公开(公告)号：US20220206983A1

公开(公告)日：2022-06-30

申请号：US17502418

申请日：2021-10-15

Applicant: Texas Instruments Incorporated

Inventor： Mustafa Ulvi Erdogan ,  Bharath Kumar Singareddy ,  Suzanne Mary Vining ,  Srijan Rastogi ,  Sirish Oruganti ,  Douglas Edward Wente

IPC: G06F13/40 ,  G06F13/42

Abstract: A method of operating an embedded universal serial bus (eUSB) repeater includes holding an eUSB receiver and a USB transmitter in active states and holding a USB receiver and an eUSB transmitter in standby states. The method includes receiving by the eUSB receiver a token packet indicative of transmission of a first downstream packet, and transitioning the USB receiver and the eUSB transmitter from the standby states to the active states responsive to the token packet. The method includes transmitting the token packet by the USB transmitter. The method includes receiving by the eUSB receiver a downstream packet or receiving by the USB receiver an upstream packet within a first timeout period after receiving the token packet, and transmitting the downstream packet by the USB transmitter or transmitting the upstream packet by the eUSB transmitter.

公开(公告)号：US20220157222A1

公开(公告)日：2022-05-19

申请号：US17526710

申请日：2021-11-15

Applicant: Texas Instruments Incorporated

Inventor： Yonghui Tang ,  Charles Michael Campbell ,  Mustafa Ulvi Erdogan ,  Douglas Edward Wente ,  Yanli Fan

IPC: G09G3/20

Abstract: An example apparatus includes: a first input and a second input, a first equalizer with a third input, a fourth input, and a fifth input, the third input coupled to the first input, the fourth input coupled to the second input, a second equalizer with a sixth input, a seventh input, and an eighth input, the sixth input coupled to the first input, the seventh input coupled to the second input, and a controller coupled to the fifth input and the eighth input.

公开(公告)号：US11068428B2

公开(公告)日：2021-07-20

申请号：US16414496

申请日：2019-05-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Win Naing Maung ,  Yonghui Tang ,  Huanzhang Huang ,  Douglas Edward Wente

IPC: G06F13/00 ,  G06F13/40 ,  G06F13/42

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.

公开(公告)号：US10891242B2

公开(公告)日：2021-01-12

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: G06F13/42 ,  G06F13/10

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：US10657089B2

公开(公告)日：2020-05-19

申请号：US16404433

申请日：2019-05-06

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Win Naing Maung ,  Bhupendra Sharma ,  Huanzhang Huang ,  Douglas Edward Wente ,  Suzanne Mary Vining ,  Mustafa Ulvi Erdogan

IPC: H03K5/24 ,  G06F13/38 ,  H03F3/45 ,  G06F13/42

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.