Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
2-stage A/D converter and image sensor using the same










Image Number 12 for United States Patent #7227490.

In a conventional CMOS image sensor, an A/D converter for performing A/D conversion at high-speed arranges the A/D converter elements in columns so as to operate in parallel, and has low resolution in the order of 9 or so bits. The present invention provides an A/D converter for an image sensor, which performs a part of the A/D conversion functions by using a noise cancellation circuit in columns and performs amplification simultaneously with this, thereby obtaining a high signal noise ratio (SNR) and implementing an A/D converter with a high resolution along with the A/D conversion section in a subsequent stage.








 
 
  Recently Added Patents
Gearbox housing
Image processing apparatus and image processing method
Memory device and method for repairing a semiconductor memory
Dual source mass spectrometry system
Bundled flexible cable with water resistant structure
Touch-sensitive device and communication device
Flexible lighting devices
  Randomly Featured Patents
Optically-augmented microwave imaging system and method
Hybrid cycle rotary engine
Arm wrestling device
Method and apparatus for measuring bent workpieces
Methods and means for treatment of osteoarthritis
Image display medium and image display apparatus
Use of IL-29 for treating a dengue virus infection
Biocidal composition and its use
Ladder bracket
Dispenser