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:
Jun. 25, 2019
Filed:
Nov. 23, 2017
Rec Technology Corporation, Taoyuan, TW;
Chien-Ming Chen, Taoyuan, TW;
REC Technology Corporation, Taoyuan, TW;
Abstract
An electronic apparatus with power over coaxial cable (PoC) function including a transmission port, a low-pass filter, a dynamic impedance circuit and a switching power converter is provided. The transmission port is coupled to a coaxial cable. The low-pass filter is coupled to the transmission port to receive a mixed signal from the coaxial cable and filter the mixed signal to obtain a first power. The dynamic impedance circuit is coupled to the low-pass filter to receive and store the first power and provide a second power accordingly. The switching power converter is coupled to the dynamic impedance circuit to receive the second power and convert the second power to an operation power. The dynamic impedance circuit changes an impedance thereof dynamically in response to a current change of the second power, so as to prevent a noise of the switching power converter from being feedback to the transmission port.