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公开(公告)号：US07756486B1
公开(公告)日：2010-07-13
申请号：US11544163
申请日：2006-10-05
Applicant: Chun-Geik Tan , Randy Tsang , Wayne A. Loeb
Inventor： Chun-Geik Tan , Randy Tsang , Wayne A. Loeb
IPC: H04B1/38
CPC classification number: H04B1/525
Abstract: Circuits, methods, and apparatus that provide isolation between receive and transmit circuits in a wireless transceiver. One example provides switches that can be included on an integrated circuit with at least portions of a wireless transceiver. These switches vary the impedance of transmitter and receiver circuits between a termination impedance and a high impedance by inserting or removing components in parallel with matching networks. Signal losses are minimized since these switches are shunt connected to input and output paths on the wireless circuit and are not connected directly in either signal path.
Abstract translation: 在无线收发器中提供接收和发送电路之间隔离的电路，方法和装置。 一个示例提供可以包括在具有无线收发器的至少一部分的集成电路上的开关。 这些开关通过与匹配网络并联插入或删除组件来改变发射器和接收器电路在终端阻抗和高阻抗之间的阻抗。 信号损耗最小化，因为这些开关分流连接到无线电路上的输入和输出路径，并且不直接连接在任一信号路径中。
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公开(公告)号：US08442451B1
公开(公告)日：2013-05-14
申请号：US12827449
申请日：2010-06-30
Applicant: Chun-Geik Tan , Randy Tsang , Wayne A. Loeb
Inventor： Chun-Geik Tan , Randy Tsang , Wayne A. Loeb
IPC: H04B1/38
CPC classification number: H04B1/525
Abstract: Circuits, methods, and apparatus that provide isolation between receive and transmit circuits in a wireless transceiver. One example provides switches that can be included on an integrated circuit with at least portions of a wireless transceiver. These switches vary the impedance of transmitter and receiver circuits between a termination impedance and a high impedance by inserting or removing components in parallel with matching networks. Signal losses are minimized since these switches are shunt connected to input and output paths on the wireless circuit and are not connected directly in either signal path.
Abstract translation: 在无线收发器中提供接收和发送电路之间隔离的电路，方法和装置。 一个示例提供可以包括在具有无线收发器的至少一部分的集成电路上的开关。 这些开关通过与匹配网络并联插入或删除组件来改变发射器和接收器电路在终端阻抗和高阻抗之间的阻抗。 信号损耗最小化，因为这些开关分流连接到无线电路上的输入和输出路径，并且不直接连接在任一信号路径中。
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公开(公告)号：US08319547B1
公开(公告)日：2012-11-27
申请号：US12694922
申请日：2010-01-27
Applicant: Chun-Geik Tan , Randy Tsang , Yonghua Song
Inventor： Chun-Geik Tan , Randy Tsang , Yonghua Song
IPC: G05F1/10
Abstract: A system and method for voltage controlled oscillator (VCO) biasing in low voltage circuits including low resistance elements that are especially susceptible to noise. In one embodiment, a poly resistor and triode resistor is used to cancel or offset the effects that temperature variations have on the circuit. The triode resistor is powered by a voltage source that uses a pair of diodes coupled to a constant transconductance (gm) circuit to generate a reduced noise voltage that is independent of the power supply noise. The size of the triode resistor and poly resistors can be varied.
Abstract translation: 一种用于低压电路中的压控振荡器（VCO）偏置的系统和方法，包括特别容易受噪声影响的低电阻元件。 在一个实施例中，使用多电阻和三极管电阻来消除或抵消温度变化对电路的影响。 三极管电阻由电压源供电，该电压源使用耦合到恒定跨导（gm）电路的一对二极管来产生独立于电源噪声的降低的噪声电压。 三极管电阻和多个电阻的大小可以变化。
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Patent Agency Ranking
公开(公告)号：US07667533B1
公开(公告)日：2010-02-23
申请号：US11586393
申请日：2006-10-24
Applicant: Chun-Geik Tan , Randy Tsang , Yonghua Song
Inventor： Chun-Geik Tan , Randy Tsang , Yonghua Song
IPC: G05F1/10
Abstract: A system and method for voltage controlled oscillator (VCO) biasing in low voltage circuits including low resistance elements that are especially susceptible to noise. In one embodiment, a poly resistor and triode resistor is used to cancel or offset the effects that temperature variations have on the circuit. The triode resistor is powered by a voltage source that uses a pair of diodes coupled to a constant transconductance (gm) circuit to generate a reduced noise voltage that is independent of the power supply noise. The size of the triode resistor and poly resistors can be varied.
