| 摘要 |
PURPOSE: A firmware updating method is provided to reduce a space required for update by calculating firmware update for blocks. CONSTITUTION: A method for providing a firmware from a firmware server to a device is as follows: a step of generating an edit script in which a difference between old and new version firmwares is described by comparing the old and new version firmwares crossed to an mxn matrix (S23); and a step of transferring the edit script to the device (S24). The step of generating the edit script is as follows: a step of defining an arrangement of the old and new version firmwares; a step of arranging the old and new version firmwares in the mxn matrix; a step of finding a coordinate in which the values of the old and new version firmwares are same to generate a diagonal line; a step of deducting a shortest path reaching from a starting point (0,0) of the mxn matrix to (m,n); and a step of coding the shortest path. [Reference numerals] (10) Firmware server; (50) Update device; (S21) Request information about a firmware version; (S22) Transmit the information about a firmware version; (S23) Generate an edit script by comparing firmwares; (S24) Transmit the edit script; (S25) Copy an old version firmware; (S26) Update the old version firmware to a new version firmware by using the edit script |
