Touch input detection with shared receivers
First Claim
1. A system, comprising:
- a first transmitter and a second transmitter coupled to a propagating medium;
a first receiver and a second receiver coupled to the propagating medium, wherein;
the first transmitter transmits a first propagating signal to the first receiver through a first region of the propagating medium;
the first transmitter transmits a second propagating signal to the second receiver through a second region of the propagating medium;
the second transmitter transmits a third propagating signal to the first receiver through a third region of the propagating medium;
the second transmitter transmits a fourth propagating signal to the second receiver through a fourth region of the propagating medium;
the first region is a subset of the third region; and
the fourth region is a subset of the second region; and
a processor configured to identify a touch input to the propagating medium based on one or more of the following;
(1) a determination that the third propagating signal was interfered with while the first propagating signal was not interfered with or (2) a determination that the second propagating signal was interfered with while the fourth propagating signal was not interfered with, wherein an output device in the system updates in response to the touch input to the propagating medium being identified by the processor.
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Abstract
A touch input to a propagating medium is identified based on one or more of the following: (1) a determination that a third propagating signal (from a second transmitter to a first receiver) was interfered with while a first propagating signal (from a first transmitter to the first receiver) was not interfered with or (2) a determination that the second propagating signal (from a first transmitter to a second receiver) was interfered with while the fourth propagating signal (from the second transmitter to the second receiver) was not interfered with. In response to the touch input to the propagating medium being identified, a system which includes the first transmitter, the second transmitter, the first receiver, and the second receiver updates.
315 Citations
20 Claims
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1. A system, comprising:
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a first transmitter and a second transmitter coupled to a propagating medium; a first receiver and a second receiver coupled to the propagating medium, wherein; the first transmitter transmits a first propagating signal to the first receiver through a first region of the propagating medium; the first transmitter transmits a second propagating signal to the second receiver through a second region of the propagating medium; the second transmitter transmits a third propagating signal to the first receiver through a third region of the propagating medium; the second transmitter transmits a fourth propagating signal to the second receiver through a fourth region of the propagating medium; the first region is a subset of the third region; and the fourth region is a subset of the second region; and a processor configured to identify a touch input to the propagating medium based on one or more of the following;
(1) a determination that the third propagating signal was interfered with while the first propagating signal was not interfered with or (2) a determination that the second propagating signal was interfered with while the fourth propagating signal was not interfered with, wherein an output device in the system updates in response to the touch input to the propagating medium being identified by the processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method, comprising:
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using a first transmitter to transmit a first propagating signal to a first receiver through a first region of a propagating medium, wherein the first transmitter, a second transmitter, the first receiver, and a second receiver are coupled to the propagating medium; using the first transmitter to transmit a second propagating signal to the second receiver through a second region of the propagating medium; using the second transmitter to transmit a third propagating signal to the first receiver through a third region of the propagating medium; using the second transmitter to transmit a fourth propagating signal to the second receiver through a fourth region of the propagating medium, wherein;
the first region is a subset of the third region and the fourth region is a subset of the second region; andidentifying a touch input to the propagating medium based on one or more of the following;
(1) a determination that the third propagating signal was interfered with while the first propagating signal was not interfered with or (2) a determination that the second propagating signal was interfered with while the fourth propagating signal was not interfered with, wherein;a system includes the first transmitter, the second transmitter, the first receiver, the second receiver, and an output device; and the output device in the system updates in response to the touch input to the propagating medium being identified. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A computer program product, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:
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using a first transmitter to transmit a first propagating signal to a first receiver through a first region of a propagating medium, wherein the first transmitter, a second transmitter, the first receiver, and a second receiver are coupled to the propagating medium; using the first transmitter to transmit a second propagating signal to the second receiver through a second region of the propagating medium; using the second transmitter to transmit a third propagating signal to the first receiver through a third region of the propagating medium; using the second transmitter to transmit a fourth propagating signal to the second receiver through a fourth region of the propagating medium, wherein;
the first region is a subset of the third region and the fourth region is a subset of the second region; andidentifying a touch input to the propagating medium based on one or more of the following;
(1) a determination that the third propagating signal was interfered with while the first propagating signal was not interfered with or (2) a determination that the second propagating signal was interfered with while the fourth propagating signal was not interfered with, wherein;a system includes the first transmitter, the second transmitter, the first receiver, the second receiver, and an output device; and the output device in the system updates in response to the touch input to the propagating medium being identified.
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Specification