Keyboard with induction antenna arranged under a key

摘要

A keyboard includes a membrane switch circuit module, a metallic supporting plate, plural keys, an induction antenna assembly, and a signal processing unit. The induction antenna assembly includes a first partition plate, a second partition plate and an antenna layer. The first partition plate is arranged between the metallic supporting plate and the keycap of a specified key. The second partition plate is connected with the first partition plate and arranged between the first partition plate and the keycap of the specified key. The antenna layer is arranged between the first partition plate and the second partition plate. The signal processing unit is electrically connected with the antenna layer. When the antenna layer senses that an object enters the sensing range, the signal processing unit issues a sensing signal.

主权项

1. A keyboard, comprising:
a membrane switch circuit module generating plural key switch signals; a metallic supporting plate disposed under the membrane switch circuit module; plural keys disposed over the membrane switch circuit module, wherein when one of the plural keys is depressed, the membrane switch circuit module generates the corresponding key switch signal; an induction antenna assembly arranged between the metallic supporting plate and a specified key of the plural keys, wherein the induction antenna assembly comprises a first partition plate, a second partition plate and an antenna layer, wherein the second partition plate is connected with the first partition plate and arranged between the first partition plate and the specified key, wherein the antenna layer is arranged between the first partition plate and the second partition plate; and a signal processing unit electrically connected with the antenna layer, wherein when the antenna layer senses that an object enters a sensing range, the signal processing unit issues a sensing signal.