System for measuring pressure and/or temperature of a tire

Details System for measuring pressure and/or temperature of a tire System for measuring pressure and/or temperature of a tire

2006-10-03

2006-10-03

Noori, Max (Department: 2855)

Measuring and testing

Tire, tread or roadway

Reexamination Certificate

active

07114382

ABSTRACT:
In a system for measuring pressure and/or temperature of a tire, reflectivity of reflectors is significantly enhanced and manufacture is significantly easier, since the system is provided with a board, an antenna provided to the board in order to send/receive a micro-wave to/from an external device, an IDT (inter-digital transducer) provided to the board and transducing the micro-wave into SAW (Surface Acoustic Wave), a waveguide part forming at least one looped channel of a polygonal shape on the board, the polygonal shape comprising a corner located at the IDT, and a plurality of reflectors provided to the at least one looped channel at corners different from the corner located at the IDT.

REFERENCES:
patent: 4542356 (1985-09-01), Nakazawa et al.
patent: 4661738 (1987-04-01), Skeie
patent: 6373167 (2002-04-01), Yoshimoto et al.
patent: 6496086 (2002-12-01), Tsuzuki et al.
patent: 6967545 (2005-11-01), Abramov
patent: 2002/0121132 (2002-09-01), Breed et al.
patent: 2002/0140598 (2002-10-01), Stierlin et al.
patent: 2002/0163402 (2002-11-01), Tsuzuki et al.
patent: WO 99/61265 (1999-12-01), None

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