专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4608464A Interface circuit interconnecting a bidirectional two-wire line with unidirectional four-wire lines 失效
标题翻译：接口电路将双向双线线路与单向四线制线路互连
公开(公告)号：US4608464A
公开(公告)日：1986-08-26
申请号：US605904
申请日：1984-05-01
申请人： Yuichi Morikawa , Hirohiko Sato , Eiichi Amada , Toshiro Suzuki , Hirotoshi Shirasu , Hiroshi Kuwahara
发明人： Yuichi Morikawa , Hirohiko Sato , Eiichi Amada , Toshiro Suzuki , Hirotoshi Shirasu , Hiroshi Kuwahara
IPC分类号： H04B3/03 , H04B3/20 , H04B3/23 , H04B1/58
CPC分类号： H04B3/03 , H04B3/23
摘要： In an interface circuit which couples a two-wire line of bidirectional transmission and unidirectional four-wire receiving and transmitting lines; in order to permit the interface circuit to operate in adaptation to the fluctuation of an impedance with the two-wire line side viewed from the four-wire receiving line, the four-wire receiving line is provided with a plurality of filters and a group of switches for selecting the filters, an output of the four-wire transmitting line is compared with outputs obtained by scanning the filters, and the filter providing the minimum output difference in the comparisons is selected and connected.
摘要翻译：在耦合双向传输双线线路和单向四线接收和发射线路的接口电路中; 为了允许接口电路适应于从四线接收线观察到的双线线路的阻抗的波动，四线接收线路设置有多个滤波器和一组用于选择滤波器的开关，将四线传输线的输出与通过扫描滤波器获得的输出进行比较，并选择并连接提供比较中最小输出差的滤波器。

2. 发明授权

US4558185A Subscriber line interface circuit with complex impedance 失效
标题翻译：用户线接口电路具有复阻抗
公开(公告)号：US4558185A
公开(公告)日：1985-12-10
申请号：US445976
申请日：1982-12-01
申请人： Yuichi Morikawa , Kazuo Saito , Eiichi Amada , Hirotoshi Shirasu
发明人： Yuichi Morikawa , Kazuo Saito , Eiichi Amada , Hirotoshi Shirasu
IPC分类号： H04B3/03 , H04B1/58 , H04M1/58 , H04Q3/42
CPC分类号： H04M1/585 , H04B1/586
摘要： For the purpose of realizing a line circuit, especially a two-wire four-wire conversion circuit of a telephone exchange in the form of LSI and providing the conversion circuit with an impedance which is suitable to a side tone characteristic of the telephone set, in a line circuit composed of a hybrid circuit wherein the four-wire input line is connected to the two-wire subscriber line via a buffer amplifier and a terminating impedance and in addition the four-wire output line is connected to the output of a subtractor which subtracts an input signal of the four-wire input line passed through a filter circuit from a signal fed from the two-wire subscriber line, the terminating impedance is formed by a resistor component and in addition a feedback circuit having such a transfer characteristic that the impedance of the line circuit seen from the two-wire subscriber line side will become a specified complex impedance is installed between a line which couples the two-wire subscriber line to the subtractor and an input of the buffer amplifier.
摘要翻译：为了实现线路电路，特别是LSI形式的电话交换机的二线四线转换电路，为转换电路提供适合于电话机侧音特性的阻抗，由混合电路构成的线路电路，其中四线输入线经由缓冲放大器与终端阻抗连接到两线用户线，此外四线输出线连接到减法器的输出，从通过二线用户线的信号中减去通过滤波器电路的四线输入线的输入信号，终端阻抗由电阻器部件形成，此外，具有这样的转移特性的反馈电路，从两线用户线路侧看到的线路电路的阻抗将变为指定的复阻抗，安装在耦合两线用户线路t的线路之间减法器和缓冲放大器的输入。

3. 发明申请

US20080158043A1 Radar device 审中-公开
标题翻译：雷达设备
公开(公告)号：US20080158043A1
公开(公告)日：2008-07-03
申请号：US11823083
申请日：2007-06-25
申请人： Wataru Ishio , Ryoji Fujioka , Yuichi Morikawa
发明人： Wataru Ishio , Ryoji Fujioka , Yuichi Morikawa
IPC分类号： G01S13/00
CPC分类号： G01S7/4811 , G01S7/4816 , G01S7/4818 , G01S7/497 , G01S17/08
摘要： A radar device includes a light projecting part for projecting light to an object, first and second light receiving elements each for outputting a signal according to the quantity of received light flux, and an optical system having a first optical path and a second optical path for guiding reflected light from the object respectively to the first light receiving element and to the second light receiving element. The optical system guides more light flux to the first optical path than to the second optical path corresponding to an incident light flux to the radar device.
摘要翻译：雷达装置包括用于将光投射到物体的光投射部，用于根据接收光束的量输出信号的第一和第二光接收元件，以及具有第一光路和第二光路的光学系统，将来自物体的反射光分别引导到第一光接收元件和第二光接收元件。光学系统将比第二光路更多的光通量引导到与第一光路对应的入射光束到雷达装置。

4. 发明申请

US20080158042A1 Radar device 审中-公开
标题翻译：雷达设备
公开(公告)号：US20080158042A1
公开(公告)日：2008-07-03
申请号：US11823018
申请日：2007-06-25
申请人： Wataru Ishio , Ryoji Fujioka , Yuichi Morikawa
发明人： Wataru Ishio , Ryoji Fujioka , Yuichi Morikawa
IPC分类号： G01S13/00
CPC分类号： G01S7/4868 , G01S7/4802 , G01S17/42
摘要： A radar device has a light projecting circuit for projecting light to an object. Reflected light from the object is received by a first light receiving circuit and a second light receiving circuit and converted into signals. The first and second light receiving circuits each have an activity range in which the outputted signal is proportional to the logarithm of the quantity of received light. The activity range of the first light receiving circuit is lower than the activity range of the second light receiving circuit.
摘要翻译：雷达装置具有用于将光投射到物体的投光电路。来自物体的反射光被第一光接收电路和第二光接收电路接收并转换为信号。第一和第二光接收电路各自具有其输出信号与接收光量的对数成比例的活动范围。第一光接收电路的活动范围低于第二光接收电路的活动范围。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式