Quotables
"There is no likelihood man can ever tap the power of the atom."
Robert Millikan, Nobel Prize winner in physics
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Application No. | Application Title | Issue Date |
| 20120022859 | AUTOMATIC MARKING METHOD FOR KARAOKE VOCAL ACCOMPANIMENT An automatic marking method for Karaoke vocal accompaniment is provided. In the method, pitch, beat position and volume of a singer are compared with the original pitch, beat position and volume of the theme of a song to generate a score of pitch, a score of beat and a ... | 01/26/2012 |
| 20110282658 | Method and Apparatus for Audio Source Separation The present invention relates to co-channel audio source separation. In one embodiment a first frequency-related representation of plural regions of the acoustic signal is prepared over time, and a two-dimensional transform of plural two-dimensional localized regions of... | 11/17/2011 |
| 20110264447 | SYSTEMS, METHODS, AND APPARATUS FOR SPEECH FEATURE DETECTION Implementations and applications are disclosed for detection of a transition in a voice activity state of an audio signal, based on a change in energy that is consistent in time across a range of frequencies of the signal.... | 10/27/2011 |
| 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 |
| 20110218801 | METHOD FOR ERROR CONCEALMENT IN THE TRANSMISSION OF SPEECH DATA WITH ERRORS The invention relates to a method for outputting a speech signal. Speech signal frames are received and are used in a predetermined sequence in order to produce a speech signal to be output. If one speech signal frame to be received is not received, then a substitute sp... | 09/08/2011 |
| 20110153317 | GENDER DETECTION IN MOBILE PHONES An apparatus for wireless communications includes a processing system. The processing system is configured to receive an input sound stream of a user, split the input sound stream into a plurality of frames, classify each of the frames as one selected from the group con... | 06/23/2011 |
| 20110153318 | Method and system for speech bandwidth extension There is provided a method or a device for extending a bandwidth of a first band speech signal to generate a second band speech signal wider than the first band speech signal and including the first band speech signal. The method comprises receiving a segment of the fir... | 06/23/2011 |
| 20110099006 | AUTOMATED AND ENHANCED NOTE TAKING FOR ONLINE COLLABORATIVE COMPUTING SESSIONS In one embodiment, during participation in an online collaborative computing session, a computer process associated with the session may monitor an audio stream of the session for a predefined action-inducing phrase. In response to the phrase, a subsequent segment of th... | 04/28/2011 |
| 20110035213 | Method and Device for Sound Activity Detection and Sound Signal Classification A device and method for estimating a tonality of a sound signal comprise: calculating a current residual spectrum of the sound signal; detecting peaks in the current residual spectrum; calculating a correlation map between the current residual spectrum and a previous re... | 02/10/2011 |
| 20110029304 | HYBRID INSTANTANEOUS/DIFFERENTIAL PITCH PERIOD CODING A hybrid instantaneous/differential encoding technique is described herein that may be used to reduce the bit rate required to encode a pitch period associated with a segment of a speech signal in a manner that will result in relatively little or no degradation of a dec... | 02/03/2011 |
| 20100185440 | TRANSCODING METHOD, TRANSCODING DEVICE AND COMMUNICATION APPARATUS The embodiments of a transcoding method, a transcoding device, and a communication apparatus are provided. The embodiment of a method includes: receiving a bit stream input from a sending end; determining an attribute of discontinuous transmission (DTX) used by a receiv... | 07/22/2010 |
| 20100145688 | Method and apparatus for encoding/decoding speech signal using coding mode An apparatus and a method to encode and decode a speech signal using an encoding mode are provided. An encoding apparatus may select an encoding mode of a frame included in an input speech signal, and encode a frame having an unvoiced mode for an unvoiced speech as the ... | 06/10/2010 |
| 20100125452 | PITCH RANGE REFINEMENT A method of refining a pitch period estimation of a signal, the method comprising: for each of a plurality of portions of the signal, scanning over a predefined range of time offsets to find an estimate of the pitch period of the portion within the predefined range of t... | 05/20/2010 |
| 20100098064 | METHOD AND APPARATUS FOR DYNAMICALLY PROVIDING COMFORT NOISE A method and apparatus for dynamically enabling the activation and deactivation of comfort noise over a VoIP media path or channel are disclosed. The present method detects all sound levels in the media path and only activates the comfort noise in the absence of sound a... | 04/22/2010 |
