公开(公告)号：US08183915B2

公开(公告)日：2012-05-22

申请号：US13151777

申请日：2011-06-02

申请人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

发明人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

IPC分类号： H03D3/28

CPC分类号： H03L7/183 ,  H03L1/022

摘要： An oscillator unit is configured such that a frequency adjustment unit of a synthesizer used by a controller is smaller than a frequency variation tracking capability of a demodulator connected to an output side of a frequency converter. This structure successfully combines the temperature compensation control of an oscillator unit and the receiving process of a high-frequency receiving device. Accordingly, an oscillator unit with large temperature coefficient is applicable to high-frequency receiving devices.

摘要翻译： 振荡器单元被配置为使得控制器使用的合成器的频率调节单元小于连接到变频器的输出侧的解调器的频率变化跟踪能力。 该结构成功地组合了振荡器单元的温度补偿控制和高频接收装置的接收处理。 因此，具有高温度系数的振荡器单元适用于高频接收装置。

公开(公告)号：US08040178B2

公开(公告)日：2011-10-18

申请号：US12671340

申请日：2008-07-28

申请人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

发明人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

IPC分类号： H03D3/28

CPC分类号： H03L7/183 ,  H03L1/022

摘要： An oscillator unit is configured such that a frequency adjustment unit of a synthesizer used by a controller is smaller than a frequency variation tracking capability of a demodulator connected to an output side of a frequency converter. This structure successfully combines the temperature compensation control of an oscillator unit and the receiving process of a high-frequency receiving device. Accordingly, an oscillator unit with large temperature coefficient is applicable to high-frequency receiving devices.

摘要翻译： 振荡器单元被配置为使得控制器使用的合成器的频率调节单元小于连接到变频器的输出侧的解调器的频率变化跟踪能力。 该结构成功地组合了振荡器单元的温度补偿控制和高频接收装置的接收处理。 因此，具有高温度系数的振荡器单元适用于高频接收装置。

公开(公告)号：US20100201412A1

公开(公告)日：2010-08-12

申请号：US12671340

申请日：2008-07-28

申请人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

发明人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

IPC分类号： H03L7/08

CPC分类号： H03L7/183 ,  H03L1/022

摘要： An oscillator unit is configured such that a frequency adjustment unit of a synthesizer used by a controller is smaller than a frequency variation tracking capability of a demodulator connected to an output side of a frequency converter. This structure successfully combines the temperature compensation control of an oscillator unit and the receiving process of a high-frequency receiving device. Accordingly, an oscillator unit with large temperature coefficient is applicable to high-frequency receiving devices.

摘要翻译： 振荡器单元被配置为使得控制器使用的合成器的频率调节单元小于连接到变频器的输出侧的解调器的频率变化跟踪能力。 该结构成功地组合了振荡器单元的温度补偿控制和高频接收装置的接收处理。 因此，具有高温度系数的振荡器单元适用于高频接收装置。

公开(公告)号：US20110260787A1

公开(公告)日：2011-10-27

申请号：US13151777

申请日：2011-06-02

申请人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

发明人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

IPC分类号： H03D3/02

CPC分类号： H03L7/183 ,  H03L1/022

摘要： An oscillator unit is configured such that a frequency adjustment unit of a synthesizer used by a controller is smaller than a frequency variation tracking capability of a demodulator connected to an output side of a frequency converter. This structure successfully combines the temperature compensation control of an oscillator unit and the receiving process of a high-frequency receiving device. Accordingly, an oscillator unit with large temperature coefficient is applicable to high-frequency receiving devices.

摘要翻译： 振荡器单元被配置为使得控制器使用的合成器的频率调节单元小于连接到变频器的输出侧的解调器的频率变化跟踪能力。 该结构成功地组合了振荡器单元的温度补偿控制和高频接收装置的接收处理。 因此，具有高温度系数的振荡器单元适用于高频接收装置。

公开(公告)号：US07787841B2

公开(公告)日：2010-08-31

申请号：US11573956

申请日：2006-06-05

申请人： Yasunobu Tsukio ,  Hiroaki Ozeki

发明人： Yasunobu Tsukio ,  Hiroaki Ozeki

IPC分类号： H04B17/02

CPC分类号： H04B7/0871 ,  H04B7/0842 ,  H04B7/0851 ,  H04B7/0874

摘要： The demodulator in the receiving module of the invention supplies a signal produced based on a signal level detected by a first detector to a second amplifier as an amplification degree adjustment signal. With this arrangement, when a second receiver works, an AGC voltage supplied to the second receiver is already close to an ultimately converging certain value. The AGC voltage supplied to the second receiver is thus stabilized in its value, from the value close to the ultimately converging certain value to the certain value. Accordingly, a time period required from the second receiver starts working until the AGC voltage supplied to second amplifier ultimately converges into the certain value is shortened.

