Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1985-03-13
1987-09-08
Shoop, Jr., William M.
Communications: electrical
Audible indication
Percussion-type sound producer
340347M, 340347AD, G06G 712, G06J 100, H03K 1302
Patent
active
046927387
ABSTRACT:
An analog signal is input to an A/D converting section. This A/D converting section has a D/A converter therein. The A/D converting section converts the input analog signal to a digital signal. A digital signal processing circuit receives an output signal from the A/D converting section and performs a predetermined process to this signal. A D/A converting section receives and converts an output signal of the digital signal processing circuit to an analog signal. This D/A converting section has a D/A converter with the same circuit arrangement as the D/A converter in the A/D converting section circuit and is constituted by the same circuit pattern. Therefore, the converting functions of the A/D converting section and of the D/A converting section are inverse functions of each other, so that error or distortion, which is caused in the A/D converting section, is automatically corrected when the digital signal is reconverted to the analog signal in the D/A converting section.
REFERENCES:
patent: 3540037 (1970-11-01), Ottesen
patent: 3883864 (1975-05-01), Thomas
patent: 3906488 (1975-09-01), Suarez-Gartner
patent: 4112427 (1978-09-01), Hofer et al.
patent: 4149256 (1979-04-01), Sumi et al.
patent: 4219879 (1980-08-01), Judell
patent: 4348768 (1982-09-01), Svala
patent: 4373189 (1983-02-01), Weant
patent: 4425561 (1984-01-01), Whiteside et al.
patent: 4431987 (1984-02-01), Whiteside
patent: 4532494 (1985-07-01), Sasaki et al.
Engineering Staff of Analog Devices, Inc., Analog-Digital Conversion Handbook, Jun. 1972, pp. I-85 and II-47.
Michael McGowan, "Processing Analog Signals Digitally on a Single Programmable Chip," Control Engineering, Oct. 1979, pp. 68-70.
Kabushiki Kaisha Toshiba
Logan Sharon D.
Shoop Jr. William M.
LandOfFree
Analog signal processing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Analog signal processing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analog signal processing apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2161118