Abstract: This pick-up apparatus for picking up harvested root crop defines a pick-up plane and comprises a pick-up section. The pick-up section comprises a pick-up member adapted to pick up the root crop, and a cleaning member. The pick-up member defines a pick-up position with respect to the pick-up plane. The pick-up apparatus comprises a cleaning adjustment device adapted to adjust the position of the cleaning member between at least two cleaning positions, the cleaning positions being different one from another. In each of the cleaning positions of the cleaning member and while the pick-up member is in the pick-up position, the distance of the cleaning member with respect to the pick-up plane is different from the distance of the cleaning member with respect to the pick-up plane in the other cleaning position.

Abstract: A semiconductor device comprising a substrate and an electronic circuit thereon is described. The electronic circuit comprises a first voltage provider node, a second voltage provider node, and an intermediary node connected to the first and second voltage provider node by a first and second network with a first and second resistance, respectively. The substrate is susceptible to conducting a substrate current. The semiconductor device further comprises a substrate current sensor. The first network is arranged to reduce the first resistance in response to the substrate current sensor signaling an increase of the substrate current and vice versa. Similarly, the second network is arranged to reduce the second resistance in response to the substrate current sensor signaling an increase of the substrate current and vice versa. A method of operating a semiconductor device is also disclosed.

Abstract: This pick-up apparatus for picking up harvested root crop defines a pick-up plane PP and comprises a pick-up section. The pick-up section comprises a pick-up member adapted to pick up the root crop, and a cleaning member. The pick-up member defines a pick-up position with respect to the pick-up plane PP. The pick-up apparatus comprises a cleaning adjustment device adapted to adjust the position of the cleaning member between at least two cleaning positions, the cleaning positions being different one from another. In each of the cleaning positions of the cleaning member and while the pick-up member is in the pick-up position, the distance DC1 of the cleaning member with respect to the pick-up plane PP is different from the distance DC2 of the cleaning member with respect to the pick-up plane PP in the other cleaning position.

Abstract: A semiconductor device comprising a substrate and an electronic circuit thereon is described. The electronic circuit comprises a first voltage provider node, a second voltage provider node, and an intermediary node connected to the first and second voltage provider node by a first and second network with a first and second resistance, respectively. The substrate is susceptible to conducting a substrate current. The semiconductor device further comprises a substrate current sensor. The first network is arranged to reduce the first resistance in response to the substrate current sensor signaling an increase of the substrate current and vice versa. Similarly, the second network is arranged to reduce the second resistance in response to the substrate current sensor signaling an increase of the substrate current and vice versa. A method of operating a semiconductor device is also disclosed.

Abstract: A semiconductor device, comprising a substrate and an electronic circuit formed thereon is described. The substrate is susceptible to conducting a substrate current. The semiconductor device further comprises a substrate current sensor, which comprises a sensing line for sensing the potential at a charge collecting region; a supply node; and a current source connected between the supply node and the charge collecting region. The current source is arranged to inject a stationary current into the charge collecting region when the potential at the charge collecting region is below the supply potential. The sensing line comprises a monoflop, which is arranged to assume an unstable state when the potential at its input has exceeded a threshold and to return to a stable state when the potential at its input has remained below the threshold for at least a time period.

Abstract: In a contact device having at least first and second contact surfaces which may be placed in electrically conducting contact with one another, that improvement which includes a solder-repellent and self-lubricating casing material applied to at least one of said contact surfaces. The solder-repellent contact surface also serves as a stop-off when soldering component leads to terminals of a printed circuit board.

Abstract: A camera, particularly a motion-picture camera, has an action-light at its front side which becomes energized only when the camera shutter is closed.

Abstract: In a sound movie camera, an arrangement comprising a recess in the housing of the camera for accommodating an extendable supporting rod or band at the free end of which is connected a microphone. In a preferred embodiment, the extendable supporting member is accommodated in a grip handle of the movie camera.

Abstract: A motion picture camera of the type having an electrically magnetically operated release. The electric circuit includes a drive circuit and a release circuit as well as a signal circuit connected between the drive circuit and the release circuit. The drive circuit includes an electric motor for driving the film and a normally open drive switch all connected in series with the current source. The release circuit includes a release magnet having an armature and an exciting coil. The armature operates a normally open release switch for closing it upon energization of the exciting coil. The release switch and exciter coil are connected in series with the source. Finally, the signal circuit includes an electro-optic indicator such as an incandescent lamp or light-emitting diode connected in parallel with the exciter coil of the magnet and in series with the motor. As a result, the indicator lights up upon closing of the release switch to produce a light mark on the film before the motor begins to drive the film.

Abstract: An exposure control arrangement for motion picture cameras of the type in which the diaphragm is set in accordance with the amount of light passing through the objective is described. The activation of the diaphragm is automatically effected by photoelectric means which are energized upon closure of the shutter and disabled during exposure of the film.

Abstract: In a movie camera a control frequency generator for producing a picture and sound synchronizing sinusoidal control frequency using a rotating member of the camera such as a running gear made from a soft magnetic material and having a magnetically discontinuous region formed therein, a permanent magnet having one pole thereof placed in the vicinity of the discontinuous region, and a magnetic flux sensing device placed between the region and the pole of the permanent magnet for sensing the flux changes within the magnetic circuit during rotation of the camera gear and thereby producing the synchronizing control frequency.