摘要翻译： 本发明的接收模块中的解调器将基于由第一检测器检测的信号电平产生的信号作为放大度调整信号提供给第二放大器。 利用这种布置，当第二接收器工作时，提供给第二接收器的AGC电压已经接近最终收敛到某一值。 因此，提供给第二接收机的AGC电压从接近最终收敛到特定值的值稳定在其值。 因此，第二接收器所需的时间段开始工作，直到提供给第二放大器的AGC电压最终收敛到该特定值。

公开(公告)号：US20090063911A1

公开(公告)日：2009-03-05

申请号：US11911986

申请日：2006-04-27

申请人： Yasunobu Tsukio ,  Hiroaki Ozeki ,  Keiichi Kitazawa

发明人： Yasunobu Tsukio ,  Hiroaki Ozeki ,  Keiichi Kitazawa

IPC分类号： G06F11/00

CPC分类号： H04B7/0877 ,  H04B7/0802 ,  H04B7/0837 ,  H04L27/2647 ,  H04W52/0245 ,  Y02D70/10 ,  Y02D70/444

摘要： In digital broadcast receiver (100), when a bit error rate (BER) is larger than a threshold in BER determining part (109), power is supplied to tuner (103) and tuner (104) for diversity reception. When the BER is smaller than the threshold, power supply to one of tuner (103) and tuner (104) is stopped for single reception. This structure allows power supply to one of the tuners to be stopped in excellent reception environments, thus reducing power consumption.

摘要翻译： 在数字广播接收机（100）中，当误码率（BER）大于BER确定部分（109）中的阈值时，功率被提供给调谐器（103）和调谐器（104）用于分集接收。 当BER小于阈值时，针对单次接收停止向调谐器（103）和调谐器（104）之一供电。 这种结构允许在优良的接收环境中停止调谐器之一的电力供应，从而降低功耗。

公开(公告)号：US08433013B2

公开(公告)日：2013-04-30

申请号：US12933163

申请日：2009-04-08

申请人： Yusuke Nakano ,  Hiroaki Ozeki ,  Yasunobu Tsukio ,  Takeshi Fujii

发明人： Yusuke Nakano ,  Hiroaki Ozeki ,  Yasunobu Tsukio ,  Takeshi Fujii

IPC分类号： H04L27/06

CPC分类号： H03J3/08 ,  H03H11/126 ,  H03H11/1286 ,  H03H11/1291

摘要： A receiver includes an oscillator for generating a local oscillator signal, a frequency converter for heterodyning a received signal of one frequency band or a plurality of frequency bands into an intermediate frequency (IF) signals with using the local oscillator signal, a filter connected to an output of the frequency converter and having a cut-off frequency changeable, an analog-digital (AD) converter connected to an output of the filter to convert an analog signal of one frequency band or a plurality of frequency bands into a digital signal, a pre-stage detector connected to an output of the AD converter or connected between the filter and the AD converter to detect a signal level, and a controller for controlling the cut-off frequency of the filter based on the signal level detected by the pre-stage detector.

摘要翻译： 接收机包括用于产生本地振荡器信号的振荡器，用于使用本地振荡器信号将一个频带或多个频带的接收信号外差分成中频（IF）信号的频率转换器，连接到 频率转换器的输出和截止频率可变的模拟数字（AD）转换器，连接到滤波器的输出，以将一个频带或多个频带的模拟信号转换为数字信号， 前级检测器连接到AD转换器的输出端或连接在滤波器和AD转换器之间以检测信号电平;以及控制器，用于根据预处理器检测到的信号电平来控制滤波器的截止频率， 舞台探测器。

