DETECTION CIRCUIT AND DETECTION METHOD FOR ON-THE-GO DEVICE, AND TERMINAL
First Claim
1. A detection circuit for an on-the-go (OTG) device, comprising:
- a detection unit, wherein the detection unit comprises a voltage source and a first resistor that are connected in series, the voltage source is configured to generate a first voltage, and the first resistor is configured to divide the first voltage, to obtain a second voltage;
a detection end, connected to an external device and the detection unit, and configured to provide a connection interface between the detection circuit and the external device; and
a detection chip, connected to the first resistor, and configured to determine, when the second voltage is less than a specified voltage, that the external device is an OTG device.
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Accused Products
Abstract
A detection circuit and a detection method for an on-the-go device, and a terminal are disclosed. The detection circuit includes a detection unit, a detection end, and a detection chip. The detection unit includes a voltage source and a first resistor that are connected in series, the voltage source is configured to generate a first voltage, and the first resistor is configured to divide the first voltage, to obtain a second voltage. The detection end is connected to an external device and the detection unit, and is configured to provide a connection interface between the detection circuit and the external device. The detection chip is connected to the first resistor, and is configured to determine, when the second voltage is less than a specified voltage, that the external device is an OTG device.
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Citations
15 Claims
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1. A detection circuit for an on-the-go (OTG) device, comprising:
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a detection unit, wherein the detection unit comprises a voltage source and a first resistor that are connected in series, the voltage source is configured to generate a first voltage, and the first resistor is configured to divide the first voltage, to obtain a second voltage; a detection end, connected to an external device and the detection unit, and configured to provide a connection interface between the detection circuit and the external device; and a detection chip, connected to the first resistor, and configured to determine, when the second voltage is less than a specified voltage, that the external device is an OTG device. - View Dependent Claims (2, 3, 4, 5, 10, 11, 12)
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6. A detection method for an on-the-go (OTG) device, comprising:
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generating, by a voltage source comprised in a detection unit in a detection circuit, a first voltage, and dividing, by a first resistor comprised in the detection unit, the first voltage, to obtain a second voltage; providing, by a detection end in the detection circuit, a connection interface between the detection circuit and an external device; and determining, by a detection chip in the detection circuit when the second voltage is less than a specified voltage, that the external device is an OTG device. - View Dependent Claims (7, 8, 9, 13, 14, 15)
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Specification