摘要:
A method, computer program, and system for real-time signal analysis providing characterization of temporally-evolving densities and distributions of signal features of arbitrary-type signals in a moving time window by tracking output of order statistic filters (also known as percentile, quantile, or rank-order filters). Given a raw input signal of arbitrary type, origin, or scale, the present invention enables automated quantification and detection of changes in the distribution of any set of quantifiable features of that signal as they occur in time. Furthermore, the present invention's ability to rapidly and accurately detect changes in certain features of an input signal can also enable prediction in cases where the detected changes associated with an increased likelihood of future signal changes.
摘要:
A method for providing auditory correction for a hearing-impaired individual, including extracting pitch, voicing, energy and spectrum characteristics of an input speech signal. The method also includes modifying the extracted pitch characteristic by multiplying a pitch factor times the extracted pitch characteristic, modifying the extracted voicing characteristic by multiplying a voicing factor times the extracted voicing characteristic, modifying the extracted energy characteristic by applying a compression function to the extracted energy characteristic, and modifying the extracted spectrum characteristic by applying a homothetical compression function to the extracted spectrum characteristic. Further, a speech signal is reconstituted perceptible to the hearing-impaired individual based on the modified pitch, voicing, energy and spectrum characteristics.
摘要:
A navigation system of a hybrid car retrieves a route to detect whether any restricted area forbidden for automobiles that emit exhaust gases is on the route or not. Before the hybrid car arrives at the restricted area, an electric motor is driven by a gasoline engine portion to charge a battery portion. After the hybrid car arrives at the restricted area, only the electric motor is operated by electric power of the battery portion so that the hybrid car can pass through the restricted area. As a result, the hybrid car can arrive at a destination by the shortest distance without bypassing the restricted area, and the environment of the restricted area can be protected because the gasoline engine portion is not operated in the restricted area.
摘要:
Methods and apparatus for performing translation between different language are provided. The present invention includes a translation system that performs translation having increased accuracy by providing a three-dimensional topical dual-language database. The topical database includes a set of source-to-target language translations for each topic that the database is being used for. In one embodiment, a user first selects the topic of conversation, then words spoken into a telephone are translated and produced as synthesized voice signals from another telephone so that a near real-time conversation may be had between two people speaking different languages. An additional feature of the present invention is the addition of a computer terminal that displays the input and output phrases so that either user may edit the input phrases, or indicate that the translation was ambiguous and request a rephrasing of the material.
摘要:
A method for adjusting a speech menu interface in a speech recognition system. The method can include a series of steps which can include identifying one or more menu items from a data structure in memory for presentation using the speech menu interface. The step of retrieving the one or more menu items from the data structure can be included. Also, the step of reading at least one attribute corresponding to the one or more menu items with menu item criteria can be included. Based on the comparing step, the method can include selecting a presentation style for presentation of the one or more menu items using the speech menu interface.
摘要:
In a method for manufacturing an organic EL element, a low-resistance conductive layer is formed on an electrode of an organic EL element formed on a substrate in a state in which the substrate is at a temperature not higher than the freezing point so that no abnormal current nor short circuit occurs on the organic EL element when applying a voltage to it.
摘要:
An audio signal compression apparatus for compressively coding an input audio signal comprises a time-to-frequency transformation unit for transforming the input audio signal to a frequency domain signal; a spectrum envelope calculation unit for calculating a spectrum envelope having different resolutions for different frequencies, from the input audio signal, using a weighting function on frequency based on human auditory characteristics; a normalization unit for normalizing the frequency domain signal using the spectrum envelope to obtain a residual signal; a power normalization unit for normalizing the residual signal by the power; an auditory weighting calculation unit for calculating weighting coefficients on frequency, based on the spectrum of the input audio signal and human auditory characteristics; and a multi-stage quantization device having plural stages of vector quantizers connected in series, to which the normalized residual signal is input, and at least one of the vector quantizers quantizing the residual signal using the weighting coefficients. Therefore, a low frequency band, which is auditively important, can be analyzed with a higher frequency resolution as compared with a high frequency band, whereby efficient signal compression utilizing human auditory characteristics is realized.
摘要:
A linear predictive speech encoding method combines vector quantization with the search for roots of LSP polynomials. At Under this method, a code book searchable using line spectral pair (LSP) values is created from a line spectral frequency (LSF) code book, thus ensuring linear distortion performance without the costly run-time complexity of finding roots to high-order LSP polynomials in the LSF domain.
摘要:
A system for acquiring map information reliably even when a vehicle is running in a blind area where the map information is not acquirable in real time, assisting the vehicle to keep running smoothly. In this system, necessary map information can be acquired from an external information center upon request via a communication device. Specifying data of a blind area in which the map information is not acquirable in real time is previously stored in a memory. Based on the specifying data stored in the memory and a current position of the vehicle detected as by GPS, a processor acquires the map information of the blind area from the information center upon request when the vehicle approaches the blind area. The acquired map information is stored in the memory and is read out for use in navigation.
摘要:
An apparatus for guiding a vehicle autonomously to a target point by finding a current position based on radio waives from satellites and comparing the current position with the target point comprises a means for storing a reference position data of a reference point whose accurate position is known, a means for obtaining a position data of the vehicle when the vehicle is located on the reference point, a means for obtaining a correction data by calculating a difference between the reference position data and the position data, and a means for correcting the current position by using the correction data to obtain a real position of the vehicle.