苹果自研一颗关键芯片

Core Viewpoint - Apple is developing a new global shutter technology for mobile cameras that allows for capturing clearer motion images and reducing flicker, enhancing video quality [2][3]. Summary by Sections Patent Overview - Apple has introduced a patent for a "stacked pixel image sensor with high dynamic range and low noise," which lays the groundwork for a camera capable of capturing entire scenes instantaneously [2][3]. Technical Explanation - The global shutter technology captures each pixel simultaneously, avoiding the distortion caused by rolling shutters that read images line by line [3][5]. - Each pixel in the proposed design consists of three layers: a light-collecting layer, a small buffer layer, and a micro-meter that converts light into numerical values [5][7]. Unique Features - Apple's design stacks components vertically rather than horizontally, optimizing space and light collection, which is a departure from existing designs that place buffers next to light sources [9]. - The patent includes protective structures for the buffer layer, ensuring clearer captured images with less stray light [9][12]. Functionality and Applications - The image sensor can operate in both rolling shutter and global shutter modes, with the global shutter preferred for high-speed photography to avoid color and tone variations [15][16]. - The technology is applicable across various electronic devices, including smartphones, tablets, and security systems, enhancing their imaging capabilities [13][14]. Advantages - The design reduces the number of components needed for the image sensor, potentially increasing pixel density and reducing space requirements [17]. - The internal charge storage area allows for temporary storage of pixel charges, facilitating global shutter operation without additional external storage components [16][17].