公开(公告)号：US5961648A

公开(公告)日：1999-10-05

申请号：US764070

申请日：1996-12-06

申请人： Hyeong-Sik Choi ,  Bong-Rak Choi

发明人： Hyeong-Sik Choi ,  Bong-Rak Choi

IPC分类号： G09G1/00 ,  H04N5/63 ,  G06F1/32

CPC分类号： H04N5/63 ,  G09G1/005

摘要： A computer having a monitor driving device for controlling video display turn-on time includes a power supply, a computer circuit, a monitor which may be integrated with the computer in one body, and a preheating controller. The monitor driving device for controlling video display time can reduce a time required for displaying a video image again without influencing the life span of a cathode ray tube when power is applied to use the monitor again after previously cutting off the power supplied to the monitor to reduce power consumption by the monitor which may be integrated with the computer in one body.

摘要翻译： 具有用于控制视频显示开启时间的监视器驱动装置的计算机包括电源，计算机电路，可与一体机中的计算机集成的监视器和预热控制器。 用于控制视频显示时间的监视器驱动装置可以在预先切断提供给监视器的电源之后再次施加电源以再次使用监视器时，而不影响阴极射线管的寿命而减少显示视频图像所需的时间 可以将显示器的功耗降低到一体，这可能与计算机集成在一起。

公开(公告)号：US20090072905A1

公开(公告)日：2009-03-19

申请号：US12210670

申请日：2008-09-15

申请人： Hoang Duong Quoc ,  Eung Ju Kim ,  Sang Gug Lee ,  Jeong Seon Lee ,  Bong Rak Choi ,  Hong Bong Kim

发明人： Hoang Duong Quoc ,  Eung Ju Kim ,  Sang Gug Lee ,  Jeong Seon Lee ,  Bong Rak Choi ,  Hong Bong Kim

IPC分类号： H03F3/45

CPC分类号： H03G7/06 ,  H03G1/0029

摘要： There is provided a variable gain amplifier that is implemented with a CMOS device and has wide band variation and wide bandwidth by a predetermined exponential function. A variable gain amplifier having wide gain variation and wide bandwidth according to an aspect of the invention may include: a differential amplification section differentially amplifying an input signal according to a gain adjustment signal; and a gain adjustment section supplying the gain adjustment signal on the basis of an approximated exponential function determined according to a predetermined bias current, and adjusting a gain of the differential amplification section.

摘要翻译： 提供了一种用CMOS器件实现的可变增益放大器，并且通过预定的指数函数具有宽带变化和宽带宽。 根据本发明的一个方面，具有宽增益变化和宽带宽的可变增益放大器可以包括：差分放大部分，根据增益调整信号对输入信号进行差分放大; 以及增益调整部，其基于根据预定偏置电流确定的近似指数函数提供增益调整信号，并且调整差分放大部分的增益。

公开(公告)号：US07400048B2

公开(公告)日：2008-07-15

申请号：US11457767

申请日：2006-07-14

申请人： Bong Rak Choi

发明人： Bong Rak Choi

IPC分类号： H01L29/40

CPC分类号： H01L23/49838 ,  H01L21/563 ,  H01L24/28 ,  H01L24/81 ,  H01L2224/16225 ,  H01L2224/73203 ,  H01L2224/73204 ,  H01L2224/81801 ,  H01L2224/83102 ,  H01L2224/92125 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01023 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01078 ,  H01L2924/01082 ,  H01L2924/19041 ,  H01L2924/19042 ,  H01L2924/19043 ,  H01L2924/3025 ,  H05K1/111 ,  H05K3/3452 ,  H05K2201/09781 ,  H05K2201/0989 ,  H05K2201/10674 ,  H05K2201/10977 ,  Y02P70/611 ,  H01L2924/3512 ,  H01L2924/00

摘要： A void-free circuit board and a semiconductor package having the same includes a protective layer covering and protecting an electrode pattern formed on an upper surface of a substrate. The protective layer is applied around a solder ball provided on the electrode pattern except on an immediate vicinity of the solder ball to form an opening. The semiconductor package also includes at least one gap compensation part comprising a protrusion that comes in contact with an underfill material injected to the opening before the electrode pattern. The protrusion has a thickness substantially the same as that of a portion of the electrode pattern exposed in the opening. This prevents voids with air captured therein due to non-uniform capillary action during injection of the underfill material.

摘要翻译： 无空隙电路板及其半导体封装具有覆盖并保护形成在基板上表面的电极图案的保护层。 保护层围绕设置在电极图案上的焊球周围施加，除了在焊球的紧邻附近形成开口。 半导体封装还包括至少一个间隙补偿部件，其包括与在电极图案之前注入到开口处的底部填充材料接触的突起。 突出部的厚度与暴露于开口部的电极图案的部分的厚度基本相同。 这防止了在注入底部填充材料期间由于毛细作用不均匀而捕获在其中的空气的空隙。

公开(公告)号：US20070096337A1

公开(公告)日：2007-05-03

申请号：US11457767

申请日：2006-07-14

申请人： Bong Rak CHOI

发明人： Bong Rak CHOI

IPC分类号： H01L23/48 ,  H01L23/52 ,  H01L29/40

CPC分类号： H01L23/49838 ,  H01L21/563 ,  H01L24/28 ,  H01L24/81 ,  H01L2224/16225 ,  H01L2224/73203 ,  H01L2224/73204 ,  H01L2224/81801 ,  H01L2224/83102 ,  H01L2224/92125 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01023 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01078 ,  H01L2924/01082 ,  H01L2924/19041 ,  H01L2924/19042 ,  H01L2924/19043 ,  H01L2924/3025 ,  H05K1/111 ,  H05K3/3452 ,  H05K2201/09781 ,  H05K2201/0989 ,  H05K2201/10674 ,  H05K2201/10977 ,  Y02P70/611 ,  H01L2924/3512 ,  H01L2924/00

