-
1.发明授权Digital-to-analog conversion apparatus for generating combined analog output by combining analog outputs derived from using different sampling clocks and related method thereof 有权数模转换装置，用于通过组合使用不同采样时钟导出的模拟输出及其相关方法来产生组合模拟输出公开(公告)号：US09385741B2
公开(公告)日：2016-07-05
申请号：US14538814
申请日：2014-11-12
Applicant: MEDIATEK INC.
Inventor： Chih-Jung Chen
CPC classification number: H03M1/66 , H03M1/0626 , H03M1/662
Abstract: A digital-to-analog conversion apparatus has a first digital-to-analog converter, at least one second digital-to-analog converter, and a combining circuit. The first digital-to-analog converter is arranged to receive a first sampling clock and a digital input, and convert the digital input into a first analog output according to the first sampling clock. The at least one second digital-to-analog converter is arranged to receive the digital input and at least one second sampling clock different from the first sampling clock, and convert the digital input into at least one second analog output according to the at least one second sampling clock. The combining circuit is arranged to combine the first analog output and the at least one second analog output into a combined analog output of the digital input.
Abstract translation: 数模转换装置具有第一数模转换器，至少一个第二数模转换器和组合电路。 第一数模转换器被布置成接收第一采样时钟和数字输入，并且根据第一采样时钟将数字输入转换成第一模拟输出。 所述至少一个第二数模转换器被布置成接收数字输入和与第一采样时钟不同的至少一个第二采样时钟，并且根据至少一个数字输入和数字输入将数字输入转换成至少一个第二模拟输出 第二采样时钟。 组合电路被布置成将第一模拟输出和至少一个第二模拟输出组合成数字输入的组合模拟输出。
-
公开(公告)号：US09172408B2
公开(公告)日：2015-10-27
申请号：US14037329
申请日：2013-09-25
Applicant: MEDIATEK INC.
Inventor： Hsiang-Hui Chang , Li-Shin Lai , Chih-Jung Chen , Chih-Hao Sun
CPC classification number: H04B1/0475 , H04B1/0483 , H04L27/04
Abstract: A transmitter includes a first channel and a second channel. The first channel includes a first mixer, and is used for processing a first input signal to generate a first output signal; the second channel includes a second mixer, where the second channel does not receive any input signal. When the transmitter is operated under a first mode, both the first mixer and the second mixer receive oscillation signals.
Abstract translation: 发射机包括第一信道和第二信道。 第一通道包括第一混频器，用于处理第一输入信号以产生第一输出信号; 第二通道包括第二混频器，其中第二通道不接收任何输入信号。 当发射机在第一模式下操作时，第一混频器和第二混频器都接收振荡信号。
-
3.发明申请DIGITAL-TO-ANALOG CONVERSION APPARATUS FOR GENERATING COMBINED ANALOG OUTPUT BY COMBINING ANALOG OUTPUTS DERIVED FROM USING DIFFERENT SAMPLING CLOCKS AND RELATED METHOD THEREOF 有权用于通过组合使用不同采样时钟的模拟输出产生组合模拟输出的数字到模拟转换装置及其相关方法公开(公告)号：US20160118996A1
公开(公告)日：2016-04-28
申请号：US14538814
申请日：2014-11-12
Applicant: MEDIATEK INC.
Inventor： Chih-Jung Chen
CPC classification number: H03M1/66 , H03M1/0626 , H03M1/662
Abstract: A digital-to-analog conversion apparatus has a first digital-to-analog converter, at least one second digital-to-analog converter, and a combining circuit. The first digital-to-analog converter is arranged to receive a first sampling clock and a digital input, and convert the digital input into a first analog output according to the first sampling clock. The at least one second digital-to-analog converter is arranged to receive the digital input and at least one second sampling clock different from the first sampling clock, and convert the digital input into at least one second analog output according to the at least one second sampling clock. The combining circuit is arranged to combine the first analog output and the at least one second analog output into a combined analog output of the digital input.
