Method, apparatus and system for providing pre-emphasis in a signal

Patent metadata

Field	Value
Publication number	US-9300331-B2
Application number	US-201213673856-A
Country	US
Kind code	B2
Filing date	Nov 9, 2012
Priority date	Nov 9, 2012
Publication date	Mar 29, 2016
Grant date	Mar 29, 2016

Abstract

A transmitter for generating a differential signal pair including a pre-emphasis component. In an embodiment, the transmitter comprises pre-driver circuitry including an input to receive a single-ended data signal. The differential transmitter further comprises a load circuit coupled between the input and a node coupled to an output of the pre-driver circuitry which corresponds to a constituent signal of the differential signal pair. In another embodiment, the load circuit is configurable to provide a signal path between the input and the node. A configuration of the load circuit allows for a type of pre-emphasis to be included in the constituent signal.

First claim

What is claimed is:

1. A transmitter comprising:
pre-driver circuitry including:
an input to receive a data signal;
a first output; and
a second output;

a driver stage coupled to the first output via a first node and coupled to the second output via a second node, the driver stage to receive via the first node a first signal of a first differential signal pair, to receive via the second node a second signal of the first differential signal pair, and to generate a second d…

Assignees

• Omnivision Tech Inc

Inventors

• Liu Min
• Koh Yun Hak
• Wu Charles Qingle

Classifications

• G09G2370/08

  Physics · mapped topic

• H04B1/04 Primary

  Electricity · mapped topic

• G09G5/006

  Physics · mapped topic

• H04L25/02

  Electricity · mapped topic

• H04N9/00

  Electricity · mapped topic