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1. 发明申请

WO2012154401A1 INPUT COMMON MODE VOLTAGE COMPENSATION CIRCUIT 审中-公开
标题翻译：输入公共模式电压补偿电路
公开(公告)号：WO2012154401A1
公开(公告)日：2012-11-15
申请号：PCT/US2012/034777
申请日：2012-04-24
申请人： ANALOG DEVICES, INC. , LIBERT, Robert , NGUYEN, Khiem, Quang
发明人： LIBERT, Robert , NGUYEN, Khiem, Quang
IPC分类号： H03K19/0175
CPC分类号： H03K19/0175 , H03F3/45475 , H03F3/45928 , H03F2200/516 , H03F2203/45544
摘要： A voltage level shifter for a direct coupling of an external voltage source to a common mode of a circuit may include an amplifier, a voltage-controlled current source, a first and second resistors. A first input of the amplifier may be connected to the common mode. A second input of the amplifier may, via the first and second resistors, receive a voltage indicative of the external voltage source. The output of the amplifier may indicate a voltage difference between the first and second inputs. The voltage-controlled current source may be controlled by the voltage difference to supply a current to a common node of the first and second resistors so that the voltage difference between the first and second inputs may be minimized.
摘要翻译：用于将外部电压源直接耦合到电路的共模的电压电平移位器可以包括放大器，压控电流源，第一和第二电阻器。放大器的第一输入可以连接到共模。放大器的第二输入可经由第一和第二电阻器接收指示外部电压源的电压。放大器的输出可以指示第一和第二输入之间的电压差。压控电流源可以由电压差来控制，以向第一和第二电阻器的公共节点提供电流，使得第一和第二输入端之间的电压差可以最小化。

2. 发明申请

WO2006113299A1 SYSTEM AND METHOD FOR TRI-LEVEL LOGIC DATA SHUFFLING FOR OVERSAMPLING DATA CONVERSION 审中-公开
标题翻译：用于超级数据转换的三电平逻辑数据转换的系统和方法
公开(公告)号：WO2006113299A1
公开(公告)日：2006-10-26
申请号：PCT/US2006/013761
申请日：2006-04-13
申请人： ANALOG DEVICES, INC. , NGUYEN, Khiem, Quang , SCHREIER, Richard
发明人： NGUYEN, Khiem, Quang , SCHREIER, Richard
IPC分类号： H03M1/06
CPC分类号： H03M1/067 , H03M1/0682 , H03M1/747 , H03M3/502
摘要： A system is disclosed for processing digital signals in a data converter. The system includes a thermometer encoder (12) for receiving signed binary data and for providing signed thermometer data. The signed thermometer data includes positive thermometer data and negative thermometer data. The system also includes a shuffler (18) that receives positive input data responsive to the positive thermometer data and receives negative input data responsive to the negative thermometer data. The system also includes a decoder (20) for receiving output data from the shuffler and providing decoded data to an analog output stage.
摘要翻译：公开了一种用于处理数据转换器中的数字信号的系统。该系统包括一个温度计编码器（12），用于接收带符号的二进制数据并提供签名的温度计数据。签名的温度计数据包括正温度计数据和负温度计数据。该系统还包括一个洗牌机（18），其响应于正温度计数据接收正输入数据，并响应于负温度计数据接收负输入数据。该系统还包括一个解码器（20），用于从洗牌器接收输出数据并将解码的数据提供给模拟输出级。

