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Apple was the MacBook Pro keyboard key patent
Apple obtained a patent on the MacBook Pro keyboard. Apple MacBook Pro keyboard unique is that it uses a double spring structure, built at the bottom of each keycap. Below in each one spring, there are a cylindrical switch. When the user presses a keyboard key, under the pressure of the spring will cylindrical switch.
Apple such spring structure is divided into two parts, the upper portion is used to prevent the keyboard cap and spring under the pressure of the cylindrical switch occurs when tilted. Patent from Apple figure we can visually see the structure of the entire keyboard. Patent FIG FIG.3 show a variety of structures is a key, from the patent FIG FIG.6 we can clearly see the location of the cylindrical switch.
Last year, Apple applied for this patent, until recently officially patented ownership. Spend mind Apple keyboard design, the beginning of the year, they applied for a patent on the single support bar keyboard institutions, this design can reduce the keyboard size at the same time, feel more comfortable key experience.