公开(公告)号：US07015756B1

公开(公告)日：2006-03-21

申请号：US11189464

申请日：2005-07-26

申请人： Swee-Ann Teo

发明人： Swee-Ann Teo

IPC分类号： H03F3/45 ,  H03F3/26

CPC分类号： H03F3/26 ,  H03F3/45089 ,  H03F3/45103 ,  H03F2203/45118 ,  H03F2203/45318 ,  H03F2203/45512 ,  H03F2203/45546

摘要： A differential circuit comprises first, second, third and fourth devices that have first, second, third and fourth control terminals, respectively. The second and fourth devices are arranged in series with the first and third devices, respectively. A first output communicates with the first device and the second device. A second output communicates with the third device and the fourth device. First and second inputs communicate with the first and fourth control terminals, respectively. The first, second, third and fourth devices are the same type of devices. The third and second control terminals follow the first and fourth control terminals. When the first device pushes, the third device pulls. When the first device pulls, the third device pushes. When the fourth device pushes, the second device pulls. When the fourth device pulls, the second device pushes. The second and third devices and the first and fourth devices are matched.

摘要翻译： 差分电路包括分别具有第一，第二，第三和第四控制端的第一，第二，第三和第四器件。 第二和第四装置分别与第一和第三装置串联布置。 第一输出与第一设备和第二设备通信。 第二输出与第三设备和第四设备通信。 第一和第二输入分别与第一和第四控制端相通。 第一，第二，第三和第四设备是相同类型的设备。 第三和第二控制终端遵循第一和第四控制端。 当第一个设备按下时，第三个设备拉。 当第一个设备拉动时，第三个设备按下。 当第四个设备按下时，第二个设备拉动。 当第四个设备拉动时，第二个设备按下。 第二和第三设备以及第一和第四设备匹配。

公开(公告)号：US07610022B1

公开(公告)日：2009-10-27

申请号：US10794563

申请日：2004-03-05

申请人： Swee-Ann Teo ,  King Chun Tsai ,  Sang Won Son

发明人： Swee-Ann Teo ,  King Chun Tsai ,  Sang Won Son

IPC分类号： H04B1/38

CPC分类号： H03H11/04 ,  H03H11/1291

摘要： Apparatus, systems, and methods implementing techniques for filtering signals are described. A filter circuit receives an input signal and produces a corresponding filtered signal. The filter circuit has a transfer function that relates the filtered signal to the input signal. The transfer function includes at least one pole and at least one zero, where at least one of the zeros corresponds to a first frequency, and at least one of the poles corresponds to a second frequency. The apparatus also includes a negative-transconductance circuit that is coupled to the filter circuit and that increases a magnitude of a component of the filtered signal that corresponds to the second frequency.

摘要翻译： 描述了实现滤波信号技术的装置，系统和方法。 滤波器电路接收输入信号并产生相应的滤波信号。 滤波器电路具有将滤波后的信号与输入信号相关联的传递函数。 传递函数包括至少一个极和至少一个零，其中至少一个零对应于第一频率，并且至少一个极对应于第二频率。 该装置还包括负跨导电路，其耦合到滤波器电路并且增加对应于第二频率的滤波信号的分量的幅度。

公开(公告)号：US07501907B1

公开(公告)日：2009-03-10

申请号：US11717576

申请日：2007-03-13

申请人： Swee-Ann Teo

发明人： Swee-Ann Teo

IPC分类号： H03B5/12 ,  H03L7/099

CPC分类号： H03L5/00 ,  H03B5/1215 ,  H03B5/1231 ,  H03B5/1243 ,  H03B2200/0062 ,  H03B2201/031 ,  H03B2201/033 ,  H03L7/099

摘要： A voltage-controlled oscillator (VCO) circuit includes first, second, third, and fourth transistors, wherein said third and fourth transistors bias the second and first transistors, respectively. First and second capacitances communicate with the first, second, third, and fourth transistors. A first input receives a first capacitance adjustment signal. At least one second input receives a second capacitance adjustment signal. The first capacitance has a first end connected to he first input and the third transistor. The second capacitance has a first end connected to the second input and the fourth transistor.

