Audio frequency multiplication device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 11, 1986
Issued Date -
N/A
app pub date -
Jul 19, 1985
filing date -
Jul 19, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A signal processing device for frequency multiplication of an analog signal by an adjustable multiplication factor. The input analog signal is digitized using a delta modulator and read into a random access memory at a first clock rate. The data is read out of the memory at second clock rate and then converted back to an analog output signal. The multiplication factor is a function of the adjustable ratio of the two clock rates. Residual noise is minimized by using the circuit slope voltage to trigger a variable pulse width multivibrator which controls switching of charge to a passive integrating circuit.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully