Resources Contact Us Home
Image reading apparatus and method

Image Number 2 for United States Patent #8130421.

An image reading apparatus for reading a document by causing an image sensor having a plurality of light receiving pixels to scan the document including an encoder configured to output pulses according to rotation of a motor, a generating unit configured to generate a read synchronizing signal for the image sensor based on the pulses, an obtaining unit configured to obtain first shading data corresponding to at least two data accumulation time points from the image sensor, and a storage unit configured to store the first shading data, wherein a function is generated with second shading data corresponding to a read data accumulation time point and is corrected on the basis of the first shading data.

  Recently Added Patents
Power management method for reducing power of host when turning off main monitor and computer system applying the same
Horizontal aggregations in a relational database management system
Techniques for distributed storage aggregation
Systems and methods for authorizing, authenticating and accounting users having transparent computer access to a network using a gateway device
High-resolution ranging and location finding using multicarrier signals
Method for manufacturing semiconductor device
Organic dual-gate memory and method for producing same
  Randomly Featured Patents
Wire stripper
Low profile mount for metal oxide varistor package with short circuit protection and method
Method for the preparation of pyrolytic boron nitride-clad double-coated article
Axially activated hemostasis valve with lumen size selection
Ignition distributor-breaker structure for internal combustion engines
Event-driven rule-based messaging system
Oxygen lancing for production of cement clinker
Ink jet printhead having intergral silicon filter
Method in the synchronization of a receiver, and a receiver
Allocation of a secondary band to expand the capacity of a primary band in a WLAN 802.11 system