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Voice Feedback in Portable Speech Recognition System

IP.com Disclosure Number: IPCOM000096171D
Original Publication Date: 1963-Jan-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Dersch, WC: AUTHOR

Abstract

This device provides an audio feedback loop for monitoring the accuracy of speech recognition machines, especially those of the small, portable type suitable for such purposes as ambulatory inventory inspection. For such applications, the operator of the portable speech recognition machine is enabled to make an inventory recordation in the form of a few code letters and numbers representing the coded items and quantities. Such is without distracting his eyes from the item array and without requiring the use of his hands, for instance, to manipulate a complicated keyboard. The voice feedback devices VFR, in conjunction with voice recognition devices VR and associated recorder R, provides an audio feedback to the operator.

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Voice Feedback in Portable Speech Recognition System

This device provides an audio feedback loop for monitoring the accuracy of speech recognition machines, especially those of the small, portable type suitable for such purposes as ambulatory inventory inspection. For such applications, the operator of the portable speech recognition machine is enabled to make an inventory recordation in the form of a few code letters and numbers representing the coded items and quantities. Such is without distracting his eyes from the item array and without requiring the use of his hands, for instance, to manipulate a complicated keyboard.

The voice feedback devices VFR, in conjunction with voice recognition devices VR and associated recorder R, provides an audio feedback to the operator. This enables verifying the accuracy of both the sound enunciated into the microphone M and the sound actually registered by VR. Delay devices D are provided for the feedback loop to allow for machine analysis time in VR. The upper drawing shows this in block diagram form.

One method of accomplishing this feedback is through use of a cathode ray tube as the feedback generator. In the middle drawing, this is done by inscribing screen CRTS with an array of luminescent soundtrack patterns arranged in a number of rows r, each row corresponding to one code-word pattern. The encoded output of VR is sent to vertical deflection plates VDP and is modified so that each word generates its own vertical defl...