Resources Contact Us Home
Semiconductor charge coupled device analog to digital converter

Image Number 2 for United States Patent #4136335.

A semiconductor charge coupled device (CCD) is provided with an array of auxiliary charge storage sites of successively decreasing binary digital storage capacities (1/2, 1/4, 1/8, 1/16, etc.) along the CCD propagation direction. These auxiliary sites sequentially subtract, from a propagating analog signal charge packet, successive amounts of charge ("1") vs. no charge ("0") corresponding to the presence vs. absence of correspondingly sufficient charge in the propagating analog packet. The resulting sequence of "1"'s and "0"'s provides a digital representation in the binary system of the analog signal charge packet.

  Recently Added Patents
Methods and devices for multiple-mode radio frequency synthesizers
Terminal and method of controlling the same
System and method for enhanced transaction payment
Integrated bug tracking and testing
Probe card holding apparatus with probe card engagement structure
Variable speed traffic control system
Detachably integrated battery charger for mobile cell phones and like devices
  Randomly Featured Patents
Optical attenuator providing controlled attenuation
Load-switching circuit for antiparallel thyristor networks and a tapped transformer
Apparatus and method for accurate, real-time measurement of pipeline gas
Liquid level detection gauge and associated methods
Process of shaping a metal alloy product
Heat sink material and method of manufacturing the heat sink material
Data processing system for data base management of matrix type data
Methods and apparatus for bandwidth recovery in a network
Methods and devices for providing power to network-based systems
Desaturase antigen of Mycobacterium tuberculosis