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1. 发明授权

US4365349A Radio receiver having phase locked loop and automatic frequency control loop for stably maintaining local oscillator frequency of voltage-controlled local oscillator 失效
标题翻译：具有锁相环和自动频率控制回路的无线电接收器，用于稳定地保持压控本地振荡器的本机振荡频率
公开(公告)号：US4365349A
公开(公告)日：1982-12-21
申请号：US227535
申请日：1981-01-22
申请人： Minoru Ogita , Shigenobu Kimura
发明人： Minoru Ogita , Shigenobu Kimura
IPC分类号： H03J1/00 , H03J5/02 , H04B1/10 , H04B1/16
CPC分类号： H03J1/005 , H03J5/0281
摘要： A radio receiver comprises a phase locked loop and an automatic frequency control loop which are selectively coupled with a voltage-controlled local oscillator to control a local oscillator frequency. The phase locked loop and the automatic frequency control loop have a common loop filter which supplies the voltage-controlled oscillator with a control voltage. The loop filter is arranged so that its time constant may be switched from a small value to a great value in response to switching of the operation mode of the voltage-controlled oscillator from a phase locked loop control mode for the selection of broadcasting station to an automatic frequency control loop control mode for the maintenance of the local oscillator frequency after tuning of the radio receiver. The radio receiver can be arranged so that the local oscillator frequency may be maintained by the phase locked loop after the tuning of the receiver to a weak broadcast signal when muting control is rendered ineffective by a muting switch.
摘要翻译：无线电接收机包括锁相环和自动频率控制环路，其选择性地与压控本地振荡器耦合以控制本地振荡器频率。锁相环和自动频率控制回路具有公共环路滤波器，其向压控振荡器提供控制电压。环路滤波器被布置成使得其时间常数可以响应于压控振荡器的操作模式从用于选择广播站的相位锁定环控制模式切换到一个较大的值自动频率控制环路控制模式，用于在对无线电接收机进行调谐后维持本地振荡器频率。无线电接收机可以被布置成使得当静音控制由静音开关无效时，在将接收机调谐到弱广播信号之后，可以通过锁相环保持本地振荡器频率。

2. 发明授权

US4344187A Radio receiver with system for maintaining optimum tuning 失效
标题翻译：无线电接收机，具有保持最佳调谐功能的系统
公开(公告)号：US4344187A
公开(公告)日：1982-08-10
申请号：US195474
申请日：1980-10-09
申请人： Minoru Ogita , Shigenobu Kimura
发明人： Minoru Ogita , Shigenobu Kimura
IPC分类号： H03J7/06 , H04B1/16
CPC分类号： H03J7/065
摘要： A radio receiver comprises a voltage-controlled oscillator acting as a local oscillator, a capacitor to supply a control voltage to the voltage-controlled oscillator, a phase locked loop incorporating the voltage-controlled oscillator and adapted for a preset selection of a broadcast station, a charge/discharge control circuit to charge or discharge the capacitor adapted for automatic or manual selection of a broadcast station, and an automatic frequency control circuit adapted for maintenance of a local oscillator frequency when the broadcast station is received. A control circuit is provided which couples the phase locked loop or charge/discharge control circuit to the capacitor in response to the selection of one of the station select modes and couples the automatic frequency control circuit to the capacitor in response to the reception of the broadcast station in a good receiving condition.
摘要翻译：无线电接收机包括作为本地振荡器的电压控制振荡器，向压控振荡器提供控制电压的电容器，结合有压控振荡器并适于预设选择广播电台的锁相环，用于对适用于广播站的自动或手动选择的电容器进行充电或放电的充电/放电控制电路，以及适于在接收广播站时维持本地振荡器频率的自动频率控制电路。提供控制电路，其响应于选择一个站选择模式而将锁相环或充放电控制电路耦合到电容器，并且响应于广播的接收将自动频率控制电路耦合到电容器站在良好的接收条件。

3. 发明授权

US4339826A Radio receiver having phase locked loop frequency synthesizer 失效
标题翻译：无线电接收机具有锁相环频率合成器
公开(公告)号：US4339826A
公开(公告)日：1982-07-13
申请号：US165091
申请日：1980-07-01
申请人： Minoru Ogita , Shigenobu Kimura
发明人： Minoru Ogita , Shigenobu Kimura
IPC分类号： H03L7/18 , H03J5/00 , H03J5/02 , H03J7/28 , H03L7/185 , H04B1/26
CPC分类号： H03L7/185 , H03J5/0281
摘要： A radio receiver comprises a frequency conversion circuit connected between a frequency-variable local oscillator and a divide-by-N programmable counter incorporated in a phase locked loop frequency synthesizer and adapted to continuously change the frequency to be divided by the programmable counter. Owing to the frequency conversion circuit, the local oscillator frequency is permitted to continuously change in the locked state of the phase locked loop so that the intermediate frequency offset adjustment of receivers, that is, the adjustment of the intermediate frequency of each receiver to the center frequency of an intermediate frequency filter used in the receiver can be made easily, and that a reception of such a broadcast station as having a carrier frequency which is not an integral multiple of a channel spacing frequency also can be made.
摘要翻译：无线电接收机包括连接在频率可变的本地振荡器和并入在锁相环频率合成器中的分频N可编程计数器之间的频率转换电路，并且适于连续地改变由可编程计数器划分的频率。由于频率转换电路，允许本地振荡器频率在锁相环的锁定状态下连续变化，使得接收机的中频偏移调整，即将每个接收机的中频调整到中心可以容易地使用在接收机中使用的中频滤波器的频率，并且可以进行具有不是信道间隔频率的整数倍的载波频率的这样的广播台的接收。

