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公开(公告)号：US10416696B2
公开(公告)日：2019-09-17
申请号：US16191355
申请日：2018-11-14
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Tien-Yun Peng
Abstract: A power supply device includes an input terminal, a regulated voltage output terminal, a switch, a first transistor, and a current split circuit. The input terminal receives a first control voltage. The regulated voltage output terminal outputs an output voltage. The switch has a first terminal coupled to the input terminal, a second terminal, and a control terminal. The first transistor has a first terminal coupled to a voltage terminal, a second terminal coupled to the regulated voltage output terminal, and a control terminal coupled to the second terminal of the switch. The current split circuit is coupled to the voltage terminal and the regulated voltage output terminal. The current split circuit receives the first control voltage or a second control voltage, and includes a second transistor coupled between the voltage terminal and the regulated voltage output terminal.
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公开(公告)号：US10353421B2
公开(公告)日：2019-07-16
申请号：US15810148
申请日：2017-11-13
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Tien-Yun Peng
Abstract: A current mirror device includes an input end for receiving an input signal, an output end for outputting an amplified signal of the input signal, first through third transistors, and an operational amplifier. The first transistor includes a first end coupled to first reference current and a second end coupled to a bias voltage. The control end of the second transistor is coupled to the input end. The third transistor includes a first end coupled to the output end, a second end coupled to the first end of the second transistor and a control end coupled to a reference voltage. The operational amplifier is configured to keep a first voltage and a second voltage at substantially the same level, wherein the first voltage is obtained on the first end of the first transistor and the second voltage is obtained on the first end of the second transistor. Therefore, the reference current flowing through the first transistor can be accurately amplified to a desired value and mirrored to become load current flowing through the second transistor.
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公开(公告)号：US09438302B2
公开(公告)日：2016-09-06
申请号：US14636189
申请日：2015-03-03
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen
CPC classification number: H04B1/44 , H04B1/525 , H04W52/0274 , Y02D70/40
Abstract: A radio frequency (RF) switching module and a control method of the RF switching module are described. The RF switching module has 2 switches, and the control method includes starting to turn off a first switch of the RF switching module, starting to turn on a second switch of the RF switching module after the first switch is turned off for a first predetermined time, wherein starting to turn off the first switch and starting to turn on the second switch is finished during a transition period from a first mode to a second mode.
Abstract translation: 描述射频（RF）切换模块和RF切换模块的控制方法。 RF开关模块具有2个开关，控制方法包括开始关闭RF开关模块的第一开关，在第一开关断开第一预定时间之后开始接通RF开关模块的第二开关 其中开始关闭第一开关并开始接通第二开关，在从第一模式到第二模式的转变期间结束。
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44.发明授权公开(公告)号：US09231578B2
公开(公告)日：2016-01-05
申请号：US13345022
申请日：2012-01-06
Applicant: Chen Chih-Sheng
Inventor： Chen Chih-Sheng
IPC: H03K17/687 , H03K17/60 , G11C5/14 , H03K17/00 , H03K17/693
CPC classification number: H03K17/007 , H03K17/693
Abstract: An auxiliary voltage generating unit for a radio frequency switch includes a first input and a second input respectively configured to receive a first control signal and a second control signal, wherein the first control signal and the second control signal are configured to control which one of a plurality of paths in the radio frequency switch is enabled, and at least one output, configured to output an auxiliary voltage, derived from at least one of the first control signal or the second control signal, that is used to operate the radio frequency switch. The auxiliary voltage may be a bias voltage and/or a voltage used to power an inverter used to enable a selected branch as an isolation branch or shunt branch.
Abstract translation: 一种用于无线电频率开关的辅助电压产生单元包括分别被配置为接收第一控制信号和第二控制信号的第一输入端和第二输入端，其中第一控制信号和第二控制信号被配置为控制第一控制信号和第二控制信号中的哪一个 射频切换中的多个路径被使能，并且至少一个输出被配置为输出从用于操作射频开关的第一控制信号或第二控制信号中的至少一个导出的辅助电压。 辅助电压可以是用于给逆变器供电的偏压和/或电压，所述逆变器用于使所选择的分支作为隔离分支或分流支路。
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公开(公告)号：US09088252B2
公开(公告)日：2015-07-21
申请号：US14197220
申请日：2014-03-05
Applicant: RichWave Technology Corp.
