Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2006-10-06
2008-11-25
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C178S018010, C310S31300R, C310S334000
Reexamination Certificate
active
07456825
ABSTRACT:
A touch sensor having an acoustic substrate, an acoustic transducer, and an acoustically diffractive grating is provided. The grating is disposed between the transducer and the substrate, so that acoustic energy from the transducer is coupled to an acoustic wave propagating along the surface of the substrate. If used in a display device, the combination of the transducer and grating may provide a low profile that allows the assembly to be more easily placed between the acoustic substrate and a bezel placed in front of the substrate. No acoustic components need be mounted on the rear surface of the substrate, allowing the acoustic substrate to be formed on the front surface of the display device.
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International Search Report for International Application No. PCT/US2004/016908, mailed Feb. 9, 2005.
Adler Robert
Copper Charles Dudley
Kent Joel C.
Hjerpe Richard
Pervan Michael
Tyco Electronics Corporation
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