Abstract translation: 数模转换装置具有第一数模转换器，至少一个第二数模转换器和组合电路。 第一数模转换器被布置成接收第一采样时钟和数字输入，并且根据第一采样时钟将数字输入转换成第一模拟输出。 所述至少一个第二数模转换器被布置成接收数字输入和与第一采样时钟不同的至少一个第二采样时钟，并且根据至少一个数字输入和数字输入将数字输入转换成至少一个第二模拟输出 第二采样时钟。 组合电路被布置成将第一模拟输出和至少一个第二模拟输出组合成数字输入的组合模拟输出。
-
公开(公告)号：US20150303880A1
公开(公告)日：2015-10-22
申请号：US14259120
申请日：2014-04-22
Applicant: MEDIATEK INC.
Inventor： Tzu-Hsuin Peng , Chih-Hong Lou , Chao-Hsin Lu , Chi-Yun Wang , Chih-Jung Chen
CPC classification number: H03F1/26 , H03F3/45475 , H03F3/45479 , H03F3/45932 , H03F2200/129 , H03F2200/267 , H03F2203/45061 , H03F2203/45116 , H03F2203/45138 , H03F2203/45526 , H03H11/0405 , H03H11/1217 , H03H11/1234
Abstract: A low pass filter includes a first amplifier stage and a second amplifier stage. The first amplifier stage includes a differential operational amplifier, wherein the first amplifier stage is arranged to process a differential input signal to generate a differential intermediate signal, the differential input signal having a first input signal and a second input signal, and the differential intermediate signal having a first intermediate signal and a second intermediate signal. The second amplifier stage has no common-mode feedback and is arranged to process the differential intermediate signal to generate a differential output signal, wherein the differential output signal has a first output signal corresponding to the first input signal and a second output signal corresponding to the second input signal. Since the noisy common-mode feedback is removed from the second amplifier stage, the overall common-mode noise of the low pass filter can be decreased.
Abstract translation: 低通滤波器包括第一放大级和第二放大级。 第一放大器级包括差分运算放大器，其中第一放大器级被布置成处理差分输入信号以产生差分中间信号，差分输入信号具有第一输入信号和第二输入信号，以及差分中间信号 具有第一中间信号和第二中间信号。 第二放大器级没有共模反馈，并且被布置成处理差分中间信号以产生差分输出信号，其中差分输出信号具有对应于第一输入信号的第一输出信号和对应于第一输入信号的第二输出信号 第二输入信号。 由于从第二放大器级除去噪声共模反馈，所以可以降低低通滤波器的总体共模噪声。
-
5.发明申请TRANSMITTER HAVING INTEGRATED DESIGN OF MULTIPLE WIRELESS COMMUNICATION MODULES 有权具有多个无线通信模块集成设计的发射机公开(公告)号：US20150200693A1
公开(公告)日：2015-07-16
申请号：US14156308
申请日：2014-01-15
Applicant: MEDIATEK INC.
Inventor： Chao-Hsin Lu , Chih-Jung Chen
IPC: H04B1/04
CPC classification number: H04B1/0053
Abstract: A transmitter includes a first wireless communication module, a second wireless communication module, a multiplexer, a digital-to-analog converter and a filter. The multiplexer selectively outputs a first digital signal derived from a digital output of the first wireless communication module or a second digital signal derived from a digital output of the second wireless communication module as a selected output. The digital-to-analog converter converts the selected output into an analog signal. The filter processes the analog signal and includes an adjustable resistive element. When the multiplexer selects the first digital signal as the selected output, the adjustable resistive element is adjusted to have a first resistance value such that the filter has a first bandwidth. When the multiplexer selects the second digital signal as the selected output, the adjustable resistive element is adjusted to have a second resistance value such that the filter has a second bandwidth.
Abstract translation: 发射机包括第一无线通信模块，第二无线通信模块，复用器，数模转换器和滤波器。 复用器选择性地输出从第一无线通信模块的数字输出导出的第一数字信号或从第二无线通信模块的数字输出导出的第二数字信号作为选择的输出。 数模转换器将所选输出转换为模拟信号。 滤波器处理模拟信号并包括可调电阻元件。 当多路复用器选择第一数字信号作为所选择的输出时，可调电阻元件被调整为具有第一电阻值，使得滤波器具有第一带宽。 当多路复用器选择第二数字信号作为所选择的输出时，可调节电阻元件被调整为具有第二电阻值，使得滤波器具有第二带宽。
-
Patent Agency Ranking
6.发明申请DATA CONVERTING DEVICE, DIGITAL TRANSMITTING APPARATUS USING THE DATA CONVERTING DEVICE, AND RALATED DATA CONVERTING METHOD 有权数据转换装置，使用数据转换装置的数字传输装置和增加的数据转换方法公开(公告)号：US20140348269A1
公开(公告)日：2014-11-27
申请号：US14272522
申请日：2014-05-08
Applicant: MEDIATEK INC.