摘要翻译： 压控振荡器（VCO）电路包括第一，第二，第三和第四晶体管，其中所述第三和第四晶体管分别偏置第二和第一晶体管。 第一和第二电容与第一，第二，第三和第四晶体管通信。 第一输入端接收第一电容调整信号。 至少一个第二输入接收第二电容调整信号。 第一电容具有连接到第一输入端和第三晶体管的第一端。 第二电容具有连接到第二输入端和第四晶体管的第一端。

公开(公告)号：US08331884B1

公开(公告)日：2012-12-11

申请号：US12893604

申请日：2010-09-29

申请人： Swee-Ann Teo ,  Lawrence Tse ,  Yonghua Song

发明人： Swee-Ann Teo ,  Lawrence Tse ,  Yonghua Song

IPC分类号： H04B1/04 ,  H04B1/06

CPC分类号： H04B1/40 ,  H03G3/004

摘要： A voltage regulator for a radio frequency circuit including a master regulator circuit, a first slave regulator circuit, and a first radio frequency subcircuit. The master regulator circuit is configured to i) receive a reference voltage signal and a feedback signal and ii) output a control voltage signal based on the reference voltage signal and the feedback signal. The first slave regulator circuit is configured to i) receive the control voltage signal and ii) output a first regulated supply voltage signal based on the control voltage signal. The first radio frequency subcircuit is configured to receive the first regulated supply voltage signal. The control voltage signal corresponds to a desired supply voltage for the first radio frequency subcircuit.

摘要翻译： 一种用于射频电路的电压调节器，包括主调节器电路，第一从调节器电路和第一射频子电路。 主调节器电路被配置为i）接收参考电压信号和反馈信号，以及ii）基于参考电压信号和反馈信号输出控制电压信号。 第一从调节器电路被配置为i）接收控制电压信号，以及ii）基于控制电压信号输出第一稳压电源电压信号。 第一射频分支电路被配置为接收第一稳压电源电压信号。 控制电压信号对应于第一射频子电路的期望电源电压。

公开(公告)号：US07652515B1

公开(公告)日：2010-01-26

申请号：US10793359

申请日：2004-03-04

申请人： Swee-Ann Teo

发明人： Swee-Ann Teo

IPC分类号： H03K3/00

CPC分类号： G06F1/10 ,  H03F3/45179 ,  H04B15/02 ,  H04B2215/064

摘要： Apparatus, systems, and methods implementing techniques for converting clock signals are described. A voltage-based input clock signal is received and converted into a current-based clock signal. An electrical current of the current-based clock signal is varied in response to the input clock signal while a voltage of the current-based clock signal remains substantially constant.

摘要翻译： 描述实现用于转换时钟信号的技术的装置，系统和方法。 基于电压的输入时钟信号被接收并转换成基于电流的时钟信号。 基于电流的时钟信号的电流响应于输入时钟信号而变化，而基于电流的时钟信号的电压基本保持不变。

公开(公告)号：US07899422B1

公开(公告)日：2011-03-01

申请号：US11626829

申请日：2007-01-24

申请人： Swee-Ann Teo ,  Yonghua Song

发明人： Swee-Ann Teo ,  Yonghua Song

IPC分类号： H04B1/40

CPC分类号： H03L7/1976 ,  H03L7/081 ,  H03L7/0998

摘要： A sigma delta modulated phase lock loop reduces quantization noise by using phase interpolation to increase an effective frequency resolution of the dividing ratio of a divider.

摘要翻译： Σ-Δ调制锁相环通过使用相位插值来减小量化噪声，以增加分频器的分频比的有效频率分辨率。

公开(公告)号：US07809339B1

公开(公告)日：2010-10-05

申请号：US11715027

申请日：2007-03-07

申请人： Swee-Ann Teo ,  Lawrence Tse ,  Yonghua Song

发明人： Swee-Ann Teo ,  Lawrence Tse ,  Yonghua Song

IPC分类号： H04B1/04 ,  H04B7/00

CPC分类号： H04B1/40 ,  H03G3/004

摘要： A voltage regulator comprises a master regulator circuit that receives a reference signal and that generates a feedback signal and a master bias signal. The master bias signal is based on the reference signal and the feedback signal. N slave regulator circuits receive the master bias signal from the master regulator circuit and output N regulated output signals to N circuits, respectively, where N is an integer greater than one.

