CHANNEL WAVEGUIDE SYSTEM FOR SENSING TOUCH AND/OR GESTURE
First Claim
Patent Images
1. An apparatus comprising:
- at least one channel waveguide, wherein, at least a portion of the channel waveguide is disposed within a viewing area of an interactive display, proximate to and substantially parallel to a user interface surface of the interactive display;
a source of a first signal input to the channel waveguide;
at least one detector configured to receive, from the channel waveguide, a second signal corresponding to the first signal, and to output a third signal indicative of a position of an object proximate to the channel waveguide.
2 Assignments
0 Petitions
Accused Products
Abstract
This disclosure relates to a channel waveguide, at least a portion of which is disposed within a viewing area of an interactive display, proximate to and substantially parallel to a user interface surface of the interactive display. A source of a first electromagnetic or acoustic signal is input to the channel waveguide. At least one detector is configured to receive, from the channel waveguide, a second signal corresponding to the first signal and to output a third signal indicative of a position of an object proximate to the channel waveguide.
32 Citations
25 Claims
-
1. An apparatus comprising:
-
at least one channel waveguide, wherein, at least a portion of the channel waveguide is disposed within a viewing area of an interactive display, proximate to and substantially parallel to a user interface surface of the interactive display; a source of a first signal input to the channel waveguide; at least one detector configured to receive, from the channel waveguide, a second signal corresponding to the first signal, and to output a third signal indicative of a position of an object proximate to the channel waveguide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. An apparatus comprising:
-
means for light propagation, the light being in an evanescent state, wherein, at least a portion of the means for light propagation is disposed within a viewing area of an interactive display, proximate to and substantially parallel to the user interface surface, and the means for light propagation has a longitudinal axis, the light being constrained by the light propagation means to propagate only along the longitudinal axis; a source of a first signal input to the channel waveguide; at least one detector configured to receive, from the channel waveguide, a second signal corresponding to the first signal and to output a third signal indicative of a position of an object proximate to the channel waveguide. - View Dependent Claims (20, 21, 22)
-
-
23. A computer-readable storage medium having stored thereon instructions which, when executed by a processor, cause the processor to perform operations, the operations comprising:
-
receiving, at the processor an output signal of at least one detector; and determining, with the processor, a position of an object with respect to an interactive display, the display having a user interface surface including a viewing area;
wherein;at least a portion of the channel waveguide is disposed within the viewing area, proximate to and substantially parallel to the user interface surface; and the output signal results from (i) inputting to the channel waveguide, from a source, a first electromagnetic or acoustic signal;
(ii) receiving, by at least one detector, from the waveguide channel, a second signal corresponding to the first signal; and
(iii) outputting, to the processor, from the at least one detector, the output signal. - View Dependent Claims (24, 25)
-
Specification