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    • 2. 发明申请
    • Data processing apparatus
    • 数据处理装置
    • US20070067379A1
    • 2007-03-22
    • US10575861
    • 2004-10-06
    • Hiroyuki MotozukaRyutaro Yamanaka
    • Hiroyuki MotozukaRyutaro Yamanaka
    • G06F7/38
    • G06F15/8023G06F15/7867
    • A reconfigurable data processing apparatus. In this apparatus, many cells A 100 for performing ALU processing and cells B 150 for performing bit processing are arranged, each cell includes n-bit input/output ports and the cells are connected through a network with n-bit buses. Furthermore, when the number of output bits is smaller than n, cell B 150 fixes bits of orders irrelevant to outputs to “0” or “1.” When the bussed ALU processing part and bit processing part are combined to perform data processing, this makes it possible to execute ALU processing and bit processing efficiently and realize high-speed, parallel processing.
    • 一种可重构数据处理装置。 在该装置中,配置用于执行ALU处理的许多单元A 100和用于执行位处理的单元B 150,每个单元包括n位输入/输出端口,并且单元通过具有n位总线的网络连接。 此外,当输出位数小于n时,单元B 150将与输出无关的位的位固定为“0”或“1”。 当总线的ALU处理部分和位处理部分被组合以执行数据处理时,这使得可以有效地执行ALU处理和位处理并实现高速并行处理。
    • 5. 发明授权
    • Demodulation apparatus performing different frequency control functions
using separately provided oscillators
    • 解调装置使用分开提供的振荡器执行不同的频率控制功能
    • US6023491A
    • 2000-02-08
    • US492488
    • 1995-06-20
    • Hiroshi SakaKazunao UrataShigeru Soga
    • Hiroshi SakaKazunao UrataShigeru Soga
    • H04L27/00H04L27/227H04L27/14
    • H04L27/2273H04L2027/0028H04L2027/0057
    • A QPSK modulation signal is processed with frequency conversion into an IF signal by a channel selection circuit, and then is converted into a baseband signal by a quadrature demodulator. The baseband signal has a wave thereof shaped by DTFs and then sent to a carrier recovery circuit. An offset frequency of the IF signal detected by an AFC circuit is compensated for by a baseband frequency converter including a complex multiplier and a DVCO. The frequency tracking circuit detects whether an operating frequency of another DVCO in the carrier recovery circuit goes beyond a range. By tracking an oscillation frequency of the DVCO in the baseband frequency converter so as not to go beyond the reference value, frequency deviation of the spectrum of signals which are input to the DTFs is controlled not to go beyond the reference value. By offsetting a frequency dividing ratio of a variable frequency divider of the channel selection circuit by an amount corresponding to the offset frequency of the IF signal detected by the frequency detector, the frequency deviation of the QPSK modulation signal can be compensated for whichever channel is selected.
    • 通过频道选择电路对QPSK调制信号进行频率转换处理成IF信号,然后由正交解调器转换为基带信号。 基带信号具有由DTF形状的波形,然后发送到载波恢复电路。 由AFC电路检测的IF信号的偏移频率由包括复数乘法器和DVCO的基带频率转换器补偿。 频率跟踪电路检测载波恢复电路中的另一DVCO的工作频率是否超出范围。 通过跟踪基带频率转换器中的DVCO的振荡频率以便不超过参考值,控制输入到DTF的信号频谱的频率偏差不超过参考值。 通过将频道选择电路的可变分频器的分频比偏移与由频率检测器检测的IF信号的偏移频率相对应的量,可以补偿QPSK调制信号的频率偏移,以选择哪个信道 。
    • 7. 发明申请
    • Noise Suppression Device and Noise Suppression Method
    • 噪声抑制装置和噪声抑制方法
    • US20080281589A1
    • 2008-11-13
    • US11629381
    • 2005-05-30
    • Youhua WangTakuya KawashimaKoji Yoshida
    • Youhua WangTakuya KawashimaKoji Yoshida
    • G10L21/00
    • G10L21/0208G10L21/0232G10L25/93
    • There is disclosed a noise suppression device capable of improving the noise suppression accuracy while reducing the audio distortion. In this device, a suppression unit suppresses a noise component from the audio power spectrum by using the detection result of the audio-existing band and the noise band in the audio power spectrum including the noise component. A pitch harmonic structure extracting unit (105) extracts a pitch harmonic power spectrum from the audio power spectrum. An audio-existence judgment unit (106) judges whether the audio power spectrum has audio existence according to the extracted pitch harmonic power spectrum. A pitch harmonic structure repair unit (108) repairs the extracted pitch harmonic power spectrum. A per-band audio/noise correction unit (109) corrects the detection result according to the pitch harmonic power spectrum selected according to the result of judgment by the audio-existence judgment unit (106) among the repaired pitch harmonic power spectrum and the extracted pitch harmonic power spectrum.
