Resources Contact Us Home
DC balance compensation for AC-coupled circuits

Image Number 2 for United States Patent #7620121.

A receiver has a first input port and a second input port both coupled to a differential amplifier through first and second input capacitors. A bias circuit coupled to the core side of the first input capacitor and to the core side of the second input capacitor is configured to provide a selected voltage to at least one of the first input and the second input of the differential amplifier. In one embodiment, a common mode bias circuit provides a common mode voltage to both inputs of a differential amplifier. In a particular embodiment, a run length detector monitors the output of the differential amplifier and provides a run length feedback signal or an average bit density feedback signal to the set the selected voltage between periods of data reception.

  Recently Added Patents
Electronic device
Changing sound alerts during a messaging session
Method and system for processing dictated information
Golf club cover
Managing job execution
Identifying conceptually related terms in search query results
Treatment of cancer using the sodium salt of a benzoic acid derivative
  Randomly Featured Patents
Dolphin automobile air freshener
Transmission path between nearby telephone central offices
Low-calorie edible material like pate or mousse
Refrigerant hose
Printer head for a dot line printer
Universal dumpster
Apparatus and methods for tool(s) to work on building surface(s)
Method and system for multiple pass video coding
Mooring and cargo transfer system for difficult handling cargo
Connecting component