| Patent application number | Description | Published |
|---|
| 20080255832 | Scalable Encoding Apparatus and Scalable Encoding Method - A scalable encoding apparatus wherein stereo audio signals can be scalable encoded by use of a CELP encoding to improve the encoding efficiency. In the apparatus, an adder and a multiplier obtain an average of first and second channel signals as a monophonic signal. A CELP encoding part performs a CELP encoding of the monophonic signal. A first channel difference information encoding part performs an encoding of the first channel signal in conformance with the CELP encoding and obtains a difference between a resulting encoded parameter and an encoded parameter outputted from the CELP encoding part. The first channel difference information encoding part then encodes this difference and outputs the resulting encoded parameter. | 10-16-2008 |
| 20080255833 | Scalable Encoding Device, Scalable Decoding Device, and Method Thereof - A scalable encoding device for realizing scalable encoding by CELP encoding of a stereo sound signal and improving the encoding efficiency. In this device, an adder and a multiplier obtain an average of a first channel signal CH | 10-16-2008 |
| 20090041255 | SCALABLE ENCODING DEVICE AND SCALABLE ENCODING METHOD - There is disclosed a scalable encoding device capable of preventing sound quality deterioration of a decoded signal, reducing the encoding rate, and reducing the circuit size. The scalable encoding device includes: a first layer encoder ( | 02-12-2009 |
| 20090043572 | PULSE ALLOCATING METHOD IN VOICE CODING - A pulse allocating method capable of coding stereophonic voice signals efficiently. In the fixed code note retrievals (ST | 02-12-2009 |
| 20090055169 | VOICE ENCODING DEVICE, AND VOICE ENCODING METHOD - A voice encoding device capable of generating a modulated proper monaural signal enriched in clearness and understandability, when the monaural signal is to be generated from a stereophonic signal. In this device, a weighting unit ( | 02-26-2009 |
| 20090119111 | STEREO ENCODING DEVICE, AND STEREO SIGNAL PREDICTING METHOD - A prediction performance between the individual channels of a stereo signal is improved to improve the sound quality of a decoded signal. An LPF ( | 05-07-2009 |
| 20090150162 | STEREO ENCODING APPARATUS, STEREO DECODING APPARATUS, AND THEIR METHODS - A stereo audio encoding apparatus capable of preventing degradation of the sound quality of a decoded signal, while reducing the encoding bit rate. In the apparatus, a spatial information analyzing part ( | 06-11-2009 |
| 20090262945 | STEREO ENCODING DEVICE, STEREO DECODING DEVICE, AND STEREO ENCODING METHOD - There is disclosed a stereo encoding device capable of accurately encoding a stereo signal at a low bit rate and suppressing delay in audio communication. The device performs monaural encoding in its first layer ( | 10-22-2009 |
| 20090271184 | SCALABLE ENCODING DEVICE, AND SCALABLE ENCODING METHOD - Disclosed is a scalable encoding device capable of reducing an encoding rate thereby to reduce a circuit scale while preventing sound quality deterioration of a decoded signal. In this device, an extension layer is coarsely divided into a system for processing a first channel and a system for processing a second channel. A sound source prediction unit ( | 10-29-2009 |
| 20090276210 | STEREO AUDIO ENCODING APPARATUS, STEREO AUDIO DECODING APPARATUS, AND METHOD THEREOF - Disclosed is a stereo speech decoding device and others capable of reducing a stereo speech encoding bit rate and suppressing degradation of speech quality. In this device, a section | 11-05-2009 |
| 20100153099 | SPEECH ENCODING APPARATUS AND SPEECH ENCODING METHOD - A speech coder and so forth for preventing deterioration of the quality of a reproduced speech signal while reducing the coding rate. In a speech signal modifying section ( | 06-17-2010 |
