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Nokia have had loads of innovative ideas over the last few years but this one is the best. we are talking about a patent application called ” Mobile device with virtual keyboard”.
If it is done, there is no difficulty for data entry in a small mobile device. For reaching to this goal we need virtual keyboards or virtual input displays which project onto a work surface, the camera on the phone can capture movement and then in return position where the users fingers are and then project them on a virtual keyboard shown on the phone display in real time.
The phone is also equipped with the sensors to capture the sound or vibrations, generated as the user taps on the working surface (e.g. desk or table) and convert them into an input commands.
The phone itself can come with a cradle to hold it in upright position while user is typing on a table. But that is not necessary. The user can just be holding the phone in one hand and typing with another. And if no working surface is available, the user can just imitate the tapping sound with his voice.