4. 发明申请

US20060044527A1 Projection type image display apparatus 有权
标题翻译：投影型图像显示装置
公开(公告)号：US20060044527A1
公开(公告)日：2006-03-02
申请号：US11211427
申请日：2005-08-26
申请人： Takashi Watanabe , Kenichi Shiba , Minoru Ogita
发明人： Takashi Watanabe , Kenichi Shiba , Minoru Ogita
IPC分类号： G03B21/14
CPC分类号： H04N9/3114 , H04N5/7458 , H04N9/315
摘要： A DMD (digital micromirror device) includes a substantially rectangular element face made up of plural mirror elements arranged in a matrix. The DMD is provided with a light shielding cover having a light transmitting portion which corresponds to the element face. Radiated from the illumination optical system including a rod integrator, the illumination light enters the element face, on a flat surface including the diagonal line of the element face, at an inclined angle with respect to the normal to the element face. Near a light exit face of the rod integrator, a mask plate is disposed to regulate a part of the illumination light. The mask plate has a mask aperture of substantially rhombus shape. The illumination light passing the mask aperture is reshaped so that an illumination area can be a substantially rectangular shape on the element face.
摘要翻译： DMD（数字微镜装置）包括由矩阵排列的多个反射镜元件构成的大致矩形的元件面。 DMD设置有具有对应于元件面的透光部的遮光罩。从包括杆积分器的照明光学系统辐射，照明光相对于元件面的法线以倾斜角度在元件面的包括元件面的对角线的平坦表面上进入元件面。在杆积分器的光出射面附近，设置掩模板来调节照明光的一部分。面罩板具有大致菱形的面罩孔。通过掩模孔的照明光被重新成形，使得照明区域在元件面上可以是基本上矩形的形状。

5. 发明授权

US4454607A FM Stereophonic receiver with CPU controlled tuning and demodulating 失效
标题翻译： FM立体声接收机，具有CPU控制调谐和解调功能
公开(公告)号：US4454607A
公开(公告)日：1984-06-12
申请号：US298008
申请日：1981-08-31
申请人： Minoru Ogita
发明人： Minoru Ogita
IPC分类号： H03D1/22 , H03J5/02 , H04H1/00 , H04H40/54 , H04H5/00
CPC分类号： H04H40/54 , H03D1/22 , H03J5/0281
摘要： An FM stereophonic receiver is arranged so that a central processing unit assigned for selection of a broadcasting station is burdened, based on a clock pulse of the central processing unit, to generate sub-carriers synchronized with a pilot signal contained in a composite signal, for being used in multiplex demodulation, whereby to improve signal-to-noise ratio of the multiplex demodulated signals, and to simplify the circuit arrangement of the receiver.
摘要翻译： FM立体声接收机被布置成基于中央处理单元的时钟脉冲来分配用于选择广播站的中央处理单元，以产生与包含在复合信号中的导频信号同步的副载波，用于用于多路解调，从而提高多路解调信号的信噪比，并简化接收机的电路布置。

6. 发明授权

US4342000A FM Detecting circuit 失效
标题翻译： FM检测电路
公开(公告)号：US4342000A
公开(公告)日：1982-07-27
申请号：US135149
申请日：1980-03-28
申请人： Minoru Ogita
发明人： Minoru Ogita
IPC分类号： H03D3/10 , H03D3/22 , H03D3/14 , H03D3/26
CPC分类号： H03D3/22 , H03D3/10 , H03D2200/0009 , H03D2200/0049 , H03D2200/0082 , H03D2200/0088
摘要： In an FM detecting circuit of either the ratio detecting circuit type or the quadrature detecting circuit type arranged to have an LC resonance circuit and to detect the amount of deviation of an FM input signal relative to the resonance frequency by utilizing the resonance characteristic of the LC resonance circuit in the vicinity of the resonance frequency to thereby perform FM detection, a semiconductor element is connected to the LC resonance circuit to expand the rectilinear region of the resonance characteristic and to reduce detecting distortions.
摘要翻译：在布置成具有LC谐振电路的比率检测电路类型或正交检测电路类型的FM检测电路中，并且通过利用LC的谐振特性来检测FM输入信号相对于谐振频率的偏差量在谐振频率附近的谐振电路，从而进行FM检测，半导体元件连接到LC谐振电路，以扩大谐振特性的直线区域，并减少检测失真。

