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1. 发明申请

US20090104885A1 MIXING DEVICE AND RADIO-FREQUENCY RECEIVER USING THE SAME 审中-公开
标题翻译：混合器件和使用该器件的无线电频率接收器
公开(公告)号：US20090104885A1
公开(公告)日：2009-04-23
申请号：US11996683
申请日：2007-07-06
申请人： Sanae Asayama , Atsuhito Terao
发明人： Sanae Asayama , Atsuhito Terao
IPC分类号： H04B1/10 , H03K3/03
CPC分类号： H03D7/14 , H03D7/00
摘要： A mixing device includes a mixing circuit and a ring oscillation circuit. The mixing circuit includes “M” mixers connected to the input terminal of the mixing device at one input. The ring oscillation circuit includes (2×M) inverters connected in series in a ring shape. The other input of the K-th mixer where “K” is a natural number of 1 to “M” balance-inputs an oscillation signal which is phase-shifted by (−Kπ/M) radian and outputted from the K-th inverter and an oscillation signal which is phase-shifted by (−(M+K)π/M) radian and outputted from the (M+K)th inverter. Between the output of the K-th mixer and the output terminal is provided a phase shifter having a phase shift amount of (−2π+Kπ/M) radian.
摘要翻译：混合装置包括混合电路和环形振荡电路。混合电路包括在一个输入端连接到混合装置的输入端的“M”个混频器。环形振荡电路包括以环形串联连接的（2xM）个反相器。第K个混合器的另一个输入“K”是自然数为1到“M”的平衡 - 输入相位偏移（-Kpi / M）弧度并从第K个反相器输出的振荡信号和（M + K）pi / M）相移并从（M + K）个逆变器输出的振荡信号。在第K个混频器的输出和输出端之间提供一个移相量为（-2pi + Kpi / M）弧度的移相器。

2. 发明授权

US07231192B2 High frequency receiver 失效
标题翻译：高频接收机
公开(公告)号：US07231192B2
公开(公告)日：2007-06-12
申请号：US10695825
申请日：2003-10-30
申请人： Masanori Suzuki , Koji Nakatsuji , Sanae Asayama , Atsuhito Terao , Kazutoshi Sato
发明人： Masanori Suzuki , Koji Nakatsuji , Sanae Asayama , Atsuhito Terao , Kazutoshi Sato
IPC分类号： H04B1/26 , H04B15/00
CPC分类号： H04B1/0057 , H03D7/18 , H04B1/005 , H04B1/006 , H04B1/28
摘要： A high frequency receiver of the present invention has a mixer of which one input part is connected to an output part of a filter and the other input part is connected to an output part of a frequency-variable local oscillator, and an output terminal connected to an output part of the mixer. The mixer is an image rejection mixer. The filter has a moderated damping characteristic in a frequency where the image rejection mixer reduces an image. Therefore, a high performance filter is not required, and hence a low price is realized.
摘要翻译：本发明的高频接收机具有混频器，其一个输入部分连接到滤波器的输出部分，另一个输入部分连接到可变频本地振荡器的输出部分，输出端子连接到混合器的输出部分。混频器是镜像抑制混频器。该滤波器在图像抑制混频器减小图像的频率中具有缓和阻尼特性。因此，不需要高性能过滤器，因此实现了低价格。

3. 发明授权

US06996388B2 High-frequency signal receiver 失效
标题翻译：高频信号接收机
公开(公告)号：US06996388B2
公开(公告)日：2006-02-07
申请号：US10109742
申请日：2002-03-28
申请人： Hiroaki Ozeki , Hitonobu Furukawa , Masanori Suzuki , Sanae Asayama , Masashi Yasuda
发明人： Hiroaki Ozeki , Hitonobu Furukawa , Masanori Suzuki , Sanae Asayama , Masashi Yasuda
IPC分类号： H04B1/26
CPC分类号： H04B1/28
摘要： A receiver is operable even if including a local oscillator generating a signal at high frequencies but not in a wide frequency range. The receiver includes: a first frequency converter for mixing a received signal with a first local oscillation signal to convert the received signal into respective signals of plural first intermediate frequencies corresponding to a frequency of the received signal; and a second frequency converter for converting the signals of the first intermediate frequencies into a signal of a second intermediate frequency.
摘要翻译：即使包括本地振荡器在高频而不是在宽的频率范围内产生信号，接收机也是可操作的。接收机包括：第一频率转换器，用于将接收信号与第一本地振荡信号混频，以将接收的信号转换成对应于接收信号的频率的多个第一中频的相应信号; 以及第二频率转换器，用于将第一中频的信号转换为第二中频信号。

