Thursday, August 22, 2013

Canon Files for Dual-Scale Column-Parallel ADC Patent

Canon's patent application US20130206961 "Solid-State Image Sensing Device" by Ikeda Yasuji, Hashimoto Seiji, Muto Takashi, Matsuno Yasushi, and Yoshida Daisuke describes a dual gain column-parallel ramp ADC (Reference Signal 1 & 2 are the two different scale ramps):


  1. Looks like the magic lantern team beat them to it....

    dated 7/16/2013

  2. Given how long it takes for a patent application to show up, and the time taken to actually create and define the implementation, it's not so likely that Canon was "beaten" to it.


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