| 20100094620 | Voice Transcoder First encoded voice bits are transcoded into second encoded voice bits by dividing the first encoded voice bits into one or more received frames, with each received frame containing multiple ones of the first encoded voice bits. First parameter bits for at least one of ... | 04/15/2010 |
| 20100088089 | Speech Synthesizer Synthesizing a set of digital speech samples corresponding to a selected voicing state includes dividing speech model parameters into frames, with a frame of speech model parameters including pitch information, voicing information determining the voicing state in one or... | 04/08/2010 |
| 20100017202 | Method and apparatus for determining coding mode Provided is a method and apparatus for determining a signal coding mode. The signal coding mode may be determined or changed according to whether a current frame corresponds to a silence period and by using a history of speech or music presence possibilities.... | 01/21/2010 |
| 20100017203 | AUTOMATIC LEVEL CONTROL OF SPEECH SIGNALS A method and apparatus for processing audio signals. The method includes receiving an audio signal as a sequence of digital samples, said audio signal containing a speech portion and a non-speech portion, dividing said sequence of digital samples into a sequence of sub-... | 01/21/2010 |
| 20090182556 | PITCH ESTIMATION AND MARKING OF A SIGNAL REPRESENTING SPEECH Methods, systems, and machine-readable media are disclosed for processing a signal representing speech. According to one embodiment, a method of processing a signal representing speech can comprise receiving a frame of the signal representing speech, classifying the fra... | 07/16/2009 |
| 20090125301 | VOICING DETECTION MODULES IN A SYSTEM FOR AUTOMATIC TRANSCRIPTION OF SUNG OR HUMMED MELODIES The technology disclosed relates to audio signal processing. It includes a series of modules that individually are useful to solve audio signal processing problems. Among the problems addressed are buzz removal, selecting a pitch candidate among pitch candidates based o... | 05/14/2009 |
| 20080167863 | Apparatus and method of improving intelligibility of voice signal The present invention relates to an apparatus and method of improving intelligibility of a voice signal. A method of improving intelligibility of a voice signal according to an embodiment of the present invention includes analyzing a background noise signal on a call re... | 07/10/2008 |
| 20080109217 | Method, Apparatus and Computer Program Product for Controlling Voicing in Processed Speech An apparatus for providing control of voicing in processed speech includes a spectra approximation element and a comparing element. The spectra approximation element may be configured to compute a voiced contribution and an unvoiced contribution for each of a reference ... | 05/08/2008 |
| 20080109218 | SYSTEM AND METHOD FOR MODELING SPEECH SPECTRA A system and method for modeling speech in such a way that both voiced and unvoiced contributions can co-exist at certain frequencies. In various embodiments, three spectral bands (or bands of up to three different types) are used. In one embodiment, the lowest band or ... | 05/08/2008 |
| 20080077399 | Low-frequency-band voice reconstructing device, voice signal processor and recording apparatus There is provided a low-frequency-band voice reconstructing device. A voice signal from which a signal in a low-frequency band is removed is inputted to the device and the device reconstructs the signal in the low frequency band based on the input voice signal. The devi... | 03/27/2008 |
| 20070288233 | Apparatus and method for detecting degree of voicing of speech signal In order to detect a degree of voicing of a speech signal, an input speech signal is converted to a speech signal in the frequency domain, a pitch value is calculated from the speech signal, a plurality of harmonic peaks existing in the speech signal are detected, and a... | 12/13/2007 |
| 20070233470 | Multichannel Signal Coding Equipment and Multichannel Signal Decoding Equipment Multichannel signal coding equipment is provided for presenting a high quality sound at a low bit rate. In the multichannel signal coding equipment (2), a down mixpart (10) generates monaural reference channel signals for N number of channel signals. A cod... | 10/04/2007 |
| 20070185709 | Voicing estimation method and apparatus for speech recognition by using local spectral information A method and apparatus of estimating a voicing for speech recognition by using local spectral information. The voicing estimation method for speech recognition includes performing a Fourier transform on input voice signals after performing pre-processing on the input vo... | 08/09/2007 |