3. 发明申请

WO2015023707A1 SYSTEMS AND METHODS FOR NOISE CANCELING 审中-公开
标题翻译：用于消除噪音的系统和方法
公开(公告)号：WO2015023707A1
公开(公告)日：2015-02-19
申请号：PCT/US2014/050787
申请日：2014-08-12
申请人： ANALOG DEVICES, INC. , MORTENSEN, Mikael , NGUYEN, Khiem, Quang , NOLET, Melissa
发明人： MORTENSEN, Mikael , NGUYEN, Khiem, Quang , NOLET, Melissa
IPC分类号： G10K11/16
CPC分类号： G10K11/178 , G10K11/17855 , G10K2210/1282 , G10K2210/3053 , H03M1/001
摘要： Active Noise Cancellation (ANC) systems and methods that reduce latency to improve performance. In certain embodiments the systems sample a noise signal using a sample period to create a stream of digital signal data that is representative of the noise signal. A data transport layer carries the digital signal data to a signal processor. The transport layer temporally organizes the digital signal data to place the digital signal data within an initial phase of a sample period. The remaining phase of the sample period is set to a duration that allows the signal processor to process the digital signal data carried in the initial phase and to output the processed data during the same sample period. In this way, the processing of data occurs within one sample period and the latency is reduced and predictable.
摘要翻译：有源噪声消除（ANC）系统和方法可减少等待时间以提高性能。在某些实施例中，系统使用采样周期来采样噪声信号以创建表示噪声信号的数字信号数据流。数据传输层将数字信号数据传送到信号处理器。传输层临时组织数字信号数据以将数字信号数据置于采样周期的初始阶段内。采样周期的剩余阶段被设置为允许信号处理器处理在初始阶段携带的数字信号数据并在相同采样周期期间输出处理后的数据的持续时间。通过这种方式，数据处理在一个采样周期内进行，延迟时间缩短且可预测。

4. 发明申请

WO2010068560A1 SYSTEM AND METHOD FOR AREA-EFFICIENT DYNAMIC ELEMENT MATCHING 审中-公开
标题翻译：用于区域动态元素匹配的系统和方法
公开(公告)号：WO2010068560A1
公开(公告)日：2010-06-17
申请号：PCT/US2009/066706
申请日：2009-12-04
申请人： ANALOG DEVICES, INC. , NGUYEN, Khiem, Quang , BANDYOPADHYAY, Abhishek , DETERMAN, Michael
发明人： NGUYEN, Khiem, Quang , BANDYOPADHYAY, Abhishek , DETERMAN, Michael
IPC分类号： H03M3/00
CPC分类号： H03M1/0663 , H03M1/0682 , H03M1/747 , H03M3/502
摘要： A system for converting digital signals into analog signals using sigma-delta modulation and includes a signed thermometer encoder for converting a plurality of signed binary data received at the encoder into a plurality of signed thermometer data and a rotational dynamic element matching (DEM) arrangement for receiving the plurality of signed binary data and the plurality of signed thermometer data. The rotational DEM arrangement further includes a first barrel shifter for receiving a positive thermometer data at a cycle, the first barrel shifter having a first pointer indicating a starting position of next positive thermometer data, and a second barrel shifter for receiving a negative thermometer data at a cycle, the second shifter having a second pointer indicating a starting position of next negative thermometer data, wherein the first pointer is circularly shifted as a function of positive binary data and the second pointer is circularly shifted as a function of negative binary data.
摘要翻译：一种用于使用Σ-Δ调制将数字信号转换成模拟信号的系统，并且包括用于将在编码器处接收的多个带符号二进制数据转换为多个带符号温度计数据的带符号温度计编码器和用于接收多个带符号二进制数据和多个签名的温度计数据。旋转DEM装置还包括用于在一个周期接收正温度计数据的第一桶形移位器，第一桶形移位器具有指示下一个正温度计数据的起始位置的第一指针，以及用于接收负温度计数据的第二桶形移位器第二移位器具有指示下一个负温度计数据的开始位置的第二指示器，其中第一指针作为正二进制数据的函数循环移位，并且第二指针作为负二进制数据的函数循环移位。

