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Canon’s Patent Application for New Sensor to Enhance Autofocus Capabilities

Canon aspires to use stacked sensor technology to improve camera capabilities, especially in regards to autofocusing performance. Stacked CMOS sensor tech is not new – in fact, it can be found on the Sony a9 camera. Additionally, the technology has also been implemented in mobile phones.  Advantages of stacked sensors The “regular” two-layer sensor design uses a layer of pixels and a layer of circuits to process information, but the stacked sensor design includes a third layer of DRAM or temporary storage that can store that information. This layered sensor design has the potential of significantly increasing the read-out speed of the data from the image. This extra speed can be utilized to enhance the processing of complex image information like autofocus, and reduce artifacts like rolling shutter. Canon’s patent application To make the story short and simple, Canon new sensor design is made from four elements: the layered-structure imaging element consists of one chip which contains a pixel portion, a second chip as a drive unit for the pixel portion, a conversion unit to convert the pixels signals into digital signals, and a control information conversion unit. In order to dive deeper, you can refer to the charts and explanation on the application itself.  The chart below illustrates the construction of the imaging apparatus and the imaging elements which are described above. This design has the potential to facilitate and utilize data transfer by significantly improving sensor performance.  So what’s the deal here?  It looks like the main goal here is...

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Published By: Cinema5D - Friday, 12 January

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