Camera device, base unit, computation device, and corresponding methods and computer programs

1. A camera device comprising:

a magnetic attachment mechanism for attaching the camera device to a display surface of a monitor;

a camera sensor for generating image data;

an ultrasound emitter configured to emit ultrasound signals at least towards a base unit for the camera device;

wireless communication circuitry for providing the image data wirelessly to a computation device, and

control circuitry configured to detect an attachment of the camera device to the display surface of the monitor, the control circuitry being configured to control the ultrasound emitter to emit the ultrasound signals in response to the detection of the attachment.

2. The camera device according to claim 1 , wherein the control circuitry is configured to detect the attachment using an accelerometer of the camera device.

3. The camera device according to claim 1 , comprising a battery and a charging mechanism for charging the camera device when the camera device is placed on a corresponding base unit.

4. The camera device according to claim 1 , wherein a shape of the camera device is form-fit to a shape of a corresponding base unit for the camera device.

5. The camera device according to claim 1 , wherein the camera device is a wireless webcam.

6. The camera device according to claim 1 , comprising control circuitry, the control circuitry being configured to provide the image data wirelessly to the computation device via the wireless communication circuitry.

7. The camera device according to claim 6 , wherein the control circuitry is configured to provide the image data to the computation device via a base unit of the camera device.

8. A base unit for a camera device, the base unit comprising:

a structural component for removably holding the camera device;

a charging mechanism for charging the camera device when the camera device is held by the structural component;

two or more ultrasound sensors for receiving ultrasound signals from the camera device;

wireless communication circuitry for wirelessly communicating with the camera device; and

control circuitry configured to receive image data from the camera device via the wireless communication circuitry, and to provide the image data to a computation device via interface circuitry of the base unit,

wherein the control circuitry is further configured to determine a position of the camera device relative to the base unit based on the received ultrasound signals, and to provide information on the position of the camera device to the computation device via the interface circuitry.

9. The base unit according to claim 8 , wherein the base unit is arranged at a known position relative to a display surface of a monitor, wherein the control circuitry is configured to determine the position of the camera device relative to the display surface of the monitor.

10. The base unit according to claim 8 , wherein the two or more ultrasound sensors are two or more microphones, wherein the control circuitry is configured to provide a sound recording recorded via the two or more microphones to the computation device via the interface circuitry.

11. The base unit according to claim 8 , comprising an attachment mechanism for attaching the base unit to a frame of a monitor.

12. The base unit according to claim 8 , wherein the computation device is a laptop computer, wherein the base unit is integrated within a frame of a monitor of the laptop computer.

13. The base unit according to claim 8 , wherein the structural component is form-fit for holding the camera device.