The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2020
Filed:
Apr. 16, 2018
Dell Products, L.p., Round Rock, TX (US);
Yong-Teng Lin, Yilan, TW;
Geroncio Ong Tan, Austin, TX (US);
Timothy C. Shaw, Austin, TX (US);
No-Hua Chuang, Taipei, TW;
Erh-Chieh Chang, Taipei, TW;
Chih-Hao Chen, New Taipei, TW;
Wen-Pin Huang, Taipei, TW;
Dell Products, L.P., Round Rock, TX (US);
Abstract
Systems and methods for a hack-proof security keyboard are described. In some embodiments, a keyboard module may include a first circuit configured to detect activation of a plurality of keys and a second circuit configured to detect activation of a subset of the plurality of keys, where the second circuit overlies the first circuit. In other embodiments, a method may include detecting an electrical signal received from a secondary membrane of a keyboard, where the keyboard includes a primary membrane configured to detect individual activation of any of a plurality of keys, and where the secondary membrane is configured to output the electrical signal in response to concurrent activation of a subset of the plurality of keys. The method may also include performing a selected action in response to the detection.