| 摘要 |
In speech recognition phenomena, each phonetic information is contained within major peaks of the sound wave. The longest time period between these major peaks has a time limit according to the lowest pitched voice, which is considered to be 45 cycles per second. Thus any longer time period that may occur between the major peaks is considered as termination point of a spoken word, and a signal is produced to operate the carriage of the typewriter. There is also provided means for preventing repetition of printing phonetic symbols during a spoken word. And further, there is provided means for allowing repetition of phonetic symbols to be typed during a spoken word, when so spoken in some languages.
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