5. 发明申请

WO2012170243A1 TWO-WIRE DIGITAL AUDIO INTERFACE 审中-公开
标题翻译：双线数字音频接口
公开(公告)号：WO2012170243A1
公开(公告)日：2012-12-13
申请号：PCT/US2012/039928
申请日：2012-05-30
申请人： ANALOG DEVICE, INC. , FU, Jie , PAN, Yang , WU, Yongyi , NGUYEN, Khiem, Quang
发明人： FU, Jie , PAN, Yang , WU, Yongyi , NGUYEN, Khiem, Quang
IPC分类号： G06F1/12
CPC分类号： H04H60/04
摘要： A digital audio interface may include two signal inputs to transmit audio data. A first signal line may carry digital serial audio data. The second signal line may carry a word clock signal to differentiate the serial audio data transmitted over the first signal line. In the case of stereo audio data, the word clock signal may correspond to a left-right clock signal and may differentiate audio data intended for a right channel from that intended for a left channel. The audio data may also be differentiated differently depending on the configuration, such as in the case that the transmitted audio data include audio for more than two channels. The word clock signal may be scaled to regenerate a bit clock signal used to encode the serial audio data over the first signal line. The encoding bit clock signal need not be transmitted.
摘要翻译：数字音频接口可以包括用于传输音频数据的两个信号输入。第一条信号线可以携带数字串行音频数据。第二信号线可以携带字时钟信号以区分通过第一信号线发送的串行音频数据。在立体声音频数据的情况下，字时钟信号可以对应于左右时钟信号，并且可以区分用于右声道的音频数据与用于左声道的音频数据。音频数据也可以根据配置而不同地进行区分，诸如在所发送的音频数据包括多于两个声道的音频的情况下。字时钟信号可以被缩放以再生用于对第一信号线上的串行音频数据进行编码的位时钟信号。编码位时钟信号不需要传输。

6. 发明申请

WO2014085161A1 ENHANCED SECOND ORDER NOISE SHAPED SEGMENTATION AND DYNAMIC ELEMENT MATCHING TECHNIQUE 审中-公开
标题翻译：增强二阶段噪声分类与动态元素匹配技术
公开(公告)号：WO2014085161A1
公开(公告)日：2014-06-05
申请号：PCT/US2013/071006
申请日：2013-11-20
申请人： ANALOG DEVICES, INC.
发明人： NGUYEN, Khiem, Quang , ADAMS, Robert
IPC分类号： H03M1/66
CPC分类号： H03M1/66 , H03M1/0668 , H03M1/067 , H03M1/74 , H03M3/464
摘要： A method and circuit to perform noise shaped splitting of a digital input signal may include using multiple layers to process the input signal. In the first layer, the most significant bits of the input signal may be distributed to a plurality of branches. Dynamic element matching may be performed using the least significant bits of the input signal. Based on the results of the dynamic element matching, values may be added to the plurality of branches. If there is insufficient data activity, dynamics enhancement may be performed to increase the data activity. The output signals of each of the plurality of branches in the first layer may be provided to a second layer, in which these steps can be repeated on each of the output signals. The outputs of the second layer may be provided to a plurality of three level unit elements.
摘要翻译：执行数字输入信号的噪声分割的方法和电路可以包括使用多个层来处理输入信号。在第一层中，输入信号的最高有效位可以被分配到多个分支。可以使用输入信号的最低有效位来执行动态元素匹配。基于动态元素匹配的结果，可以将值添加到多个分支。如果数据活动不足，可能会进行动态增强以增加数据活动。可以将第一层中的多个分支中的每一个的输出信号提供给第二层，其中可以对每个输出信号重复这些步骤。第二层的输出可以被提供给多个三级单元元件。

7. 发明授权

EP1872477B1 SYSTEM AND METHOD FOR TRI-LEVEL LOGIC DATA SHUFFLING FOR OVERSAMPLING DATA CONVERSION 有权
标题翻译：系统和方法用于混合逻辑数据在三个层面上已有的扫描数据转换
公开(公告)号：EP1872477B1
公开(公告)日：2010-09-29
申请号：EP06749962.4
申请日：2006-04-13
申请人： Analog Devices, Inc.
发明人： NGUYEN, Khiem, Quang , SCHREIER, Richard
IPC分类号： H03M1/06
CPC分类号： H03M1/067 , H03M1/0682 , H03M1/747 , H03M3/502

