Invention Grant
- Patent Title: Compensation scheme for MHL common mode clock swing
- Patent Title (中): MHL共模时钟摆幅补偿方案
-
Application No.: US14118832Application Date: 2012-12-28
-
Publication No.: US09379752B2Publication Date: 2016-06-28
- Inventor: Xiaozhi Lin , Fei Song , Gyudong Kim , Chwei-po Chew , Min-Kyu Kim
- Applicant: Lattice Semiconductor Corporation
- Applicant Address: US OR Portland
- Assignee: Lattice Semiconductor Corporation
- Current Assignee: Lattice Semiconductor Corporation
- Current Assignee Address: US OR Portland
- Agency: Fenwick & West LLP
- International Application: PCT/CN2012/087809 WO 20121228
- International Announcement: WO2014/101088 WO 20140703
- Main IPC: H04L25/00
- IPC: H04L25/00 ; H04B1/12 ; H03F3/45 ; H04L27/26

Abstract:
Embodiments of the invention are generally directed to compensation for common mode signal swing. An embodiment of an apparatus includes a connector for the transfer of the data, the connector including connections for a first set of one or more conductors; a receiver for the reception of data via the connector, the received data including a first signal and a second signal transmitted via the set of one or more conductors, the second signal being a common mode signal modulating the first signal, the receiver including an amplifier to amplify the received data with a positive gain; and a common mode compensation circuit to compensate for a voltage swing of the common mode signal in the amplified received data. The common mode compensation circuit is to sense the common mode signal, amplify the sensed common mode signal with a negative gain, and feed back the amplified common mode to output nodes of the receiver.
Public/Granted literature
- US20150288397A1 COMPENSATION SCHEME FOR MHL COMMON MODE CLOCK SWING Public/Granted day:2015-10-08
Information query