Ultrasonic micro-machined selectable transducer array
First Claim
1. A position tracking system operating in a two dimensional system defined by mutually perpendicular x and y coordinates, the position tracking system comprising:
- a transmitter positioned at a first location for producing a transmitter signal;
a first array of ultrasonic transducers arranged in a first grid pattern;
a second array of ultrasonic transducers arranged in a second grid pattern;
the second array of ultrasonic transducers being offset from the first array of ultrasonic transducers in the x direction;
said plural ultrasonic transducers being responsive to said transmitter signal to produce plural reactive signals corresponding to said transmitter signal as received at respective ones of said plural ultrasonic transducers; and
a computer responsive to said reactive signals from said plural ultrasonic transducers for continuously determining the position of said first and second arrays.
2 Assignments
0 Petitions
Accused Products
Abstract
A position tracking system comprises a transmitter at a first location for producing a signal and an array of plural ultrasonic transducers at a second location arranged in a grid pattern at a plurality of respective discrete locations. The plural ultrasonic transducers are responsive to the signal to produce plural reactive signals corresponding to the signal as received at respective ones of the plural ultrasonic transducers. A computer is responsive to the reactive signals from the plural ultrasonic transducers for continuously determining the position of the array. The ultrasonic transducers are physically separated.
The ultrasonic transducers and spatial light modulators share a common backplane.
-
Citations
12 Claims
-
1. A position tracking system operating in a two dimensional system defined by mutually perpendicular x and y coordinates, the position tracking system comprising:
-
a transmitter positioned at a first location for producing a transmitter signal; a first array of ultrasonic transducers arranged in a first grid pattern; a second array of ultrasonic transducers arranged in a second grid pattern; the second array of ultrasonic transducers being offset from the first array of ultrasonic transducers in the x direction; said plural ultrasonic transducers being responsive to said transmitter signal to produce plural reactive signals corresponding to said transmitter signal as received at respective ones of said plural ultrasonic transducers; and a computer responsive to said reactive signals from said plural ultrasonic transducers for continuously determining the position of said first and second arrays. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A signal responsive device comprising:
an array system of plural ultrasonic transducers and spatial light modulators arranged in a grid pattern at a plurality of respective discrete locations, said plural ultrasonic transducers being responsive to an input signal to produce plural reactive signals corresponding to said input signal as received at respective ones of said plural ultrasonic transducers. - View Dependent Claims (10)
-
11. A signal responsive device operating in a two dimensional system defined by mutually perpendicular x and y, coordinates comprising:
a plurality of n ultrasonic transducers having a mirror layer disposed on a deformable diaphragm layer, said plurality of ultrasonic transducers being formed into an array and spaced from each other in x and y directions, selected ones of said plurality of ultrasonic transducers being formed into subarrays of m ultrasonic transducers.
-
12. A signal responsive device operating in a three dimensional system defined by mutually perpendicular x, y, and z coordinates comprising:
a plurality of n ultrasonic transducers having a mirror layer disposed on a deformable diaphragm layer, said plurality of n ultrasonic transducers being formed into an array and spaced from each other in x and y directions, selected ones of said plurality of ultrasonic transducers being formed into subarrays of m ultrasonic transducers.
Specification