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    • 2. 发明授权
    • Noise reduction apparatus and method, and program
    • 降噪装置及方法,程序
    • US09456267B2
    • 2016-09-27
    • US13291259
    • 2011-11-08
    • Kyosuke MatsumotoShiro Suzuki
    • Kyosuke MatsumotoShiro Suzuki
    • G10K11/16A61F11/06H03B29/00H04R1/10H04R3/00G10K11/178
    • H04R1/1083G10K11/178G10K2210/1081G10K2210/3027H04R3/00H04R2460/01
    • A noise reduction apparatus includes a microphone that picks up a noise from surroundings of a casing, a cancellation signal generating section that generates a cancellation signal for reducing the noise from surroundings, by applying filtering to a signal picked up by the microphone, a predicted signal computing section that computes a predicted signal by predicting a noise from surroundings leaking into the casing, on a basis of the signal picked up by the microphone, an additional-signal control section that generates an additional signal for improving a listening feel of an actual residual noise, on a basis of a predicted residual noise obtained by adding the cancellation signal and the predicted signal, and an addition/output section that adds and outputs the additional signal and the cancellation signal.
    • 降噪装置包括从壳体周围拾取噪声的麦克风,消除信号产生部分,通过对由麦克风拾取的信号进行滤波,产生用于减少周围噪声的消除信号,预测信号 计算部分,其基于由麦克风拾取的信号,通过预测来自环境中的环境的噪声来计算预测信号;附加信号控制部分,其产生用于提高实际残差的听觉的附加信号 基于通过将抵消信号和预测信号相加获得的预测残差噪声,以及相加/输出附加信号和消除信号的加法/输出部分的噪声。
    • 3. 发明授权
    • Decoding apparatus and method, encoding apparatus and method, and program
    • 解码装置和方法,编码装置和方法以及程序
    • US08972249B2
    • 2015-03-03
    • US13634658
    • 2011-03-15
    • Shiro SuzukiYuuki MatsumuraJun MatsumotoYuuji MaedaYasuhiro Toguri
    • Shiro SuzukiYuuki MatsumuraJun MatsumotoYuuji MaedaYasuhiro Toguri
    • G10L19/02G10L21/038
    • G10L21/038G10L19/0212
    • The present invention relates to a decoding apparatus, a decoding method, an encoding apparatus, an encoding method, and programs that can shorten the delay time caused by the band extension at the time of decoding, and restrain increases in resources on the decoding side.A higher frequency component generating unit (73) generates a pseudo higher frequency spectrum by using a lower frequency spectrum (SP-L) and a higher frequency envelope (ENV-H). A phase randomizing unit (74) randomizes the phase of the pseudo higher frequency spectrum, based on a random flag (RND). An inverse MDCT unit (75) denormalizes the lower frequency spectrum (SP-L) by using a lower frequency envelope (ENV-L), and combines the pseudo higher frequency spectrum supplied from the phase randomizing unit (74) with the denormalized lower frequency spectrum (SP-L). The combination result is used as the spectrum of the entire band. The present invention can be applied to a decoding apparatus that performs band extension decoding, for example.
    • 解码装置,解码方法,编码装置,编码方法和程序技术领域本发明涉及可以缩短在解码时由频带扩展引起的延迟时间的解码装置,解码方法,编码装置,编码方法和程序,并且抑制解码侧的资源增加。 较高频率分量产生单元(73)通过使用较低频谱(SP-L)和较高频率包络(ENV-H)产生伪较高频谱。 相位随机化单元(74)基于随机标记(RND)使伪较高频谱的相位随机化。 逆MDCT单元(75)通过使用较低频率包络(ENV-L)对较低频谱(SP-L)进行非归一化,并且将从相位随机化单元(74)提供的伪高频频谱与非归一化较低频率 光谱(SP-L)。 组合结果用作整个频带的频谱。 本发明可以应用于例如进行频带扩展解码的解码装置。
    • 5. 发明申请
    • DATA TRANSFER DEVICE, DATA TRANSFER METHOD, AND DATA TRANSFER SYSTEM
    • 数据传输设备,数据传输方法和数据传输系统
    • US20120136967A1
    • 2012-05-31
    • US13389275
    • 2009-08-12
    • Takahiro ItoShiro SuzukiYoshiaki Ito
    • Takahiro ItoShiro SuzukiYoshiaki Ito
    • G06F15/16
    • H04L47/10H04W72/1221
    • A data acquirer acquires data from another device and stores the data in a buffer. A communicator transmits the data stored in the buffer to a data collection server. A line state acquirer acquires information on a line (line state data) and accumulates and stores the acquired line state data in a line state storer. A transmission data amount determiner determines a data amount transmittable by one connection to the data collection server based on the line state data stored in the line state storer. A transmission schedule generator generates a transmission schedule for data based on a total amount of data stored in the buffer and the data amount transmittable by one connection. The communicator transmits data according to the transmission schedule.