Inventor： Yang-Chuan Chen , Chih-Jung Chen , Hsiang-Hui Chang
CPC classification number: H03K19/017509 , G01R21/06 , G01R23/00 , H03F1/02 , H03F1/24 , H03F3/2178 , H03F3/24 , H03F2203/21154 , H03K19/017581 , H03M1/12 , H04B1/04 , H04B1/0475 , H04B2001/0408 , H04B2001/045 , H04L7/0037 , H04L7/0091 , H04L25/028 , H04L25/08 , H04L27/2053 , H04L27/2067 , H04L27/3411 , H04L27/3444 , H04W24/02
Abstract: A data converting device includes: a data sampling circuit arranged to up-sample a digital signal to generate an up-sampling signal according to a clock signal; a voltage level generating circuit arranged to generate an adjustable voltage; and a signal converting circuit arranged to generate a converting signal according to the adjustable voltage and the up-sampling signal.
Abstract translation: 数据转换装置包括：数据采样电路，被配置为对数字信号进行上采样以根据时钟信号产生上采样信号; 电压电平发生电路，被布置成产生可调电压; 以及信号转换电路，被配置为根据可调电压和上采样信号产生转换信号。
-
公开(公告)号：US09263993B2
公开(公告)日：2016-02-16
申请号：US14259120
申请日：2014-04-22
Applicant: MEDIATEK INC.
Inventor： Tzu-Hsuin Peng , Chih-Hong Lou , Chao-Hsin Lu , Chi-Yun Wang , Chih-Jung Chen
CPC classification number: H03F1/26 , H03F3/45475 , H03F3/45479 , H03F3/45932 , H03F2200/129 , H03F2200/267 , H03F2203/45061 , H03F2203/45116 , H03F2203/45138 , H03F2203/45526 , H03H11/0405 , H03H11/1217 , H03H11/1234
Abstract: A low pass filter includes a first amplifier stage and a second amplifier stage. The first amplifier stage includes a differential operational amplifier, wherein the first amplifier stage is arranged to process a differential input signal to generate a differential intermediate signal, the differential input signal having a first input signal and a second input signal, and the differential intermediate signal having a first intermediate signal and a second intermediate signal. The second amplifier stage has no common-mode feedback and is arranged to process the differential intermediate signal to generate a differential output signal, wherein the differential output signal has a first output signal corresponding to the first input signal and a second output signal corresponding to the second input signal. Since the noisy common-mode feedback is removed from the second amplifier stage, the overall common-mode noise of the low pass filter can be decreased.
Abstract translation: 低通滤波器包括第一放大级和第二放大级。 第一放大器级包括差分运算放大器，其中第一放大器级被布置成处理差分输入信号以产生差分中间信号，差分输入信号具有第一输入信号和第二输入信号，以及差分中间信号 具有第一中间信号和第二中间信号。 第二放大器级没有共模反馈，并且被布置成处理差分中间信号以产生差分输出信号，其中差分输出信号具有对应于第一输入信号的第一输出信号和对应于第一输入信号的第二输出信号 第二输入信号。 由于从第二放大器级除去噪声共模反馈，所以可以降低低通滤波器的总体共模噪声。
-
8.发明授权Data converting device, digital transmitting apparatus using the data converting device, and related data converting method 有权数据转换装置，使用数据转换装置的数字发送装置以及相关的数据转换方法公开(公告)号：US09425796B2
公开(公告)日：2016-08-23
申请号：US14272522
申请日：2014-05-08
Applicant: MEDIATEK INC.
