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1. 发明授权

US10389410B2 Integrated artificial magnetic launch surface for near field communication system 有权
公开(公告)号：US10389410B2
公开(公告)日：2019-08-20
申请号：US15638163
申请日：2017-06-29
申请人： Texas Instruments Incorporated
发明人： Nathan Brooks , Benjamin Stassen Cook , Swaminathan Sankaran , Bradley Allen Kramer , Mark W. Morgan , Baher S Haroun
IPC分类号： H04B5/00 , H04B5/02 , H01Q5/40 , H01Q5/321
摘要： A system is provided in which a set of modules each have a substrate on which is mounted a radio frequency (RF) transmitter and/or an RF receiver coupled to a near field communication (NFC) coupler located on the substrate. Each module has a housing that surrounds and encloses the substrate. The housing has a port region on a surface of the housing. Each module has a field confiner located between the NFC coupler and the port region on the housing configured to guide electromagnetic energy emanated from the NFC coupler through the port region to a port region of an adjacent module. An artificial magnetic conductor surface is positioned adjacent the backside of each NFC coupler to reflect back side electromagnetic energy with a phase shift of approximately zero degrees.

2. 发明授权

US09379746B2 Isolation circuits for digital communications and methods to provide isolation for digital communications 有权
标题翻译：用于数字通信的隔离电路和为数字通信提供隔离的方法
公开(公告)号：US09379746B2
公开(公告)日：2016-06-28
申请号：US14732313
申请日：2015-06-05
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Bradley Allen Kramer , Mark W. Morgan , Swaminathan Sankaran
IPC分类号： H04L25/49 , H04B1/04
CPC分类号： H04B1/0475 , H01L2224/48091 , H03F1/02 , H03F3/24 , H04B2001/0408 , H04B2001/045 , H04L25/0266 , H04L25/069 , H04L25/49 , H01L2924/00014
摘要： Isolation circuits for digital communications and methods to provide isolation for digital communications are disclosed. An example isolation circuit includes an isolation barrier, a burst encoder in a first circuit, and an edge pattern detector in a second circuit. The example isolation barrier electrically isolates the first circuit from the second circuit. The example burst encoder generates a first pattern in response to receiving a rising edge on an input signal and generates a second pattern in response to receiving a falling edge on the input signal. The example edge pattern detector detects the first pattern or the second pattern received from the burst encoder via the isolation barrier, sets an output signal at a first signal level in response to detecting the first pattern, and sets the output signal at a second signal level in response to detecting the second pattern.
摘要翻译：公开了用于数字通信的隔离电路和用于提供用于数字通信的隔离的方法。示例性隔离电路包括隔离栅，第一电路中的突发编码器和第二电路中的边缘图案检测器。示例性隔离屏障将第一电路与第二电路电隔离。响应于在输入信号上接收上升沿，示例性突发编码器产生第一模式，并且响应于在输入信号上接收到下降沿而产生第二模式。示例性边缘模式检测器经由隔离屏障检测从脉冲串编码器接收的第一模式或第二模式，响应于检测到第一模式而将输出信号设置在第一信号电平，并将输出信号设置在第二信号电平响应于检测到第二图案。

3. 发明授权

US09209842B2 Method and circuitry for transmitting data 有权
标题翻译：用于传输数据的方法和电路
公开(公告)号：US09209842B2
公开(公告)日：2015-12-08
申请号：US14290610
申请日：2014-05-29
申请人： Texas Instruments Incorporated
发明人： Mark W. Morgan , Swaminathan Sankaran , Bradley Allen Kramer
IPC分类号： H04B1/38 , H04B1/04
CPC分类号： H04B1/0475 , H04B1/0483 , H04M11/066
摘要： Data transfer devices and methods for transferring data between first and second circuits are disclosed. A data transfer device includes a first circuit having a plurality of data channels, wherein at least one of the data channels is an active data channel. A serializer has a plurality of inputs and an output, wherein the inputs are coupled to the plurality of data channels. The serializer is for coupling only one active channel at a time to the output. An isolation barrier is coupled to the output of the serializer, the isolation attenuates transients and passes the fundamental frequency. A second circuit includes a deserializer having an input and at least one output, the input is coupled to the isolation barrier, the at least one output is at least one active data channel.
摘要翻译：公开了用于在第一和第二电路之间传送数据的数据传送装置和方法。数据传输装置包括具有多个数据信道的第一电路，其中至少一个数据信道是活动数据信道。串行器具有多个输入和输出，其中输入耦合到多个数据信道。串行器仅用于将一个活动通道一次耦合到输出。隔离栅耦合到串行器的输出端，隔离衰减瞬变并通过基频。第二电路包括具有输入和至少一个输出的解串器，该输入耦合到隔离屏障，该至少一个输出是至少一个有效数据通道。