    • 数据获取器从另一设备获取数据并将数据存储在缓冲器中。 通信器将存储在缓冲器中的数据发送到数据收集服务器。 线路状态获取器获取线路上的信息(线路状态数据),并且将获取的线路状态数据累积并存储在线路状态存储器中。 发送数据量确定器基于存储在线路状态存储器中的线路状态数据来确定通过一次连接可发送到数据收集服务器的数据量。 传输调度生成器基于存储在缓冲器中的数据总量和通过一个连接传送的数据量来生成用于数据的传输调度。 通信器根据传输时间表发送数据。
    • 7. 发明授权
    • Playback apparatus and display method
    • 播放设备和显示方式
    • US08106284B2
    • 2012-01-31
    • US12498547
    • 2009-07-07
    • Shiro SuzukiChisato Kemmochi
    • Shiro SuzukiChisato Kemmochi
    • G10H1/00G10H1/18G10H7/00
    • G11B27/105G10H2220/005G10H2220/351G10H2240/081G10H2240/131G10L25/48G11B20/10037G11B20/10527G11B27/28G11B27/34G11B2020/10564
    • A playback apparatus is able to present song categories to the user that are suited to the current environmental noise. An audio pickup picks up noise data of the surrounding environment. A noise analyzer analyzes the noise data, and then extracts characteristic quantities expressing the characteristics of the noise data. A noise categorizer categorizes the noise data on the basis of the extracted noise data characteristic quantities. A content category database stores content data recorded onto a recording medium in association with categories based on characteristic quantities of the content data. A content category selector cross-references the noise data categorization result with the content category database, and on the basis thereof, selects a plurality of content data categories from among the categorized content data recorded onto the recording medium. A display unit then displays the selected plurality of content data categories.
    • 回放装置能够向适合于当前环境噪声的用户呈现歌曲类别。 音频拾取器拾取周围环境的噪声数据。 噪声分析仪分析噪声数据,然后提取表示噪声数据特征的特征量。 噪声分类器基于所提取的噪声数据特征量对噪声数据进行分类。 内容类别数据库根据内容数据的特征量,将记录在记录介质上的内容数据与各种类别相关联地存储。 内容类别选择器与内容类别数据库交叉参考噪声数据分类结果,并且基于此,从记录在记录介质上的分类内容数据中选择多个内容数据类别。 然后,显示单元显示所选择的多个内容数据类别。
    • 8. 发明授权
    • Signal encoding apparatus and method thereof, and signal decoding apparatus and method thereof
    • 信号编码装置及其方法以及信号解码装置及其方法
    • US08015001B2
    • 2011-09-06
    • US11571328
    • 2005-05-31
    • Shiro Suzuki
    • Shiro Suzuki
    • G10L19/14G10L21/00
    • G10L19/032
    • In a signal encoding apparatus (1) a frequency normalization unit (11) normalizes each spectrum of spectral signals by using respectively normalization factors and supplies a normalization factor index per spectrum to a quantization accuracy determining unit (13). The quantization accuracy determining unit (13) adds a weighting factor using auditory properties to the normalization factor index per spectrum of range conversion spectral signals which are subjected to normalization as well as range conversion, and the quantization accuracy is determined according to the result of addition. Then, a quantization unit (14) performs quantization with the quantization accuracy corresponding to a quantization accuracy index supplied from the quantization accuracy determining unit (13), while the encoding/code string generating unit (15) encodes the weighting factor supplied from the quantization accuracy determining unit (13), together with the normalization factor index and the quantized spectral signal.
    • 在信号编码装置(1)中,频率归一化单元(11)通过使用分别的归一化因子来对频谱信号的每个频谱进行归一化,并将每个频谱的归一化因子索引提供给量化精度确定单元(13)。 量化精度确定单元(13)使用听觉属性将加权因子与经过规范化和范围转换的范围转换频谱信号的频谱的归一化因子指数相加,并且根据加法结果确定量化精度 。 然后,量化单元(14)对从量化精度确定单元(13)提供的量化精度指标对应的量化精度进行量化,而编码/代码串生成单元(15)对从量化精度确定单元(13)提供的加权因子 精度确定单元(13)以及归一化因子索引和量化频谱信号。
    • 9. 发明授权
    • Encoding device and decoding device
    • 编码设备和解码设备
    • US07933417B2
    • 2011-04-26
    • US11324633
    • 2006-01-03
    • Keisuke ToyamaShiro SuzukiMinoru Tsuji
    • Keisuke ToyamaShiro SuzukiMinoru Tsuji
    • H04R5/00G10L19/00G10L19/14H03M7/00H03M7/34H04B14/04
    • H04B1/667G10L19/0208
    • The present invention relates to an encoding device for saving the number of bits of codes. In step S11, the differential value between a normalization coefficient Bi to be encoded and a normalization coefficient Bi-1 for an encoding unit Ai-1 in a band adjacent to the lower side of an encoding unit Ai corresponding to the normalization coefficient Bi is computed. In step S12, reference is made to a table in which a differential value having a high frequency of occurrence is associated with a code having a small number of bits, and a code corresponding to the computed differential value is read. In step S13, it is determined whether or not all normalization coefficients B have been encoded. If it is determined that all normalization coefficients B have been encoded, in step S14, the code read in step S12 is output. The present invention is applicable to an audio recorder.
    • 本发明涉及一种用于节省代码比特数的编码装置。 在步骤S11中,计算要编码的归一化系数Bi与与归一化系数Bi相对应的编码单元Ai的下侧的频带中的编码单位Ai-1的归一化系数Bi-1的差分值 。 在步骤S12中,参考具有高出现频率的差分值与具有少量位的代码相关联的表,并且读取与所计算出的差分值相对应的代码。 在步骤S13中,确定所有归一化系数B是否已被编码。 如果确定所有归一化系数B已被编码,则在步骤S14中,输出在步骤S12中读取的代码。 本发明可应用于音频记录器。