Tow, R. "Methods and Means for Embedding Machine Readable Digital Data in Halftone Images" - U.S. Patent no. 5,315,098, May 1994. This is the basic "Smart Paper" (TM) / DataGlyph (TM) patent)
The following patents describe the technology - a degenerate case of the Halftone case above - used in DataGlyph (TM), as incorporated in Xerox's Paperworks(TM).
Bloomberg, D., Tow, R. - "Adaptive Scaling for Decoding Spatially Periodic Self-clocking Glyph Shape Codes" - U.S. Patent no. 5,091,966, February 1992. This was the first "Smart Paper" (TM) patent to issue.
Bloomberg, D., Hect, D., Flores, P., Tow, R. - "Self-clocking Glyph Shape Codes " - U.S. Patent no. 6076738, June, 2000.
Smith, Z, Street, R., Tow, R. - "Spectral Resolving and Sensing Apparatus" - U.S. Patent No. 5,037,201, August 1991. This the first design for a page scanner that scans spectra, and emits CIE triplets - it is inherently perceptually correct.
Tow, R. "Affect-based Robot Communication Methods and Systems" - U.S. Patent No 5,832,189, November, 1998. The major prior art cited was Charles Darwin's "The Expression of the Emotions in Man and Animals"!
Tow, R. "Affect-based Robot Communication Methods and Systems" - U.S. Patent No 6038493, March, 2000. This was a continuation of the first robot patent above, citing claims related to actual bodies in space as opposed to simulated bodies.
Tow, R., Rahimi, A., Saunders S., Charnley, D., Kotik, G - "Video Stream Representation and Navigation Using Inherent Data", U.S. Patent No 7,266,771, September, 2007. A method of presenting navigation info through stored video taking advantage of pre-computed MPEG motion vectors displayed in a perceptually tuned fashion (e.g., a browse bar of hue/saturation/lightness values).
Tow, R., Smith, R., Scott, G., Meike, R - "Chemical Modification of An Object", U.S. Patent No 7,321,307, January, 2008. A new method of providing time coursed activation/deactivation of RFID and other mechanisms.
Goldman, R., Tow, R., Smith, R. – "Organizing Communications in a Network", U.S. patent No 7697488, April 2010. A decentralized swarm intelligence method for emergent timing of sparse communication windows in wireless networks.
Nolan, J., Smith, R., Tow, R. - "Method and Apparatus for Spatially Stationary Software on Mobile Devices", U.S. patent No 7761906, July 2010. Software as a ghost-like presence of place - locus genii!
Tow, R., Smith, R., Scott, G., Meike, R - "Chemical Modification
of An Object", U.S. Patent No 7,321,307, January, 2008. A new
method of providing time coursed activation/deactivation of RFID
and other mechanisms.
Goldman, R., Tow, R., Smith, R. – "Organizing Communications in a
Network", U.S. patent No 7697488, April 2010. A decentralized
swarm intelligence method for emergent timing of sparse
communication windows in wireless networks.
Nolan, J., Smith, R., Tow, R. - "Method and Apparatus for
Spatially Stationary Software on Mobile Devices", U.S. patent No
7761906, July 2010. Software as a ghost-like presence of
place - locus genii!
Smith, R., Tow, R. - "Method for Detecting Objects Separated from
a Group", U.S. patent No 7538670, May 2009. A swarm
intelligence approach to theft detection, using sensor network
"motes".
Smith, R, Tow, R. - "Method and Apparatus for Transferring
Digital Content", U.S. patent No 8659546, January 2014. A
gesture based UI method for provisioning digital content.
Hughes, J., Tow, R. – "Method and Apparatus for Secure Information Distribution", U.S. patent No 9015075. A wireless tamper respondent crypto key device using MEMS accelerometers for a gesture interface.