7. 发明授权

US4128810A Signal level indicator driving circuit 失效
标题翻译：信号电平指示器驱动电路
公开(公告)号：US4128810A
公开(公告)日：1978-12-05
申请号：US717391
申请日：1976-08-24
申请人： Minoru Ogita
发明人： Minoru Ogita
IPC分类号： G01R29/08 , H03G3/30 , H03J3/14 , H04B1/26
CPC分类号： H03J3/14 , H03G3/3052
摘要： In a radio receiver circuit provided with an automatic gain control circuit, a tuning indicator driving circuit is connected to a point in the signal transmission line of the receiver circuit at which the ac voltage level is zero and the dc voltage level is controlled by the output of the automatic gain control circuit. The change of the dc voltage level is utilized to indicate the input signal level in an indicator.
摘要翻译：在设置有自动增益控制电路的无线电接收机电路中，调谐指示器驱动电路连接到接收电路的信号传输线路中的交流电压电平为零并且直流电压电平由输出的自动增益控制电路。直流电压电平的变化用于指示指示器中的输入信号电平。

8. 发明授权

US3939442A Ceramic filter circuit 失效
标题翻译：陶瓷滤波电路
公开(公告)号：US3939442A
公开(公告)日：1976-02-17
申请号：US390703
申请日：1973-08-23
申请人： Minoru Ogita
发明人： Minoru Ogita
IPC分类号： H03H9/54 , H03H7/10 , H03H9/20
CPC分类号： H03H9/545 , H03H9/542
摘要： Reactance networks are connected just before and just after the ceramic filter element to adjust the linearity of the phase characteristic thereof, thereby reducing distortion.
摘要翻译：电抗网络恰好在陶瓷滤波元件之前和之后连接，以调整其相位特性的线性，从而减少失真。

9. 发明授权

US4580128A Digital signal processing device 失效
标题翻译：数字信号处理装置
公开(公告)号：US4580128A
公开(公告)日：1986-04-01
申请号：US591607
申请日：1984-03-20
申请人： Minoru Ogita , Norio Tomisawa
发明人： Minoru Ogita , Norio Tomisawa
IPC分类号： H03H17/00 , H03H21/00 , H03M1/00 , H03M1/66 , H04B14/04
CPC分类号： H03M1/0626 , H03M1/66
摘要： A digital signal processing device is disclosed. At an intermediate time point between respective sample data of a digital signal input is interpolated data expressed by the formula ##EQU1## wherein R.sub.l, m and n are positive integers. The digital signal interpolated with this interpolation data d is applied to a digital-to-analog converter where it is converted to an analog signal. This interpolation serves as a low-pass filter for removing unnecessary harmonic components, with the result that a analog filter used in a posterior stage after the digital-to-analog converter requires no steep characteristics and hence can be of a remarkedly simple structure and be manufactured at reduced cost.
摘要翻译：公开了一种数字信号处理装置。在数字信号输入的相应采样数据之间的中间时间点是由公式表示的内插数据，其中R1，m和n是正整数。用该插补数据d内插的数字信号被施加到数模转换器，在该数模转换器中被转换成模拟信号。该插值用作用于去除不必要的谐波分量的低通滤波器，结果是在数模转换器之后的后级中使用的模拟滤波器不需要陡峭的特性，因此可以是非常简单的结构，并且可以是以降低成本制造。

10. 发明授权

US4348666A Signal level display apparatus 失效
标题翻译：信号电平显示装置
公开(公告)号：US4348666A
公开(公告)日：1982-09-07
申请号：US160844
申请日：1980-06-19
申请人： Minoru Ogita
发明人： Minoru Ogita
IPC分类号： G01R13/40 , G09G3/32
CPC分类号： G01R13/405
摘要： A signal level display apparatus arranged so that an ac signal is superposed upon either an input signal or a reference voltage of a comparator to display the input signal with differences in degrees of brightness of illumination of light-emitting elements constituting a display unit when viewed externally, to thereby distinguish the level of the input signal which is closer to the level of the reference voltage from the level departing away therefrom. This apparatus also displays simultaneously on said display unit the level of two different input signals in distinguished degrees of illumination of the light-emitting elements.
摘要翻译：信号电平显示装置，被布置成使得交流信号叠加在比较器的输入信号或参考电压上，以在从外部观看时显示构成显示单元的发光元件的照明亮度的差异的输入信号，从而将距离参考电压的电平更接近的输入信号的电平与从其离开的电平进行区分。该装置还在所述显示单元上同时显示在发光元件的不同照明度下的两个不同输入信号的电平。

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