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US 12,517,854 B2Granted
Compensating DC loss in USB 2.0 high speed applications
AssigneeTexas Instruments Incorporated
InventorsYonghui Tang, Yanli Fan
Life of this patent
Estimating the term…
Abstract
In an embodiment, a current source is coupled to a first current terminal of a switch, the second current terminal of which is coupled to a first data line in a communication system. An edge detector has a first input, a second input, and an output, in which the first input is coupled to a second data line in the communication system, the second input is coupled to the first data line, and the output is coupled to a control terminal of the switch. The first and second data lines may be positive and negative data lines, respectively, of the communication system.
Claims15
A system comprising:
- a current source;
- a switch having a first current terminal, a second current terminal, and a control terminal, the first current terminal coupled to the current source, and the second current terminal coupled to a first terminal;
- and
- an edge detector having a first input, a second input, and an output, the first input of the edge detector coupled a second terminal, the second input of the edge detector coupled to the first terminal, and the output of the edge detector coupled to the control terminal of the switch.
1 more element
A system comprising:
- a current source;
- switching circuitry having current inputs coupled to the current source, a first current output coupled to a first terminal, a second current output coupled to a second terminal;
- logic circuitry having outputs coupled to the switching circuitry;
- first edge detection circuitry having inputs coupled to the first and second terminals, and first and second outputs coupled to the logic circuitry;
- and
- second edge detection circuitry having inputs coupled to first and second data lines, and first and second outputs coupled to the logic circuitry.
3 more elements
Dependencies are inferred from the claim text.