公开(公告)号：US4198601A

公开(公告)日：1980-04-15

申请号：US843669

申请日：1977-10-19

Applicant: Atsushi Ono ,  Shoji Fujino ,  Yukio Ozaki ,  Kentaro Suzuki

Inventor： Atsushi Ono ,  Shoji Fujino ,  Yukio Ozaki ,  Kentaro Suzuki

IPC: H04B1/40

CPC classification number: H04B1/401

Abstract: A control unit for the transceiver characterized in that the whole operating portions of the transceiver is built into a housing of such a size which makes it easy to grip by one hand and the operator can remote-control the transceiver, holding the housing separate from the transceiver in his hand.

Abstract translation: 一种用于收发器的控制单元，其特征在于，收发器的整个操作部分被内置在这样的尺寸的壳体中，这使得一只手易于抓握，并且操作者可以远程控制收发器，将壳体与 收音机在他手中。

公开(公告)号：US4450586A

公开(公告)日：1984-05-22

申请号：US429826

申请日：1982-09-30

Applicant: Shoji Fujino

Inventor： Shoji Fujino

IPC: H03J7/18

CPC classification number: H03J7/18

Abstract: This invention relates to a FM receiver and more particularly to a FM receiver having an auto-scanning circuit. In a conventional FM receiver using an auto-scanning circuit, a window comparator is provided at the latter position of a demodulation circuit. When an electromagnetic wave is received, scanning is stopped by using the both of DC component of demodulation voltage generated within a specific range of frequencies around the tuning frequency and a squelch signal. In the present invention, in order to utilize stabilized parts of DC component of the demodulation voltage, as much as possible, except for the rising parts of the DC component, a timing circuit is provided which is switched on by the demodulated signal outputted from the window comparator continuing for a given time, thereby a perfect tuning is assured.

Abstract translation: 本发明涉及一种FM接收机，更具体地说，涉及一种具有自动扫描电路的FM接收机。 在使用自动扫描电路的常规FM接收机中，窗口比较器设置在解调电路的后一位置。 当接收到电磁波时，通过使用在调谐频率周围的特定频率范围内产生的解调电压的DC分量和静噪信号两者来停止扫描。 在本发明中，为了尽可能地利用直流分量的稳定部分的解调电压，除了直流分量的上升部分以外，提供定时电路，该定时电路由从 窗口比较器持续给定的时间，从而确保完美的调谐。

公开(公告)号：US4199721A

公开(公告)日：1980-04-22

申请号：US843668

申请日：1977-10-19

Applicant: Atsushi Ono ,  Shoji Fujino ,  Yukio Ozaki ,  Kentaro Suzuki

Inventor： Atsushi Ono ,  Shoji Fujino ,  Yukio Ozaki ,  Kentaro Suzuki

IPC: H04B1/38 ,  H04B1/40

CPC classification number: H04B1/3822

Abstract: Hand-held microphone consisting of a housing which is of such a size that said housing can be easily held by one hand, said housing including a rotary switch means which generates a digital coded signal for individually selecting one of preset frequencies and a digital coded signal for making a digital display of the channel member corresponding to the selected frequency; a channel number display means which is driven by the digital coded signal from said rotary switch means and makes a digital display of the channel number corresponding to the selected frequency; an electroacoustic transducer means; a transmit/receive switch means which switches between transmitting condition and receiving condition of a transceiver and at the same time actuates said electroacoustic transducer means; and a gain control means which varies the amplification degree of the audio amplifier and/or the radio frequency amplifier in the transceiver, whereby transmission or reception can be made by the operator who handles the transceiver in one hand.

Abstract translation: 由具有所述外壳尺寸的壳体的手持式麦克风可以容易地用一只手容易地保持，所述壳体包括旋转开关装置，该旋转开关装置产生用于单独选择预设频率之一的数字编码信号和数字编码信号 用于进行对应于所选频率的频道成员的数字显示; 频道号显示装置，其由来自所述旋转开关装置的数字编码信号驱动，并且对与所选频率相对应的频道号进行数字显示; 电声换能器装置; 发送/接收开关装置，其在收发器的发送状态和接收状态之间切换，并且同时致动所述电声换能器装置; 以及增益控制装置，其改变收发器中的音频放大器和/或射频放大器的放大度，由此一方面由处理收发器的操作者进行发送或接收。

公开(公告)号：US4193408A

公开(公告)日：1980-03-18

申请号：US913361

申请日：1978-06-07

Applicant: Shoji Fujino

Inventor： Shoji Fujino

IPC: A61B5/053 ,  A61C1/07 ,  A61C5/02 ,  A61C19/04 ,  A61B5/05

CPC classification number: A61C1/07 ,  A61B5/0534 ,  A61C19/041 ,  A61C5/02 ,  A61C19/042

Abstract: An endodontic device for measuring and indicating the depth of penetration of a probe in a root canal of a tooth during a root canal operation includes a meter having a pair of juxtaposed, graduated scales for respectively indicating probe penetration depth in a first broad range of penetration within the root canal, and a second, relatively narrow range of penetration therein, adjacent the apex of the canal, and further includes a bidirectional indicator pointer to provide a precise, accurate visual indication of the probe penetration depth, particularly when such probe is immediately adjacent the apex of the canal. An a.c. measurement signal derived from a d.c. powered oscillator circuit is passed through the probe to a bridge circuit which measures the probe resistance, and thus the position of the probe relative to the canal apex, and also inverts the phase of the measurement signal when the probe reaches a prescribed penetration depth close to the canal apex. A pair of parallel coupled discriminator circuits sense the phase of the measurement signal and are respectively operative to selectively swing the indicator pointer in one direction when the probe is in the first broad penetration range thereof to produce a reading on one of the scales, and reverse the swing direction of the indicator pointer upon sensing a phase change in the measurement signal to produce a reading on the second, expanded scale associated with the second narrow probe penetration range immediately adjacent the canal apex.

Abstract translation: 用于在根管手术期间测量和指示探针在牙根管中的穿透深度的根管装置包括具有一对并置的刻度尺的计量器，用于分别在第一宽范围的穿透中分别指示探针穿透深度 在根管内，以及第二个相对较窄的渗透范围，邻近管道的顶点，并且还包括双向指示器指针，以提供探针穿透深度的精确，准确的视觉指示，特别是当这种探针立即 毗邻运河的顶点。 一个 测量信号源自直流 电源振荡器电路通过探头传递到桥接电路，该电路测量探头电阻，并因此测量探头相对于管道顶点的位置，并且当探针到达接近于 运河顶点。 一对并联耦合鉴别器电路感测测量信号的相位，并且当探头处于其第一宽度穿透范围时分别用于在一个方向上选择性地摆动指示器指针，以在其中一个刻度上产生读数，并且反向 感测测量信号中的相位变化的指示器指针的摆动方向，以便产生与紧邻于管道顶点的第二窄探针穿透范围相关联的第二扩展尺度的读数。