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1. 发明授权

US07893774B2 VCO driving circuit and frequency synthesizer 有权
标题翻译： VCO驱动电路和频率合成器
公开(公告)号：US07893774B2
公开(公告)日：2011-02-22
申请号：US12826236
申请日：2010-06-29
申请人： Yasuo Kitayama , Hiroki Kimura , Naoki Onishi , Nobuo Tsukamoto
发明人： Yasuo Kitayama , Hiroki Kimura , Naoki Onishi , Nobuo Tsukamoto
IPC分类号： H03L7/085 , H03L1/02
CPC分类号： H03L7/093 , H03L1/026 , H03L7/107 , H03L7/1075 , H03L7/18 , H03L7/189
摘要： A VCO driving circuit and a frequency synthesizer wherein the impedance viewed from a VCO control terminal is reduced to prevent the VCO phase noise characteristic from degrading. A VCO driving circuit and a frequency synthesizer having the VCO driving circuit, which comprises a coarse adjustment DAC that receives a digital data, which has a coarse adjustment frequency, to output an analog signal; a fine adjustment DAC that receives a digital data, which has a fine adjustment frequency, to output an analog signal; a low response speed LPF5 that removes noise from the output signal from the coarse adjustment DAC and then provides the resultant signal as an input to a VCO control terminal; a high response speed LPF7 that converts the output signal from the fine adjustment DAC to a voltage, thereby smoothing the signal; a resistor that connects an input stage of the LPF5 to that of the LPF7; and a capacitor used for providing a capacitive coupling such that the output of the LPF7 is added to that of the LPF5.
摘要翻译： VCO驱动电路和频率合成器，其中从VCO控制端子观察的阻抗减小，以防止VCO相位噪声特性降级。 VCO驱动电路和具有VCO驱动电路的频率合成器，其包括具有粗略调整频率的接收数字数据的粗调DAC以输出模拟信号; 微调DAC，其接收具有微调频率的数字数据，以输出模拟信号; 低响应速度LPF5，其从粗调DAC输出信号中去除噪声，然后将所得到的信号作为输入提供给VCO控制端; 高响应速度LPF7，其将来自微调DAC的输出信号转换为电压，从而平滑信号; 将LPF5的输入级与LPF7的输入级连接的电阻; 以及用于提供电容耦合的电容器，使得LPF7的输出被添加到LPF5的输出。

2. 发明授权

US07888974B2 Frequency synthesizer 有权
标题翻译：频率合成器
公开(公告)号：US07888974B2
公开(公告)日：2011-02-15
申请号：US12803294
申请日：2010-06-23
申请人： Tsukasa Kobata , Tsuyoshi Shiobara , Kazuo Akaike , Nobuo Tsukamoto
发明人： Tsukasa Kobata , Tsuyoshi Shiobara , Kazuo Akaike , Nobuo Tsukamoto
IPC分类号： H03L7/085 , H03L7/08
CPC分类号： H03L7/18 , H03L7/085 , H03L7/091 , H03L7/10 , H03L7/185 , H03L7/187 , H03L2207/06 , H03L2207/12
摘要： An object of the present invention provides a frequency synthesizer having a broad frequency entraining range which can finely set a frequency over a broad band by a novel principle.As a specific solving means, a sinusoidal signal of an output frequency of a voltage-controlled oscillator is subjected to orthogonal detection, a vector rotating at the differential frequency (speed) between the output frequency and the frequency of the frequency signal used for the detection is created, and the frequency of a vector when the output frequency of the voltage-controlled oscillator is equal to a set value is calculated in advance. The voltage signal corresponding to the difference between the frequency of the vector and the calculated frequency is fed back to the voltage-controlled oscillator when the voltage-controlled oscillator is driven, and PLL is formed so that the difference is equal to zero. Accordingly, the output frequency of the voltage-controlled oscillator is adjusted to the set frequency when PLL is locked. After the difference between both the frequencies is increased after PLL is locked, the set value is integrated by the integrating circuit portion and added to the control voltage.
摘要翻译：本发明的一个目的是提供一种频率合成器，其具有宽的频率夹带范围，可通过新颖的原理在宽带上精细地设定频率。作为具体的解决方案，对压控振荡器的输出频率的正弦信号进行正交检测，以用于检测的频率信号的输出频率和频率之间的差分频率（速度）旋转的矢量并且预先计算当压控振荡器的输出频率等于设定值时的矢量频率。当驱动压控振荡器时，与矢量频率和计算出的频率之间的差值相对应的电压信号被反馈到压控振荡器，并且形成PLL，使得差值等于零。因此，当PLL被锁定时，压控振荡器的输出频率被调整到设定频率。在PLL被锁定之后两个频率之间的差异增加之后，设定值被积分电路部分积分并加到控制电压上。