摘要： A void-free circuit board and a semiconductor package having the same includes a protective layer covering and protecting an electrode pattern formed on an upper surface of a substrate. The protective layer is applied around a solder ball provided on the electrode pattern except on an immediate vicinity of the solder ball to form an opening. The semiconductor package also includes at least one gap compensation part comprising a protrusion that comes in contact with an underfill material injected to the opening before the electrode pattern. The protrusion has a thickness substantially the same as that of a portion of the electrode pattern exposed in the opening. This prevents voids with air captured therein due to non-uniform capillary action during injection of the underfill material.

摘要翻译： 无空隙电路板及其半导体封装具有覆盖并保护形成在基板上表面的电极图案的保护层。 保护层围绕设置在电极图案上的焊球周围施加，除了在焊球的紧邻附近形成开口。 半导体封装还包括至少一个间隙补偿部件，其包括与在电极图案之前注入到开口处的底部填充材料接触的突起。 突出部的厚度与暴露于开口部的电极图案的部分的厚度基本相同。 这防止了在注入底部填充材料期间由于毛细作用不均匀而捕获在其中的空气的空隙。

公开(公告)号：US06603656B2

公开(公告)日：2003-08-05

申请号：US09990288

申请日：2001-11-23

申请人： Sung Eun Cho ,  Gi Lyong Na ,  Bong Rak Choi

发明人： Sung Eun Cho ,  Gi Lyong Na ,  Bong Rak Choi

IPC分类号： G06F116

CPC分类号： H05K5/0234 ,  G06F1/18 ,  Y10S248/917 ,  Y10T16/54052

摘要： A stand device in a wireless LAN adapter is provided. The stand device includes a receptacle defined by a base plate and side extensions, a support unit formed on the base plate, a stand, and a holding unit coupled to the stand and supported bu the support unit. The stand is rotatably connected to the holding unit. A plurality of protrusions formed on the holding unit are engaged with respective grooves formed on support unit in order to maintain the rotation angle of the holding unit and the stand with respect to the support unit and the adapter. An elastic member elastically coupling the holding unit to the support unit is disposed between the holding unit and the support unit. The elastic member does not rotate about the adapter and the support unit while the stand and the holding unit rotates about the elastic member, support unit, and the adapter.

摘要翻译： 提供无线LAN适配器中的支架设备。 支架装置包括由基板和侧延伸部限定的插座，形成在基板上的支撑单元，支架和联接到支架并被支撑在支撑单元上的保持单元。 支架可旋转地连接到保持单元。 形成在保持单元上的多个突起与形成在支撑单元上的各个槽接合，以便保持保持单元和支架相对于支撑单元和适配器的旋转角度。 将保持单元弹性地联接到支撑单元的弹性构件设置在保持单元和支撑单元之间。 当支架和保持单元围绕弹性构件，支撑单元和适配器旋转时，弹性构件不围绕适配器和支撑单元旋转。

公开(公告)号：US5948077A

公开(公告)日：1999-09-07

申请号：US960506

申请日：1997-10-29

申请人： Bong-Rak Choi ,  Joong-Sun You

发明人： Bong-Rak Choi ,  Joong-Sun You

IPC分类号： G06F13/14 ,  G06F1/16 ,  G06F1/18 ,  G06F11/22 ,  G06F13/40 ,  G06F13/00

CPC分类号： G06F13/4068

摘要： An identification system for identifying plug-in or modular type peripheral devices adopted in a portable computer through one module bay is described. The identification system includes a voltage divider provided at the peripheral device. This voltage divider is connected to a signal line for supplying specific voltage level with the portable computer through a connector. Also, this signal line is coupled with a resistor which generates a reference voltage. An analog-to-digital converter is provided for converting voltage level produced at the signal line into the corresponding digital value. This digital value is supplied with the computer system to determine whether the digital value corresponds to a preset value designated to a specific peripheral device. To this end, a ROM BIOS stores a plurality of identification data corresponding to each digital value of the A/D converter. By detecting different analog voltage level as an identification signal through a signal line, using only one signal line is possible. This provides the most effective method for identifying more than three peripheral devices with the least signal lines and connector pins. Thus, the size of the connector can be reduced, and thereby saving space of the portable computer.

摘要翻译： 描述了通过一个模块托架识别便携式计算机中采用的插件或模块化型外围设备的识别系统。 识别系统包括设置在外围设备处的分压器。 该分压器连接到用于通过连接器与便携式计算机提供特定电压电平的信号线。 此外，该信号线与产生参考电压的电阻耦合。 提供了一个模数转换器，用于将在信号线产生的电压电平转换成相应的数字值。 该数字值与计算机系统一起提供以确定数字值是否对应于指定给特定外围设备的预设值。 为此，ROM BIOS存储对应于A / D转换器的每个数字值的多个识别数据。 通过信号线检测不同的模拟电压作为识别信号，只能使用一条信号线。 这提供了用于识别具有最少信号线和连接器引脚的三个以上外围设备的最有效的方法。 因此，可以减小连接器的尺寸，从而节省便携式计算机的空间。