Abstract: Various embodiments of the present technology provide a method and apparatus for an image sensor. In various embodiments, the apparatus provides a driver circuit connected to a plurality of electrically distinct pixel groups to provide the pixel groups with a control signal. A delay measurement circuit is connected to the driver circuit and at least one of the pixel groups to measure a time delay of the control signal. A row control circuit is connected to the delay measurement circuit to receive the measured time delay and, in turn, deliver, via the driver circuit, the control signal to all pixel groups in a single row substantially simultaneously.

Abstract: An image sensor may include an image sensor pixel array. The image sensor pixel array may include active image sensor pixels that generate image data based on incident light and reference pixels that are optically black for generating reference data for noise compensation. Sets of reference pixels in the same row may be coupled to respective shared readout paths in a source follower binning configuration. The shared readout path may be could to downstream readout circuits. The use of shared readout paths for the reference pixels can reduce the number of reference pixel readout paths. If desired, pixel circuitry may be implemented on a first die, while readout circuitry and at least a portion of the reference pixel readout paths may be implemented on a second die mounted to the first die.

Abstract: The double-pivot synchronization is characterized in that each leaf is connected to an opening arm by an opening pivot. The other end of the opening arm is connected to a second pivot. This second pivot adds a degree of freedom to the components that are connected to it and thereby, frees them from the constraints imposed by the rotation of the leaves on the hinges. These components can thus be synchronized more easily. The mechanism comprises an arrangement of rigid elements, connected between them and attached to the frame. A first embodiment has a rail and is particularly suitable for manufacturers of furniture and cabinets who use custom-made components. A second embodiment, with rail, is better suited to a shallow frame and simplifies the adjustment to the width of the leaves. A robust and versatile third embodiment has gear teeth and mainly targets walk-through doors and recessed synchronization mechanisms.