    • 公开了能够在降低音频失真的同时提高噪声抑制精度的噪声抑制装置。 在该装置中,抑制单元通过使用包括噪声分量的音频功率谱中的音频存在频带和噪声频带的检测结果来抑制来自音频功率谱的噪声分量。 音调谐波结构提取单元(105)从音频功率谱中提取音调谐波功率谱。 音频存在判断单元(106)根据所提取的音调谐波功率谱来判断音频功率谱是否具有音频存在。 音调谐波结构修复单元(108)修复所提取的音调谐波功率谱。 每个频带音频/噪声校正单元(109)根据由修正的音调谐波功率谱中的音频存在判断单元(106)的判断结果选择的音调谐波功率谱和所提取的音频/噪声校正单元 音调谐波功率谱。
    • 8. 发明申请
    • MOTOR DRIVE DEVICE
    • 电机驱动装置
    • US20070194730A1
    • 2007-08-23
    • US11676644
    • 2007-02-20
    • Shingo FukamizuYasunori YamamotoShinichi Kuroshima
    • Shingo FukamizuYasunori YamamotoShinichi Kuroshima
    • H02P7/06
    • H02P6/182H02P6/21
    • Problems with accuracy reading position detection signal peaks and minute phase differences in the detection current make motor drive control easily susceptible to differences in motor characteristics. The rotor position is determined based on whether or not a neutral point difference voltage, which is the difference voltage between the neutral point voltage and the pseudo-neutral-point voltage when the motor phases are selectively energized, exceeds a specific threshold value. The phase energized to start the motor is determined based on this determination and the motor is energized accordingly to start. Instead of switching directly from the search step at the initial rotor position to the back-EMF voltage mode, a search and start mode that creates initial rotor speed sufficient to start the motor is executed before entering the back-EMF voltage mode.
    • 读取位置检测信号峰值和检测电流的微小相位差的问题使电机驱动控制容易受到电机特性的差异的影响。 转子位置是基于当电动机相位被选择性地通电时中性点电压和伪中性点电压之间的差分电压是否中性点差电压是否超过特定阈值来确定。 基于该确定确定启动电动机的相位,相应地启动电动机起动。 代替直接从初始转子位置处的搜索步骤切换到反电动势电压模式,在进入反电动势电压模式之前执行产生足以启动电动机的初始转子速度的搜索和启动模式。
    • 9. 发明申请
    • Ofdm reception device and ofdm reception method
    • Ofdm接收设备和接收方式
    • US20060172716A1
    • 2006-08-03
    • US10548809
    • 2004-03-15
    • Isamu YoshiiMasaru Fukuoka
    • Isamu YoshiiMasaru Fukuoka
    • H04B17/00
    • H04L27/2647
    • An interference symbol determining section 208 compares reception power of a signal at an interference position measured by an interference position reception power measuring section 208B with a reception power value of a desired signal measured by a desired signal measuring section 208D for each subcarrier, thereby determines symbols which should be actually treated as interference symbols and outputs the symbols to a turbo decoding section 209. The turbo decoding section 209 determines whether to calculate LLR values of symbols of each subcarrier signal input from a demodulation section 207 or set the LLR values to “0” based on the comparison result of the interference symbol determining section 208 and executes decoding processing.
    • 干扰符号确定部分208将由干扰位置接收功率测量部分208B测量的干扰位置处的信号的接收功率与由每个子载波测量的期望信号测量部分208D的期望信号的接收功率值进行比较,由此 确定实际被视为干扰符号的符号,并将符号输出到turbo解码部分209。 turbo解码部209根据干扰符号判定部208的比较结果,判断是否计算从解调部207输入的每个子载波信号的符号的LLR值,或者将LLR值设定为“0”,进行解码处理。
    • 10. 发明授权
    • Roll-off filter apparatus
    • 滚降式过滤装置
    • US5297074A
    • 1994-03-22
    • US894610
    • 1992-06-05
    • Kouichi Honma
    • Kouichi Honma
    • H04L25/03H03H17/00H03H17/02H04L25/05G06G7/02
    • H04L25/05
    • Disclosed is a roll-off filter apparatus having a small size, a simplified circuit structure and consuming a small amount of power. In the roll-off filter apparatus attaining the above object of the invention, a ramp signal generated from a ramp pattern generator is inserted in each gap of a data input signal temporarily stored in a buffer circuit, and such a signal is filtered in a switched capacitor filter having a roll-off filter characteristic. The output signal of the switched capacitor filter is supplied to be temporarily stored in a bucket brigade device, and the output signal of the bucket brigade device is delivered at a desired signal rate.
    • 公开了一种具有小尺寸,简化的电路结构并消耗少量功率的滚降滤波装置。 在实现本发明上述目的的滚降滤波装置中,将从斜坡模式发生器产生的斜坡信号插入临时存储在缓冲电路中的数据输入信号的每个间隙中,并将这种信号在开关 电容滤波器具有滚降滤波器特性。 开关电容滤波器的输出信号被提供以临时存储在桶式装置中,并且以所需的信号速率传送铲斗旅部件的输出信号。