Input devices and their use
作者： David H. Levy
DOI:
关键词: Input device 、 Cover (algebra) 、 Engineering drawing 、 Keypad 、 Acoustics 、 Engineering 、 Key (cryptography) 、 Substrate (printing)
摘要: A keypad has a substrate carrying an array of sense elements arranged to change state in response operation, flexible cover disposed above the and having exposed surface defining independent key regions, with combination regions defined interstices between adjacent discrete snap extending spacing from substrate.
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