Crossover point correction of differential signal
AssigneeSemiconductor Components Industries, LLC
InventorsAthar Ali Khan P, Saravanan Ganesh
Life of this patent
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Abstract
A repeater circuit includes at least a first input, and output, and a repeater. The first input for receiving a single-ended data signal from an embedded universal serial bus (eUSB) host. The output provides a differential data signal in a differential universal serial bus (USB) format. The repeater is coupled between the first input and output for converting the single-ended data signal to a differential data signal, the repeater includes an adaptive delay element operable for both sides of the differential data signal to delay one, but not both, of a rising edge and a falling edge of the differential data signal in order to meet a crossover specification for the USB format.
Claims20
A repeater circuit comprising:
- a first input for receiving a single-ended data signal from an embedded universal serial bus (eUSB) host;
- an output for providing a differential data signal in a differential USB format;
- and
- a repeater coupled between the first input and the output for converting the single-ended data signal to the differential data signal, the repeater comprising an adaptive delay element operable for both sides of the differential data signal to delay one, but not both, of a rising edge and a falling edge of the differential data signal in order to meet a crossover specification for the differential USB format.
A processing system comprising:
- a processor;
- an embedded universal serial bus (eUSB) host coupled to the processor;
- a repeater circuit coupled to the eUSB host and including:
- a first input for receiving a single-ended data signal from the eUSB host;
- an output for providing a differential data signal in a differential USB format;
- and
- a repeater coupled between the first input and the output for converting the single-ended data signal to the differential data signal, the repeater comprising an adaptive delay element operable for both sides of the differential data signal to delay one, but not both, of a rising edge and a falling edge of the differential data signal in order to meet a crossover specification for the differential USB format.
A method comprising:
- receiving a single-ended data signal from an embedded universal serial bus (eUSB) host;
- providing a differential data signal at an output in a differential USB format;
- and
- applying a delay to one, but not both, of a rising edge and a falling edge of the differential data signal in order to meet a crossover specification for the differential USB format.
Dependencies are inferred from the claim text.