公开(公告)号：US07944996B2

公开(公告)日：2011-05-17

申请号：US12066403

申请日：2007-05-30

申请人： Yasunobu Tsukio ,  Hiroaki Ozeki ,  Sigeru Soga

发明人： Yasunobu Tsukio ,  Hiroaki Ozeki ,  Sigeru Soga

IPC分类号： H03K9/00 ,  H04L27/00

CPC分类号： H04L1/20 ,  H04B7/0802 ,  H04L25/022 ,  H04L25/0232 ,  H04L25/03159 ,  H04L27/2647

摘要： An OFDM reception device includes: a first channel estimation unit for estimating a channel distortion by using a signal that is supplied from the reception unit and has a first time interval; a second channel estimation unit for estimating a channel distortion by using a signal that is supplied from the reception unit and has a second time interval shorter than the first time interval; a selection unit for selecting and outputting one of a signal from the first channel estimation unit and a signal from the second channel estimation unit, according to a control signal from the control unit; and a correction unit for correcting a reception signal supplied from the reception unit, according to the channel estimation signal from the selection unit. The control unit determines the control signal to be supplied to the selection unit, according a reception state of the reception unit.

摘要翻译： OFDM接收装置包括：第一信道估计单元，用于通过使用从接收单元提供并具有第一时间间隔的信号来估计信道失真; 第二信道估计单元，用于通过使用从所述接收单元提供并且具有比所述第一时间间隔短的第二时间间隔的信号来估计信道失真; 选择单元，用于根据来自控制单元的控制信号选择并输出来自第一信道估计单元的信号和来自第二信道估计单元的信号中的一个; 以及校正单元，用于根据来自选择单元的信道估计信号校正从接收单元提供的接收信号。 控制单元根据接收单元的接收状态确定要提供给选择单元的控制信号。

公开(公告)号：US08064558B2

公开(公告)日：2011-11-22

申请号：US12090121

申请日：2007-08-28

申请人： Yasunobu Tsukio ,  Hiroaki Ozeki

发明人： Yasunobu Tsukio ,  Hiroaki Ozeki

IPC分类号： H04L7/00

CPC分类号： H04B7/08 ,  H04N5/4401 ,  H04N21/4263 ,  H04N21/4345 ,  H04N21/4382

摘要： A receiving apparatus includes a first receiver, a second receiver, a received signal synthesizer connected to the first and second receivers, a synchronizing signal synthesizer connected to the first and second receivers, and a synchronization detector connected to the synchronizing signal synthesizer. In this structure, synchronization determination is performed using a synchronizing signal of either the first or second receiver, and diversity reception is performed using the received signals of the first and second receivers.

摘要翻译： 接收装置包括第一接收机，第二接收机，连接到第一和第二接收机的接收信号合成器，连接到第一和第二接收机的同步信号合成器以及连接到同步信号合成器的同步检测器。 在该结构中，使用第一或第二接收机的同步信号来执行同步确定，并且使用第一和第二接收机的接收信号执行分集接收。

公开(公告)号：US20100035570A1

公开(公告)日：2010-02-11

申请号：US12519006

申请日：2008-02-05

申请人： Yasunobu Tsukio ,  Hiroaki Ozeki

发明人： Yasunobu Tsukio ,  Hiroaki Ozeki

IPC分类号： H04B1/06

CPC分类号： H04B7/0817 ,  H04B7/0857 ,  H04B7/0877

摘要： If receiving circuit is in a high-sensitivity mode, receiving circuit is switched to a low-sensitivity mode when the BER according to BER measurement circuit becomes more favorable than a release threshold. If receiving circuit is in the low-sensitivity mode, receiving circuit is switched to the high-sensitivity mode when the BER according to BER measurement circuit becomes more adverse than a start-up threshold. If switching between the high-sensitivity and low-sensitivity modes occurs, control is exercised so that switching from the high-sensitivity mode to the low is resistant to occurring, thereby suppressing the occurrence of a reception error caused by switching between the receiving modes.

摘要翻译： 如果接收电路处于高灵敏度模式，则当根据BER测量电路的BER变得比释放阈值更好时，接收电路被切换到低灵敏度模式。 如果接收电路处于低灵敏度模式，则当根据BER测量电路的BER比启动阈值更不利时，接收电路切换到高灵敏度模式。 如果发生高灵敏度和低灵敏度模式之间的切换，则进行控制，使得从高灵敏度模式切换到低阻抗发生，从而抑制由接收模式之间的切换引起的接收错误的发生。