4. 发明授权

US10969746B2 Magnetically compensated chip scale atomic clock 有权
公开(公告)号：US10969746B2
公开(公告)日：2021-04-06
申请号：US16730332
申请日：2019-12-30
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Bradley Allen Kramer , Benjamin Stassen Cook , Juan Alejandro Herbsommer
IPC分类号： G04F5/14 , H03B17/00 , H03L7/26 , H01S5/024 , H01S5/0687 , H01S5/183 , H01S5/00 , H01S5/022
摘要： In described examples, a physics cell includes: a laser source configured to emit light towards an atomic chamber containing an atomic gas; a photodetector configured to receive emissions from the atomic chamber; and a field coil for generating a magnetic field in the atomic chamber. An electronics circuit includes: a controller circuit coupled to the photodetector output and having control outputs to a digital to analog converter circuit; the digital to analog converter circuit having a coil current output to adjust the magnetic field, a modulation control output to control a modulation of the light, and having an output to control a voltage controlled oscillator; and a radio-frequency output circuit having a voltage controlled oscillator coupled to the output of the digital to analog converter circuit outputting a radio frequency signal to the laser source in the physics cell.

5. 发明授权

US10461810B2 Launch topology for field confined near field communication system 有权
公开(公告)号：US10461810B2
公开(公告)日：2019-10-29
申请号：US15638212
申请日：2017-06-29
申请人： Texas Instruments Incorporated
发明人： Benjamin Stassen Cook , Nathan Brooks , Swaminathan Sankaran , Bradley Allen Kramer , Mark W. Morgan , Baher Haroun
IPC分类号： H04B5/00 , H01Q1/32 , H01Q1/38 , H04W4/80 , G06K7/10
摘要： A system is provided in which a set of modules each have a substrate on which is mounted a radio frequency (RF) transmitter and/or an RF receiver coupled to a near field communication (NFC) coupler located on the substrate. Each module has a housing that surrounds and encloses the substrate. The housing has a port region on a surface of the housing. Each module has a field confiner located between the NFC coupler and the port region on the housing configured to guide electromagnetic energy emanated from the NFC coupler through the port region to a port region of an adjacent module. A reflective surface is positioned adjacent the backside of each NFC coupler to reflect back side electromagnetic towards the port region.

6. 发明申请

US20180115346A1 INDUCTIVE STRUCTURES WITH IMPROVED COMMON MODE TRANSIENT IMMUNITY 审中-公开
公开(公告)号：US20180115346A1
公开(公告)日：2018-04-26
申请号：US15850572
申请日：2017-12-21
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Rajaram Subramonian , Gianpaolo Lisi , Swaminathan Sankaran , Bradley Allen Kramer , Gerard Socci
IPC分类号： H04B5/00
CPC分类号： H04B5/0087 , H04B5/0031 , H04B5/0037
摘要： In described examples, an inductive structure includes first and second inductive coils to conduct respective first and second common mode currents induced by a common mode transient between: a first ground coupled to a connection between the first and second inductive coils; and a galvanically isolated second ground.

7. 发明授权

US09866283B2 Inductive structures with improved common mode transient immunity 有权
公开(公告)号：US09866283B2
公开(公告)日：2018-01-09
申请号：US15270962
申请日：2016-09-20
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Rajaram Subramonian , Gianpaolo Lisi , Swaminathan Sankaran , Bradley Allen Kramer , Gerard Socci
IPC分类号： H04B5/00 , H01P5/00
CPC分类号： H04B5/0087 , H04B5/0031 , H04B5/0037
摘要： A first inductive structure includes a data coil to transfer data by inductive coupling with a second inductive structure. First and second portions of the data coil are connected to one another at a center tap to conduct respective first and second common mode currents, induced by a common mode transient between: a first ground line coupled to the center tap; and a galvanically isolated second ground line of the second inductive structure.

