Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Application No. | Application Title | Issue Date |
| 20120046943 | APPARATUS AND METHOD FOR IMPROVING COMMUNICATION QUALITY IN MOBILE TERMINAL An apparatus and a method for voice communication of a mobile terminal are provided. More particularly, an apparatus and a method for clearly receiving a counterpart user's voice signal in a mobile terminal positioned at a place where a noise occurs are provided. The ap... | 02/23/2012 |
| 20120046942 | TERMINAL TO PROVIDE USER INTERFACE AND METHOD A terminal and method to determine surrounding circumstances using received sound signals and to automatically control various user interfaces according to the surrounding circumstances. The terminal divides the received sound signals into voice and non-voice signals, a... | 02/23/2012 |
| 20120016669 | APPARATUS AND METHOD FOR VOICE PROCESSING AND TELEPHONE APPARATUS A voice processing apparatus includes a voice signal acquiring unit that acquires a voice signal converted to plural frequency bands from an input signal having a narrowed band; an expanding unit that generates based on a narrowband component of the voice signal acquire... | 01/19/2012 |
| 20120010879 | SPEECH ENCODING/DECODING DEVICE A linear prediction coefficient of a signal represented in a frequency domain is obtained by performing linear prediction analysis in a frequency direction by using a covariance method or an autocorrelation method. After the filter strength of the obtained linear predic... | 01/12/2012 |
| 20120010880 | APPARATUS, METHOD AND COMPUTER PROGRAM FOR GENERATING A REPRESENTATION OF A BANDWIDTH-EXTENDED SIGNAL ON THE BASIS OF AN INPUT SIGNAL REPRESENTATION USING A COMBINATION OF A HARMONIC BANDWIDTH-EXTENSION AND A NON-HARMONIC BANDWIDTH-EXTENSION An apparatus for generating a representation of a bandwidth-extended signal on the basis of an input signal representation includes a phase vocoder configured to obtain values of a spectral domain representation of a first patch of the bandwidth-extended signal on the b... | 01/12/2012 |
| 20120004906 | METHOD FOR SEPARATING SIGNAL PATHS AND USE FOR IMPROVING SPEECH USING ELECTRIC LARYNX In order to improve the speech quality of an electric larynx (EL) speaker, the speech signal of which is digitized by suitable means, the following steps are carried out: a) dividing a single-channel speech signal into a series of frequency channels by transferring it f... | 01/05/2012 |
| 20110320194 | Decoder with embedded silence and background noise compression There is provided a method for use by a speech encoder to encode an input speech signal. The method comprises receiving the input speech signal; determining whether the input speech signal includes an active speech signal or an inactive speech signal; low-pass filtering... | 12/29/2011 |
| 20110313758 | Method and Arrangement for Processing of Speech Quality Estimate Method and arrangement for processing of a speech quality estimate, which involve adaption of a speech quality estimate based on information related to the bandwidth of a reference signal used when determining said speech quality estimate, such that the adapted speech q... | 12/22/2011 |
| 20110307248 | ENCODER, DECODER, AND METHOD THEREFOR Provided is an encoder which can effectively encode/decode spectrum data of a broad frequency signal in a high frequency range, can dramatically reduce the number of the arithmetic operations to be performed, and can improve the quality of the decoded signal. The encode... | 12/15/2011 |
| 20110295598 | SYSTEMS, METHODS, APPARATUS, AND COMPUTER PROGRAM PRODUCTS FOR WIDEBAND SPEECH CODING Methods of audio coding are described in which an excitation signal for a first frequency band of the audio signal is used to calculate an excitation signal for a second frequency band of the audio signal that is separated from the first frequency band.... | 12/01/2011 |
| 20110257965 | INTEROPERABLE VOCODER Encoding a sequence of digital speech samples into a bit stream includes dividing the digital speech samples into one or more frames and computing a set of model parameters for the frames. The set of model parameters includes at least a first parameter conveying pitch i... | 10/20/2011 |
| 20110224976 | SPEECH INTELLIGIBILITY PREDICTOR AND APPLICATIONS THEREOF The application relates to a method of providing a speech intelligibility predictor value for estimating an average listener's ability to understand of a target speech signal when said target speech signal is subject to a processing algorithm and/or is received in a noi... | 09/15/2011 |
| 20110208515 | SYSTEMS AND METHODS FOR GATHERING RESEARCH DATA Methods and systems are provided for gathering research data that includes information pertaining to audio signals received on a portable device, such as a cell phone. Frequency domain data is received or produced, a signature is extracted from the frequency domain data... | 08/25/2011 |
