System and methods for detecting debris on a touchscreen system display screen
First Claim
1. Touchscreen electronics for detecting debris on a display screen of a touchscreen system and alerting a user to the presence of the debris, the touchscreen electronics comprising:
- a plurality of transmitters for transmitting beams across the display screen;
a plurality of receivers for detecting the beams from the transmitters and generating receive signals; and
a controller in communication with the transmitters and the receivers and configured to;
analyze a status of the receive signals to detect touch inputs based on one or more of the receivers that detect the transmitted beams within a first time period,analyze a status of the receive signals to detect a possible presence of debris on the display screen based on one or more of the receivers that do not detect the transmitted beams from the transmitters within the first time period, the transmitted beams that are not detected by the one or more receivers within the first time period being stuck broken beams, andif the receive signals suggest the presence of debris on the display screen;
determine a location on or adjacent to the display screen corresponding to the detected debris, andgenerate an alert signal on the display screen to visually instruct a user to clean the location of the display screen corresponding to the detected debris.
1 Assignment
0 Petitions
Accused Products
Abstract
Touchscreen electronics for detecting debris on a display screen of a touchscreen system and alerting a user to the presence of the debris broadly comprises a plurality of transmitters, a plurality of receivers, and a controller. Each transmitter may transmit at least one beam across the display screen. The receivers may detect the beams from the transmitters, and each receiver may generate a receive signal. The controller communicates with the transmitters and the receivers and may be configured to analyze the receive signals to determine if debris may be present on the display screen. If so, then the controller may generate an alert signal to indicate that the display screen needs to be cleaned or examined.
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Citations
33 Claims
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1. Touchscreen electronics for detecting debris on a display screen of a touchscreen system and alerting a user to the presence of the debris, the touchscreen electronics comprising:
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a plurality of transmitters for transmitting beams across the display screen; a plurality of receivers for detecting the beams from the transmitters and generating receive signals; and a controller in communication with the transmitters and the receivers and configured to; analyze a status of the receive signals to detect touch inputs based on one or more of the receivers that detect the transmitted beams within a first time period, analyze a status of the receive signals to detect a possible presence of debris on the display screen based on one or more of the receivers that do not detect the transmitted beams from the transmitters within the first time period, the transmitted beams that are not detected by the one or more receivers within the first time period being stuck broken beams, and if the receive signals suggest the presence of debris on the display screen; determine a location on or adjacent to the display screen corresponding to the detected debris, and generate an alert signal on the display screen to visually instruct a user to clean the location of the display screen corresponding to the detected debris. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for detecting debris on a display screen of a touchscreen system and alerting a user to the presence of the debris, the method comprising the steps of:
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a) transmitting a plurality of beams from a plurality of transmitters to a plurality of receivers; b) detecting the beams from the transmitters and generating receive signals; c) analyzing a status of the receive signals to detect touch inputs based on one or more of the receivers that detect the transmitted beams within a first time period; d) analyzing a status of the receive signals to detect a possible presence of debris on the display screen based on one or more of the receivers that do not detect the beams from the transmitters within the first time period, the transmitted beams that are not detected by the one or more receivers within the first time period being stuck broken beams; e) determining a location on or adjacent to the display screen corresponding to the detected debris, if the receive signals suggest the presence of debris on the display screen; and f) generating an alert signal on the display screen to visually instruct a user to clean the location of the display screen corresponding to the detected debris, if the receive signals suggest the presence of debris on the display screen. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for detecting debris on a display screen of a touchscreen system and alerting a user to the presence of the debris, the method comprising the steps of:
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a) transmitting a plurality of beams from a plurality of transmitters to a plurality of receivers; b) detecting the beams from the transmitters and generating receive signals; c) analyzing a status of the receive signals to detect touch inputs based on one or more of the receivers that detect the transmitted beams within a first time period; d) analyzing a status of the receive signals to detect a plurality of stuck broken beams based on one or more of the receivers that do not detect the transmitted beams from the transmitters within a first time period; e) determining a location on or adjacent to the display screen corresponding to a position of the stuck broken beams; and f) generating an alert signal on the display screen to visually instruct a user to clean the location of the display screen corresponding to the detected debris. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification