Abstract: A communication device and method to operate a sewing machine (1) based on a bidirectional transmission of data between the sewing machine (1), on the one hand, and a radio-controlled object, in particular a foot control (5) or an allocated radio-controlled module (9) are provided. By way of mutual transmission of identification codes, an unambiguous allocation of sewing machine (1) and the respective radio-controlled objects occur.

Abstract: A device and the method for detecting objects on sewing machines (1) using one or more color sensors (25) in order to detect the colors of objects or of color marks (26) applied on the objects is provided. Such color marks (26) require only little space and can be applied even on very small parts. In a memory (59) accessible by the sewing machine control (57) clear allocations of colors and the respective objects are stored. According to the detected objects connected to the sewing machine (1), the operation of the sewing machine control (57) can be adjusted.

Abstract: A sewing machine having a detection device for movements of objects (13) is provided. Here, a coherent light beam (11) is emitted, scattered on the object (13), and returns to form an interference with the emitted light. For movements of the object (13), a frequency shift of the scattered light is produced due to the Doppler effect, which can be detected and evaluated in the form of intensity fluctuations.

Abstract: The present invention relates to a percutaneous-point determination device for determining a location of a point associated with a surface of an animal organ. The device comprises an ultrasound device configured to emit a focused ultrasound beam along an ultrasound beam axis having a known orientation with respect to the ultrasound device. The ultrasound device is configured to output ultrasound data indicative of a distance from the ultrasound device to the point. A position measurement device is configured to output position data indicative of a location of the ultrasound device. The device includes a computer configured to process the ultrasound data and position data to thereby determine a location of the point.

Abstract: The present invention relates to a percutaneous-point determination device for determining a location of a point associated with a surface of an animal organ. The device comprises an ultrasound device configured to emit a focused ultrasound beam along an ultrasound beam axis having a known orientation with respect to the ultrasound device. The ultrasound device is configured to output ultrasound data indicative of a distance from the ultrasound device to the point. A position measurement device is configured to output position data indicative of a location of the ultrasound device. The device includes a computer configured to process the ultrasound data and position data to thereby determine a location of the point.