| Patent Number |
Title Of Patent |
Date Issued |
| 6761131 |
Apparatus for determining dog's emotions by vocal analysis of barking sounds and method for the |
July 13, 2004 |
| A method of determining a dog's emotions from its voice with objective supports. The invention follows the procedures of converting dog's voices into electrical audio signals, extracting characteristics in a time to frequency component relation map of the audio signals as a input voice |
| 4100370 |
Voice verification system based on word pronunciation |
July 11, 1978 |
| This system verifies the voice of a specific speaker (A) through verification of vocal sounds which form a previously-recorded recognition phrase spoken by A and others. Parallel filters derive a spectral characteristic parameter x.sub.i which contains weighting factors .alpha..sub.i |
| 4078154 |
Voice recognition system using locus of centroid of vocal frequency spectra |
March 7, 1978 |
| A voice recognition system is disclosed using the centroid of frequency spectra obtained by frequency analysis of a voice as the characteristic parameter of the voice. The locus of the centroid is obtained by periodically measuring, during the utterance of a selected phrase, the aver |
| 4060695 |
Speaker identification system using peak value envelop lines of vocal waveforms |
November 29, 1977 |
| Voice verfication of individuals is carried out by utilizing the peak value envelope of voice signals. The voice signal is separated into its positive and negative polarity portions and stepped peak value envelope waveforms are developed from each portion. The latter waveforms are quanti |
| 4060694 |
Speech recognition method and apparatus adapted to a plurality of different speakers |
November 29, 1977 |
| Speech recognition in prior art uses one extracted characteristic component (x.sub.i) to represent one phoneme (X.sub.i) as spoken by one speaker. This invention provides for recognizing the same phoneme as spoken by different speakers, by deriving a group of such components (x.sub.ik), |
| 4054749 |
Method for verifying identity or difference by voice |
October 18, 1977 |
| In a voice verification system, voice parameters which are highly characteristic of particular voices but have only a limited effectiveness life time (such as pitch) are used. The lifetime or similar time indication is recorded along with the original record of the characteristic par |
| 4001492 |
Half tone reproducing process in facsimile |
January 4, 1977 |
| A half tone reproducing circuitry in a facsimile system characterized by circuitry for pulse number modulating the image signal of an image including half tone circuitry for eliminating those pulses from the pulse frequency modulated signal occurring during the white portion of the image |
| 3952167 |
Electromagnetic coupler for use with a telephone set |
April 20, 1976 |
| An electromagnetic coupling device for use with a telephone set having a hand hole in the rear thereof, the coupling device comprising a hollow plug removably insertable in the hand hole; a first winding of wire disposed within the hollow plug for receiving electrical signals from the |
