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公开(公告)号：US20180145708A1
公开(公告)日：2018-05-24
申请号：US15667808
申请日：2017-08-03
发明人： Byeong Hak JO , Jeong Hoon KIM , Hyun PAEK , Young Wong JANG
CPC分类号： H04B1/109 , H01P1/15 , H03K17/162 , H03K17/693 , H03K2217/0018 , H03K2217/0054 , H04B1/50
摘要： A radio frequency switch apparatus includes a radio frequency switch, a dynamic bias circuit, and a switch control circuit. The radio frequency switch includes a first radio frequency switch circuit connected between a first signal terminal and an input terminal. The first radio frequency switch circuit includes a series switch and a shunt switch. The dynamic bias circuit is configured to generate a bias voltage and a buffer voltage lower than a battery voltage by a preset voltage, using the battery voltage and configured to output the bias voltage to a signal line connected to the input terminal. The switch control circuit is configured to generate first and second gate voltages to switch the first radio frequency switch circuit, based on a band selection signal, using the battery voltage and the buffer voltage.
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公开(公告)号：US20190267950A1
公开(公告)日：2019-08-29
申请号：US16406199
申请日：2019-05-08
发明人： Byeong Hak JO , Jong Ok HA , Jeong Hoon KIM , Youn Suk KIM
摘要： A power amplifier apparatus, includes an envelope tracking (ET) current bias circuit configured to generate a first ET bias current by calculating a direct current DC, based on a reference voltage, and an ET current, based on an ET voltage, according to an envelope of an input signal; and a power amplifier circuit having a bipolar junction transistor supplied with the first ET bias current and a power voltage to amplify the input signal, wherein an average current of the first ET bias current is controlled to be substantially constant.
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13.发明申请公开(公告)号：US20190229718A1
公开(公告)日：2019-07-25
申请号：US16117794
申请日：2018-08-30
发明人： Byeong Hak JO , Hyun PAEK , Jeong Hoon KIM
IPC分类号： H03K17/0412
摘要： A radio frequency switching circuit includes a switching circuit comprising a plurality of switching transistors connected between a first terminal and a second terminal, a gate resistor circuit comprising a plurality of gate resistors, each of the plurality of gate resistors having a first node connected to a respective gate of each of the plurality of switching transistors, and a gate buffer circuit comprising a plurality of gate buffers, each of the plurality of gate buffers being connected to a respective second node of each of the plurality of gate resistors, wherein each of the plurality the gate buffers is configured to provide a first gate signal to the gate of each of the plurality of switching transistors through each of the plurality of gate resistors.
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公开(公告)号：US20190123689A1
公开(公告)日：2019-04-25
申请号：US15993971
申请日：2018-05-31
发明人： Jong Ok HA , Jeong Hoon KIM , Byeong Hak JO
摘要： An envelope tracking (ET) bias circuit includes a detection circuit configured to select an ET operation voltage input through a first input terminal of the detection circuit, or an envelope signal detected from a radio frequency (RF) signal input through a second input terminal of the detection circuit, in response to a first control signal, to and output he selected one of the ET operation voltage and the envelope signal as a detection signal; an amplification circuit configured to amplify the detection signal, and output the amplified detection signal; and a bias output circuit configured to generate an ET bias current based on the amplified signal, and output the generated ET bias current.
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公开(公告)号：US20190115872A1
公开(公告)日：2019-04-18
申请号：US15985995
申请日：2018-05-22
发明人： Byeong Hak JO , Jong Ok HA , Jeong Hoon KIM
CPC分类号： H03F1/0222 , H03F3/19 , H03F3/21 , H03F3/245 , H03F3/345 , H03F2200/102 , H03F2200/451 , H03G3/3042
摘要： An envelope tracking (ET) current bias circuit includes a rectifying circuit, a phase compensation circuit, and a voltage/current conversion circuit. The rectifying circuit is configured to detect an envelope voltage from a radio frequency (RF) signal. The phase compensation circuit is configured to compensate for a phase of the envelope voltage in which the phase thereof is delayed in the rectifying circuit to output a phase compensated enveloped voltage. The voltage/current conversion circuit is configured to convert the phase compensated envelope voltage into an ET bias current.