8. 发明授权

US09450651B2 Inductive structures with improved common mode transient immunity 有权
标题翻译：具有改进的共模瞬态抗扰度的感应结构
公开(公告)号：US09450651B2
公开(公告)日：2016-09-20
申请号：US14311354
申请日：2014-06-23
申请人： Texas Instruments Incorporated
发明人： Rajaram Subramoniam , Gianpaolo Lisi , Swaminathan Sankaran , Bradley Allen Kramer , Gerard Socci
IPC分类号： H01P5/00 , H04B5/00 , H01F30/04
CPC分类号： H04B5/0087 , H04B5/0031 , H04B5/0037
摘要： In a first inductive structure, a first data coil includes: a first portion for conducting a first common mode current in a first direction; and a second portion for conducting a second common mode current in a second direction opposite the first direction. The first and second portions of the first data coil are connected at a first node. In a second inductive structure, a second data coil includes: a first portion for conducting a third common mode current in the first direction; and a second portion for conducting a fourth common mode current in the second direction. The first and second portions of the second data coil are connected at a second node galvanically isolated from the first node. The first, second, third and fourth common mode currents are induced by a common mode transient.
摘要翻译：在第一感应结构中，第一数据线圈包括：用于在第一方向上传导第一共模电流的第一部分; 以及用于在与第一方向相反的第二方向上传导第二共模电流的第二部分。第一数据线圈的第一和第二部分在第一节点连接。在第二感应结构中，第二数据线圈包括：用于在第一方向上传导第三共模电流的第一部分; 以及用于在第二方向上传导第四共模电流的第二部分。第二数据线圈的第一和第二部分在与第一节点电隔离的第二节点处连接。第一，第二，第三和第四共模电流由共模瞬变引起。

9. 发明授权

US09425808B1 Frequency detector 有权
标题翻译：频率检测器
公开(公告)号：US09425808B1
公开(公告)日：2016-08-23
申请号：US14732300
申请日：2015-06-05
申请人： Texas Instruments Incorporated
发明人： Bradley Allen Kramer , Swaminathan Sankaran , Hassan Ali , Nirmal C. Warke
IPC分类号： H03L7/06 , H03L7/085 , H03L7/099
CPC分类号： H03L7/085 , H03L7/087
摘要： A frequency detection technique includes generating first and second signals such that a frequency of the first signal is the same as a frequency of the second signal and such that the second signal is phase-shifted by a fixed amount with respect to the first signal. The technique further includes generating a third signal having a frequency that corresponds to an absolute value of a difference between the frequency of the first signal and an integer multiple of a frequency of the reference signal. The technique further includes generating a fourth signal having a frequency that corresponds to an absolute value of a difference between the frequency of the second signal and an integer multiple of the frequency of the reference signal. The technique further includes generating an fifth signal indicative of whether a phase relationship between the third and fourth signals is a leading phase relationship, a lagging phase relationship, or an in-phase relationship.
摘要翻译：频率检测技术包括产生第一和第二信号，使得第一信号的频率与第二信号的频率相同，并且使得第二信号相对于第一信号相移固定的量。该技术还包括产生具有与第一信号的频率和参考信号的频率的整数倍之间的差的绝对值相对应的频率的第三信号。该技术还包括产生具有对应于第二信号的频率与参考信号的频率的整数倍的差的绝对值的频率的第四信号。该技术还包括产生指示第三和第四信号之间的相位关系是否是前导相位关系，滞后相位关系或同相关系的第五信号。

10. 发明授权

US09143100B2 Method and circuitry for multi-stage amplification 有权
标题翻译：多级放大的方法和电路
公开(公告)号：US09143100B2
公开(公告)日：2015-09-22
申请号：US14066980
申请日：2013-10-30
申请人： Texas Instruments Incorporated
发明人： Swaminathan Sankaran , Bradley Allen Kramer , Hassan Ali , Nirmal C. Warke
IPC分类号： H03F3/45 , H03F1/00
CPC分类号： H03F3/45 , H03F1/00 , H03F1/42 , H03F3/45475 , H03F2200/36 , H03F2200/411 , H03F2200/537
摘要： In an amplifier, a first stage receives a differential input voltage, which is formed by first and second input voltages, and outputs a first differential current in response thereto on first and second lines having respective first and second line voltages. A second stage receives the first and second line voltages and outputs a second differential current in response thereto on third and fourth lines having respective third and fourth line voltages. A transformer includes first and second coils. A first terminal of the first coil is coupled through a first resistor to the first line. A second terminal of the first coil is coupled through a second resistor to the second line. A first terminal of the second coil is coupled through a third resistor to the third line. A second terminal of the second coil is coupled through a fourth resistor to the fourth line.
摘要翻译：在放大器中，第一级接收由第一和第二输入电压形成的差分输入电压，并且在具有相应的第一和第二线电压的第一和第二线上响应于此输出第一差分电流。第二级接收第一和第二线电压，并在具有相应的第三和第四线电压的第三和第四线上响应于此输出第二差分电流。变压器包括第一和第二线圈。第一线圈的第一端子通过第一电阻器耦合到第一线路。第一线圈的第二端子通过第二电阻器耦合到第二线路。第二线圈的第一端子通过第三电阻器耦合到第三线路。第二线圈的第二端子通过第四电阻器耦合到第四线路。

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