4. 发明授权

US06944431B2 High-frequency signal transmission apparatus and electronic tuner using the same 失效
标题翻译：高频信号传输装置和使用其的电子调谐器
公开(公告)号：US06944431B2
公开(公告)日：2005-09-13
申请号：US10347080
申请日：2003-01-17
申请人： Masanori Suzuki , Atsuhito Terao , Sanae Asayama
发明人： Masanori Suzuki , Atsuhito Terao , Sanae Asayama
IPC分类号： H03D7/16 , H03H7/42 , H04B1/16 , H04B1/26 , H04N5/44 , H04B1/18
CPC分类号： H03D7/161
摘要： An electronic tuner has an input terminal, a mixer receiving the signal fed into the input terminal, a matching circuit connected to an output of the mixer, a band-pass filter connected to an output of this matching circuit, an intermediate-frequency (IF) amplifier connected to an output of the band-pass filter, and an output terminal receiving output of the IF amplifier. These circuits are composed of balanced circuits and connected by balanced lines. The mixer has a high output impedance. For the matching circuit, the impedance of the matching circuit at the band-pass filter side is equal to the impedance of the band-pass filter at the matching circuit side. This structure can realize an electronic tuner having low power consumption.
摘要翻译：电子调谐器具有输入端子，接收馈入输入端子的信号的混频器，连接到混频器的输出的匹配电路，连接到该匹配电路的输出的带通滤波器，中频（IF ）放大器连接到带通滤波器的输出，以及输出端接收IF放大器的输出。这些电路由平衡电路组成，并通过平衡线连接。混频器具有高输出阻抗。对于匹配电路，带通滤波器侧的匹配电路的阻抗等于匹配电路侧的带通滤波器的阻抗。该结构可以实现具有低功耗的电子调谐器。

5. 发明授权

US07480496B2 High-frequency receiver and portable device using the same 失效
标题翻译：高频接收机和便携式设备使用相同
公开(公告)号：US07480496B2
公开(公告)日：2009-01-20
申请号：US11203133
申请日：2005-08-15
申请人： Masaaki Noda , Atsuhito Terao , Sanae Asayama
发明人： Masaaki Noda , Atsuhito Terao , Sanae Asayama
IPC分类号： G06F3/033
CPC分类号： H03D7/18 , H03D7/14 , H04B1/109 , H04B1/28
摘要： A high-frequency receiver and a portable device using the same receiver are proposed for reducing power consumption. Image interference determiner (44) determines whether or not image interference exists at the present position in a desirable channel to be received, which channel is obtained by a receiving section (39) or a GPS receiver (43). Power supply control circuit (47) switches mixer (49) from an image rejection mixer to a double balance mixer when determiner (44) determines no image interference involves. This mechanism allows mixer (49) to work as the double balance mixer circuit during the reception of channels free from image interference, so that a mixer consuming less power is achievable. When mixer (49) works as the image rejection mixer circuit, image interference can be reduced.
摘要翻译：提出了一种高频接收机和使用相同接收机的便携式设备，用于降低功耗。图像干扰确定器（44）确定在要接收的期望信道中的当前位置是否存在图像干扰，哪个信道由接收部分（39）或GPS接收机（43）获得。当确定器（44）确定不涉及图像干扰时，电源控制电路（47）将混频器（49）从镜像抑制混频器切换到双重平衡混频器。这种机制允许混合器（49）在接收没有图像干扰的通道期间用作双重平衡混频器电路，使得可以实现消耗较少功率的混频器。当混频器（49）用作镜像抑制混频器电路时，可以降低图像干扰。

