Patent ID: 8665282
Filing Date: 2014-03-04
Classification: G09G

Abstract:
1. An image generating apparatus, comprising: a storage configured to have first and second buffers each capable of storing an image of one frame; a write buffer selecting unit configured to select, individually for each area forming a part of one frame to be written, a buffer to which an image of each area is to be written from among the first and second buffers, respectively; a writing unit configured to write an image of each area of each part of the one frame to a buffer selected individually for each area by the write buffer selecting unit, respectively; a read buffer selecting unit configured to select, individually for each area of each part forming an entirety of one frame to be read, a buffer from which an image of each area is to be read out from among the first and second buffers, respectively; a reading unit configured to read out at regular intervals an image in each area of each part of the entirety of the one frame from a buffer selected individually for each area by the read buffer selecting unit to generate an image frame; a read buffer retaining unit configured to retain readout information indicating from which one of the first and second buffers the reading unit is to read out an image for each area of one frame; and a read buffer updating unit configured to update the read buffer retaining unit so that the read buffer retaining unit retains readout information indicating an other buffer than a buffer which was read in the certain reading period for each area which has been written by the writing unit in the certain reading period, after reading of one frame in the certain reading period by the reading unit ends and before reading of a next frame reading period starts, wherein the write buffer selecting unit selects, individually for each area of each part of the one frame to be written by the writing unit in a certain frame reading period, an other buffer than a buffer from which each area is to be read out by the reading unit in the certain frame reading period, and obtains, from the read buffer retaining unit, information indicating which one of the first and second buffers is to be read by the reading unit for each area to be written by the writing unit, the read buffer selecting unit selects, among each area of the one frame to be read out in the certain reading period by the reading unit: the read buffer selecting unit obtains, from the read buffer retaining unit, information indicating which one of the first and second buffers is to be read by the reading unit for each area of the one frame, and each part of the one frame comprises less area than the entire frame area.