射频与蓝牙的比较
随着无线技术进入人类界面设备(HID)市场,越来越多的尖端HID产品在市场上推出了集成无线技术(无线键盘、无线鼠标等)。通常,开发者的选择是有限的:遵循一个流行的无线标准,比如蓝牙,或者为他们的应用开发一个专有协议。虽然无线标准提供了互操作性的好处,但它们也引入了应用程序可能不需要的复杂性和开销,从而导致更高的系统成本。另一方面,专有协议为开发人员提供了定制应用程序的灵活性,而代价是要求开发人员承担开发过程。
The key RF requirements for selecting a PC HID are cost (the PC HID market is extremely cost sensitive), security, range, power consumption, latency, interference, co-location, and ease of use. In general, standards win in the market because of interoperability of the devices. However, in the case of PC HIDs until 2009, only proprietary protocols have dominated the market. This can be attributed to the lack of any wireless standard optimized for the PC HID market in terms of cost, power and efficiency. With the advent of Bluetooth Low Energy Wireless technology aimed at low power applications, we can foresee a new wireless standard occupying the PC HID market. This article compares the Bluetooth 4.0 Wireless technology with the proprietary protocols in the HID market.
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