Susan Saylor deserves a special mention for finding and posting the Sony patent. Here are excerpts.


United States Patent 6,536,440 Dawson March 25, 2003
Method and system for generating sensory data onto the human neural cortex

Abstract
A non-invasive system and process for projecting sensory data onto the human neural cortex is provided. The system includes a primary transducer array and a secondary transducer array. The primary transducer array acts as a coherent signal source, and the secondary transducer array acts as a controllable diffraction pattern that focuses energy onto the neural cortex in a desired pattern. In addition, the pattern of energy is constructed such that each portion projected into the neural cortex may be individually pulsed at low frequency. This low frequency pulsing is formed by controlling the phase differences between the emitted energy of the elements of primary and secondary transducer arrays.

Inventors:
Dawson; Thomas P. (Escondido, CA) Assignee: Sony Corporation (Tokyo, JP); Sony Electronics, Inc. (Park Ridge, NJ) Appl. No.: 690571 Filed: October 17, 2000

Current U.S. Class:128/897; 128/898 Intern'l Class: A61B 019/00Field of Search: 128/897,898,24

[link to www.mindjustice.org]