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The meaning of OTG products

OTG
USB On-The-Go Supplement 0: Released in December 2001. USB On-The-Go Supplement 0a: Released in June 2003, the current version.
USB OTG is the abbreviation of USB On-The-Go. It is a technology that has been developed. It was announced by the USB Implementers Forum on December 18, 2001. It is mainly used for connection between various devices or mobile devices for data exchange. Especially PDAs, mobile phones, consumer devices. It is inconvenient to exchange data between up to seven types of memory cards by changing a variety of different types of connectors between devices such as digital cameras, camcorders, and printers.
The development of USB technology enables PCs and peripheral devices to connect devices of various data transmission speeds in a simple manner and with moderate manufacturing costs. The above mentioned applications can all be used as PC peripherals on PCs. Data exchange under control. However, this convenient exchange method, once left the PC, can not operate with the USB port between the devices, because there is no slave device that can act as a PC.
On-The-Go, the OTG technology, enables data transfer between devices without a Host. For example, the digital camera is directly connected to the printer, and the OTG technology is used to connect the USB port between the two devices to print the photos immediately; or the data in the digital camera can be sent to the USB hard disk through the OTG. In the field, there is no need to carry an expensive memory card or carry a portable computer.
In the OTG product, some new features have been added:
New standard for designing small connectors and cables;
On traditional peripheral devices, the Host capability has been added to accommodate point-to-point connections;
This capability can be dynamically switched between two devices;
Low power consumption, ensuring USB can work under battery power
After using OTG, it does not affect the connection between the original device and the PC, but it has more than 1 billion USB interface devices in the market in the 1920s, and can also be interconnected through OTG.

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