3. 发明授权

US07603100B2 High-frequency radio apparatus 失效
标题翻译：高频无线电设备
公开(公告)号：US07603100B2
公开(公告)日：2009-10-13
申请号：US11230756
申请日：2005-09-19
申请人： Kazuo Akaike , Makoto Okamoto , Tsutomu Yamakawa , Minoru Fukuda , Kozo Ono , Nobuo Tsukamoto
发明人： Kazuo Akaike , Makoto Okamoto , Tsutomu Yamakawa , Minoru Fukuda , Kozo Ono , Nobuo Tsukamoto
IPC分类号： H04B1/16
CPC分类号： H04B1/30
摘要： A high-frequency wireless communication device is provided that is capable of enlarging the range of communication by enhancing reception sensitivity while avoiding mutual interference. The device comprises an antenna filter and a direct detection type reception mechanism connected to the antenna filter. A crystal filter is used as the antenna filter. A crystal chip constituting the crystal filter and an IC chip into which the reception mechanism is integrated are housed in a single modular container to configure a high-frequency wireless module.
摘要翻译：提供一种高频无线通信装置，其能够通过在避免相互干扰的同时提高接收灵敏度来扩大通信范围。该装置包括天线滤波器和连接到天线滤波器的直接检测型接收机构。使用晶体滤波器作为天线滤波器。构成晶体滤波器的晶体芯片和集成有接收机构的IC芯片被容纳在单个模块化容器中，以配置高频无线模块。

4. 发明申请

US20080036573A1 Cdma-Rfid 审中-公开
公开(公告)号：US20080036573A1
公开(公告)日：2008-02-14
申请号：US10589933
申请日：2004-02-19
申请人： Nobuo Tsukamoto , Hideyuki Nebiya , Yukihisa Inoue
发明人： Nobuo Tsukamoto , Hideyuki Nebiya , Yukihisa Inoue
IPC分类号： H04Q5/22
CPC分类号： H04B1/707 , G06K7/0008 , G06K7/10019 , H04B5/0056 , H04B5/0062 , H04B5/02 , H04J13/00
摘要： If a total number of specific RF tags is too large, many RF tags respond at a time. Therefore a problem occurs that an interrogator cannot receive information from the RF tags. A first invention relates to an RF tag. The RF tag includes an interrogator signal receiving section for receiving an interrogator signal from an interrogator, a synchronizing signal generating section for generating a synchronizing signal from the received interrogator signal, a response information obtaining section for obtaining response information according to the interrogator signal, a spread-code modulating section for modulating the response information with a spreading code and obtaining the spread-code modulated response information, and a transmitting section for transmitting the response signal that contains the spread-code modulated response information in a data area at a random transmission interval in synchronism with the synchronizing signal.
摘要翻译：如果特定RF标签的总数太大，则许多RF标签一次响应。因此，询问器不能从RF标签接收信息。第一发明涉及RF标签。 RF标签包括用于从询问器接收询问器信号的询问器信号接收部分，用于从接收到的询问器信号产生同步信号的同步信号产生部分，用于根据询问器信号获得响应信息的响应信息获取部分，扩展码调制部分，用于利用扩展码调制响应信息并获得扩展码调制的响应信息;以及发送部分，用于以随机发送方式在数据区域中发送包含扩展码调制的响应信息的响应信号间隔与同步信号同步。

5. 发明申请

US20070120355A1 Instruction manual of electronic device 审中-公开
标题翻译：电子设备使用说明书
公开(公告)号：US20070120355A1
公开(公告)日：2007-05-31
申请号：US11602964
申请日：2006-11-22
申请人： Nobuo Tsukamoto
发明人： Nobuo Tsukamoto
IPC分类号： B42D1/00
CPC分类号： B42D3/12 , B42F5/02
摘要： The invention provides an instruction manual capable of storing documents such as guarantee certificates easily thereto. An instruction manual 1 of an electronic device having its rear portion 2 bound in a spreadable manner has a back cover 3 disposed on the outer side of the instruction manual and a paper portion 4 overlapped therewith which are bound together at their upper edges 5, lower edges 6 and side edges 9, thereby forming a document storage portion 7 between the back cover 3 and the paper portion 4. The back cover 3 has a document insertion slot 12. Thus, documents such as a guarantee certificate 11 can easily be stored in the document storage portion 7 through document insertion slots 12 without having to open the instruction manual 1.
摘要翻译：本发明提供了能够容易地存储诸如保证证书等文件的指令手册。电子设备的使用说明书1，其后部2以可展开的方式结合，具有设置在说明书外侧的后盖3和与其重叠的纸部分4，它们在其上边缘5，下部边缘6和侧边缘9，从而在后盖3和纸部分4之间形成文件存储部分7.后盖3具有文件插入口12.因此，诸如担保证书11之类的文件可以容易地存储在文档存储部分7通过文件插入槽12而不必打开说明书1。

