Latency measuring device

A - Human Necessities – 61 – B

Patent

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A61B 5/16 (2006.01) A61B 5/12 (2006.01) G10L 11/02 (2006.01)

Patent

CA 2657732

A device which uses an input of speech and measures latency between stimulus and response. The device generally includes an input transducer for converting a stimulus speech sound into an electrical signal and transmits the electrical signal to an electric circuit. In the preferred embodiment, the electric circuit includes a central processing unit which utilizes delay time counters to measure the length of time between signals. A second input transducer is used to convert a response speech sound into an electrical signal and transmits the electrical signal to the electric circuit. Each input transducer operates on a separate channel, so that the central processing unit may easily distinguish between stimulus sounds and response sounds.

L'invention concerne un dispositif utilisant une entrée de parole et mesurant une latence entre un stimulus et une réponse. Le dispositif comporte généralement un transducteur d'entrée pour convertir un son de parole de stimulus en un signal électrique et transmet le signal électrique à un circuit électrique. Dans le mode de réalisation préféré, le circuit électrique comporte une unité centrale de traitement qui utilise des compteurs de temps de retard pour mesurer la longueur de temps entre des signaux. Un second transducteur d'entrée est utilisé pour convertir un son de parole de réponse en un signal électrique et transmet le signal électrique au circuit électrique. Chaque transducteur d'entrée fonctionne sur un canal séparé de telle sorte que l'unité centrale de traitement peut facilement distinguer entre des sons de stimulus et des sons de réponse.

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