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:
Apr. 16, 2013
Filed:
May. 09, 2012
Tai-lin Wu, New Taipei, TW;
Tai-shing Wan, Taoyuan County, TW;
Tai-Lin Wu, New Taipei, TW;
Tai-Shing Wan, Taoyuan County, TW;
Quanta Computer Inc., Taoyuan Shien, TW;
Abstract
A communication system having a common ground mechanism is provided. The communication system comprises a local host, a local telephone device, a sound input path and a sound output path. The local telephone device is connected to a remote telephone device through a telecom facility. The sound input path comprises a first transformer module and is connected between the local telephone device and the local host such that the local telephone device may transfer a sound input to the local host. The sound output path comprises a second transformer module and is connected between the local telephone device and the local host such that the local telephone device may receive a sound output from the local host. The first and the second transformer modules couple a first ground of the telecom facility and a second ground of the local host together such that the first and second grounds are common-grounded.