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公开(公告)号：JP2007295147A
公开(公告)日：2007-11-08
申请号：JP2006118746
申请日：2006-04-24
Applicant: Niigata Seimitsu Kk , Ricoh Co Ltd , 新潟精密株式会社 , 株式会社リコー
Inventor： ISHIGURO KAZUHISA
CPC classification number: H03G3/3068
Abstract: PROBLEM TO BE SOLVED: To execute RF-AGC processing based on DSP with less power consumption without using a special AD converter adaptable to high-frequency input.
SOLUTION: A control circuit is provided with an A/D conversion circuit 10 for converting a wide-band intermediate frequency signal to be output from a frequency conversion circuit 5 into a digital signal; and a DSP 11 for generating control data for controlling the gains of an antenna damping circuit 3 and an LNA 4, on the basis of the level of a wide-band digital intermediate frequency to be outputted from the A/D conversion circuit 10 and outputting the generated data. The control circuit applies A/D conversion to the wide-band intermediate frequency signal to be output from the frequency conversion circuit 5, and supplies it to the DSP 11. In this way, the frequency of an input signal to the A/D conversion circuit 10 can be reduced, and thus, the necessity of using a special AD converter adaptable to a high-frequency input can be eliminated, and the power consumption can also be reduced.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：在不使用适合于高频输入的特殊AD转换器的情况下，以较少的功耗执行基于DSP的RF-AGC处理。 解决方案：控制电路设置有用于将要从频率转换电路5输出的宽带中频信号转换为数字信号的A / D转换电路10; 以及DSP11，用于根据要从A / D转换电路10输出的宽带数字中频的电平产生用于控制天线阻尼电路3和LNA 4的增益的控制数据，并输出 生成的数据。 控制电路将A / D转换应用于从频率转换电路5输出的宽带中频信号，并将其提供给DSP 11.这样，A / D转换的输入信号的频率 可以减少电路10，从而可以消除适用于高频输入的专用AD转换器的必要性，并且还可以降低功耗。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2007116568A
公开(公告)日：2007-05-10
申请号：JP2005308015
申请日：2005-10-24
Applicant: Niigata Seimitsu Kk , 新潟精密株式会社
Inventor： ISHIGURO KAZUHISA , TAKAHASHI YOSHIAKI
CPC classification number: H03F3/45183 , H03F2203/45364
Abstract: PROBLEM TO BE SOLVED: To provide a differential amplifier that can be used even in a high frequency region, improve an output offset current and signal distortion, and reduce the consumed current.
SOLUTION: A differential amplifier circuit of an input stage is configured with a twin differential form comprising first and second differential amplifier circuits 11, 12, and first and second common source amplifiers M5, M10 extract respective differential outputs. A current mirror circuit comprising transistors M11, M12 is connected to the second common source amplifier M10 and a drain current of the second common source amplifier M10 drives the transistor M12. Thus, the connections above are contrived such that an upper half dynamic range of an AC signal output from an output terminal OUT depends on a current supply capability of the first common source amplifier M5 and the lower half dynamic range depends on a current supply capability of the second common source amplifier M10 thereby eliminating the need for provision of a constant current circuit processing a high current for the purpose of producing the lower half signal with improved waveform distortion.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：为了提供甚至可以在高频区域使用的差分放大器，改善输出偏移电流和信号失真，并且减少消耗的电流。
解决方案：输入级的差分放大器电路配置有双差分形式，包括第一和第二差分放大器电路11,12，以及第一和第二公共源极放大器M5，M10提取相应的差分输出。 包括晶体管M11，M12的电流镜电路连接到第二公共源极放大器M10，第二公共源极放大器M10的漏极电流驱动晶体管M12。 因此，上述连接被设计成使得从输出端子OUT输出的AC信号的上半部动态范围取决于第一公共源放大器M5的电流供应能力，而下半部分动态范围取决于电流供应能力 第二公共源极放大器M10，从而不需要提供处理高电流的恒流电路，以产生具有改进的波形失真的下半部分信号。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2007005477A
公开(公告)日：2007-01-11
申请号：JP2005182300
申请日：2005-06-22
Applicant: Niigata Seimitsu Kk , Toyota Industries Corp , 新潟精密株式会社 , 株式会社豊田自動織機
Inventor： FUJIMAKI ISAO , MIYAGI HIROSHI
Abstract: PROBLEM TO BE SOLVED: To provide a utilizing method of underfill which raises device performance by using underfill at least one or more kinds of material characteristics.
