Automatic gain and frequency characteristic control unit in audio device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 17, 1987
Grant Date -
N/A
app pub date -
May 31, 1985
filing date -
May 31, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic gain control unit particularly adapted for vehicular use is disclosed. The ambient noise level inside the vehicle is detected, as is the level of the audio signal. A difference is formed between detection signals thus produced, and a frequency characteristic of a gain varying device, inserted in an audio signal path of the audio device, is varied according to this difference.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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