At a time that a position detecting device is initiated, an arithmetic processing unit calculates the absolute position of a rotating shaft at the time of initiation, on the basis of first to third analog signals corresponding to first to third angles of rotation, which are detected respectively by first to third rotational angle detectors. During rotation of the rotating shaft, a current position counter detects a current absolute position of the rotating shaft by counting a number of pulses of forward rotation pulses or reverse rotation pulses, corresponding to the first angle of rotation detected by the first rotational angle detector, taking as a standard a total number of pulses corresponding to the absolute position of the rotating shaft at the time of initiation.

At a time that a position detecting device is initiated, an arithmetic processing unit calculates the absolute position of a rotating shaft at the time of initiation, on the basis of first to third analog signals corresponding to first to third angles of rotation, which are detected respectively by first to third rotational angle detectors. During rotation of the rotating shaft, a current position counter detects a current absolute position of the rotating shaft by counting a number of pulses of forward rotation pulses or reverse rotation pulses, corresponding to the first angle of rotation detected by the first rotational angle detector, taking as a standard a total number of pulses corresponding to the absolute position of the rotating shaft at the time of initiation.

A sensor system for sensing movement of an object, including: a first sensor providing a first signal along a first signal path on a semiconductor chip, the first signal being used to determine a first characteristic of the movement; a second sensor providing a second signal along a second signal path on the semiconductor chip, the second signal being used to determine a second characteristic of the movement; and an alarm circuit configured to issue a fault warning when there is a violation of a predefined relationship between the first signal and the second signal based on a missing or additional portion of the first signal or the second signal.

A display system and a method for display control of a gauge graphic is provided. The display system controls the display device to display the gauge graphic. The gauge graphic includes a scale and a needle movable on the scale. The scale includes a first region and a second region. The display system detects a first movement of the needle beyond a first threshold marking on the scale and towards an end of the first region and controls the display device to gradually unmask a first gradation pattern in the second region based on the detected first movement. The display system further detects a second movement of the needle over the second region and controls the display device to change the unmasked first gradation pattern so that the unmasked first gradation pattern flashes with a defined frequency in the second region based on the detected second movement.

A display system and a method for display control of a gauge graphic is provided. The display system controls the display device to display the gauge graphic. The gauge graphic includes a scale and a needle movable on the scale. The scale includes a first region and a second region. The display system detects a first movement of the needle beyond a first threshold marking on the scale and towards an end of the first region and controls the display device to gradually unmask a first gradation pattern in the second region based on the detected first movement. The display system further detects a second movement of the needle over the second region and controls the display device to change the unmasked first gradation pattern so that the unmasked first gradation pattern flashes with a defined frequency in the second region based on the detected second movement.

A sensor system and an alerting unit. The sensor system according to the invention may comprise first sensing element configured to measure a first signal indicative of a velocity of a movement of an object and a second sensing element configured to measure a second signal indicative of a direction of the movement, further comprising an alerting unit configured to issue a warning if a predefined relationship between the first signal and the second signal is being violated. The invention further teaches an alerting unit configured to monitor a predefined relationship between a first signal and a second signal and further configured to issue a warning should the predefined relationship become violated.

A display system and a method for display control of a gauge graphic is provided. The display system controls the display device to display the gauge graphic. The gauge graphic includes a scale and a needle movable on the scale. The scale includes a first region and a second region. The display system detects a first movement of the needle beyond a first threshold marking on the scale and towards an end of the first region and controls the display device to gradually unmask a first gradation pattern in the second region based on the detected first movement. The display system further detects a second movement of the needle over the second region and controls the display device to change the unmasked first gradation pattern so that the unmasked first gradation pattern flashes with a defined frequency in the second region based on the detected second movement.

A display system and a method for display control of a gauge graphic is provided. The display system controls the display device to display the gauge graphic. The gauge graphic includes a scale and a needle movable on the scale. The scale includes a first region and a second region. The display system detects a first movement of the needle beyond a first threshold marking on the scale and towards an end of the first region and controls the display device to gradually unmask a first gradation pattern in the second region based on the detected first movement. The display system further detects a second movement of the needle over the second region and controls the display device to change the unmasked first gradation pattern so that the unmasked first gradation pattern flashes with a defined frequency in the second region based on the detected second movement.

At a time that a position detecting device is initiated, an arithmetic processing unit calculates the absolute position of a rotating shaft at the time of initiation, on the basis of first to third analog signals corresponding to first to third angles of rotation, which are detected respectively by first to third rotational angle detectors. During rotation of the rotating shaft, a current position counter detects a current absolute position of the rotating shaft by counting a number of pulses of forward rotation pulses or reverse rotation pulses, corresponding to the first angle of rotation detected by the first rotational angle detector, taking as a standard a total number of pulses corresponding to the absolute position of the rotating shaft at the time of initiation.

At a time that a position detecting device is initiated, an arithmetic processing unit calculates the absolute position of a rotating shaft at the time of initiation, on the basis of first to third analog signals corresponding to first to third angles of rotation, which are detected respectively by first to third rotational angle detectors. During rotation of the rotating shaft, a current position counter detects a current absolute position of the rotating shaft by counting a number of pulses of forward rotation pulses or reverse rotation pulses, corresponding to the first angle of rotation detected by the first rotational angle detector, taking as a standard a total number of pulses corresponding to the absolute position of the rotating shaft at the time of initiation.