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公开(公告)号：US20150346879A1
公开(公告)日：2015-12-03
申请号：US14721503
申请日：2015-05-26
发明人： Moon Suk JEONG , Yong Il KWON , Tah Joon PARK , Byeong Hak JO
CPC分类号： G06F3/044 , G06F3/0416
摘要： A touch sensing apparatus may include a driving signal generating circuit including a first switch and a second switch and providing driving signals to a first node of a node capacitor, the driving signals being generated by switching operations of the first switch and the second switch, and a C-V converting circuit including a buffer circuit having a first feedback capacitor and a third switch disposed between a second node of the node capacitor and the first feedback capacitor and transferring a charging voltage of the node capacitor to the first feedback capacitor through a switching operation of the third switch to generate an output voltage. The buffer circuit further includes a fourth switch disposed between the second node of the node capacitor and a current source, and the fourth switch is turned on in an off operation section of the third switch.
摘要翻译： 触摸感测装置可以包括包括第一开关和第二开关的驱动信号发生电路，并且向节点电容器的第一节点提供驱动信号，所述驱动信号是通过第一开关和第二开关的切换操作产生的，以及 CV转换电路，包括具有第一反馈电容器的缓冲电路和设置在节点电容器的第二节点和第一反馈电容器之间的第三开关，并且通过开关操作将节点电容器的充电电压传送到第一反馈电容器 第三个开关产生一个输出电压。 缓冲电路还包括设置在节点电容器的第二节点和电流源之间的第四开关，并且第四开关在第三开关的断开操作部分中导通。
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公开(公告)号：US20140253491A1
公开(公告)日：2014-09-11
申请号：US13893733
申请日：2013-05-14
发明人： Yong Il KWON , Tah Joon PARK , Byeong Hak JO , Hyun Suk LEE
IPC分类号： G06F3/044
CPC分类号： G06F3/044 , G06F2203/04107
摘要： There are provided a touch sensing device and a touchscreen device, the touch sensing device including a plurality of driving electrodes extended in a first axial direction, a plurality of sensing electrodes extended in a second axial direction intersecting with the first axial direction, an integrating circuit unit generating a first analog signal by integrating a change in capacitance generated in a first sensing electrode among the plurality of sensing electrodes and generating a second analog signal from a change in capacitance generated in a second sensing electrode adjacent to the first sensing electrode, and a subtracting unit calculating a difference in levels between the first and second analog signals.
摘要翻译： 提供了一种触摸感测装置和触摸屏装置，该触摸感测装置包括沿第一轴向延伸的多个驱动电极，沿与第一轴向方向相交的第二轴向延伸的多个感测电极，积分电路 单元通过积分多个感测电极中的第一感测电极中产生的电容的变化而产生第一模拟信号，并且从与第一感测电极相邻的第二感测电极中产生的电容的变化产生第二模拟信号，以及 减法单元计算第一和第二模拟信号之间的电平差。
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公开(公告)号：US20140225858A1
公开(公告)日：2014-08-14
申请号：US13887841
申请日：2013-05-06
发明人： Byeong Hak JO , Tah Joon Park , Yong Il Kwon , Hyun Suk Lee
CPC分类号： G06F3/044 , G06F3/0418
摘要： A capacitance sensing apparatus includes: a driving circuit unit applying a driving signal of a first period to a node capacitor; a first integrating circuit unit integrating voltage charged in the node capacitor to generate output voltage of which a voltage level is changed twice during a second period; a buffer capacitor charged or discharged by the output voltage of the first integrating circuit unit; a second integrating circuit unit integrating voltage charged in the buffer capacitor to generate output voltage of which a voltage level is changed twice during the first period; and an amplifying unit differentially amplifying non-inverted output voltage and inverted output voltage of the second integrating circuit unit, wherein the amplifying unit amplifies voltage corresponding to a difference between the non-inverted output voltage and the inverted output voltage during a reset section of the second integrating circuit unit to generate offset information.
