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US 8,508,103 B2Granted
Piezoelectric identification device and applications thereof
AssigneeSonavation, Inc.
InventorsRainer M. Schmitt, Christian Liautaud
Life of this patent
Estimating the term…
Abstract
Provided is a transducer having first and second surfaces including first electrode lines positioned along the first surface in a first direction and configured for grounding and second electrode lines positioned along the second surface in a direction orthogonal to the first direction. The second electrode lines are configured switching between receiving and transmitting in an interlaced manner.
Claims6
A transmitting and receiving sonic transducer,
- comprising:
- a two dimensional array of sensor elements, wherein each sensor element within said array is separately addressable via electronic control;
- and wherein each sensor element is capable of transmitting during a first time interval and alternatively receiving during a second time interval, as directed via said electronic control;
- and wherein
- a first set of sensor elements are selected to form a first pattern within said array and a second set of elements are selected to form a second pattern within said array;
- and wherein
- said first pattern and said second pattern each form groups of sensor elements that are mutually exclusive and that are proximate to each other;
- and wherein
- control electronics are configured to control said first set of sensor elements to transmit and to not receive during a first set of one or more selected time intervals, and said control electronics are configured to control said second set of sensor elements to receive and to not transmit during a second set of one or more selected time intervals, and wherein
- said first set of selected time intervals to not overlap in time with any of said second set of time intervals.
7 more elements
Dependencies are inferred from the claim text.