Inventor： Chih-Sheng Chen , Chuan-Jane Chao
CPC classification number: H03F3/45085
Abstract: A fixed voltage generating circuit includes a current mirror, a differential pair, and a resistor coupled to the current mirror. A node of the resistor is coupled to a voltage source. The differential pair includes two resistors coupled to the voltage source to enable the differential pair outputting a stable output voltage.
Abstract translation: 固定电压产生电路包括电流镜，差分对和耦合到电流镜的电阻。 电阻器的节点耦合到电压源。 差分对包括耦合到电压源的两个电阻器，以使差分对输出稳定的输出电压。
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Patent Agency Ranking
公开(公告)号：US20140253087A1
公开(公告)日：2014-09-11
申请号：US13865205
申请日：2013-04-18
Applicant: RICHWAVE TECHNOLOGY CORP.
Inventor： Chih-Sheng Chen
IPC: G05F3/16
CPC classification number: G05F3/16 , H03F3/45085 , H03F2203/45244 , H03F2203/45392 , H03F2203/45508
Abstract: A fixed voltage generating circuit includes a current mirror, a differential pair, and a resistor coupled to the current mirror. A node of the resistor is coupled to a voltage source. The differential pair includes two resistors coupled to the voltage source for enabling the differential pair to output a fixed voltage.
Abstract translation: 固定电压产生电路包括电流镜，差分对和耦合到电流镜的电阻。 电阻器的节点耦合到电压源。 差分对包括耦合到电压源的两个电阻器，用于使差分对能够输出固定电压。
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公开(公告)号：US08798171B2
公开(公告)日：2014-08-05
申请号：US12824498
申请日：2010-06-28
Applicant: Chein-I Chang , Han-Jieh Chang , Yang-Lang Chang
Inventor： Chein-I Chang , Han-Jieh Chang , Yang-Lang Chang
CPC classification number: H04N19/59 , H04N19/132 , H04N19/172 , H04N19/182 , H04N19/186 , H04N19/30 , H04N19/587
Abstract: Techniques are provided herein for receiving at a video processing device color video frames comprising grayscale components and color components. The grayscale components corresponding to each of the color video frames are extracted as each of the color video frames is received to obtain grayscale video frames. The grayscale video frames are transmitted at a first transmission rate. Color components for selected color video frames are periodically fused with selected grayscale video frames to obtain fused color video frames, and the fused color video frames are transmitted at a second transmission rate interspersed with the grayscale video frames transmitted at the first transmission rate.
Abstract translation: 本文提供了用于在视频处理设备处接收包括灰度分量和颜色分量的彩色视频帧的技术。 随着每个彩色视频帧被接收以获得灰度视频帧，提取对应于每个彩色视频帧的灰度分量。 以第一传输速率发送灰度视频帧。 所选择的彩色视频帧的颜色分量与所选择的灰度视频帧周期性地融合，以获得融合的彩色视频帧，并且融合的彩色视频帧以散布有以第一传输速率传输的灰度视频帧的第二传输速率传输。
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公开(公告)号：US20140062577A1
公开(公告)日：2014-03-06
申请号：US13597623
申请日：2012-08-29
Applicant: Chen Chih-Sheng
Inventor： Chen Chih-Sheng
IPC: H03K17/687
CPC classification number: H03K17/693
Abstract: A radio frequency (RF) switch includes a common port, a first port, and a second port, a first semiconductor switching element disposed in a first RF pathway between the common port and the first port, a second semiconductor switching element disposed in a second RF pathway between the common port and the second port, a first pair of direct current (DC) blocking capacitors disposed to isolate the first semiconductor switching element in the first RF pathway, and a second pair of DC blocking capacitors disposed to isolate the second semiconductor switching element in the second RF pathway. The respective pairs of DC blocking capacitors allow for different bias voltages to be applied to the respective RF pathways. A charge-discharge circuit may also be employed to decrease transient switching time of the RF switch.