SOLUTION: In the application method of the underfill: the underfill material is filled in between different substrates, the relative permittivity or the relative magnetic permeability of the underfill material is adjusted, and the gain of frequency band of the noise generated in a joining terminal and a metal conductive pattern of the above board is attenuated.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：提供一种底部填充的利用方法，其通过使用至少一种或多种材料特性的底部填充来提高装置性能。 解决方案：在底部填充剂的应用方法中，将底部填充材料填充在不同的基板之间，调整底部填充材料的相对介电常数或相对磁导率，并且生成的噪声的频带的增益 接合端子和上述板的金属导电图案被衰减。 版权所有（C）2007，JPO＆INPIT
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Patent Agency Ranking26.发明专利Semiconductor device for radio and method of power supply for circuit block thereof 审中-公开无线电半导体器件及其电路块供电方法
公开(公告)号：JP2006156684A
公开(公告)日：2006-06-15
申请号：JP2004344744
申请日：2004-11-29
Applicant: Niigata Seimitsu Kk , Toyota Industries Corp , 新潟精密株式会社 , 株式会社豊田自動織機
Inventor： AOYAMA TAKASHI , MIYAGI HIROSHI
IPC: H01L21/82 , H01L21/822 , H01L27/04 , H03K19/00
Abstract: PROBLEM TO BE SOLVED: To reduce the noise of an analog circuit for a semiconductor device for radio.
SOLUTION: A power supply voltage is supplied from a power supply for analog, not shown in a diagram, to a part of no-noise amplifier 12 and a circuit of one part of a stereo demodulation circuit 16 shown in white in the diagram. The supply voltage is supplied from a power supply for digital different from the power supply for analog, to a digital circuit 19, the MPXPLL 17 of the stereo demodulation circuit 16 and a pilot signal detecting circuit 18. According to this method, the propagation of noise, generated in the digital circuit among stereo demodulation circuits, to the analog circuit can be prevented.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：为了减少用于无线电的半导体器件的模拟电路的噪声。 解决方案：将电源电压从图中未示出的模拟电源提供给无噪声放大器12的一部分，立体声解调电路16的一部分的电路以 图。 电源电压是从与模拟电源不同的数字电源供给数字电路19，立体声解调电路16的MPXPLL 17和导频信号检测电路18.根据该方法， 可以防止在立体声解调电路中的数字电路中产生的噪声到模拟电路。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006080620A
公开(公告)日：2006-03-23
申请号：JP2004259594
申请日：2004-09-07
Applicant: Niigata Seimitsu Kk , 新潟精密株式会社
Inventor： MIYAGI HIROSHI
CPC classification number: H04B1/18 , H03J2200/10
Abstract: PROBLEM TO BE SOLVED: To provide a VHF band receiver capable of being easily downsized wherein a degree of antenna installation freedom is high.
