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    • 4. 发明授权
    • Signal processing device and wireless apparatus
    • 信号处理装置和无线装置
    • US08228970B2
    • 2012-07-24
    • US12213881
    • 2008-06-25
    • Kaoru KobayashiShigeru TakegishiNobuo Tsukamoto
    • Kaoru KobayashiShigeru TakegishiNobuo Tsukamoto
    • H04B1/00
    • H04B1/707
    • There is provided a signal processing device and a wireless apparatus capable of not erroneously determining polarity, appropriately performing a spread modulation process, a carrier modulation process, and reception data demodulation process, improving reception accuracy, and miniaturizing a circuit, even when IF carrier frequency shift occurs. The signal processing device and the wireless apparatus includes a spread modulation unit which includes a first differential encoding process section for performing a differential encoding process on a reception data, a differential encoding process section for performing a second differential encoding process on the output, and a spread modulation process section for performing a spread modulation process on the output using a spread code; a carrier modulation unit which quadrature-modulates a transmission data spread modulation signal and a continuous wave; and a reception data decoding unit which performs a correlation process twice and a delay detection process twice.
    • 提供了一种能够不错误地确定极性的信号处理装置和无线装置,适当地执行扩频调制处理,载波调制处理和接收数据解调处理,提高接收精度和使电路小型化,即使在IF载波频率 班次发生。 信号处理装置和无线装置包括扩展调制部,其包括对接收数据进行差分编码处理的第一差分编码处理部,对输出进行第二差分编码处理的差分编码处理部, 扩展调制处理部分,用于使用扩展码对输出进行扩展调制处理; 载波调制单元,对发送数据扩展调制信号和连续波进行正交调制; 以及接收数据解码单元,其执行两次相关处理和延迟检测处理两次。
    • 8. 发明申请
    • Wireless communication device
    • 无线通信设备
    • US20090279646A1
    • 2009-11-12
    • US12458678
    • 2009-07-20
    • Kaoru KobayashiShigeru Takegishi
    • Kaoru KobayashiShigeru Takegishi
    • H04L27/06
    • H04L27/0014H04B1/70752
    • A wireless communication device is provided to carry out correlation peak detection processing properly and efficiently in intermittent receiving unit. If a correlation peak is not detected in a first period in which a correlation peak detecting unit detects the correlation peak at a default frequency and a first frequency in a detecting period of a coarse frequency deviation detecting unit in the first period, a control unit makes the correlation peak detecting unit carry out the peak detection at the first frequency in a second period. If the correlation peak is detected in the correlation peak detecting unit and a second frequency is detected in a detecting period of a fine frequency deviation detecting unit in the first period, the control unit makes the correlation peak detecting unit carry out the peak detection at the first and second frequencies in a third period.
    • 提供一种无线通信装置,用于在间歇接收单元中适当且有效地执行相关峰值检测处理。 如果在第一期间中相关峰值检测部检测到粗略频率偏差检测部的检测期间的默认频率的相关峰值和第一频率的第一期间没有检测到相关峰值,则控制部 相关峰值检测单元在第二周期中以第一频率执行峰值检测。 如果在相关峰值检测单元中检测到相关峰值,并且在第一周期内在精细频率偏差检测单元的检测周期中检测到第二频率,则控制单元使相关峰值检测单元在 第一和第二频率在第三个时期。
    • 9. 发明申请
    • Signal processing unit and wireless communication device
    • 信号处理单元和无线通信设备
    • US20090196331A1
    • 2009-08-06
    • US12382158
    • 2009-03-10
    • Kaoru KobayashiShigeru Takegishi
    • Kaoru KobayashiShigeru Takegishi
    • H04B1/00
    • H04L27/0014H04B1/70752H04L2027/0036H04L2027/0051H04L2027/0095
    • A signal processing unit and a wireless communication device are provided for making it possible to detect a frequency by means of a small scale operation circuit in a short time. The signal processing unit and the wireless communication device are comprised of a carrier data generating unit; a carrier demodulation unit; a matched filter unit that divides carrier demodulated data into a plurality of portions, carries out despread processing and accumulating operation processing as partial correlation processing, further carries out full addition processing for the partial correlation processing result, and outputs correlation detected data; a correlation peak detecting unit that detects a correlation peak from the correlation detected data and outputs correlation peak position information; a coarse frequency deviation detecting unit that outputs a frequency deviation amount with respect to the carrier demodulated data to the carrier data generating unit; and a fine frequency deviation detecting unit that outputs a fine frequency deviation amount from the correlation detected data and the correlation peak position information to the carrier data generating unit.
    • 提供信号处理单元和无线通信装置,以便能够在短时间内利用小规模的操作电路来检测频率。 信号处理单元和无线通信设备包括载波数据生成单元; 载波解调单元; 将载波解调数据分割为多个部分的匹配滤波器单元,进行解扩处理并积累作为部分相关处理的运算处理,进一步执行部分相关处理结果的全相加处理,并输出相关检测数据; 相关峰值检测单元,根据相关检测数据检测相关峰值,并输出相关峰值位置信息; 粗频率偏差检测单元,向载波数据生成单元输出相对于载波解调数据的频率偏差量; 以及精细频率偏差检测单元,其将相关检测数据和相关峰值位置信息的精细频率偏差量输出到载波数据生成单元。