Method for locating an impact on a surface and device therefor
First Claim
1. A computer program product implemented by a computer system, the computer program product comprising a computer readable storage medium and a computer program mechanism embedded therein, the computer program mechanism comprising:
- instructions for measuring at least one sensed signal from one or more acoustic waves generated by an impact on a surface of an object forming an acoustic interface, the surface provided with at least one acoustic sensor;
instructions for localizing a position of said impact on said surface by processing of said at least one sensed signal, the processing characterized by a comparison of a sensed signal in the at least one sensed signal with at least one predetermined signal in a plurality of predetermined signals, whereineach respective predetermined signal in said plurality of predetermined signals corresponds to an active zone in a plurality of active zones on said surface, andeach respective predetermined signal in said plurality of predetermined signals represents a signal that is sensed when a reference impact is generated on the active zone in said plurality of active zones that corresponds to the respective predetermined signal, and wherein,the position of the impact is associated with an active zone in said plurality of active zones by said localizing when the sensed signal is sufficiently similar to said predetermined signal corresponding to the active zone.
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Accused Products
Abstract
Apparatus and methods for locating an impact point on a surface of an object. The object is provided with an acoustic sensor that senses the impact from the acoustic waves that are generated when the object is subjected to the impact. The location of the impact on the surface of the object is determined by a recognition step that includes a comparison of the sensed signal to one or more predetermined signals. Each predetermined signal represents an active zone on the surface of the object. A predetermined signal corresponds to the sensed signal when the impact causing the sensed signal is generated in the active zone represented by the predetermined signal. The impact is associated with the active zone represented by a predetermined signal when the sensed signal and the predetermined signal sufficiently correspond to each other.
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Citations
50 Claims
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1. A computer program product implemented by a computer system, the computer program product comprising a computer readable storage medium and a computer program mechanism embedded therein, the computer program mechanism comprising:
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instructions for measuring at least one sensed signal from one or more acoustic waves generated by an impact on a surface of an object forming an acoustic interface, the surface provided with at least one acoustic sensor; instructions for localizing a position of said impact on said surface by processing of said at least one sensed signal, the processing characterized by a comparison of a sensed signal in the at least one sensed signal with at least one predetermined signal in a plurality of predetermined signals, wherein each respective predetermined signal in said plurality of predetermined signals corresponds to an active zone in a plurality of active zones on said surface, and each respective predetermined signal in said plurality of predetermined signals represents a signal that is sensed when a reference impact is generated on the active zone in said plurality of active zones that corresponds to the respective predetermined signal, and wherein, the position of the impact is associated with an active zone in said plurality of active zones by said localizing when the sensed signal is sufficiently similar to said predetermined signal corresponding to the active zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A computer program product implemented by a computer system, the computer program product comprising a computer readable storage medium and a computer program mechanism embedded therein, the computer program mechanism comprising:
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instructions for measuring a sensed signal caused by an impact on a surface of an object, wherein said surface is delineated into a plurality of active zones; instructions for comparing said sensed signal with a library of predetermined signals, each predetermined signal in said library of predetermined signals corresponding to an active zone in said plurality of active zones;
whereinwhen a correspondence between said sensed signal and a respective predetermined signal in said library of predetermined signals is sufficiently similar, a location of said impact is deemed to be in an active zone corresponding to said respective predetermined signal. - View Dependent Claims (28, 29, 30, 31)
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32. A computer comprising one or more digital signal processors and a memory, the memory storing a measurement module and a comparison module, wherein:
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the measurement module comprises instructions, executed by the one or more digital signal processors, for receiving a measurement of a sensed signal, the sensed signal representative of an acoustic wave generated by an impact on a surface of an object, wherein said surface is delineated into a plurality of active zones; and the comparison module comprises instructions, executed by the one or more digital signal processors, for comparing said sensed signal to a predetermined signal in a library of predetermined signals;
wherein, when said sensed signal is substantially similar to said predetermined signal, a location of the impact on said surface is deemed to be in an active zone corresponding to the predetermined signal, wherein an indication of the location of the impact is communicated to a memory or a display. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A system comprising:
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an object having a surface forming an acoustic interface, wherein said surface is delineated into a plurality of active zones; at least one acoustic sensor in communication with said surface such that one or more acoustic waves generated by an impact on said surface can be detected by said at least one acoustic sensor; and a processor comprising; instructions for receiving one or more measurements by said at least one acoustic sensor, said one or more measurements comprising a sensed signal from said one or more acoustic waves generated by said impact on said surface; and instructions for comparing said sensed signal to a predetermined signal in a library of predetermined signals;
wherein, when said sensed signal is substantially similar to said predetermined signal, a location of the impact on said surface is deemed to be in an active zone corresponding to the predetermined signal. - View Dependent Claims (47, 48, 49, 50)
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Specification