Resources Contact Us Home
Coding apparatus, coding method, program for executing the method, and recording medium storing the program

Image Number 8 for United States Patent #7688234.

A coding apparatus that codes video data using an arithmetic coding scheme such as the AVC standard includes an orthogonal transformation unit, a quantizer, an arithmetic coder, and a controller. The arithmetic coder includes a binarization unit, a binary arithmetic coder, and a code length predictor. The code length predictor outputs a predicted number of bits by evaluating a predictive function using, as the argument of the function, the bin size of the binary symbols generated from input data during coding. The controller controls the coding bit rate by changing the quantization scale of the quantizer on the basis of the predicted number of bits. The predictive function is defined such that the predicted number of bits increases as the bin size increases, and furthermore such that the polynomial degree of the function changes when the bin size exceeds a predefined threshold value.

  Recently Added Patents
Fire detector
System and method for managing self-refresh in a multi-rank memory
Using network labels without standard-defined syntax and semantics
Method and system for checking citations
Automated synchronization of design features in disparate code components using type differencing
Monitoring heap in real-time by a mobile agent to assess performance of virtual machine
Display screen with graphical user interface
  Randomly Featured Patents
Disk player, and turntable incorporating self-compensating dynamic balancer, clamper incorporating self-compensating dynamic balancer and spindle motor incorporating self-compensating dynamic
Method of manufacturing a curved array ultrasonic transducer assembly
Phase-compensating constant modulus algorithm
EMC protection circuit
Table assembly for a motor vehicle seat
Unique strain relief junction
Fuel injection control device
Apparatus and method for enhancing productivity of natural gas wells
Low current clearing back up fuse
Positioning accessory for camera-equipped wireless terminals