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    • 62. 发明申请
    • SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE
    • 半导体集成电路设备
    • US20080116934A1
    • 2008-05-22
    • US11970370
    • 2008-01-07
    • Hiroyuki MizunoKoichiro IshibashiMasayuki Miyazaki
    • Hiroyuki MizunoKoichiro IshibashiMasayuki Miyazaki
    • H03K3/01
    • H01L27/0207H01L27/092H01L27/105H03K3/011H03K3/0315H03K19/0016
    • A semiconductor device which includes a frequency-variable oscillation circuit including plural inverters, each of which features a PMOS transistor and a NMOS transistor, a first substrate bias generator including a first phase/frequency compare circuit that compares an output signal from the frequency-variable oscillation circuit with a reference clock signal and generating a first substrate bias voltage in response thereto, the first substrate bias voltage being supplied to substrates of the PMOS transistors in the oscillation circuit, and a second substrate bias generator including a second phase/frequency compare circuit that compares the output signal from the frequency-variable oscillation circuit with the reference clock and generating a second substrate bias voltage in response thereto, the second substrate bias voltage being supplied to substrates of the NMOS transistors in the oscillation circuit.
    • 一种半导体器件,包括具有多个反相器的频率可变振荡电路,每个反相器具有PMOS晶体管和NMOS晶体管,第一衬底偏置发生器包括第一相位/频率比较电路,其比较来自频率变量 具有参考时钟信号的振荡电路,并响应于此产生第一衬底偏置电压,第一衬底偏置电压被提供给振荡电路中的PMOS晶体管的衬底,第二衬底偏置发生器包括第二相/频率比较电路 其将来自频率可变振荡电路的输出信号与参考时钟进行比较,并响应于此产生第二衬底偏置电压,第二衬底偏置电压被提供给振荡电路中的NMOS晶体管的衬底。
    • 67. 发明申请
    • Receiver
    • 接收器
    • US20060120441A1
    • 2006-06-08
    • US11288349
    • 2005-11-29
    • Tatsuo NakagawaRyosuke FujiwaraMasayuki MiyazakiGoichi Ono
    • Tatsuo NakagawaRyosuke FujiwaraMasayuki MiyazakiGoichi Ono
    • H04B1/707H04L27/22
    • H04B1/71637
    • With the objective of enhancing receiving performance of a receiver with respect to pulse signals spread by spread codes, the receiver comprises an RF front-end section which performs amplification, an AD converter section which AD-converts signals outputted from the RF front-end section, a baseband section which inversely spreads the output of the AD converter section and performs signal detection and demodulation thereon, a reception environment measuring section which measures reception environment using the input signals of the baseband section, and a parameter setting section which sets parameters for respective parts on the basis of signals outputted from the reception environment measuring section. The parameter setting section sets the parameters for the respective parts to the optimum according to the environmental condition measured by the reception environment measuring section.
    • 为了提高接收机相对于由扩展码扩展的脉冲信号的接收性能,接收机包括执行放大的RF前端部分,对从RF前端部分输出的信号进行AD转换的AD转换器部分 基带部分,其对AD转换器部分的输出进行反扩频并对其进行信号检测和解调;接收环境测量部分,其使用基带部分的输入信号测量接收环境;以及参数设置部分,其设置各自的参数 基于从接收环境测量部输出的信号。 参数设定部根据由接收环境测定部测定的环境条件,将各部分的参数设定为最佳。