6. 发明授权

US07184733B2 High frequency receiving device, integrated circuit used for the same, and TV receiver using them 失效
标题翻译：高频接收设备，集成电路用于同一电视接收机，电视接收机使用它们
公开(公告)号：US07184733B2
公开(公告)日：2007-02-27
申请号：US10874810
申请日：2004-06-24
申请人： Sanae Asayama , Koji Nakatsuji , Atsuhito Terao , Yoshihide Tabata , Hideji Takami , Masanori Suzuki , Hirochika Kashima
发明人： Sanae Asayama , Koji Nakatsuji , Atsuhito Terao , Yoshihide Tabata , Hideji Takami , Masanori Suzuki , Hirochika Kashima
IPC分类号： H04B1/06
CPC分类号： H03J5/244 , H03J3/28 , H03J2200/36
摘要： An oscillation frequency changing means is inserted between a tuner and an oscillator of local oscillator (56) of a high frequency receiving device, and the oscillation frequency changing means, in each frequency band received, changes the oscillation frequency characteristic of local oscillator (56) in relation to the tuning voltage supplied from PLL circuit (78), and operates in accordance with the frequency characteristic of tuning filter (52, 54, 62, 64) to obtain an oscillation signal varied just by a predetermined frequency, thereby making it possible to receive broadband channels of continuous VHF broadcast band and UHF broadcast band.
摘要翻译：在调谐器和高频接收装置的本地振荡器（56）的振荡器之间插入振荡频率改变装置，并且在接收到的每个频带中的振荡频率改变装置改变本地振荡器（56）的振荡频率特性，关于从PLL电路（78）提供的调谐电压，并根据调谐滤波器（52,54,62,64）的频率特性进行操作，以获得刚好按预定频率变化的振荡信号，从而使其成为可能接收连续VHF广播频段和UHF广播频段的宽带频道。

7. 发明申请

US20050032492A1 High frequency receiving device, integrated circuit used for same, and TV receiver using them 失效
标题翻译：高频接收装置，与其相同的集成电路，以及使用它们的电视接收机
公开(公告)号：US20050032492A1
公开(公告)日：2005-02-10
申请号：US10874810
申请日：2004-06-24
申请人： Sanae Asayama , Koji Nakatsuji , Atsuhito Terao , Yoshihide Tabata , Hideji Takami , Masanori Suzuki , Hirochika Kashima
发明人： Sanae Asayama , Koji Nakatsuji , Atsuhito Terao , Yoshihide Tabata , Hideji Takami , Masanori Suzuki , Hirochika Kashima
IPC分类号： H03J3/20 , H03J3/28 , H03J5/00 , H03J5/24 , H04B1/06 , H04B1/16 , H04B1/18 , H04B1/40 , H04B7/00 , H04N5/44
CPC分类号： H03J5/244 , H03J3/28 , H03J2200/36
摘要： An oscillation frequency changing means is inserted between a tuner and an oscillator of local oscillator (56) of a high frequency receiving device, and the oscillation frequency changing means, in each frequency band received, changes the oscillation frequency characteristic of local oscillator (56) in relation to the tuning voltage supplied from PLL circuit (78), and operates in accordance with the frequency characteristic of tuning filter (52, 54, 62, 64) to obtain an oscillation signal varied just by a predetermined frequency, thereby making it possible to receive broadband channels of continuous VHF broadcast band and UHF broadcast band.
摘要翻译：在调谐器和高频接收装置的本地振荡器（56）的振荡器之间插入振荡频率改变装置，并且在接收到的每个频带中的振荡频率改变装置改变本地振荡器（56）的振荡频率特性，关于从PLL电路（78）提供的调谐电压，并根据调谐滤波器（52,54,62,64）的频率特性进行操作，以获得刚好按预定频率变化的振荡信号，从而使其成为可能接收连续VHF广播频段和UHF广播频段的宽带频道。

8. 发明授权

US07085547B2 Mixer circuit and high frequency signal receiver using the same 失效
标题翻译：混频器电路和高频信号接收机使用相同
公开(公告)号：US07085547B2
公开(公告)日：2006-08-01
申请号：US10721670
申请日：2003-11-25
申请人： Sanae Asayama , Atsuhito Terao
发明人： Sanae Asayama , Atsuhito Terao
IPC分类号： H04B1/10
CPC分类号： H03D7/165 , H03D7/18
摘要： A mixer circuit can suppress image interfering signals and interfering signals related to higher harmonic component of an oscillator. Using the mixer circuit, it is possible to provide a high-frequency signal receiver which maintains good signal receiving condition. This mixer circuit comprises a plurality of mixers, oscillators, a plurality of oscillator phase shifters which serve to phase-shift the output of the oscillators and supply the output to the mixers, and a plurality of intermediate frequency phase shifters which serve to phase-shift the output of the mixers. The high-frequency signal receiver comprises at least a pre-filter and the mixer circuit.
摘要翻译：混频器电路可以抑制与振荡器的高次谐波分量相关的图像干扰信号和干扰信号。使用混频器电路，可以提供保持良好信号接收状态的高频信号接收机。该混频器电路包括多个混频器，振荡器，多个振荡器移相器，用于相位移动振荡器的输出并将输出提供给混频器;以及多个中频移相器，用于相移混音器的输出。高频信号接收机至少包括预滤波器和混频器电路。

