Browse Prior Art Database

Signal Weighting System

IP.com Disclosure Number: IPCOM000096365D
Original Publication Date: 1963-Apr-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Dersh, WC: AUTHOR

Abstract

The system is for weighting input signals from detectors D1...Dn to selectors SW1...Sn according to the array of detector signals IN1 having best match. Best match is indicated by the signal array most nearly approximating a predetermined code array of signals characteristic of a given vocabulary word. The input signals in the signal arrays are derived from speech detectors D1...D . These signals are fed to the appropriate word detectors by keying the characteristic array of sound detector outputs peculiar to a test word to its word identifying input array IN1...INn. Each has its own selector SW1...SWn.

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Signal Weighting System

The system is for weighting input signals from detectors D1...Dn to selectors SW1...Sn according to the array of detector signals IN1 having best match. Best match is indicated by the signal array most nearly approximating a predetermined code array of signals characteristic of a given vocabulary word. The input signals in the signal arrays are derived from speech detectors D1...D . These signals are fed to the appropriate word detectors by keying the characteristic array of sound detector outputs peculiar to a test word to its word identifying input array IN1...INn. Each has its own selector SW1...SWn.

In the drawing, a number of inputs IN...IN and corresponding selectors, switching transistors SW1...SW are provided to indicate best match among certain detector output signal arrays from detectors D1...Dn. For SW1, for instance, the best match selector circuit comprises four parts: a smoothing portion, a selector or signal dump portion, a sampling portion, and a Lock-out- Reset portion. The input measurements are presented to input resistor arrays 1N1...1Nn leading to a loading capacitor C1 during the pickup time of relay RE1. When the measurement time expires, all of the ganged relays RE1...REn are switched and the charge on the capacitor is now dumped into SW1... SWn. However, at this sampling time, when each condense is discharged, there is danger that RE relay contacts may bounce or not close at exactly the same time. To overcome this...