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. 04, 2018
Filed:
Jun. 23, 2016
Realtek Semiconductor Corp., Hsinchu, TW;
Chong Liu, Suzhou, CN;
Luo-Bin Wang, Suzhou, CN;
Jian-Jhong Zeng, New Taipei, TW;
Neng-Hsien Lin, Kaohsiung, TW;
REALTEK SEMICONDUCTOR CORP., Hsinchu, TW;
Abstract
A USB control circuit of a USB hub device includes: an upstream MAC-layer circuit; a downstream MAC-layer circuit; a first USB PHY-layer circuit; a second USB PHY-layer circuit; a first switch circuit for communicating data with an upstream port through the first USB PHY-layer circuit; a second switch circuit for communicating data with a downstream port through the second USB PHY-layer circuit; a control signal transmission interface; a signal repeater circuit; and a control unit configured to operably control the first switch circuit and the second switch circuit through the control signal transmission interface, so that the first switch circuit selectively couples the upstream MAC-layer circuit or the signal repeater circuit with the first USB PHY-layer circuit, while the second switch circuit selectively couples the downstream MAC-layer circuit or the signal repeater circuit with the second USB PHY-layer circuit.