公开(公告)号：US07548129B2

公开(公告)日：2009-06-16

申请号：US11552139

申请日：2006-10-23

申请人： Wai Lau ,  Chao-Wen Tseng ,  Wei-Chien Chiu ,  Ying-Chi Chen

发明人： Wai Lau ,  Chao-Wen Tseng ,  Wei-Chien Chiu ,  Ying-Chi Chen

IPC分类号： H03K3/02 ,  H04B1/10

CPC分类号： H03H11/1291 ,  H03H7/0153 ,  H03H2210/043 ,  H03K3/0231 ,  H03K3/02337

摘要： An integrated tuner includes circuitry to receive a television signal, a quadrature mixer coupled to the output of the circuitry, a polyphase filter coupled to the output of the quadrature mixer, a relaxation oscillator, and a digital calibration module. The relaxation oscillator generates a clock having a period that is directly proportional to the on-chip RC time constant. The clock is fed into a counter of the digital calibration module. The counter is started and stopped at predefined time intervals by a finite state machine. The finite state machine updates the calibration code based on a successive approximation algorithm according to the end count results received from the counter. The digital calibration module outputs the updated calibration code to the polyphase filter and to the relaxation oscillator.

摘要翻译： 集成调谐器包括接收电视信号的电路，耦合到电路的输出的正交混频器，耦合到正交混频器的输出的多相滤波器，张弛振荡器和数字校准模块。 张弛振荡器产生具有与片上RC时间常数成正比的周期的时钟。 时钟被馈送到数字校准模块的计数器。 计数器由有限状态机以预定义的时间间隔启动和停止。 有限状态机根据从计数器接收的结束计数结果，基于逐次逼近算法来更新校准码。 数字校准模块将更新的校准代码输出到多相滤波器和张弛振荡器。

公开(公告)号：US20070109063A1

公开(公告)日：2007-05-17

申请号：US11552139

申请日：2006-10-23

申请人： Wai Lau ,  Chao-Wen Tseng ,  Wei-Chien Chiu ,  Ying-Chi Chen

发明人： Wai Lau ,  Chao-Wen Tseng ,  Wei-Chien Chiu ,  Ying-Chi Chen

IPC分类号： H03K3/26

CPC分类号： H03H11/1291 ,  H03H7/0153 ,  H03H2210/043 ,  H03K3/0231 ,  H03K3/02337

摘要： An integrated tuner includes circuitry to receive a television signal, a quadrature mixer coupled to the output of the circuitry, a polyphase filter coupled to the output of the quadrature mixer, a relaxation oscillator, and a digital calibration module. The relaxation oscillator generates a clock having a period that is directly proportional to the on-chip RC time constant. The clock is fed into a counter of the digital calibration module. The counter is started and stopped at predefined time intervals by a finite state machine. The finite state machine updates the calibration code based on a successive approximation algorithm according to the end count results received from the counter. The digital calibration module outputs the updated calibration code to the polyphase filter and to the relaxation oscillator.

摘要翻译： 集成调谐器包括接收电视信号的电路，耦合到电路的输出的正交混频器，耦合到正交混频器的输出的多相滤波器，张弛振荡器和数字校准模块。 张弛振荡器产生具有与片上RC时间常数成正比的周期的时钟。 时钟被馈送到数字校准模块的计数器。 计数器由有限状态机以预定义的时间间隔启动和停止。 有限状态机根据从计数器接收的结束计数结果，基于逐次逼近算法来更新校准码。 数字校准模块将更新的校准代码输出到多相滤波器和张弛振荡器。

公开(公告)号：US20060274215A1

公开(公告)日：2006-12-07

申请号：US11160031

申请日：2005-06-06

申请人： Chao-Wen Tseng ,  Wai Lau

发明人： Chao-Wen Tseng ,  Wai Lau

IPC分类号： H04N5/50

CPC分类号： H03D7/14 ,  H03D2200/0086 ,  H03J1/005

摘要： A single-conversion integrated circuit TV tuner includes a first filter coupled to an RF signal input, and a harmonic rejection mixer connected to a real output of the first filter. The harmonic rejection mixer has complex output. The TV tuner further includes a polyphase filter having complex input connected to the complex output of the harmonic rejection mixer. Only a real signal is passed from the first filter to the harmonic rejection mixer.

摘要翻译： 单转换集成电路TV调谐器包括耦合到RF信号输入的第一滤波器和连接到第一滤波器的实际输出的谐波抑制混频器。 谐波抑制混频器具有复杂的输出。 TV调谐器还包括具有连接到谐波抑制混频器的复合输出的复合输入的多相滤波器。 只有一个真实信号从第一个滤波器传递到谐波抑制混频器。

公开(公告)号：US20070105514A1

公开(公告)日：2007-05-10

申请号：US11423455

申请日：2006-06-12

申请人： Chao-Wen Tseng ,  Wai Lau

发明人： Chao-Wen Tseng ,  Wai Lau

IPC分类号： H04B1/18

CPC分类号： H03J3/06 ,  H03F1/0277 ,  H03F2200/294 ,  H03F2200/372 ,  H03G1/0088 ,  H04B1/16

摘要： A TV tuner includes a plurality of amplifiers having inputs for coupling to an antenna, a plurality of filters having inputs coupled to outputs of the plurality of amplifiers, and a first multiplexer having inputs coupled to outputs of the plurality of filters, the first multiplexer for selecting an output of one of the filters. The TV tuner further includes a mixer having an input coupled to an output of the first multiplexer, and an output amplifier having an input coupled to an output of the mixer and an output for providing output of the TV tuner.

摘要翻译： 电视调谐器包括具有用于耦合到天线的输入的多个放大器，具有耦合到多个放大器的输出的输入的多个滤波器和具有耦合到多个滤波器的输出的输入的第一多路复用器，第一多路复用器 选择其中一个过滤器的输出。 TV调谐器还包括具有耦合到第一多路复用器的输出的输入的混频器，以及输出耦合到混频器的输出的输出端和用于提供TV调谐器的输出的输出。