Status monitoring apparatus for car radio
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 20, 1999
Grant Date -
N/A
app pub date -
Apr 2, 1997
filing date -
Dec 2, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A monitoring apparatus for the use status of a car radio is disclosed. In addition to the function of identifying a radio station to which the car radio is tuned at any given time, the present apparatus is capable of identifying the individual actually in the driver's seat listening to that radio station, and of measuring the idle time during which the car radio could have been turned ON but actually was not. Also, the present apparatus has a rechargeable battery dedicated thereto, thereby to avoid overloading the vehicle-mounted storage battery used also for engine starter. Moreover, the present apparatus comprises a device for generating an excessive discharge alarm signal when the excessively discharged state of the rechargeable battery is detected. Furthermore, the present apparatus employs the radio station identification based on the detection of local oscillation frequency picked up at the tuner portion, which is in one to one correspondence with a radio station broadcast frequency.
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