公开(公告)号：US10922255B2

公开(公告)日：2021-02-16

申请号：US16939725

申请日：2020-07-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Win Naing Maung ,  Douglas Edward Wente ,  Mustafa Ulvi Erdogan ,  Huanzhang Huang ,  Saurabh Goyal ,  Bhupendra Sharma

IPC: G06F13/42 ,  G06F13/38 ,  H04B3/36

Abstract: Aspects of the disclosure provide for a circuit including a squelch detector having a first input coupled to a first node and configured to receive a positive component of a differential signal with a floating center tap, a second input coupled to a second node and configured to receive a negative component of the differential signal, and an output coupled to a logic circuit, a first resistor coupled between the first node and a third node, a second resistor coupled between the third node and the second node, a third resistor coupled between the first node and a fourth node, a fourth resistor coupled between the fourth node and the second node, a capacitor coupled between the fourth node and a ground terminal, a comparator having a first input coupled to the third node, a second input coupled to a fifth node, and an output coupled to the logic circuit.

公开(公告)号：US20200257354A1

公开(公告)日：2020-08-13

申请号：US16717836

申请日：2019-12-17

Applicant: Texas Instruments Incorporated

Inventor： Suzanne Mary Vining ,  Douglas Edward Wente ,  Win Naing Maung ,  Julie Marie Nirchi

IPC: G06F1/3234 ,  G06F13/42

Abstract: A method includes detecting a micro start of frame packet (μSOF) on a data bus. If there is at least one data packet contained in a microframe during the first threshold period after the μSOF, transmitters are held in an active state. If there is no data packet in the first threshold period after the μSOF, the transmitters are transitioned from the active state to an OFF state. The method also includes transitioning the transmitters from the OFF state to the active state prior to a switchback period before the end of the microframe. The method also includes transitioning the transmitters from the OFF state to the active state if a data packet is received in the OFF state. The method also includes dropping the data packet received in the OFF state and transitioning from the OFF state to the active state when the data packet is dropped.

公开(公告)号：US12235705B2

公开(公告)日：2025-02-25

申请号：US18534911

申请日：2023-12-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mustafa Ulvi Erdogan ,  Suzanne Mary Vining ,  Bharath Kumar Singareddy ,  Douglas Edward Wente

IPC: G06F1/3215 ,  G06F1/3234 ,  G06F13/38 ,  G06F13/42

Abstract: High-speed data communication devices, e.g., repeaters, interfacing between a host and a peripheral operate such that high-speed components except for a host-side squelch detector are set or maintained in a deactivated state during an idle period of a micro frame. In an example, a start of a micro frame is detected on a data bus during a first time period. In a second time period after the first time period, the high-speed communication device determines whether at least one data packet is contained in the micro frame. When it is determined during the second time period that no data packet is contained in the micro frame, active components, except a squelch detector, are controlled to be inactive during a third time period after the second time period.

公开(公告)号：US11792361B2

公开(公告)日：2023-10-17

申请号：US17363158

申请日：2021-06-30

Applicant: Texas Instruments Incorporated

Inventor： Charles Michael Campbell ,  Mustafa Ulvi Erdogan ,  Douglas Edward Wente ,  Sridhar Ramaswamy

IPC: H04N7/10 ,  H04N21/442 ,  H04N21/4363

CPC classification number: H04N7/102 ,  H04N21/43635 ,  H04N21/44227

Abstract: A redriver system adapted for coupling to a first device and to a second device includes first and second transmitter drivers and a snoop circuit. The first transmitter driver has a first enable input. The second transmitter driver has a second enable input. The snoop circuit is coupled to the first and second enable inputs. The snoop circuit is configured to determine whether the first device and the second device are to operate according to a first protocol. Responsive to the snoop circuit determining that the first and second devices are to operate according to the first protocol, the snoop circuit enables the first transmitter driver and disables the second transmitter driver. Responsive to the snoop circuit determining that the first and second devices are not to operate according to the first protocol, the snoop circuit disables the first transmitter driver and enables the second transmitter driver.

