Patent ID: 6014227
Filing Date: 2000-01-11
Classification: H04N

Abstract:
An error diffusion method, comprising:converting S number of color space pixel image values to S number of error diffused color space pixel image values;storing said S number of error diffused color space pixel image values in a matrix array buffer memory of n by m storage locations, said buffer memory having a total number of storage locations defined by:S=(N times N+N)/2where N is the total number of nozzles in a single column of an inkjet printhead; gating n number of error diffused color space pixel image values from said buffer memory to said print head to form a column of ink droplet on a print medium, said n number of error diffused color space pixel image values being stored in a single column in the n by m matrix array buffer memory; andrepeating said steps of converting, storing and gating a sufficient number of times to enable said print head to form a complete swath of image information on said print medium.