| Patent application number | Description | Published |
|---|
| 20080219471 | SIGNAL PROCESSING METHOD AND APPARATUS, AND RECORDING MEDIUM IN WHICH A SIGNAL PROCESSING PROGRAM IS RECORDED - A signal processing method for converting a signal received via a transmission path or read from a storage medium into a first audible signal, and suppressing a noise other than a desired signal contained in the first audible signal based on predetermined audio quality adjustment information, comprising steps of: in suppressing a noise other than a desired signal contained in the first audible signal to generate an enhanced signal, receiving audio quality adjustment information for adjusting audio quality; and adjusting audio quality of the enhanced signal using the audio quality adjustment information | 09-11-2008 |
| 20080219473 | SIGNAL PROCESSING METHOD, APPARATUS AND PROGRAM - The present invention is characterized in performing noise suppression immediately before or after mixing signals received from a plurality of terminals. Thus, in multi-point connection for a plurality of terminal devices, a mixed signal can be supplied with high sound quality to a receiver terminal, regardless of the presence and performance of the noise suppression function in a transmitter terminal. | 09-11-2008 |
| 20090043423 | Information processing system, method of processing information, and program for processing information - An information processing system, method, program and robot is provided. The system includes analysis means for analyzing a message and determining the most effective direction for transmitting the message. The analysis means also analyzes received messages and determines the most effective direction for receiving the message. Motion control means turn toward the most effective direction for transmitting a message or receiving a message. The system includes information reproducing means for reproducing the message and a sensor for receiving a message. | 02-12-2009 |
| 20090073040 | ADAPTIVE ARRAY CONTROL DEVICE, METHOD AND PROGRAM, AND ADAPTIVE ARRAY PROCESSING DEVICE, METHOD AND PROGRAM - [Object] By enabling accurate coefficient update, a high-quality array processing output which is less influenced by frequency characteristics and incoming directions of input signals control can be acquired, irrespective of the frequency characteristics and incoming direction of the input signals. [Achieving Means] Identification information of a target signal and interference by amplitude is corrected according to identification information of the target signal and the interference by phase, and with use of the correction result, identification of the target signal and the interference is performed. More specifically, an identification information generation section according to phase, a correction signal generation section, and a correction section are provided. | 03-19-2009 |
| 20090086578 | ADAPTIVE ARRAY CONTROL DEVICE, METHOD AND PROGRAM, AND ADAPTIVE ARRAY PROCESSING DEVICE, METHOD AND PROGRAM USING THE SAME - [Object] To provide an adaptive array control method, device, and program, and an adaptive array processing method, device, and program, capable of performing accurate coefficient update control independent of frequency characteristics and incoming directions of signals. | 04-02-2009 |
| 20090121934 | ADAPTIVE ARRAY CONTROL DEVICE, METHOD AND PROGRAM, AND ADAPTIVE ARRAY PROCESSING DEVICE, METHOD AND PROGRAM - [Object] To provide an adaptive array controlling method, a device, and a program, and an adaptive array processing method, a device, and a program, which are less influenced by frequency characteristics of input signals and directions of a target signal and interference, and capable of performing accurate coefficient update. | 05-14-2009 |
| 20090196434 | METHOD, APPARATUS, AND COMPUTER PROGRAM FOR SUPPRESSING NOISE - A method, an apparatus, and a computer program, which can suppress a low frequency range component with a small amount of calculation, and can achieve a noise suppression of high quality, are provided. The noise superposed in a desired signal of an input signal is suppressed by converting the input signal to a frequency domain signal; correcting an amplitude of the frequency domain signal to obtain an amplitude corrected signal; obtaining an estimated noise by using the amplitude corrected signal; determining a suppression coefficient by using the estimated noise and the amplitude corrected signal; and weighting the amplitude corrected signal with the suppression coefficient. | 08-06-2009 |
| 20090207955 | Adaptive Digital Filter, FM Receiver, Signal Processing Method, and Program - The adaptive digital filter of the present invention includes: a filter unit that includes a plurality of multipliers ( | 08-20-2009 |
| 20090296958 | NOISE SUPPRESSION METHOD, DEVICE, AND PROGRAM - It is possible to provide a noise suppression method, device, and program capable of realizing a sound image positioning of an output side corresponding to an input side with a small calculation amount. The device includes a common suppression coefficient calculation unit for receiving conversion outputs from a plurality of channels and calculating a suppression coefficient common to the channels. | 12-03-2009 |
