Transmitter for tire condition monitoring apparatus and the...

Details Transmitter for tire condition monitoring apparatus and the... Transmitter for tire condition monitoring apparatus and the...

2005-08-30

2005-08-30

Hofsass, Jeffery (Department: 2636)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S446000, C340S449000, C340S426330, C340S501000

Reexamination Certificate

active

06937145

ABSTRACT:
A transmitter for a tire condition monitoring apparatus is located in a tire of a vehicle and transmits data indicating the tire condition using a carrier wave. The transmitter includes an oscillating circuit and a controller. The oscillating circuit generates a carrier wave frequency and has a predetermined characteristic carrier wave frequency. The controller corrects the generated carrier wave frequency in accordance with the difference between the characteristic carrier wave frequency and a predetermined reference carrier wave frequency.

REFERENCES:
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patent: 5148122 (1992-09-01), Karlquist
patent: 6091343 (2000-07-01), Dykema et al.
patent: 6092028 (2000-07-01), Naito et al.
patent: 6246317 (2001-06-01), Pickornik et al.
patent: 6271748 (2001-08-01), Derbyshire et al.
patent: 6340930 (2002-01-01), Lin
European Search Report of Application No. EP 03 00 4564 dated Oct. 3, 2003.

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