摘要翻译： 电压调节器包括接收参考信号并产生反馈信号和主偏置信号的主调节器电路。 主偏置信号基于参考信号和反馈信号。 N个从调节器电路从主调节器电路接收主偏置信号，并分别将N个调节输出信号输出到N个电路，其中N是大于1的整数。

公开(公告)号：US20080022324A1

公开(公告)日：2008-01-24

申请号：US11458391

申请日：2006-07-19

申请人： Howard Yang ,  Stephen Tai ,  Xiaopeng Chen ,  Xiaomin Si ,  Larry Wu ,  Gang Shan ,  Swee-Ann Teo ,  Eric Tsang

发明人： Howard Yang ,  Stephen Tai ,  Xiaopeng Chen ,  Xiaomin Si ,  Larry Wu ,  Gang Shan ,  Swee-Ann Teo ,  Eric Tsang

IPC分类号： H04N7/18

CPC分类号： H04L12/2838 ,  H04L2012/2841 ,  H04L2012/2849 ,  H04N7/1675 ,  H04N21/4122 ,  H04N21/41407 ,  H04N21/4143 ,  H04N21/43615 ,  H04N21/43637

摘要： In one embodiment, a personal television broadcasting system includes one or more television receivers; and a television signal transmitter coupled to one of: a personal computer, a set top box, a game console, and a portable video player to broadcast video content to the one or more television receivers that are limited within a range of a personal area. In one embodiment, a television signal transmitter is integrated with one of: a personal computer, a set top box, a game console, and a portable video player.

摘要翻译： 在一个实施例中，个人电视广播系统包括一个或多个电视接收机; 以及耦合到个人计算机，机顶盒，游戏机和便携式视频播放器中的一个的电视信号发射器，用于向限制在个人区域范围内的一个或多个电视接收机广播视频内容。 在一个实施例中，电视信号发射器与个人计算机，机顶盒，游戏机和便携式视频播放器之一集成。

公开(公告)号：US07190936B1

公开(公告)日：2007-03-13

申请号：US10747522

申请日：2003-12-29

申请人： Swee-Ann Teo ,  Lawrence Tse ,  Yonghua Song

发明人： Swee-Ann Teo ,  Lawrence Tse ,  Yonghua Song

IPC分类号： H04B1/04 ,  H04B1/06

CPC分类号： H04B1/40 ,  H03G3/004

摘要： A voltage regulator includes a master regulator circuit that receives a reference signal, that generates a master bias signal and that includes a transistor having a first gain. A first slave regulator circuit includes a first transistor having a second gain that is substantially equal to unity gain, a control terminal that receives the master bias signal from the master regulator circuit, a first terminal and a second terminal that outputs a first regulated output signal. A second slave regulator circuit includes a second transistor having a second gain that is substantially equal to unity gain, a control terminal that receives the master bias signal from the master regulator circuit, a first terminal, and a second terminal that outputs a second regulated output signal.

摘要翻译： 电压调节器包括主调节器电路，其接收产生主偏置信号并且包括具有第一增益的晶体管的参考信号。 第一从调节器电路包括具有基本上等于单位增益的第二增益的第一晶体管，从主调节器电路接收主偏置信号的控制端，输出第一调节输出信号的第一端和第二端， 。 第二从调节器电路包括具有基本上等于单位增益的第二增益的第二晶体管，从主调节器电路接收主偏置信号的控制端，第一端和输出第二调节输出的第二端 信号。

公开(公告)号：US07365582B1

公开(公告)日：2008-04-29

申请号：US10747520

申请日：2003-12-29

申请人： Swee-Ann Teo ,  Lawrence Tse

发明人： Swee-Ann Teo ,  Lawrence Tse

IPC分类号： H03L7/06

CPC分类号： H03L7/0896 ,  H03L7/18

摘要： A charge pump includes first and second pairs of differential transistors. Each transistor includes control, first, and second terminals. First and second charge pump drivers communicate with the control terminal of one of the first pair of differential transistors and one of the second pair of differential transistors, respectively. Third and fourth charge pump drivers communicate with the control terminal of the other of the first pair of differential transistors and the other of the second pair of differential transistors, respectively. The first through fourth charge pump drivers include respective pairs of differential transistors that receive control signals from respective control circuits.

摘要翻译： 电荷泵包括第一和第二对差分晶体管。 每个晶体管包括控制，第一和第二端子。 第一和第二电荷泵驱动器分别与第一对差分晶体管之一和第二对差分晶体管中的一个的控制端相通。 第三和第四电荷泵驱动器分别与第一对差分晶体管中的另一个和第二对差分晶体管中的另一个的控制端相通。 第一至第四电荷泵驱动器包括从各个控制电路接收控制信号的各对差分晶体管。