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公开(公告)号:US20210311898A1
公开(公告)日:2021-10-07
申请号:US17347882
申请日:2021-06-15
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Win Naing MAUNG , Yonghui TANG , Huanzhang HUANG , Douglas Edward WENTE
Abstract: Aspects of the present disclosure provide for a system. In at least some examples, the system includes an embedded Universal Serial Bus 2 (eUSB2) device having a first receiver and a first transmitter, a processor, a second transmitter coupled to the processor, a second receiver coupled to the processor, a drive low circuit coupled to the processor second transmitter, and differential signal lines having a length greater than ten inches. The differential signal lines are coupled at a first end to the first receiver and the first transmitter and at a second end to the second transmitter and the second receiver. The processor is configured to control the drive low circuit to drive the differential signal lines low with a logic ‘0’ to cause the first receiver to receive the logic ‘0’ and a value of a signal present on the differential signal lines to reach about 0 volts.
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公开(公告)号:US20200285602A1
公开(公告)日:2020-09-10
申请号:US16747719
申请日:2020-01-21
Applicant: Texas Instruments Incorporated
Inventor: Win Naing MAUNG , Douglas Edward WENTE , James Mark SKIDMORE , Bharath Kumar SINGAREDDY , Suzanne Mary VINING , Huanzhang HUANG
IPC: G06F13/42
Abstract: A system includes an eUSB2 transmitter, wherein the eUSB2 transmitter is configured to provide a data set comprising a data packet, default sync bits, and surplus sync bits. The system also includes an eUSB2 to USB 2.0 repeater coupled to the eUSB2 transmitter, wherein the eUSB2 to USB 2.0 repeater is configured to remove the surplus sync bits and to output the data packet and the default sync bits.
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公开(公告)号:US20200242071A1
公开(公告)日:2020-07-30
申请号:US16751411
申请日:2020-01-24
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Win Naing MAUNG , Suzanne Mary VINING , Yonghui TANG , Douglas Edward WENTE , Huanzhang HUANG
IPC: G06F13/42
Abstract: A serial bus signal conditioner circuit includes receiver circuitry, a mode identification circuit, and an edge-rate booster circuit. The receiver circuitry is configured to receive signals transmitted on a serial bus. The mode identification circuit is coupled to the receiver circuitry, and is configured to identify initiation of or return to high-speed signaling on the serial bus based on sequences of the signals transmitted on the serial bus. The edge-rate booster circuit is coupled to the mode identification circuit, and is configured to identify edges of a differential signal transmitted on the serial bus, and to supply a differential current to the serial bus based on identification of an edge of the differential signal.
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公开(公告)号:US20160087633A1
公开(公告)日:2016-03-24
申请号:US14847264
申请日:2015-09-08
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Weicheng ZHANG , Huanzhang HUANG , Yanli FAN , Roland SPERLICH
IPC: H03K19/0944
CPC classification number: H03K19/0944 , H03K19/018578
Abstract: A driver includes first and second resistors coupled to a supply voltage and coupled to pairs of main transistors at positive and negative output nodes. The first and second pairs of main transistors provide emphasis and de-emphasis on the positive and negative output nodes. The driver also includes a delay inverter, a pull up booster and a pull down booster. The delay inverter delays and inverts each of a pair of differential input signals to provide delayed and inverted differential signals. The pull up booster provides a bypass current path that bypasses the first and second resistors but includes at least some of the first and second pairs of main transistors. The pull down booster provides an additional current path from the supply voltage through the first or second resistor to ground.
Abstract translation: 驱动器包括耦合到电源电压的第一和第二电阻器,并且耦合到正和负输出节点处的主晶体管对。 第一和第二对主晶体管对正和负输出节点提供强调和去加重。 该驱动器还包括一个延迟逆变器,一个上拉升压器和一个下拉式升压器。 延迟反相器延迟并反相一对差分输入信号,以提供延迟和反相的差分信号。 上拉升压器提供绕过第一和第二电阻器但包括第一和第二对主晶体管中的至少一些的旁路电流路径。 下拉升压器提供从电源电压通过第一或第二电阻到地的附加电流路径。
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公开(公告)号:US20200350899A1
公开(公告)日:2020-11-05
申请号:US16936462
申请日:2020-07-23
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Huanzhang HUANG , Amit RANE
IPC: H03K17/00 , G06F13/38 , H03K19/003 , H03K17/56
Abstract: Aspects of the disclosure provide for a circuit. In some examples, the circuit includes a first inverter coupled between first and second nodes, a second inverter coupled between third and fourth nodes, and a first logic circuit having a first input coupled to the second node, a second input coupled to the fourth node, and an output, a first positive feedback circuit coupled between the first and third nodes and having a control input. The first positive feedback circuit comprises a first switch coupled between the first and fifth nodes and having a control input, a second switch coupled between the third and sixth nodes and having a control input, a third inverter having an input coupled to the sixth node and an output coupled to the fifth node, and a fourth inverter having an input coupled to the fifth node and an output coupled to the sixth node.
