digital conversion
Digital to analog conversion
381120, H03M 166, H03F 2100
Patent
active
052607046
ABSTRACT:
A direct power output digital to analog conversion of digital audio signals operates to directly convert digital audio signals into an analog power audio output signal capable of driving a speaker, such that there is no need for further amplification or modification of the audio output signal after the direct power output digital to analog conversion of the digital audio signals. The direct power output digital to analog conversion incorporates a digital-to-analog converter within the same feedback circuit as a current-to-voltage power amplifier by using a single resistive feedback network to supply the feedback signal from the output terminal of the current-to-voltage power amplifier to the summing junction of the same current-to-voltage power amplifier.
REFERENCES:
patent: 4408094 (1983-10-01), Oura
patent: 4591832 (1986-05-01), Fling et al.
patent: 5046107 (1991-09-01), Iwamatsu
patent: 5086474 (1992-02-01), Rumreich
Jung, "IC Op-Amp Cookbook" 1980, pp. 315-319.
Beyerly et al. "National Semiconductor Handbook, LM380 Power Audio Amplifier" Dec. 1972 pp. AN69-1 to AN69-7.
Analog Devices, "Analog-Digital Conversion Handbook", 1986 p. 237.
Bradford Robert S.
Cox Janice L.
Hustig Charles H.
Kresse James M.
Miller Raymond S.
Wadia Digital Corporation
Williams Howard L.
LandOfFree
Direct power output digital to analog conversion of digital audi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Direct power output digital to analog conversion of digital audi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct power output digital to analog conversion of digital audi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1146045