18-01-2018 дата публикации
Номер: US20180019080A1
Принадлежит:
A keyboard includes a base plate, a pressure sensing layer, a first key structure and a second key structure. The pressure sensing layer includes plural pressure sensing regions. Each of the first key structure and the second key structure corresponds to a pressure sensing region. Moreover, the first key structure and the second key structure are located over the corresponding pressure sensing regions. In response to different magnitudes of the depressing force, the corresponding pressure sensing regions are pushed by the first key structure and the second key structure. Consequently, the corresponding pressure sensing regions generate different pressure sensing signals. The pressure sensing layer can replace plural pressure sensing element. Consequently, the assembling process is simplified, and the assembling cost is reduced. 1. A keyboard , comprising:a base plate;a pressure sensing layer located over the base plate, wherein the pressure sensing layer comprises plural pressure sensing regions, and each of the plural pressure sensing regions is configured to receive a first force or a second force; a pedal comprising a pedestal opening;', 'an upper cover having an upper cover opening, wherein the pedestal is covered by the upper cover;', 'a movable element disposed on the pedestal and partially penetrated through the upper cover opening, wherein while the movable element is depressed, the movable element is moved relative to the pedestal;', 'an elastomer located near the movable element, wherein when the elastomer is pushed by the movable element, the elastomer is subjected to deformation and penetrated through the pedestal opening; and', 'a spring strip, and the spring strip is installed on the pedestal and arranged beside the movable element,', a main body;', 'an extension part extended externally from the main body, and aligned with the elastomer;', 'a coupling part located at a first end of the main body, and connected with a keycap; and', 'a push part, and ...
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