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公开(公告)号:US20200059224A1
公开(公告)日:2020-02-20
申请号:US16367381
申请日:2019-03-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Yanfei JIANG , Huanzhang HUANG , Yonghui TANG , Shita GUO
IPC: H03K5/00 , H03K5/1252 , G05F1/46 , H03K19/20 , H03K19/0175
Abstract: Aspects of the disclosure provide for a method. In some examples, the method includes detecting a transition in an input signal (IN), generating a bias current based on the detected transition in IN, and modifying a charge status of a capacitor based on the charge current. The method further includes generating an output signal (OUT) based on the charge status of the capacitor, disabling the bias current generation based on values of IN and OUT, and strongly pulling the capacitor up or down based on the disabling the bias current generation.
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公开(公告)号:US20200052684A1
公开(公告)日:2020-02-13
申请号:US16535557
申请日:2019-08-08
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Huanzhang HUANG , Amit RANE
IPC: H03K17/00 , G06F13/38 , H03K17/56 , H03K19/003
Abstract: Aspects of the disclosure provide for a circuit. In some examples, the circuit includes a first inverter coupled between first and second nodes, a second inverter coupled between third and fourth nodes, and a first logic circuit having a first input coupled to the second node, a second input coupled to the fourth node, and an output, a first positive feedback circuit coupled between the first and third nodes and having a control input. The first positive feedback circuit comprises a first switch coupled between the first and fifth nodes and having a control input, a second switch coupled between the third and sixth nodes and having a control input, a third inverter having an input coupled to the sixth node and an output coupled to the fifth node, and a fourth inverter having an input coupled to the fifth node and an output coupled to the sixth node.
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公开(公告)号:US20210311903A1
公开(公告)日:2021-10-07
申请号:US17347920
申请日:2021-06-15
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Win Naing MAUNG , Suzanne Mary VINING , Yonghui TANG , Douglas Edward WENTE , Huanzhang HUANG
IPC: G06F13/42
Abstract: A serial bus signal conditioner circuit includes receiver circuitry, a mode identification circuit, and an edge-rate booster circuit. The receiver circuitry is configured to receive signals transmitted on a serial bus. The mode identification circuit is coupled to the receiver circuitry, and is configured to identify initiation of or return to high-speed signaling on the serial bus based on sequences of the signals transmitted on the serial bus. The edge-rate booster circuit is coupled to the mode identification circuit, and is configured to identify edges of a differential signal transmitted on the serial bus, and to supply a differential current to the serial bus based on identification of an edge of the differential signal.
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公开(公告)号:US20210240648A1
公开(公告)日:2021-08-05
申请号:US17233677
申请日:2021-04-19
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Win Naing MAUNG , Bhupendra SHARMA , Huanzhang HUANG , Douglas Edward WENTE , Suzanne Mary VINING , Mustafa Ulvi ERDOGAN
Abstract: Aspects of the disclosure provide for a method. In at least some examples, the method includes receiving, at a circuit, data via a differential input signal. The method further includes detecting a falling edge in the data received via the differential input signal. The method further includes holding an output of the circuit at a final logical value of the data. The method further includes disabling a transmitter of the circuit while holding the output of the circuit at the final logical value of the data. The method further includes releasing the output of the circuit from the final logical value of the data.
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公开(公告)号:US20200272590A1
公开(公告)日:2020-08-27
申请号:US15931762
申请日:2020-05-14
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Win Naing MAUNG , Bhupendra SHARMA , Huanzhang HUANG , Douglas Edward WENTE , Suzanne Mary VINING , Mustafa Ulvi ERDOGAN
Abstract: Aspects of the disclosure provide for a method. In at least some examples, the method includes receiving, at a circuit, data via a differential input signal. The method further includes detecting a falling edge in the data received via the differential input signal. The method further includes holding an output of the circuit at a final logical value of the data. The method further includes disabling a transmitter of the circuit while holding the output of the circuit at the final logical value of the data. The method further includes releasing the output of the circuit from the final logical value of the data.
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