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21. 发明授权

US07787841B2 Receiving module and receiving device using the same 有权
标题翻译：接收模块和接收设备使用相同
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。

22. 发明申请

US20090274249A1 RADIO-FREQUENCY RECEIVER AND INTEGRATED CIRCUIT EMPLOYED FOR THE RECEIVER 失效
标题翻译：无线电频率接收机和接收机采用的集成电路
公开(公告)号：US20090274249A1
公开(公告)日：2009-11-05
申请号：US11722027
申请日：2006-08-04
申请人： Eiji Okada , Hiroaki Ozeki
发明人： Eiji Okada , Hiroaki Ozeki
IPC分类号： H04L27/06
CPC分类号： H04B1/0082 , H04B7/0817 , H04B7/12
摘要： Radio-frequency receiver contains a plurality of oscillation circuits that generates an oscillation frequency higher than that of digital broadcasting signals, selective switching circuit that selects two out of the oscillation circuits for signal output, and first and second frequency-divider sections that provide the signals with frequency dividing. The receiver receives two channels in the digital broadcasting signals at the same time by selection of oscillation signals and frequency dividing in the first and the second frequency-divider sections under the control of PLL controller.
摘要翻译：射频接收机包含产生比数字广播信号高的振荡频率的多个振荡电路，选择用于信号输出的振荡电路中的两个的选择开关电路以及提供信号的第一和第二分频器部分分频。接收机在PLL控制器的控制下通过选择振荡信号和分频在第一和第二分频器部分中同时在数字广播信号中接收两个信道。

23. 发明授权

US07532871B2 Receiver 失效
标题翻译：接收器
公开(公告)号：US07532871B2
公开(公告)日：2009-05-12
申请号：US11517673
申请日：2006-09-08
申请人： Daisuke Nishimura , Hiroaki Ozeki , Yasuo Ooba
发明人： Daisuke Nishimura , Hiroaki Ozeki , Yasuo Ooba
IPC分类号： H04B1/18 , H04B7/08
CPC分类号： H04B1/0053 , H04B1/0064 , H04B7/12
摘要： A receiver includes (i) a first filter coupled to a first antenna and passing a signal in a first frequency band, (ii) a first receiver part for receiving the signal in the first frequency band from one of input terminals thereof coupled on the output side of the first filter, (iii) a second filter coupled to the first antenna and passing a signal in a second frequency band, and (iv) a second receiver part for receiving the signal in the second frequency band from one of input terminals thereof coupled on the output side of the second filter. The receiver makes diversity reception of a signal in a third frequency band received from the other input terminal of the first receiver part, and a signal in the third frequency band received from the other input terminal of the second receiver part.
摘要翻译：接收机包括：（i）耦合到第一天线并在第一频带中传递信号的第一滤波器，（ii）第一接收器部分，用于从耦合在输出端的输入端之一接收第一频带中的信号第一滤波器侧，（iii）耦合到第一天线并且传递第二频带中的信号的第二滤波器，以及（iv）第二接收器部分，用于从其输入端子之一接收第二频带中的信号耦合在第二滤波器的输出侧。接收机对从第一接收机部分的另一输入端接收的第三频带中的信号进行分集接收，并从第二接收机部分的另一输入端接收第三频带中的信号。

24. 发明申请

US20090063911A1 DIGITAL BROADCAST RECEIVER 有权
标题翻译：数字广播接收机
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。

25. 发明授权

US07486940B2 Digital broadcast receiving apparatus 失效
标题翻译：数字广播接收装置
公开(公告)号：US07486940B2
公开(公告)日：2009-02-03
申请号：US10528307
申请日：2004-03-15
申请人： Hiroaki Ozeki , Hisaya Kato , Sadashi Kageyama , Takeo Yasuho
发明人： Hiroaki Ozeki , Hisaya Kato , Sadashi Kageyama , Takeo Yasuho
IPC分类号： H04B1/06 , H04B7/00
CPC分类号： H04B7/10 , H04B7/0802 , H04B7/0814 , H04H20/28 , H04H40/18 , H04H60/11
摘要： A digital broadcast receiving apparatus, which has a receiving circuit for receiving a transmitted high frequency signal of a plurality of time division multiplexed programs, includes a circuit for selecting a better receiving characteristic condition while a desired program is not received.
摘要翻译：具有用于接收多个时分多路复用节目的发送的高频信号的接收电路的数字广播接收装置包括用于在不接收期望的节目时选择更好的接收特性条件的电路。

26. 发明授权

US06363126B1 Demodulator 失效
标题翻译：解调器
公开(公告)号：US06363126B1
公开(公告)日：2002-03-26
申请号：US09209734
申请日：1998-12-11
申请人： Hitonobu Furukawa , Masami Takigawa , Akira Mishima , Hiroaki Ozeki , Sachiko Hayashi
发明人： Hitonobu Furukawa , Masami Takigawa , Akira Mishima , Hiroaki Ozeki , Sachiko Hayashi
IPC分类号： H04L2706
CPC分类号： H04L27/066 , H04L27/2273 , H04L2027/0016 , H04L2027/0028 , H04L2027/0057 , H04L2027/0065
摘要： The invention presents an apparatus capable of demodulating stably if there are time-course changes in the constituent parts in a demodulator of digital modulated signal. This demodulator comprises an operator for setting the oscillation frequency of a local oscillator 2, and within a passing frequency band of a band pass filter BPF 3, the operator controls the local oscillator 2 so that the frequency of the output signal of a first mixer 1 may settle within a control band in a controllable frequency band of an AFC feedback loop composed of an orthogonal detector 4, a carrier regenerator 9, a frequency error detector 10, a frequency controller 11, a signal selector 12, a D/A converter 13, and a VCO 14, and a local carrier is issued from the local oscillator 2 to the first mixer 1.
摘要翻译：本发明提供了一种如果在数字调制信号的解调器中的组成部分存在时间间隔变化的情况下能够稳定地进行解调的装置。该解调器包括用于设置本地振荡器2的振荡频率的操作者，并且在带通滤波器BPF 3的通过频带内，操作者控制本地振荡器2，使得第一混频器1的输出信号的频率可以在由正交检测器4，载波再生器9，频率误差检测器10，频率控制器11，信号选择器12，D / A转换器13组成的AFC反馈回路的可控频带内的控制频带内和VCO14，并且本地载波从本地振荡器2发出到第一混频器1。

