公开(公告)号：US5676873A

公开(公告)日：1997-10-14

申请号：US492756

申请日：1995-06-21

申请人： Takeo Takase ,  Masao Urayama ,  Terutaka Tokumaru ,  Minoru Makita ,  Seiki Yano

发明人： Takeo Takase ,  Masao Urayama ,  Terutaka Tokumaru ,  Minoru Makita ,  Seiki Yano

IPC分类号： H05B6/66 ,  H01J1/304 ,  H01J3/02 ,  H01J23/04 ,  H01J23/075 ,  H01J23/20 ,  H01J23/34 ,  H05B6/74 ,  H05B6/64 ,  H01J25/50

CPC分类号： H01J23/075 ,  H01J3/022 ,  H05B6/74 ,  H01J2225/50

摘要： There is provided a magnetron comprising a cold cathode having an electron emitting member which is formed linearly or as a plane on a substrate to emit electrons a subdivided anode disposed oppositely in parallel with the electron emitting member, the subdivided anode having cavity resonators formed therein at the side of the cold cathode, and a magnet which producing a magnetic field lying at right angles to an electric field applied between the cold cathode and the subdivided anode. There is also provided a microwave oven for dielectric-heating a substance to be heated by using the magnetron as a microwave supply source.

摘要翻译： 提供了一种磁控管，其包括具有电子发射部件的冷阴极，该电子发射部件在基板上线性地或作为平面形成以向与电子发射部件平行地平行设置的细分阳极发射电子，该细分阳极具有形成在其中的空腔谐振器 冷阴极的一侧，以及产生与施加在冷阴极和细分阳极之间的电场成直角的磁场的磁体。 还提供了一种微波炉，用于通过使用磁控管作为微波供应源来介质加热被加热物质。

公开(公告)号：US5315402A

公开(公告)日：1994-05-24

申请号：US932748

申请日：1992-08-25

申请人： Yasuyuki Ito ,  Takeshi Kawabe ,  Yukio Tojo ,  Takeo Takase

发明人： Yasuyuki Ito ,  Takeshi Kawabe ,  Yukio Tojo ,  Takeo Takase

IPC分类号： H04N5/85 ,  G11B11/18

CPC分类号： H04N5/85

摘要： A video signal recording/reproducing device has at least a frequency modulating unit which FM modulates information to be recorded on an optical disk memory, a laser driving pulse generating unit for generating a laser driving pulse derived from the frequency-modulated signal generated by the frequency modulating unit and for modifying the duty factor of the laser driving pulse in accordance with the linear velocity of the optical disk memory where recording is taking place; and a recording unit for controlling the laser power during recording to an optimum value in accordance with the linear velocity of the optical disk memory where recording is taking place. This arrangement enables reduction of the minimal length of recording bits resulting in reproduced signals of a level sufficient for obtaining reproduced images of a fine quality addition enables increase of the recording capacity of the optical disk memory.

摘要翻译： 视频信号记录/再现装置至少具有调制要记录在光盘存储器上的信息的频率调制单元，激光驱动脉冲产生单元，用于产生由频率产生的频率调制信号导出的激光驱动脉冲 并且用于根据正在进行记录的光盘存储器的线速度来修改激光驱动脉冲的占空因数; 以及记录单元，用于根据正在进行记录的光盘存储器的线速度将记录期间的激光功率控制到最佳值。 这种布置能够减少记录位的最小长度，从而产生足以获得精细质量附加的再现图像的再现信号，从而能够增加光盘存储器的记录容量。