8. 发明公开

EP2926459A1 ENHANCED SECOND ORDER NOISE SHAPED SEGMENTATION AND DYNAMIC ELEMENT MATCHING TECHNIQUE 有权
标题翻译： VERBESSERTE RAUSCHGEFORMTE SEGMENTIERUNG ZWEITER ORDNUNG UND DYNAMISCHES ELEMENTABGLEICHSVERFAHREN
公开(公告)号：EP2926459A1
公开(公告)日：2015-10-07
申请号：EP13859273.8
申请日：2013-11-20
申请人： Analog Devices, Inc.
发明人： NGUYEN, Khiem, Quang , ADAMS, Robert
IPC分类号： H03M1/66
CPC分类号： H03M1/66 , H03M1/0668 , H03M1/067 , H03M1/74 , H03M3/464
摘要： A method and circuit to perform noise shaped splitting of a digital input signal may include using multiple layers to process the input signal. In the first layer, the most significant bits of the input signal may be distributed to a plurality of branches. Dynamic element matching may be performed using the least significant bits of the input signal. Based on the results of the dynamic element matching, values may be added to the plurality of branches. If there is insufficient data activity, dynamics enhancement may be performed to increase the data activity. The output signals of each of the plurality of branches in the first layer may be provided to a second layer, in which these steps can be repeated on each of the output signals. The outputs of the second layer may be provided to a plurality of three level unit elements.
摘要翻译：执行数字输入信号的噪声分割的方法和电路可以包括使用多个层来处理输入信号。在第一层中，输入信号的最高有效位可以被分配到多个分支。可以使用输入信号的最低有效位来执行动态元素匹配。基于动态元素匹配的结果，可以将值添加到多个分支。如果数据活动不足，可能会进行动态增强以增加数据活动。可以将第一层中的多个分支中的每一个的输出信号提供给第二层，其中可以对每个输出信号重复这些步骤。第二层的输出可以被提供给多个三级单元元件。

9. 发明授权

EP2926459B1 ENHANCED SECOND ORDER NOISE SHAPED SEGMENTATION AND DYNAMIC ELEMENT MATCHING TECHNIQUE 有权
标题翻译：增强的二阶噪声形状分割和动态元素匹配技术
公开(公告)号：EP2926459B1
公开(公告)日：2018-03-14
申请号：EP13859273.8
申请日：2013-11-20
申请人： Analog Devices, Inc.
发明人： NGUYEN, Khiem, Quang , ADAMS, Robert
IPC分类号： H03M1/06 , H03M1/74
CPC分类号： H03M1/66 , H03M1/0668 , H03M1/067 , H03M1/74 , H03M3/464
摘要： A multi-bit digital to analog converter comprising a plurality of unit cells, each providing an electrical signal to a common output at multiple levels in response to a respective control signal and a control system having multiple layers of branch circuits. Each branch circuit comprises a dynamic element matching circuit receiving a plurality of least significant bits of an input code to generate respective output signals to the control system and a plurality of branches, each receiving most significant bits of an input code to the respective layer and having an adder for the most significant bits of the layer's input signal and a respective output from the dynamic element matching circuit. An input signal to the digital to analog converter is input to a first layer as that layer's input code, input codes of the other layers are taken from output signals of preceding layers, and output signals of a last layer may be input to the unit cells as control signals.

10. 发明公开

EP1872477A1 SYSTEM AND METHOD FOR TRI-LEVEL LOGIC DATA SHUFFLING FOR OVERSAMPLING DATA CONVERSION 有权
标题翻译：系统和方法用于混合逻辑数据在三个层面上已有的扫描数据转换
公开(公告)号：EP1872477A1
公开(公告)日：2008-01-02
申请号：EP06749962.4
申请日：2006-04-13
申请人： Analog Devices, Inc.
发明人： NGUYEN, Khiem, Quang , SCHREIER, Richard
IPC分类号： H03M1/06
CPC分类号： H03M1/067 , H03M1/0682 , H03M1/747 , H03M3/502
摘要： A system is disclosed for processing digital signals in a data converter. The system includes a thermometer encoder (12) for receiving signed binary data and for providing signed thermometer data. The signed thermometer data includes positive thermometer data and negative thermometer data. The system also includes a shuffler (18) that receives positive input data responsive to the positive thermometer data and receives negative input data responsive to the negative thermometer data. The system also includes a decoder (20) for receiving output data from the shuffler and providing decoded data to an analog output stage.

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