Transmitter for tire condition monitoring apparatus

Details Transmitter for tire condition monitoring apparatus Transmitter for tire condition monitoring apparatus

2007-05-08

2007-05-08

Pope, Daryl C (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

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

C340S442000, C073S146200

Reexamination Certificate

active

11051083

ABSTRACT:
A transmitter for a tire condition monitoring apparatus includes a pressure sensor for detecting of the internal pressure of a tire, a transmission circuit for generating a transmission signal, and a transmission antenna for transmitting the transmission signal as a radio wave. The transmission antenna is a planar antenna and includes a plate-like transmission conductor for transmitting the radio wave. The transmission antenna is configured such that the radio wave transmitted from the transmission conductor becomes a circularly polarized wave. As a result, the transmitter has a superior transmission performance and a reduced size.

REFERENCES:
patent: 6580363 (2003-06-01), Wilson
patent: 6919799 (2005-07-01), Wilson et al.
patent: 2004/0055371 (2004-03-01), Sanchez et al.
patent: 101 54 335 (2003-05-01), None
patent: 2003-112506 (2003-04-01), None

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