Abstract translation: 射频（RF）开关包括公共端口，第一端口和第二端口，设置在公共端口和第一端口之间的第一RF路径中的第一半导体开关元件，设置在第二端口中的第二半导体开关元件 公共端口和第二端口之间的RF路径，被设置为隔离第一RF路径中的第一半导体开关元件的第一对直流（DC）阻塞电容器和设置成隔离第二半导体的第二对隔离电容器 开关元件在第二RF通路中。 各对隔直电容器允许将不同的偏置电压施加到相应的RF通路。 也可以采用充放电电路来减少RF开关的瞬时切换时间。
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公开(公告)号：US20140049312A1
公开(公告)日：2014-02-20
申请号：US13588197
申请日：2012-08-17
Applicant: Chen Chih-Sheng
Inventor： Chen Chih-Sheng
IPC: H03K17/687
CPC classification number: H03K17/693 , H03K2017/066 , H03K2217/0054 , H04B1/006 , H04B1/48
Abstract: A radio frequency (RF) switch including a common port, a first port, a second port, a first RF pathway extending between the common port and the first port, a second RF pathway extending between the common port and the second port, a first shunt path extending between the first RF pathway and ground, a second shunt path extending between the second RF pathway and ground, and a respective semiconductor switching element disposed in each of the first RF pathway, the second RF pathway, the first shunt path and the second shunt path configured to control whether the given RF pathway or shunt path is enabled or disabled at a given time, wherein a selected combination of conductivity types and control signals for the respective semiconductor switching elements are employed.
Abstract translation: 一种射频（RF）开关，包括公共端口，第一端口，第二端口，在公共端口和第一端口之间延伸的第一RF路径，在公共端口和第二端口之间延伸的第二RF路径，第一 在第一RF路径和地之间延伸的分流路径，在第二RF路径和地之间延伸的第二分路，以及设置在第一RF路径，第二RF路径，第一分路路径和第二RF路径中的每一个中的相应半导体开关元件 第二分流路径，被配置为控制给定的RF通路或并联路径是否在给定时间被使能或禁用，其中采用用于各个半导体开关元件的选择的导电类型和控制信号的组合。
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公开(公告)号：US08497727B2
公开(公告)日：2013-07-30
申请号：US13185865
申请日：2011-07-19
Applicant: Jui-Chieh Chiu , Chih-Wei Chen
Inventor： Jui-Chieh Chiu , Chih-Wei Chen
IPC: H03K17/00
CPC classification number: H03K17/693
Abstract: A double pole double throw switch device is provided. The device includes a first path circuit, a second path circuit, a third path circuit and a fourth path circuit. The first terminals of the first and second path circuits are coupled to a first port, and the second terminals of the first and second path circuits are respectively coupled to a third port and a fourth port. The first terminals of the third and fourth path circuits are coupled to a fourth port, and the second terminals of the third and fourth path circuits are respectively coupled to the second port and the third port. Each path circuit includes a switch module and a functional switch circuit. When a switch module is turned on, its corresponding functional switch circuit is turned off, and when the switch module is turned off, its corresponding functional switch circuit is turned on.
Abstract translation: 提供双极双掷开关装置。 该装置包括第一路径电路，第二路径电路，第三路径电路和第四路径电路。 第一和第二路径电路的第一端子耦合到第一端口，并且第一和第二路径电路的第二端子分别耦合到第三端口和第四端口。 第三和第四路径电路的第一端子耦合到第四端口，第三和第四路径电路的第二端子分别耦合到第二端口和第三端口。 每个路径电路包括开关模块和功能开关电路。 当开关模块接通时，其相应的功能开关电路关闭，当开关模块关闭时，其相应的功能开关电路接通。
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