| 20100010808 | Method, Apparatus and Computer Program for Suppressing Noise - To provide a noise suppressing method and apparatus capable of achieving high-quality noise suppression using a lower amount of operations. Noise contained in an input signal is suppressed by transforming the input signal into frequency-domain signals; integrating bands of the frequency-domain signals to determine integrated frequency-domain signals; determining estimated noise based on the integrated frequency-domain signals; determining spectral gains based on the estimated noise and said integrated frequency-domain signals; and weighting said frequency-domain signals by the spectral gains. | 01-14-2010 |
| 20100171662 | ADAPTIVE ARRAY CONTROL DEVICE, METHOD AND PROGRAM, AND ADAPTIVE ARRAY PROCESSING DEVICE, METHOD AND PROGRAM USING THE SAME - [Object] To provide an adaptive array control device, method, and program adapted to be able to output an enhanced target signal by precisely carrying out a coefficient update control of a plurality of signals input from a group of sensors arranged in an array, the coefficient update control being less influenced by the frequency characteristics of the signals and directions of a target signal and interference. | 07-08-2010 |
| 20100211382 | Dereverberation Method, Apparatus, and Program for Dereverberation - A dereverberation device includes a reverberation estimation unit for estimating a later reflection component by using information on an impulse response from a signal source to an observation point, a noise estimation unit, and a mixing unit. As a result, it is possible to obtain a high-quality dereverberated signal with a small calculation amount even in a noisy environment. | 08-19-2010 |
| 20100217586 | SIGNAL PROCESSING SYSTEM, APPARATUS AND METHOD USED IN THE SYSTEM, AND PROGRAM THEREOF - Provided is a signal separation system including a rendering unit which receives a first and a second input signal and positions the first input signal according to rendering information. | 08-26-2010 |
| 20100217587 | SIGNAL PROCESSING METHOD AND DEVICE - A signal processor includes: a first adaptive filter that takes a first signal as input and generates a first pseudo signal; a first subtractor that subtracts the first pseudo signal from a second signal to supply a first differential signal as output; a second adaptive filter that takes the first signal as input to generate a second pseudo signal; a second subtractor that subtracts the second pseudo signal from the second signal to supply a second differential signal as output; a first step size control circuit that generates a first step size used in updating the first adaptive filter in accordance with the relation between the second pseudo signal and the second differential signal; and a second step size control circuit that generates a second step size used in updating the second adaptive filter in accordance with the relation between the first signal and the second signal. | 08-26-2010 |
| 20100223311 | PARTICULAR SIGNAL CANCEL METHOD, PARTICULAR SIGNAL CANCEL DEVICE, ADAPTIVE FILTER COEFFICIENT UPDATE METHOD, ADAPTIVE FILTER COEFFICIENT UPDATE DEVICE, AND COMPUTER PROGRAM - By using the adaptive filter, the reference input signal is processed so as to identify a pseudo-signal of a particular signal to be deleted. The pseudo-signal is subtracted from the mixture containing a target signal inputted from a microphone, the particular signal to be deleted, and a noise so as to obtain an error signal. A stationary noise is estimated to obtain a stationary noise estimated value. A non-stationary noise is estimated to obtain a non-stationary noise estimated value. The stationary noise estimated value is mixed with the non-stationary estimated value to obtain a mixed noise estimated value. An update amount is calculated according to a correlation value between the error signal and the reference input signal, and the mixed noise estimated value. According to the update amount, a coefficient of the adaptive filter is updated. | 09-02-2010 |
| 20100283536 | SYSTEM, APPARATUS, METHOD AND PROGRAM FOR SIGNAL ANALYSIS CONTROL, SIGNAL ANALYSIS AND SIGNAL CONTROL - A signal analysis control system is provided with a signal analyzing section for analyzing signals inputted to a transmission section and generating analysis information, and a signal control section for controlling signals inputted to a receiving section by using the analysis information. | 11-11-2010 |
| 20110002225 | SIGNAL ANALYSIS/CONTROL SYSTEM AND METHOD, SIGNAL CONTROL APPARATUS AND METHOD, AND PROGRAM - A signal analysis/control system includes: a signal analysis unit which analyzes an input signal of a transmission unit and generates analysis information; and a signal control unit which controls the input signal of a reception unit by using the analysis information. Thus, the signal analysis is performed in the transmission unit. This reduces the calculation amount concerning the signal analysis in the reception unit. Furthermore, the reception unit can control each of the constituent elements of the input signal according to the signal analysis information obtained in the transmission unit. | 01-06-2011 |
| 20110019761 | SYSTEM, APPARATUS, METHOD, AND PROGRAM FOR SIGNAL ANALYSIS CONTROL AND SIGNAL CONTROL - Disclosed is a signal control method that is characterized by receiving a first signal, a second signal comprising multiple components, component information indicating the relationship between the components, and analysis control information comprising information indicating the relationship between the components and the second signal. The signal control method is further characterized by controlling the first signal or the second signal on the basis of the components and the analysis control information. | 01-27-2011 |