6. 发明授权

US07016298B2 Signal transmission/reception system of orthogonal frequency division multiplexing 失效
标题翻译：正交频分复用的信号发射/接收系统
公开(公告)号：US07016298B2
公开(公告)日：2006-03-21
申请号：US09884026
申请日：2001-06-20
申请人： Toshiyuki Akiyama , Nobuo Tsukamoto , Tetsuomi Ikeda , Satoshi Okabe
发明人： Toshiyuki Akiyama , Nobuo Tsukamoto , Tetsuomi Ikeda , Satoshi Okabe
IPC分类号： H04J11/00
CPC分类号： H04L5/0048 , H04L25/0226 , H04L25/0232 , H04L27/0008 , H04L27/2071 , H04L27/2602 , H04L27/2627 , H04L27/3455
摘要： A transmission apparatus of orthogonal frequency division multiplexing for multiplexing a plurality of carriers orthogonal to one another to transmit a modulated signal. The transmission apparatus includes a first modulator for outputting a code modulated in accordance a modulation scheme which can be applied with a synchronous detection for demodulation, a second modulator for outputting a code modulated in accordance with a modulation scheme different from the modulation scheme associated with the first modulator, and a distributing circuit for distributing the codes modulated by the first and second modulators to a plurality of carriers. The distributing circuit distributes the code modulated by the second modulator to all or some of carriers existing within a predetermined number of columns from at least one of both end regions of a signal transmission frequency band, and the code modulated by the first modulator to the remaining carriers.
摘要翻译：一种正交频分复用的发送装置，用于将彼此正交的多个载波复用以发送调制信号。发送装置包括：第一调制器，用于输出根据可以应用于解调的同步检测的调制方式调制的码;第二调制器，用于输出根据与调制方案不同的调制方案调制的码; 第一调制器和用于将由第一和第二调制器调制的代码分配给多个载波的分配电路。分配电路将由第二调制器调制的代码分配给来自信号传输频带的两个端部区域中的至少一个的预定数量的列中存在的所有或一些载波，并且将由第一调制器调制的代码分配给剩余的承运人

7. 发明授权

US06473466B1 Data transmitting method and data transmitting apparatus accompanied with a plurality of transmitting of receiving antennas 失效
标题翻译：伴随着多个接收天线的发送的数据发送方法和数据发送装置
公开(公告)号：US06473466B1
公开(公告)日：2002-10-29
申请号：US09206406
申请日：1998-12-07
申请人： Atsushi Miyashita , Seiichi Sano , Toshiyuki Akiyama , Nobuo Tsukamoto , Tatuhiro Nakada
发明人： Atsushi Miyashita , Seiichi Sano , Toshiyuki Akiyama , Nobuo Tsukamoto , Tatuhiro Nakada
IPC分类号： H04B720
CPC分类号： H04B7/0608 , H04L1/0001 , H04L2025/03694
摘要： A data transmitting apparatus in which in an antenna switching of the data transmitting apparatus, a sudden change of transmission path characteristics is prevented and a state where an automatic equalizing function on the reception side can follow can be held. The apparatus has a processing circuit for gradually switching antennas of the data transmitting apparatus with respect to the time and for continuously switching one antenna from the rated level to the 0 level and for continuously switching the other antenna from the 0 level to the rated level. The apparatus operates so as to always keep the optimum constellation state in which the automatic equalizing process follows.
摘要翻译：一种数据发送装置，其中在数据发送装置的天线切换中防止传输路径特性的突然变化，并且可以保持接收侧的自动均衡功能能够跟随的状态。该装置具有处理电路，用于相对于时间逐渐切换数据发送装置的天线，并且将一个天线从额定电平连续地切换到0电平，并且将另一个天线从0电平连续地切换到额定电平。该装置操作以便始终保持自动均衡处理遵循的最佳星座状态。