摘要翻译： 电容感测装置包括：驱动电路单元，将第一周期的驱动信号施加到节点电容器; 第一积分电路单元，积分在节点电容器中充电的电压，以产生在第二时段期间电压电平改变两次的输出电压; 由第一积分电路单元的输出电压充电或放电的缓冲电容器; 第二积分电路单元，积分在所述缓冲电容器中充电的电压，以产生在所述第一时段期间电压电平改变两次的输出电压; 以及放大单元，对所述第二积分电路单元的非反相输出电压和反相输出电压进行差分放大，其中，所述放大单元在所述第二积分电路单元的复位部分放大对应于所述非反相输出电压和所述反相输出电压之间的差的电压 第二积分电路单元产生偏移信息。
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公开(公告)号：US20140184557A1
公开(公告)日：2014-07-03
申请号：US13800463
申请日：2013-03-13
发明人： Moon Suk JEONG , Byeong Hak JO , Yong II KWON , Tah Joon PARK
IPC分类号： G06F3/044
CPC分类号： G06F3/044 , G06F3/0418
摘要： There is provided a touch sensing apparatus including: a panel unit including a plurality of driving electrodes and a plurality of sensing electrodes; a driving circuit unit applying one of a driving signal and a scanning signal having a frequency different from that of the driving signal, to each of the plurality of driving electrodes; a sensing circuit unit measuring a change in capacitance of a plurality of node capacitors generated in intersections of the plurality of driving electrodes and the plurality of sensing electrodes; and a calculation unit determining a touch based on a change in the capacitance, wherein when the scanning signal is applied to the plurality of driving electrodes, the calculation unit calculates capacitance deviations in the plurality of node capacitors from the deviations of changes in the capacitance generated by the plurality of node capacitors.
摘要翻译： 提供了一种触摸感测装置，包括：面板单元，包括多个驱动电极和多个感测电极; 驱动电路单元，将驱动信号和与驱动信号的频率不同的扫描信号中的一个施加到多个驱动电极中的每一个; 感测电路单元，测量在所述多个驱动电极和所述多个感测电极的交叉点中产生的多个节点电容器的电容变化; 以及计算单元，基于电容的变化来确定触摸，其中当扫描信号被施加到多个驱动电极时，计算单元从产生的电容的变化的偏差来计算多个节点电容器中的电容偏差 由多个节点电容器组成。
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公开(公告)号：US20140160038A1
公开(公告)日：2014-06-12
申请号：US13772503
申请日：2013-02-21
发明人： Hyun Suk LEE , Byeong Hak JO , Tah Joon PARK , Kang Joo KIM
IPC分类号： G06F3/041
CPC分类号： G06F3/044 , G06F3/0418
摘要： There are provided a touch sensing method and a touch sensing apparatus. The touch sensing method includes calibrating an offset value; obtaining sensed data from a panel unit, performing a difference operation on the sensed data and the offset value to calculate valid data, when the valid data is higher than a first threshold value, calculating a correlation value between the valid data and reference data, and comparing the correlation value with a second threshold value to determine whether to update the offset value and whether to filter the valid data.
摘要翻译： 提供了触摸感测方法和触摸感测装置。 触摸感测方法包括校正偏移值; 当有效数据高于第一阈值时，计算有效数据和参考数据之间的相关值，从而获取来自面板单元的感测数据，对感测数据执行差异运算和偏移值以计算有效数据，以及 将相关值与第二阈值进行比较，以确定是否更新偏移值以及是否过滤有效数据。
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