Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2003-01-30
2008-03-25
Burd, Kevin (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C713S182000
Reexamination Certificate
active
07349481
ABSTRACT:
An apparatus and method for communication using sound waves is disclosed. More particularly, orthogonal frequency division multiplexing scheme is used to transmit and receive digital data on sound waves. In one embodiment, the sound waves are used to exchange information. In another aspect, the sound waves are used to authenticate an individual or device.
REFERENCES:
patent: 6130859 (2000-10-01), Sonnenschein et al.
patent: 6607136 (2003-08-01), Atsmon et al.
patent: 6768778 (2004-07-01), Chen et al.
patent: 2001/0055352 (2001-12-01), Bannasch et al.
patent: 2002/0154772 (2002-10-01), Morishita et al.
patent: 2002/0191765 (2002-12-01), Labaton
patent: 2003/0026197 (2003-02-01), Crawford
Jalali Ahmad
Steentra Jack
Amin Turocy & Calvin LLP
Burd Kevin
Qualcomm Incorporated
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