Electric device and tire condition monitoring apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Nov 27, 2008
app pub date -
Aug 6, 2007
filing date -
May 24, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A tire condition monitoring apparatus having a transmitter and a receiver is disclosed. The transmitter incorporates a battery having a positive electrode and a negative electrode. The transmitter wirelessly transmits a signal including data representing the condition of a tire of a vehicle using electromotive force produced by the battery. The receiver receives the signal from the transmitter and processes the signal. The transmitter includes a refresh circuit that performs refresh by forcibly supplying an electric current to the positive and negative electrodes of the battery. The transmitter measures the electromotive force of the battery after such refresh. If the electromotive force of the battery has not been recovered, the transmitter sends a notification signal indicating insufficiency of the electromotive force of the battery to the receiver. In response to the notification signal, the receiver announces insufficient capacity of the battery to the driver of the vehicle by means of a warning device.
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