His credentials stem from being a pioneer in various fields of computing, such as optical character recognition – the technology behind CDs – and automatic speech recognition by machine.

他的确信源于他在电脑各个领域都是先行者，比如光学字符识别（CD背后的科技基础），及机器自动语音识别等领域。

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Optical character recognition is the principal technology of computer intelligence man-machine interface.

机器字符识别是计算机智能化人机接口的关键技术。

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An optical-character-recognition machine for the blind that's capable of reading most types of printed text aloud, the CCD flatbed scanner, speech-recognition software, the first synthesizer that created sounds virtually indistinguishable from those produced by their acoustic counterparts, and a whole bunch of other nifty things we can barely comprehend came from Ray's brain.

CNN: STORY HIGHLIGHTS