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
Rendering control method in which a processor and a hardware accelerator can be used efficiently
Flasher type fish sonar
Glossing system for paper and paperboard coating
Inverted tooth chain sprocket with frequency modulated meshing
Network ID activated transmitter
Rate selection for an OFDM system
  Randomly Featured Patents
Baby trailer
Regulating winding structure for transformer
Stack register reference control bit in source operand of instruction
Aqueous ink, ink-jet recording method, ink cartridge, recording unit and ink jet recording apparatus
Integrated lighting and detector units
Bromination of m-ethyldiphenyl ether
Jump rope with thickened section
Wire-cut electrical discharge machine having wire electrode cutting device
Disk holder, disk alignment mechanism and disk drive
Strip tillage implement