USB OTG AUTO CHANGE DEVICE
A USB OTG auto change device according to the present invention, for example, removes an exclusive USB OTG IC and an exclusive OTG cable connector with high costs by integrating a detector which detects a voltage difference corresponding to a type of an external connection device, a counter which co...
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| Format: | Patent |
| Sprache: | eng ; kor |
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| Zusammenfassung: | A USB OTG auto change device according to the present invention, for example, removes an exclusive USB OTG IC and an exclusive OTG cable connector with high costs by integrating a detector which detects a voltage difference corresponding to a type of an external connection device, a counter which counts a result value by comparing the detected voltage difference with a reference voltage reference, and a controller which automatically changes a role of a host or a peripheral device according to the result value in one USB IC; and efficiently reduces manufacturing costs and improves the usage convenience by not requiring a manual selection of a user. |
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