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:
Jan. 15, 2019
Filed:
Dec. 15, 2016
Lenovo (Singapore) Pte. Ltd., Singapore, SG;
Yasushi Tsukamoto, Kanagawa-ken, JP;
Fusanobu Nakamura, Kanagawa-ken, JP;
Mitsuhiro Yamazaki, Kanagawa-ken, JP;
LENOVO (SINGAPORE) PTE LTD, Singapore, SG;
Abstract
A keyboard that can yield a favorable keying feeling to a user is disclosed. The keyboard includes multiple keys, a pressure sensor configured to sense a pressure used for pressing a key, a haptic device configured to generate haptic feedback that involves a micro vibration, and a feedback control unit configured to issue a signal used for driving the haptic device according to the pressure that the pressure sensor has sensed. In response to one-time key pressing, the feedback control unit issues a drive signal for generating a first haptic feedback when the pressure that the pressure sensor has sensed reaches a first threshold value, and a drive signal for generating a second haptic feedback when the pressure that the pressure sensor has sensed reaches a second threshold value.