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| Number | Title | Issue Date |
| 4827521 | Training of markov models used in a speech recognition system In a word, or speech, recognition system for decoding a vocabulary word from outputs selected from an alphabet of outputs in response to a communicated word input wherein each word in the vocabulary is represented by a baseform of at least one probabilist... | 05/02/1989 |
| 4819271 | Constructing Markov model word baseforms from multiple utterances by concatenating model sequences for word segments The present invention relates to apparatus and method for segmenting multiple utterances of a vocabulary word in a consistent and coherent manner and determining a Markov model sequence for each segment. A fenemic Markov model corresponds to each label.... | 04/04/1989 |
| 4817156 | Rapidly training a speech recognizer to a subsequent speaker given training data of a reference speaker Apparatus and method for training the statistics of a Markov Model speech recognizer to a subsequent speaker who utters part of a training text after the recognizer has been trained for the statistics of a reference speaker who utters a full training text... | 03/28/1989 |
| 4817158 | Normalization of speech signals A method and a system are disclosed for normalizing a speech signal prior to a speech recognition process. In a preparatory procedure, a sample interval of speech is separated into thirty-one frequency bands and an amplitude histogram is generated for eac... | 03/28/1989 |
| 4791403 | Log encoder/decorder system A high speed form of finite precision binary arithmetic coding comprises encoding/decoding performed in the logarithm domain, resulting in facilitated computation based on additions and subtractions rather than multiplications and divisions. In encoding a... | 12/13/1988 |
| 4785356 | Apparatus and method of attenuating distortion introduced by a predictive coding image compressor The present invention relates to a predictive coding method and related apparatus which (a) computes a value D representing the difference between an original graylevel value for a current pixel and a predicted value for the current pixel; (b) associates ... | 11/15/1988 |
| 4769850 | Pattern recognition system The present invention relates to apparatus for separately extracting circular and linear components in a complex image, the apparatus comprising: (a) a circular filter means for covering a portion of the complex image by filter blocks, wherein the filter ... | 09/06/1988 |
| 4759068 | Constructing Markov models of words from multiple utterances Speech recognition is improved by splitting each feneme string at a consistent point into a left portion and a right portion. The present invention addresses the problem of constructing fenemic baseforms which take into account variations in pronunciation... | 07/19/1988 |
| 4741036 | Determination of phone weights for markov models in a speech recognition system In a speech recognition system, discrimination between similar-sounding uttered words is improved by weighting the probability vector data stored for the Markov model representing the reference word sequence of phones. The weighting vector is derived for ... | 04/26/1988 |
| 4725885 | Adaptive graylevel image compression system Apparatus and method for modelling differential pulse code modulation (DPCM) input data for entropy coding. In particular, the sign and magnitude of one piece of DPCM data after another are modelled to provide a magnitude state input and a sign state inpu... | 02/16/1988 |
| 4718094 | Speech recognition system Speech words are recognized by first recognizing each spectral vector identified by a label (feneme), then identifying the word by matching the string of labels against phones using simplified phone machines based on label and transition probabilities and... | 01/05/1988 |
| 4665520 | Optimistic recovery in a distributed processing system In a distributed system whose state space is partitioned into recovery units, wherein recovery units communicate by the exchange of messages and wherein a message received by a recovery unit may causally depend on other recovery units having received prio... | 05/12/1987 |
| 4570746 | Wind/breath screen for a microphone An effective wind/breath screen for a microphone is described. The wind/breath screen includes a rigid perforated structure for enclosing the microphone. The microphone being physically isolated from the rigid perforated structure by a surrounding pad of ... | 02/18/1986 |
| 4373527 | Implantable, programmable medication infusion system An implantable programmable medication infusion system comprises an implantable portion (2) having a medication reservoir (10) at below body pressure and isolated at its input from the body in which it is implanted by an antechamber (8) the pressure integ... | 02/15/1983 |
| 4319484 | Linear response capacitance wave height measuring system A generated signal is passed through an elongated signal conveying element positioned preferably perpendicular to the surface of a fluid the level of which is to be measured. The signal is directed from the signal conveying element to a detector element w... | 03/16/1982 |
| 4199715 | Method and apparatus for defining an equipotential line or _surface in the earth's atmosphere and measuring the misalignment of a _selected line or plane relative to an equipotential line or surface The present invention relates to a method and apparatus for detecting the earth's static electric field and determining the contour of its equipotential lines and surfaces and for utilizing the detected field as a reference for other measurements. In part... | 04/22/1980 |
| 4184768 | Self-calibrating photoacoustic apparatus for measuring light intensity and light absorption Pulsed light and readily measurable pulsed electrical energy are independently applied to a solid black, conductive sample in a gas-filled photoacoustic cell, each causing the black sample to heat. The heating of the black sample causes a pressure wave in... | 01/22/1980 |
| 4156364 | Ionic conduction angular rate sensor The present invention relates to a sensing device having a chamber containing positive and negative ions, wherein a fluid flow is directed into the chamber and ionized. The ionized flow passes between a plurality of conductive plates, the outputs from whi... | 05/29/1979 |
| 4131013 | Ionic air speed indicator The invention relates generally to measuring the air speed of an object moving within the earth's atmosphere. In particular, the invention provides apparatus which comprises means for causing an air flow to enter an electric E field chamber, proportional ... | 12/26/1978 |
| 4107650 | Error correction encoder and decoder The present invention relates to an apparatus and method for detecting and correcting burst errors of indeterminate length occurring in data entered along a magnetic tape or other storage medium. An encoder and decoder arrangement is provided wherein pari... | 08/15/1978 |