SOLUTION: The FM receiver 100 is provided with: a tuning circuit for selectively passing a tuning frequency and its neighboring frequencies among a received broadcast wave; a local oscillation circuit 13 for generating a local oscillation signal; and a mixer circuit 12 for applying frequency-mixing between the local oscillation signal generated from the local oscillation circuit 13 and a high frequency signal obtained by the tuning operation of the tuning circuit. The tuning circuit comprises an antenna coil 1 wound on a magnetic core and a varactor circuit 2 for configuring a resonance circuit together with the antenna coil 1 and a tuning frequency at VHF bands is set to the tuning circuit.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供能够容易地小型化的VHF频带接收机，其中天线安装自由度高。 解决方案：FM接收机100设置有：用于选择性地将调谐频率及其相邻频率传送到接收的广播波中的调谐电路; 用于产生本地振荡信号的本地振荡电路13; 以及用于在从本地振荡电路13产生的本地振荡信号和通过调谐电路的调谐操作获得的高频信号之间施加混频的混频器电路12。 调谐电路包括缠绕在磁芯上的天线线圈1和用于与天线线圈1一起配置谐振电路的变容二极管电路2，并且将调谐频率设置在调谐电路。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006013755A
公开(公告)日：2006-01-12
申请号：JP2004186047
申请日：2004-06-24
Applicant: Niigata Seimitsu Kk , Toyota Industries Corp , 新潟精密株式会社 , 株式会社豊田自動織機
Inventor： AOYAMA TAKASHI , MIYAGI HIROSHI
IPC: H04B1/10
Abstract: PROBLEM TO BE SOLVED: To provide a stereo noise control circuit for suppressing variations in a DC output voltage.
SOLUTION: When 38 kHz signals 138P, 138N are inputted to gates of MOS transistors Q1, Q2, both source voltages in terms of AC differ depending on levels of the 38 kHz signals 138P, 138N. As a result, a current flows to resistors R1 to R5 at source sides of the MOS transistors Q1, Q2 in response to a voltage difference between both the source voltages and the resistance value depending on a state of switch elements SW1 to SW5. Thus, an amplitude of an output signal can be changed by turning ON/OFF the switch elements SW1 to SW5. Then the amplitude of the output signal can be adjusted without changing a DC output voltage of the stereo noise control circuit.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供一种用于抑制DC输出电压变化的立体声噪声控制电路。 解决方案：当38kHz信号138P，138N被输入到MOS晶体管Q1，Q2的栅极时，AC上的两个源电压根据38kHz信号138P，138N的电平而不同。 结果，根据开关元件SW1至SW5的状态，电流响应于源极电压和电阻值之间的电压差而流向MOS晶体管Q1，Q2的源极侧的电阻器R1至R5。 因此，可以通过接通/断开开关元件SW1至SW5来改变输出信号的幅度。 然后可以调节输出信号的幅度，而不改变立体声噪声控制电路的直流输出电压。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2005286821A
公开(公告)日：2005-10-13
申请号：JP2004099713
申请日：2004-03-30
Applicant: Niigata Seimitsu Kk , Toyota Industries Corp , 新潟精密株式会社 , 株式会社豊田自動織機
Inventor： AOYAMA TAKASHI , MIYAGI HIROSHI
IPC: H03D3/00
Abstract: PROBLEM TO BE SOLVED: To provide a pulse count detection circuit capable of extracting a sound signal without being influenced by variation of elements such as resistors, capacitors generated when manufactured, and variations in a supply voltage.
SOLUTION: The pulse count detection circuit is composed of a delay circuit equipped at least with a voltage current conversion circuit 1, current mirror circuits 2-4, a reference pulse forming circuit 5 composed of a comparator 9 connected to a reference voltage, a capacitor C3, a switch SW3, and a controller, and an output unit 6 for delaying an FM signal according to a reference pulse signal and outputting it.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供一种能够提取声音信号而不受诸如电阻器，制造时产生的电容器和电源电压变化等元件的变化的影响的脉冲计数检测电路。
解决方案：脉冲计数检测电路由至少配备有电压电流转换电路1，电流镜电路2-4，参考脉冲形成电路5的延迟电路构成，该参考脉冲形成电路5由比较器9连接到参考电压 ，电容器C3，开关SW3和控制器，以及用于根据参考脉冲信号延迟FM信号并输出的输出单元6。 版权所有（C）2006，JPO＆NCIPI
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