Abstract: A system and method is disclosed for embedding information in a printed media. The method discloses using a print production system to apply a first set of physical structures for carrying a first data stream onto a media; and using the print production system to apply a second set of physical structures which both carries a second data stream onto the media and also performs at least one other print production function. The system discloses a printing mechanism for applying a first set of physical structures modulated by a first data stream onto a media, thereby creating a printed media; and a coating mechanism for applying a second set of physical structures modulated by a second data stream onto the printed media, thereby creating a coated printed media.
Type:
Grant
Filed:
May 29, 2009
Date of Patent:
December 4, 2012
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
I-Jong Lin, Paul F. Matheson, Ehud Chatow
Abstract: A system and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources is disclosed. Propagating wave electromagnetic sensors monitor excitation sources in sound producing systems, such as machines, musical instruments, and various other structures. Acoustical output from these sound producing systems is also monitored. From such information, a transfer function characterizing the sound producing system is generated. From the transfer function, acoustical output from the sound producing system may be synthesized or canceled. The methods disclosed enable accurate calculation of matched transfer functions relating specific excitations to specific acoustical outputs. Knowledge of such signals and functions can be used to effect various sound replication, sound source identification, and sound cancellation applications.
Type:
Grant
Filed:
December 2, 1998
Date of Patent:
April 1, 2003
Assignee:
The Regents of the University of California
Inventors:
John F. Holzrichter, Greg C. Burnett, Lawrence C. Ng