9. 发明申请

US20050079839A1 Radio-frequency receiver and integrated circuit for use in receiver 失效
标题翻译：射频接收机和用于接收机的集成电路
公开(公告)号：US20050079839A1
公开(公告)日：2005-04-14
申请号：US10962850
申请日：2004-10-12
申请人： Sanae Asayama , Koji Nakatsuji , Masanori Suzuki , Atsuhito Terao
发明人： Sanae Asayama , Koji Nakatsuji , Masanori Suzuki , Atsuhito Terao
IPC分类号： H03B27/00 , H03D7/16 , H03D7/18 , H03J3/08 , H03J5/24 , H04B1/26 , H04B1/28 , H04B1/40 , H04N5/44 , H04N5/46 , H04B1/18 , H04B1/10 , H04M1/00
CPC分类号： H04B1/406 , H03J3/08 , H03J5/244 , H04B1/28
摘要： A radio-frequency (RF) receiver includes an input terminal for receiving RF signals in a first frequency band and a second frequency band lower than the first frequency band, a first tuned filter allowing a signal of a passing frequency in the RF signal in the first frequency band to pass through the filter, a local oscillator, a frequency divider for frequency-dividing a signal output from the local oscillator, a first mixer operable to convert the signal output from the first tuned filter into a signal of an intermediate frequency, a second tuned filter allowing a signal of a passing frequency of the RF signal in the second frequency band to pass through the filter, a second mixer operable to convert the signal output from the second tuned filter into a signal of the intermediate frequency, and a phase-locked-loop (PLL) circuit operable to control an oscillation frequency of the local oscillator and the passing frequencies of the first tuned filter and the second tuned filter.
摘要翻译：射频（RF）接收机包括用于接收第一频带中的RF信号的输入端和低于第一频带的第二频带的第一调谐滤波器，其允许RF信号中的通过频率的信号第一频带通过滤波器，本地振荡器，用于对从本地振荡器输出的信号进行分频的分频器，可操作以将从第一调谐滤波器输出的信号转换为中频信号的第一混频器，允许第二频带中的RF信号的通过频率的信号通过滤波器的第二调谐滤波器，可操作以将从第二调谐滤波器输出的信号转换成中频信号的第二混频器，以及锁相环（PLL）电路，其可操作以控制本地振荡器的振荡频率和第一调谐滤波器和第二调谐滤波器的通过频率。

10. 发明授权

US07418247B2 Radio-frequency receiver 失效
标题翻译：射频接收机
公开(公告)号：US07418247B2
公开(公告)日：2008-08-26
申请号：US11626904
申请日：2007-01-25
申请人： Sanae Asayama , Koji Nakatsuji , Masanori Suzuki , Atsuhito Terao
发明人： Sanae Asayama , Koji Nakatsuji , Masanori Suzuki , Atsuhito Terao
IPC分类号： H04B7/00 , H04B1/18
CPC分类号： H04B1/406 , H03J3/08 , H03J5/244 , H04B1/28
摘要： A radio-frequency (RF) receiver includes an input terminal for receiving RF signals in a first frequency band and a second frequency band lower than the first frequency band, a first tuned filter allowing a signal of a passing frequency in the RF signal in the first frequency band to pass through the filter, a local oscillator, a frequency divider for frequency-dividing a signal output from the local oscillator, a first mixer operable to convert the signal output from the first tuned filter into a signal of an intermediate frequency, a second tuned filter allowing a signal of a passing frequency of the RF signal in the second frequency band to pass through the filter, a second mixer operable to convert the signal output from the second tuned filter into a signal of the intermediate frequency, and a phase-locked-loop (PLL) circuit operable to control an oscillation frequency of the local oscillator and the passing frequencies of the first tuned filter and the second tuned filter.
摘要翻译：射频（RF）接收机包括用于接收第一频带中的RF信号的输入端和低于第一频带的第二频带的第一调谐滤波器，其允许RF信号中的通过频率的信号第一频带通过滤波器，本地振荡器，用于对从本地振荡器输出的信号进行分频的分频器，可操作以将从第一调谐滤波器输出的信号转换为中频信号的第一混频器，允许第二频带中的RF信号的通过频率的信号通过滤波器的第二调谐滤波器，可操作以将从第二调谐滤波器输出的信号转换成中频信号的第二混频器，以及锁相环（PLL）电路，其可操作以控制本地振荡器的振荡频率和第一调谐滤波器和第二调谐滤波器的通过频率。

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