| 20110208516 | INFORMATION PROCESSING APPARATUS AND OPERATION METHOD THEREOF An information processing apparatus includes an acquisition unit configured to acquire a first sound recorded from a first recording apparatus and a second sound recorded from a second recording apparatus that is different from the first recording apparatus, a determina... | 08/25/2011 |
| 20110200198 | Low Bitrate Audio Encoding/Decoding Scheme with Common Preprocessing An audio encoder has a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an LPC-domain encoding branch and a switch for switching between these branches at in... | 08/18/2011 |
| 20110191101 | Apparatus and Method for Processing an Audio Signal for Speech Enhancement Using a Feature Extraction An apparatus for processing an audio signal to obtain control information for a speech enhancement filter has a feature extractor for extracting at least one feature per frequency band of a plurality of frequency bands of a short-time spectral representation of a plural... | 08/04/2011 |
| 20110191102 | SYSTEMS AND METHODS FOR SPEECH EXTRACTION In some embodiments, a processor-readable medium stores code representing instructions to cause a processor to receive an input signal having a first component and a second component. An estimate of the first component of the input signal is calculated based on an estim... | 08/04/2011 |
| 20110184731 | SIGNAL PROCESSING METHOD AND APPARATUS FOR AMPLIFYING SPEECH SIGNALS A signal processing method is provided. The signal processing method includes extracting a first signal having a first frequency band from a sum signal of a left signal and a right signal, generating a second signal having a second frequency band by using the first sign... | 07/28/2011 |
| 20110178795 | TIME WARP ACTIVATION SIGNAL PROVIDER, AUDIO SIGNAL ENCODER, METHOD FOR PROVIDING A TIME WARP ACTIVATION SIGNAL, METHOD FOR ENCODING AN AUDIO SIGNAL AND COMPUTER PROGRAMS An audio encoder has a window function controller, a windower, a time warper with a final quality check functionality, a time/frequency converter, a TNS stage or a quantizer encoder, the window function controller, the time warper, the TNS stage or an additional noise f... | 07/21/2011 |
| 20110178796 | Signal Classifying Method and Apparatus A signal classifying method and apparatus are disclosed. The signal classifying method includes: obtaining a spectrum fluctuation parameter of a current signal frame determined as a foreground frame, and buffering the spectrum fluctuation parameter; obtaining a spectrum... | 07/21/2011 |
| 20110172993 | Single channel EVRCx, ISLP and G.711 transcoding in packet networks An apparatus in one example has: a receiver configured to receive an input signal in a first encoding format, the input signal having an input payload; and a transcoder operatively coupled to the receiver, the transcoder structured to transcode in a single channel the f... | 07/14/2011 |
| 20110153316 | Acoustic Perceptual Analysis and Synthesis System The present invention relates to the field of speech recognition and synthesis, and more specifically to a novel non-phonemically based system for recognizing and synthesizing speech.... | 06/23/2011 |
| 20110137644 | Decoding speech signals A method, terminal and program for processing a speech signal, in which the speech signal is received over a network from a transmitting device, wherein the frequency components in the received speech signal are limited to a predetermined frequency range and the receive... | 06/09/2011 |
| 20110131039 | COMPLEX ACOUSTIC RESONANCE SPEECH ANALYSIS SYSTEM A method and apparatus are provided for determining an instantaneous frequency and an instantaneous bandwidth of a speech resonance of a speech signal. The method includes receiving a speech signal having a real component; filtering the speech signal so as to generate a... | 06/02/2011 |
| 20110125489 | METHOD AND APPARATUS TO REMOVE NOISE FROM AN INPUT SIGNAL IN A NOISY ENVIRONMENT, AND METHOD AND APPARATUS TO ENHANCE AN AUDIO SIGNAL IN A NOISY ENVIRONMENT A method of removing noise includes detecting a frequency spectrum of a noise signal around the transmitting terminal, when an input signal which is a mixture of a voice signal and the noise signal is received, detecting a frequency spectrum of the input signal and an e... | 05/26/2011 |
| 20110125490 | NOISE SUPPRESSOR AND VOICE DECODER A processed component calculating unit 14 obtains a transformed noise suppressed spectrum 18a based on the ratio between a noise suppressed spectrum 18 and an estimated noise spectrum 17, and a phase disturbing unit 15 performs ... | 05/26/2011 |
| 20110119055 | APPARATUS FOR ENCODING AND DECODING OF INTEGRATED SPEECH AND AUDIO Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the i... | 05/19/2011 |
