Abstract: The present invention is a black clamp circuit for an electronic imager having black reference pixels. The circuit includes an average value circuit determining an average of a number of the black reference pixels, a correction circuit determining the black level correction from the average, and a modifier circuit modifying image pixels with the black level. The average value is used in a real time feedback loop that removes offset errors in the signal processing chain and establishes a corrected black level in output image data. The feedback can be either digital or analog. The correction circuit can include a comparator that allows a hysteresis in the feedback to avoid hunting as well as multiple levels of feedback based on several thresholds. The corrected black level can also be controlled by a digital transfer function. The black clamp circuit can be used for a series of images, an image frame and an image line.

Abstract: An information processing apparatus including: a display that is capable of displaying moving image data in a full screen mode; a first signal processing section that generates a signal for forming the moving image data to be displayed on the display; a second signal processing section that executes image quality processing for the signal generated by the first signal processing section; a determination section that determines whether or not a display mode to display the moving image data is the full screen mode based on a relationship between a screen size of the moving image data and a screen size of the display; and a control section that enables the signal subjected to the image quality processing by the second signal processing section to be output to the display when the determination section determines that the display mode to display the moving image data is the full screen mode.

Abstract: A movement control system useful for an apparatus comprising a movable member movable between two positions, a motor and a sensor device for producing an output value which changes during the movement of the movable member. The control system drives the motor in a first amount so as to move the movable member from one of the two positions to the other position and thereafter drives the motor in a second amount to move the movable member toward said one position when the output value of the sensor device remains unchanged. When the sensor device produces a changed output value, the system drives the motor in a third amount to move the movable member toward said one position. Subsequently, the system drives the motor in a fourth amount when the output value of the sensor device is different from the output value before the motor is driven in the first amount, so as to move the movable member toward said other position.