| 20070174050 | High frequency compression integration A speech enhancement system that improves the intelligibility and the perceived quality of processed speech includes a frequency transformer and a spectral compressor. The frequency transformer converts speech signals from the time domain to the frequency domain. The sp... | 07/26/2007 |
| 20070136053 | Music detector for echo cancellation and noise reduction An audio signal is divided among exponentially related subband filters. The spectral flatness measure in each subband signal is determined and the measures are weighted and combined. The sum is compared with a threshold to determine the presence of music or noise. If mu... | 06/14/2007 |
| 20070112562 | System and method for winding audio content using a voice activity detection algorithm A system and method for locating a preferable playback start location after a winding or rewinding action in an audio playing device. In response to an adjustment of the playing location for audio content to a desired playing position, the system determines whether at l... | 05/17/2007 |
| 20070076891 | Apparatus and method of canceling vocal component in an audio signal An apparatus and method of canceling a vocal component includes a first vocal canceling unit to delay each of the left and right channel input signals for a predetermined time and to feed-forward cross mix the delayed left and right channel signals with the left and rig... | 04/05/2007 |
| 20070027681 | Method and apparatus for extracting voiced/unvoiced classification information using harmonic component of voice signal An apparatus and method for extracting precise voiced/unvoiced classification information from a voice signal is disclosed. The apparatus extracts voiced/unvoiced classification information by analyzing a ratio of a harmonic component to a non-harmonic (or residual) com... | 02/01/2007 |
| 20070010997 | Sound processing apparatus and method Disclosed is an apparatus and method for processing signals such as sound signals. The sound processing apparatus includes a sound signal input unit for receiving sound signals, a harmonic noise separator for separating a harmonic region and a noise region from the rece... | 01/11/2007 |
| 20060277037 | Method for generating output data A method for generating output data identifying a class of a predetermined plurality of classes. The method comprises receiving data representing an acoustic signal; determining an amplitude of at least a first predetermined frequency component of said acoustic signal; ... | 12/07/2006 |
| 20060247922 | System for improving speech quality and intelligibility A system and method are provided for improving the quality and intelligibility of speech signals. The system and method apply frequency compression to the higher frequency components of speech signals while leaving lower frequency components substantially unchanged. Thi... | 11/02/2006 |
| 20060241938 | System for improving speech intelligibility through high frequency compression A speech enhancement system that improves the intelligibility and the perceived quality of processed speech includes a frequency transformer and a spectral compressor. The frequency transformer converts speech signals from the time domain to the frequency domain. The sp... | 10/26/2006 |
| 20060195316 | Voice detecting apparatus, automatic image pickup apparatus, and voice detecting method A voice detecting apparatus includes a first determining unit to determine that human voice has been input if a signal component having a harmonic structure is detected from an input voice signal; a second determining unit to determine that human voice has been input if... | 08/31/2006 |
| 20060080089 | Circuit arrangement and method for audio signals containing speech An audio processing system includes a speech detector that receives and processes an audio input signal to determine if the input signal includes components indicative of speech, and provides a control signal indicative of whether or not the audio input signal includes ... | 04/13/2006 |
| 20060074640 | Method of enhancing quality of speech and apparatus thereof The present invention relates to enhancing a quality of speech wherein speech quality degradation is reduced by removing noise from an unvoiced speech. The present invention comprises dividing an input speech into a voiced speech and an unvoiced speech, performing adapt... | 04/06/2006 |
| 20050288922 | Method and system for speech recognition A description is given of a speech recognition system in which a speech signal of a user is analyzed so as to recognize speech information contained in the speech signal. In a test procedure the recognition result with the most probable match is converted into a speech ... | 12/29/2005 |