| 20110112829 | APPARATUS AND METHOD FOR ENCODING AND DECODING OF INTEGRATED SPEECH AND AUDIO Provided are an apparatus and a method for integrally encoding and decoding a speech signal and a audio signal. The encoding apparatus may include: an input signal analyzer to analyze a characteristic of an input signal; a first conversion encoder to convert the input s... | 05/12/2011 |
| 20110106529 | APPARATUS AND METHOD FOR CONVERTING AN AUDIOSIGNAL INTO A PARAMETERIZED REPRESENTATION, APPARATUS AND METHOD FOR MODIFYING A PARAMETERIZED REPRESENTATION, APPARATUS AND METHOD FOR SYNTHESIZING A PARAMETERIZED REPRESENTATION OF AN AUDIO SIGNAL Apparatus for converting an audio signal into a parameterized representation, has a signal analyzer for analyzing a portion of the audio signal to obtain an analysis result; a band pass estimator for estimating information of a plurality of band pass filters based on th... | 05/05/2011 |
| 20110093261 | SYSTEM AND METHOD FOR VOICE RECOGNITION Systems and methods are operable to associate each of a plurality of stored audio patterns with at least one of a plurality of digital tokens, identify a user based on user identification input, access a plurality of stored audio patterns associated with a user based on... | 04/21/2011 |
| 20110082691 | BROADCASTING SYSTEM INTERWORKING WITH ELECTRONIC DEVICES Provided is a technology of controlling an electronic device using a broadcasting system. A control signal may be modulated to an audible frequency band and thereby be transmitted from a transmission apparatus to a reception apparatus using the broadcasting system. The ... | 04/07/2011 |
| 20110040556 | METHOD AND APPARATUS FOR ENCODING AND DECODING RESIDUAL SIGNAL A method and apparatus for encoding and decoding a residual signal are provided. The encoding method includes generating a residual signal indicating a difference between a multi-channel audio signal, and an audio signal downmixed from the multi-channel audio signal and... | 02/17/2011 |
| 20100332221 | ENCODING DEVICE, DECODING DEVICE, AND METHOD THEREOF It is possible to improve quality of a decoding signal in a band spread for estimating a high band from a low band of a decoding signal. A first layer encoding unit (202) encodes a lower band portion below a predetermined frequency of an input signal so as to gen... | 12/30/2010 |
| 20100303284 | Signal Hiding Employing Feature Modification Aspects of the present disclosure relate generally to methods and systems for signal hiding using feature modulation. One claim recites a method comprising: obtaining data representing a media signal; analyzing the data to determine features of the media signal; using a... | 12/02/2010 |
| 20100296444 | System and Method for Providing Voice Communications Over a Multi-Level Secure Network According to one embodiment, a communication network includes an analog voice bridge coupled to two secure network domains that each have a differing security level. The analog voice bridge includes two codecs that are coupled together through an analog voice line that ... | 11/25/2010 |
| 20100262421 | ENCODING DEVICE, DECODING DEVICE, AND METHOD THEREOF Provided is an encoding device which improves the sound quality of a stereo signal while maintaining a low bit rate. The encoding device includes: an LP inverse filter (121) which LP-inverse-filterS a left signal L(n) by using an inverse quantization linear predi... | 10/14/2010 |
| 20100262422 | Device and method for improving communication through dichotic input of a speech signal The device and method of the present invention improves electronic communication which have behavioral consequences, including for example, flight communication, two-way closed circuit communication such as for fire, police, miners, scuba divers and other heath and safe... | 10/14/2010 |
| 20100246803 | Bandwidth extension apparatus for automatically adjusting the bandwidth of inputted signal and a method therefor A bandwidth extension apparatus can generate from an inputted speech signal a bandwidth-extended signal whose bandwidth is automatically adjusted according to the surrounding hearing situation by means of a parameter. The apparatus has a surrounding characteristic predi... | 09/30/2010 |
| 20100223052 | REGENERATION OF WIDEBAND SPEECH A method of regenerating wideband speech from narrowband speech, the method comprising: receiving samples of a narrowband speech signal in a first range of frequencies; modulating received samples of the narrowband speech signal with a modulation signal having a modulat... | 09/02/2010 |
| 20100223061 | Method and Apparatus for Audio Coding In accordance with an example embodiment of the present invention, there is provided an apparatus for encoding an audio signal in two or more encoding stages, the audio signal comprising a set of frequency components. The apparatus comprises a frequency component select... | 09/02/2010 |
