A means and method for checking a value document of at least one irregularity of at least one specified type, in which an ultrasound data record is captured which describes in locally resolved fashion at least one ultrasound property, a deviation data record is ascertained which describes in locally resolved fashion a deviation between the ultrasound data record and a model and is ascertained such that the deviation described thereby is minimal with respect to the model. The model comprises a model for the location dependence of the at least one ultrasound property of reference value documents of the specified value document type without irregularities of the at least one specified type, and using the deviation data record, it is checked whether an indication of an irregularity of the at least one type is present on the value document.

A means and method for checking a value document of at least one irregularity of at least one specified type, in which an ultrasound data record is captured which describes in locally resolved fashion at least one ultrasound property, a deviation data record is ascertained which describes in locally resolved fashion a deviation between the ultrasound data record and a model and is ascertained such that the deviation described thereby is minimal with respect to the model. The model comprises a model for the location dependence of the at least one ultrasound property of reference value documents of the specified value document type without irregularities of the at least one specified type, and using the deviation data record, it is checked whether an indication of an irregularity of the at least one type is present on the value document.

A sound wave sensor, capable of reliably detecting presence or absence of a banknote very easily with use of sound waves, is provided. The sound wave sensor includes a sounding body 2 that outputs a sound wave signal of a predetermined frequency, an echo body 3 opposed to the sounding body 2 in a direction in which the sounding body 2 outputs the sound wave signal, the echo body 3 being provided at a position where the sound wave signal resonates at the predetermined frequency; a slit 5 through which a sheet-like banknote 4 passes, the slit 5 being provided between the sounding body 2 and the echo body 3; and a resonance determination unit 6 that determines a resonant state of the frequency output from the sounding body 2. The resonance determination unit 6 determines a resonant state by detecting variation in power consumption of the sounding body 2.

A sound wave sensor, capable of reliably detecting presence or absence of a banknote very easily with use of sound waves, is provided. The sound wave sensor includes a sounding body 2 that outputs a sound wave signal of a predetermined frequency, an echo body 3 opposed to the sounding body 2 in a direction in which the sounding body 2 outputs the sound wave signal, the echo body 3 being provided at a position where the sound wave signal resonates at the predetermined frequency; a slit 5 through which a sheet-like banknote 4 passes, the slit 5 being provided between the sounding body 2 and the echo body 3; and a resonance determination unit 6 that determines a resonant state of the frequency output from the sounding body 2. The resonance determination unit 6 determines a resonant state by detecting variation in power consumption of the sounding body 2.

A method for supplying measuring data of a value-document processing apparatus for processing value documents of stipulated different processing types, has a sensor device, a control device, and a display device. Data sets are read, which respectively contain, for at least two of the processing types, processing-type data by means of which the processing types can be distinguished and the number of the value documents of the respective processing type that are to be fed to the value-document processing apparatus, and display data for actuating the display device are so established from the data sets that, upon actuation with the display data, the display device displays the processing types and the numbers of the value documents. The display device is actuated with the display data, and measuring data are respectively captured by means of the sensor device in accordance with the displayed processing types.

A method for supplying measuring data of a value-document processing apparatus for processing value documents of stipulated different processing types, has a sensor device, a control device, and a display device. Data sets are read, which respectively contain, for at least two of the processing types, processing-type data by means of which the processing types can be distinguished and the number of the value documents of the respective processing type that are to be fed to the value-document processing apparatus, and display data for actuating the display device are so established from the data sets that, upon actuation with the display data, the display device displays the processing types and the numbers of the value documents. The display device is actuated with the display data, and measuring data are respectively captured by means of the sensor device in accordance with the displayed processing types.

The present invention relates to an ultrasonic sensor for detecting double sheets and a method of detecting double sheets using the same, in which in configuring the ultrasonic sensor for detecting double sheets of banknotes passing through a transfer path, the ultrasonic sensor is configured to include an ultrasonic wave generator and an ultrasonic wave receiver provided in pair to face each other in a direction perpendicular to a transfer direction of the banknotes with the transfer path for transferring the banknotes interposed therebetween, and periodicity of a reception signal detected by the ultrasonic wave receiver is determined to detect whether a zero sheet, a single sheet or double sheets of the banknotes pass through the transfer path according to generation or not of the periodic signal and/or a frequency of the generation.

The present invention relates to an ultrasonic sensor for detecting double sheets and a method of detecting double sheets using the same, in which in configuring the ultrasonic sensor for detecting double sheets of banknotes passing through a transfer path, the ultrasonic sensor is configured to include an ultrasonic wave generator and an ultrasonic wave receiver provided in pair to face each other in a direction perpendicular to a transfer direction of the banknotes with the transfer path for transferring the banknotes interposed therebetween, and periodicity of a reception signal detected by the ultrasonic wave receiver is determined to detect whether a zero sheet, a single sheet or double sheets of the banknotes pass through the transfer path according to generation or not of the periodic signal and/or a frequency of the generation.

A method is for examining a sheet-shaped or card-shaped value document with a security feature having one or more cavities configured in the value document. The width of the cavity or cavities is in at least one respectively specified direction exceeding 10 m. Transmission values are established in a locally resolved manner for the transmission of ultrasound in a specified frequency range. In employing the transmission values, it is checked whether a specified number of transmission values is greater than a specified transmission threshold value.

A method is for examining a sheet-shaped or card-shaped value document with a security feature having one or more cavities configured in the value document. The width of the cavity or cavities is in at least one respectively specified direction exceeding 10 m. Transmission values are established in a locally resolved manner for the transmission of ultrasound in a specified frequency range. In employing the transmission values, it is checked whether a specified number of transmission values is greater than a specified transmission threshold value.