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. 12, 2012
Filed:
Jul. 10, 2009
Fei YE, Chengdu, CN;
Xiangyang Guo, Chengdu, CN;
Guojun Zhu, Chengdu, CN;
IPGoal Microelectronics (SiChuan) Co., Ltd., High-Tech Incubation Park, Chengdu, Sichuan Province, CN;
Abstract
The present invention provides a current segmentation circuit for optimizing output waveform from high speed data transmission interface, which comprises a four current sources controlled by four switches to segment current so as to control the rising and falling time of the high speed transmission data, and to match the delay of the current control signal and the delay of the data, wherein the four current sources are I, I, Iand I, and the current control switches are K, K, Kand K, wherein I+I=I+I, wherein the switches Kand Kcontrol the current I/Ito flow into DP/DM line, and the switches Kand Kcontrol the current I/Ito flow into DP/DM line. The present invention can depress overshoot and eliminate turning point in the waveform.