Inventor： Yang-Chuan Chen , Chih-Jung Chen , Hsiang-Hui Chang
IPC: H04L27/00 , H03K19/0175 , H03F3/217 , H04L27/34 , H04B1/04 , H04W24/02 , H04L25/02 , H04L25/08 , H03M1/12 , H04L7/00 , G01R21/06 , G01R23/00 , H03F1/24 , H04L27/20
CPC classification number: H03K19/017509 , G01R21/06 , G01R23/00 , H03F1/02 , H03F1/24 , H03F3/2178 , H03F3/24 , H03F2203/21154 , H03K19/017581 , H03M1/12 , H04B1/04 , H04B1/0475 , H04B2001/0408 , H04B2001/045 , H04L7/0037 , H04L7/0091 , H04L25/028 , H04L25/08 , H04L27/2053 , H04L27/2067 , H04L27/3411 , H04L27/3444 , H04W24/02
Abstract: A data converting device includes: a data sampling circuit arranged to up-sample a digital signal to generate an up-sampling signal according to a clock signal; a voltage level generating circuit arranged to generate an adjustable voltage; and a signal converting circuit arranged to generate a converting signal according to the adjustable voltage and the up-sampling signal.
Abstract translation: 数据转换装置包括：数据采样电路，被配置为对数字信号进行上采样以根据时钟信号产生上采样信号; 电压电平发生电路，被布置成产生可调电压; 以及信号转换电路，被配置为根据可调电压和上采样信号产生转换信号。
-
9.发明授权Transmitter having integrated design of multiple wireless communication modules 有权发射机具有多个无线通信模块的集成设计公开(公告)号：US09172410B2
公开(公告)日：2015-10-27
申请号：US14156308
申请日：2014-01-15
Applicant: MEDIATEK INC.
Inventor： Chao-Hsin Lu , Chih-Jung Chen
CPC classification number: H04B1/0053
Abstract: A transmitter includes a first wireless communication module, a second wireless communication module, a multiplexer, a digital-to-analog converter and a filter. The multiplexer selectively outputs a first digital signal derived from a digital output of the first wireless communication module or a second digital signal derived from a digital output of the second wireless communication module as a selected output. The digital-to-analog converter converts the selected output into an analog signal. The filter processes the analog signal and includes an adjustable resistive element. When the multiplexer selects the first digital signal as the selected output, the adjustable resistive element is adjusted to have a first resistance value such that the filter has a first bandwidth. When the multiplexer selects the second digital signal as the selected output, the adjustable resistive element is adjusted to have a second resistance value such that the filter has a second bandwidth.
Abstract translation: 发射机包括第一无线通信模块，第二无线通信模块，复用器，数模转换器和滤波器。 复用器选择性地输出从第一无线通信模块的数字输出导出的第一数字信号或从第二无线通信模块的数字输出导出的第二数字信号作为选择的输出。 数模转换器将所选输出转换为模拟信号。 滤波器处理模拟信号并包括可调电阻元件。 当多路复用器选择第一数字信号作为所选择的输出时，可调电阻元件被调整为具有第一电阻值，使得滤波器具有第一带宽。 当多路复用器选择第二数字信号作为所选择的输出时，可调节电阻元件被调整为具有第二电阻值，使得滤波器具有第二带宽。
-
公开(公告)号：US20140086360A1
公开(公告)日：2014-03-27
申请号：US14037329
申请日：2013-09-25
Applicant: MEDIATEK INC.
Inventor： Hsiang-Hui Chang , Li-Shin Lai , Chih-Jung Chen , Chih-Hao Sun
IPC: H04B1/04
CPC classification number: H04B1/0475 , H04B1/0483 , H04L27/04
Abstract: A transmitter includes a first channel and a second channel. The first channel includes a first mixer, and is used for processing a first input signal to generate a first output signal; the second channel includes a second mixer, where the second channel does not receive any input signal. When the transmitter is operated under a first mode, both the first mixer and the second mixer receive oscillation signals.
Abstract translation: 发射机包括第一信道和第二信道。 第一通道包括第一混频器，用于处理第一输入信号以产生第一输出信号; 第二通道包括第二混频器，其中第二通道不接收任何输入信号。 当发射机在第一模式下操作时，第一混频器和第二混频器都接收振荡信号。
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.018 seconds)
