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:
Aug. 27, 2019
Filed:
Jun. 01, 2018
Wiwynn Corporation, New Taipei, TW;
Li-Min Chang, New Taipei, TW;
Kai Jie Lai, New Taipei, TW;
Chia-Hung Yen, New Taipei, TW;
Po Yu Chen, New Taipei, TW;
WIWYNN CORPORATION, New Taipei, TW;
Abstract
An electronic device for communicating with an external device includes a connector, a controller, a first switch element, a second switch element, a first voltage source, a second voltage source, a third voltage source, and a fourth voltage source. When the external device is coupled to the connector, the connector receives a device existence voltage from the external device. The controller generates a first control signal and a second control signal according to the device existence voltage. The first switch element couples the first voltage source or the second voltage source to the connector according to the first control signal. The second switch element couples the third voltage source or the fourth voltage source to an output node according to the second control signal.