Ultrasonic imaging apparatus for reading and decoding machine-readable matrix symbols
AssigneeDolphiTech AS
InventorsFrank Melands?, Tore Baarstad, Arnt-Børre Salberg, Terje Melands?, Eskil Skoglund
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Abstract
There is provided an apparatus and method for reading matrix codes comprising an ultrasound transducer 20 which comprises transmitter and receiver electrodes, a receiver unit 24 connected to the receiver electrodes for processing the signals received by the receiver electrodes, and a transmitter module 21 connected to the transmitter electrodes, the transmitter module transferring an electronic signal to the transducer, where the signal shape is selected between a number of signal shapes according to the characteristics of the matrix code to be read.
Claims27
Matrix code reading apparatus comprising an ultrasound transducer which comprises transmitter and receiver electrodes, and a receiver unit connected to the receiver electrodes for processing the signals received by the receiver electrodes, wherein further comprising
- a transmitter module connected to the transmitter electrodes, and
- a pulse selection module comprising a number of pulse shapes and a number of features corresponding to the pulse shapes,
- the transmitter module being connected to the pulse selection module, and is transferring an electronic signal to the transducer, where the signal shape is selected based on the features of the matrix code to be read.
Matrix code reading method by means of an ultrasound transducer 20 which comprises transmitter and receiver electrodes, wherein
- transferring an electronic signal to the transmitter electrodes of transducer, where the signal shape is selected between a number of signal shapes according to the characteristics of the matrix code to be read,
- processing signals received by the receiver electrodes in a receiver unit.
Dependencies are inferred from the claim text.