公开(公告)号：US20220206556A1

公开(公告)日：2022-06-30

申请号：US17330027

申请日：2021-05-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mustafa Ulvi Erdogan ,  Suzanne Mary Vining ,  Bharath Kumar Singareddy ,  Douglas Edward Wente

IPC: G06F1/3215 ,  G06F13/42 ,  G06F1/3234 ,  G06F13/38

Abstract: High-speed data communication devices, e.g., repeaters, interfacing between a host and a peripheral operate such that high-speed components except for a host-side squelch detector are set or maintained in a deactivated state during an idle period of a micro frame. In an example, a start of a micro frame is detected on a data bus during a first time period. In a second time period after the first time period, the high-speed communication device determines whether at least one data packet is contained in the micro frame. When it is determined during the second time period that no data packet is contained in the micro frame, active components, except a squelch detector, are controlled to be inactive during a third time period after the second time period.

公开(公告)号：US11068435B2

公开(公告)日：2021-07-20

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.

公开(公告)号：US10762016B2

公开(公告)日：2020-09-01

申请号：US16404494

申请日：2019-05-06

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Win Naing Maung ,  Douglas Edward Wente ,  Mustafa Ulvi Erdogan ,  Huanzhang Huang ,  Saurabh Goyal ,  Bhupendra Sharma

IPC: G06F13/38 ,  G06F13/42 ,  H04B3/36

Abstract: Aspects of the disclosure provide for a circuit including a squelch detector having a first input coupled to a first node and configured to receive a positive component of a differential signal with a floating center tap, a second input coupled to a second node and configured to receive a negative component of the differential signal, and an output coupled to a logic circuit, a first resistor coupled between the first node and a third node, a second resistor coupled between the third node and the second node, a third resistor coupled between the first node and a fourth node, a fourth resistor coupled between the fourth node and the second node, a capacitor coupled between the fourth node and a ground terminal, a comparator having a first input coupled to the third node, a second input coupled to a fifth node, and an output coupled to the logic circuit.

公开(公告)号：US20200264989A1

公开(公告)日：2020-08-20

申请号：US16661018

申请日：2019-10-23

Applicant: Texas Instruments Incorporated

Inventor： Douglas Edward Wente ,  Suzanne Mary Vining ,  Win Naing Maung ,  Julie Marie Nirchi

IPC: G06F13/10 ,  G06F13/42

Abstract: A method of operating an embedded USB2 (eUSB2) repeater includes receiving a downstream packet at a USB2 port and transitioning a USB transmitter from an idle state to a standby state responsive to receiving the downstream packet. The method further includes transitioning the USB transmitter from the standby state to an active state if an upstream packet is received at an eUSB2 port within a first time period of receiving the downstream packet and transmitting the upstream packet. The method also includes transitioning the USB transmitter from the active state to the standby state after transmission of the upstream packet. The method also includes transitioning the USB transmitter from the standby state to the idle state if more upstream packets are not received at the eUSB2 port within a second time period.

公开(公告)号：US20250165050A1

公开(公告)日：2025-05-22

申请号：US19033728

申请日：2025-01-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mustafa Ulvi Erdogan ,  Suzanne Mary Vining ,  Bharath Kumar Singareddy ,  Douglas Edward Wente

IPC: G06F1/3215 ,  G06F1/3234 ,  G06F13/38 ,  G06F13/42

Abstract: High-speed data communication devices, e.g., repeaters, interfacing between a host and a peripheral operate such that high-speed components except for a host-side squelch detector are set or maintained in a deactivated state during an idle period of a micro frame. In an example, a start of a micro frame is detected on a data bus during a first time period. In a second time period after the first time period, the high-speed communication device determines whether at least one data packet is contained in the micro frame. When it is determined during the second time period that no data packet is contained in the micro frame, active components, except a squelch detector, are controlled to be inactive during a third time period after the second time period.

公开(公告)号：US11543875B2

公开(公告)日：2023-01-03

申请号：US17577688

申请日：2022-01-18

Applicant: Texas Instruments Incorporated

Inventor： Suzanne Mary Vining ,  Douglas Edward Wente ,  Win Naing Maung ,  Julie Marie Nirchi

IPC: G06F1/3234 ,  G06F13/42 ,  G06F1/3206 ,  G06F13/40

Abstract: In an example, a data communication device includes one or more receivers, and one or more transmitters. The data communication device detects a start of frame packet (μSOF) on a data bus, wherein the μSOF indicates the start of a microframe; determines whether there are any data packets contained in the microframe during a first threshold period after the μSOF; and detects that there is no data packet contained in the microframe during the first threshold period after the μSOF, and in response, transitions at least one of the one or more transmitters from an active state to an OFF state, and transitions the at least one of the one or more transmitters from the OFF state to the active state prior to a switchback period before the end of the microframe.