Patent ID: 6188386
Filing Date: 2001-02-13
Classification: G09G

Abstract:
A data conversion apparatus comprising:a first memory and a second memory each for storing data having a n bits width and in which any data is stored;an address detecting means for detecting addresses of said first memory and said second memory based on input data at which data corresponding to said input data are stored;a data reading means for reading data stored at said detected addresses of said first memory and said second memory;a first data selecting means for selecting either of the data read from said first memory or the data read from said second memory based on said input data;a data extending means for extending said selected data to data having a 2.times.n bits width; anda second data selecting means for selecting either of the first data formed by connecting the data output from said first memory and the data output from said second memory or the second data of said extended data based on an input selection signal andoutputting data selected by said second data selecting means with respect to said input of the data.