Abstract translation: 一种低压电路中压控振荡器（VCO）偏置的系统和方法，包括特别容易受噪声影响的低电阻元件。 在一个实施例中，使用多电阻和三极管电阻来消除或抵消温度变化对电路的影响。 三极管电阻由电压源供电，该电压源使用耦合到恒定跨导（gm）电路的一对二极管来产生独立于电源噪声的降低的噪声电压。 三极管电阻和多个电阻的大小可以变化。
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公开(公告)号：US20130034190A1
公开(公告)日：2013-02-07
申请号：US13309908
申请日：2011-12-02
Applicant: Chun-Geik Tan , Wei-Min Shu , Chi-Hsueh Wang
Inventor： Chun-Geik Tan , Wei-Min Shu , Chi-Hsueh Wang
IPC: H04L27/00
CPC classification number: H04B1/0075
Abstract: Wireless receiver for receiving a plurality of co-existing wireless signals respectively from different positioning systems, includes an analog frontend and an analog-to-digital converting unit. The analog frontend is arranged to convert bands of the co-existing wireless signals into a plurality of corresponding intermediate bands by a local frequency and to provide an intermediate signal including the intermediate bands. The analog-to-digital converting unit is coupled to the analog frontend, and is arranged to convert the intermediate signal to a digital signal, wherein an operation band of the analog-to-digital converting unit covers the plurality of intermediate bands.
Abstract translation: 分别从不同的定位系统接收多个共存的无线信号的无线接收机包括模拟前端和模数转换单元。 模拟前端被布置为通过本地频率将共存的无线信号的频带转换成多个对应的中间频带，并提供包括中间频带的中间信号。 模数转换单元耦合到模拟前端，并且被布置为将中间信号转换为数字信号，其中模数转换单元的工作频带覆盖多个中间频带。
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公开(公告)号：US08503960B2
公开(公告)日：2013-08-06
申请号：US13289510
申请日：2011-11-04
Applicant: Fei Song , Chun-Geik Tan
Inventor： Fei Song , Chun-Geik Tan
CPC classification number: H03F3/45475 , H03F3/195 , H03F2200/294 , H03F2203/45526 , H03F2203/7236 , H03G1/0029
Abstract: An amplifier receives an input signal with an input node, provides an output signal in response, and includes a main branch and an auxiliary branch. The auxiliary branch is coupled between the input node and a splitting node for input matching of the input node. The main branch, also coupled to the splitting node, has an output node of current mode, and is arranged to output the output signal at the output node. An associated receiver is also disclosed.
Abstract translation: 放大器接收具有输入节点的输入信号，提供响应的输出信号，并且包括主分支和辅助分支。 辅助分支耦合在输入节点和分割节点之间，用于输入节点的输入匹配。 主分支也耦合到分离节点，具有当前模式的输出节点，并且被布置成在输出节点处输出输出信号。 还公开了一种相关的接收机。
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公开(公告)号：US20130029627A1
公开(公告)日：2013-01-31
申请号：US13289510
申请日：2011-11-04
Applicant: Fei Song , Chun-Geik Tan
Inventor： Fei Song , Chun-Geik Tan
CPC classification number: H03F3/45475 , H03F3/195 , H03F2200/294 , H03F2203/45526 , H03F2203/7236 , H03G1/0029
Abstract: An amplifier receives an input signal with an input node, provides an output signal in response, and includes a main branch and an auxiliary branch. The auxiliary branch is coupled between the input node and a splitting node for input matching of the input node. The main branch, also coupled to the splitting node, has an output node of current mode, and is arranged to output the output signal at the output node. An associated receiver is also disclosed.
Abstract translation: 放大器接收具有输入节点的输入信号，提供响应的输出信号，并且包括主分支和辅助分支。 辅助分支耦合在输入节点和分割节点之间，用于输入节点的输入匹配。 主分支也耦合到分离节点，具有当前模式的输出节点，并且被布置成在输出节点处输出输出信号。 还公开了一种相关的接收机。
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8.发明授权公开(公告)号：US08582693B2
公开(公告)日：2013-11-12
申请号：US13309908
申请日：2011-12-02
Applicant: Chun-Geik Tan , Wei-Min Shu , Chi-Hsueh Wang
Inventor： Chun-Geik Tan , Wei-Min Shu , Chi-Hsueh Wang
CPC classification number: H04B1/0075
Abstract: Wireless receiver for receiving a plurality of co-existing wireless signals respectively from different positioning systems, includes an analog frontend and an analog-to-digital converting unit. The analog frontend is arranged to convert bands of the co-existing wireless signals into a plurality of corresponding intermediate bands by a local frequency and to provide an intermediate signal including the intermediate bands. The analog-to-digital converting unit is coupled to the analog frontend, and is arranged to convert the intermediate signal to a digital signal, wherein an operation band of the analog-to-digital converting unit covers the plurality of intermediate bands.
Abstract translation: 分别从不同的定位系统接收多个共存的无线信号的无线接收机包括模拟前端和模数转换单元。 模拟前端被布置为通过本地频率将共存的无线信号的频带转换成多个对应的中间频带，并提供包括中间频带的中间信号。 模数转换单元耦合到模拟前端，并且被布置为将中间信号转换为数字信号，其中模数转换单元的工作频带覆盖多个中间频带。
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