Electronic ausculscope
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 15, 1988
Grant Date -
N/A
app pub date -
Jul 30, 1986
filing date -
Jul 30, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A battery source of dc voltage continuously energizes digital circuitry for controlling operation of analog signal processing circuitry including a microphone preamplifier, an automatic gain control amplifier, a bandpass section and an output buffer driving audio reproducing equipment. The analog signal processing circuitry is energized on select command from the battery source through a switched on power supply. Automatic operation of the gain control amplifier may be disabled and the bandpass section by-passed in response to other select commands.
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