8. 发明授权

US06381236B1 Bi-directional digital transmission system and bi-directional digital transmission method 失效
标题翻译：双向数字传输系统和双向数字传输方式
公开(公告)号：US06381236B1
公开(公告)日：2002-04-30
申请号：US09236602
申请日：1999-01-26
申请人： Atsushi Miyashita , Toshiyuki Akiyama , Nobuo Tsukamoto
发明人： Atsushi Miyashita , Toshiyuki Akiyama , Nobuo Tsukamoto
IPC分类号： H04J100
CPC分类号： H04L5/1484 , H04L5/023
摘要： A bi-directional digital transmission method, and system, for sending and receiving digital transmission signals having a frame configuration modulated by an orthogonal frequency division multiplex modulation scheme. A first sending unit in a first transmission station converts first continuous data to a up-direction intermittent transmission signal, and sends it from a first antenna via a first switchover unit. The up-direction intermittent transmission signal is received by a second antenna of a second transmission station, and supplied to a second receiving unit of the second transmission station via a second switchover unit of the second transmission station. The second receiving unit determines whether receiving operation of the up-direction intermittent transmission signal has been established, and if so, restores the original first continuous data. A second sending unit in the second transmission station converts second continuous data to a down-direction intermittent transmission signal, and sends it from a second antenna via a second switchover unit. In the first transmission station, the down-direction intermittent sending transmission signal is received by the first antenna, and supplied to a first receiving unit via the first switchover unit to restore the original second continuous data.
摘要翻译：一种用于发送和接收具有由正交频分复用调制方案调制的帧配置的数字传输信号的双向数字传输方法和系统。第一发送站中的第一发送单元将第一连续数据转换为上行间歇发送信号，并经由第一切换单元从第一天线发送。上行间歇发送信号由第二发送站的第二天线接收，经由第二发送站的第二切换单元提供给第二发送站的第二接收单元。第二接收单元确定上行间歇发送信号的接收操作是否已经建立，如果是，则恢复原始的第一连续数据。第二发送站中的第二发送单元将第二连续数据转换为下行间歇发送信号，经由第二切换单元从第二天线发送。在第一发送站中，向下方向间歇发送发送信号由第一天线接收，经由第一切换单元提供给第一接收单元，恢复原来的第二连续数据。

9. 发明授权

US5420845A Methods of varying optical properties, optical devices, information recording media and information recording methods and apparatuses 失效
标题翻译：改变光学特性的方法，光学装置，信息记录介质和信息记录方法和装置
公开(公告)号：US5420845A
公开(公告)日：1995-05-30
申请号：US900497
申请日：1992-06-18
申请人： Yoshihito Maeda , Isao Ikuta , Masaichi Nagai , Yoshimi Kato , Hisashi Andoh , Nobuo Tsukamoto
发明人： Yoshihito Maeda , Isao Ikuta , Masaichi Nagai , Yoshimi Kato , Hisashi Andoh , Nobuo Tsukamoto
IPC分类号： G11B7/0055 , G11B7/24
CPC分类号： G11B7/00557 , Y10S430/146
摘要： High density optical information recording even at room temperature is achieved by control of the diameter of crystalline portions exhibiting quantum size effects of fine semiconductor particles distributed in a dielectric matrix, using the non-crystalline to crystalline phase transition of the fine particles. The quantum size effects mean that the optical properties of the medium depend on the diameter of the crystalline portions. Various methods of recording, reproducing and erasing information using this optical recording medium are possible. The invention is applicable to other optical devices.
摘要翻译：通过使用微细颗粒的非晶态至晶相转变，通过控制显示分散在电介质基质中的精细半导体颗粒的量子尺寸效应的结晶部分的直径来实现甚至在室温下的高密度光学信息记录。量子尺寸效应意味着介质的光学性质取决于晶体部分的直径。可以使用这种光记录介质记录，再现和擦除信息的各种方法。本发明适用于其他光学装置。

10. 发明授权

US5079513A Demodulator and radio receiver having such a demodulator 失效
标题翻译：具有这样一个解调器的DEMODULATOR和RADIO接收器
公开(公告)号：US5079513A
公开(公告)日：1992-01-07
申请号：US612982
申请日：1990-11-15
申请人： Hiroshi Noguchi , Nobuo Tsukamoto , Arata Nakagoshi , Atushi Hoshi , Masato Horaguchi
发明人： Hiroshi Noguchi , Nobuo Tsukamoto , Arata Nakagoshi , Atushi Hoshi , Masato Horaguchi
IPC分类号： H04L27/22 , H03D3/00 , H04L27/14 , H04L27/152 , H04L27/233
CPC分类号： H04L27/2332 , H03D3/008 , H04L27/1525 , H03D2200/0025 , H03D2200/0035 , H03D2200/005 , H03D3/006
摘要： The invention relates to a demodulator and to a radio receiver having such a demodulator and, more particularly, to a demodulator for demodulating signals which were digitized by a direct detecting method in which a circuit scale is small and an electric power consumption is small. Particularly, it is a characteristic that a limiter in the demodulator comprises: a circuit for obtaining absolute values of the digital signals (I signal, Q signal) which are produced from an angle modulated wave and whose phases are mutually orthogonal; a circuit for outputting the sum (.vertline.I.vertline.+.vertline.Q.vertline.) of the absolute values or the larger one M(.vertline.I.vertline., .vertline.Q.vertline.) of the absolute values; a controller for producing a control signal according to an output of the above circuit; and scalers which change the amplitudes of the first and second digital signals in accordance with the control signal and which are constructed by a plurality of shift registers and adders.

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