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Title:
INFORMATION PROCESSING SYSTEM, ELECTRONIC DEVICE, INFORMATION PROCESSING METHOD, INFORMATION PROCESSING PROGRAM, INFORMATION MANAGEMENT METHOD, AND INFORMATION UPDATING METHOD
Document Type and Number:
Japanese Patent JP2018205847
Kind Code:
A
Abstract:
To allow efficient completion of version upgrade of a controlled device by a control device or the like while also taking security into account.SOLUTION: An information processing system comprises a control device and a controlled device connected in communication with each other via a network. The control device performs encrypted communication to/from the controlled device and acquires identification information for determining necessity of update processing for update target information stored in the controlled device to determine the necessity of the update processing for the update target information. When the update processing is necessary, non-encrypted communication is performed to/from the controlled device, and update information for performing the update processing for the update target information is transmitted to the controlled device. In response, the controlled device transmits the identification information for determining the necessity of the update processing for the update target information stored in the controlled device to the control device by the encrypted communication. Also, it acquires the update information transmitted by the non-encrypted communication from the control device and performs the update processing for the update target information.SELECTED DRAWING: Figure 1

Inventors:
NAKAGAWA KATSUHIKO
Application Number:
JP2017107166A
Publication Date:
December 27, 2018
Filing Date:
May 30, 2017
Export Citation:
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Assignee:
RICOH CO LTD
International Classes:
G06F13/00; B41J29/00; B41J29/38; G06F8/60; G06F8/65; G06F9/445; H04N1/00
Attorney, Agent or Firm:
酒井 宏明