27. 发明授权

US5061999A Multiplex signal processing apparatus 失效
标题翻译：多路复用信号处理装置
公开(公告)号：US5061999A
公开(公告)日：1991-10-29
申请号：US268966
申请日：1988-11-09
申请人： Seiji Sakashita , Hiroaki Ozeki , Ippei Kanno , Yoshio Abe
发明人： Seiji Sakashita , Hiroaki Ozeki , Ippei Kanno , Yoshio Abe
IPC分类号： H04N7/015 , H04N7/045 , H04N7/08 , H04N11/24
CPC分类号： H04N7/015 , H04N11/008 , H04N7/045 , H04N7/08
摘要： A signal of the same frequency band as an ordinary NTSC signal of the video signals is transmitted with the conventional frequency band but the other frequency components are frequency-converted to a frequency higher than the sound subcarrier as the multiplex signal. The ordinary video signal, sound subcarrier and multiplex signal are frequency-multiplexed and the main carrier is transmitted by angle modulation as the modulation signal. In this case, as the multiplex signal, a signal other than the ordinary signal may directly be frequency-multiplexed and the signal may be multiplexed. Using amplitude or angle modulation to improve the demodulation accuracy or S/N through the angle modulation. The ordinary signal is regenerated like in the conventional system, without influence on the conventional receiver. In addition, since the ordinary video signal and the multiplex signal are separated in the frequency band, these may be used as the independent new transmission bands. Therefore, information other than the video signal can also be transmitted.
摘要翻译：与传统频带一起发送与视频信号的普通NTSC信号相同的频带的信号，但是其他频率分量被频率转换为高于声音副载波的频率作为多路复用信号。普通视频信号，声音副载波和多路复用信号被频率复用，主载波通过角度调制发送作为调制信号。在这种情况下，作为复用信号，除了普通信号之外的信号可以直接进行频率复用，并且信号可以被多路复用。使用幅度或角度调制通过角度调制来提高解调精度或S / N。普通信号像常规系统一样被再生，而不影响传统的接收机。此外，由于普通视频信号和多路复用信号在频带中被分离，所以它们可以用作独立的新的传输频带。因此，也可以发送视频信号以外的信息。

28. 发明授权

US4939789A Signal receiver for terrestrial and satellite broadcastings 失效
标题翻译：用于地面和卫星广播的信号接收机
公开(公告)号：US4939789A
公开(公告)日：1990-07-03
申请号：US145872
申请日：1988-01-20
申请人： Seiji Sakashita , Hiroaki Ozeki , Ippei Kanno
发明人： Seiji Sakashita , Hiroaki Ozeki , Ippei Kanno
IPC分类号： H03D5/00
CPC分类号： H03D5/00
摘要： A signal receiver which is capable of receiving and demodulating a satellite broadcasting signal which is an FM signal and a terrestrial broadcasting signal which is an AM signal is disclosed. FM and AM signals are frequency-converted into signals having frequencies in a same intermediate frequency band by making common use of a radio frequency amplifier, a mixer, a local oscillator and an intermediate frequency filter. At the time of reception of an FM signal, the FM signal is demodulated in a phase-locked loop circuit, and a local oscillator is subjected to frequency modulation by a part of the demodulated signal, thereby constituting an FM negative feedback loop, and thus narrowing the occupied bandwidth of the FM signal. At the time of reception of an AM signal, the phase-locked loop circuit is used to regenerate a carrier, and the output signal of the phase-locked loop circuit is input to a multiplier to effect synchronous detection of the input signal. At this time, the FM negative feedback to the local oscillator is utilized to effect automatic frequency control, thereby achieving stabilization of the synchronous detection.

29. 发明授权

US08433013B2 Receiver and electronic device using the same 失效
标题翻译：接收机和电子设备使用相同
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。

30. 发明授权

US08311155B2 Electronic tuner and high frequency receiving device using the same 失效
标题翻译：电子调谐器和使用高频接收装置的高频接收装置
公开(公告)号：US08311155B2
公开(公告)日：2012-11-13
申请号：US12808461
申请日：2008-12-24
申请人： Takashi Umeda , Hiroaki Ozeki , Akira Fujishima
发明人： Takashi Umeda , Hiroaki Ozeki , Akira Fujishima
IPC分类号： H04L25/06
CPC分类号： H04B1/30 , H04L25/0224 , H04L25/067 , H04L27/2647 , H04L2027/004
摘要： Demodulator includes reception quality evaluation circuit for evaluating the quality of a received signal by comparison with a first reference value, and outputting an evaluation signal; and driving circuit receiving the evaluation signal. If reception quality evaluation circuit evaluates that the quality of the received signal is acceptable, power supply from driving circuit to DC offset control loop is stopped. This offers a high-frequency receiver that reduces power consumption.
摘要翻译：解调器包括：接收质量评估电路，用于通过与第一参考值进行比较来评估接收信号的质量，并输出评估信号; 以及接收所述评估信号的驱动电路。如果接收质量评估电路评估接收信号的质量是可接受的，则停止从驱动电路到DC偏移控制环路的电源。这提供了一个降低功耗的高频接收器。

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