A portable reading device includes a computing device and a computer readable medium storing a computer program product to receive an image and select a section of the image to process. The product processes the section of the image with a first process and when the first process is finished processing...http://www.google.com.hk/patents/US20050288932?utm_source=gb-gplus-share專利 US20050288932 - Reducing processing latency in optical character recognition for portable reading machine
