Ntt Docomo, Inc.

Kazuma Nozawa

Tomohiro Nakagawa

Hiroshi Aono

Masayuki Terada

Kazuya Sasaki

Takuya Doumen

Keita Hasegawa

In response to a request from a first device (), a management unit () transmits a data encryption key to the first device () through a secure environment between the management unit () and the first device () when integrity of a first application running in an isolated calculation area is verified. The first device () encrypts target data using the data encryption key and transmits encrypted target data to a second device () through the first application. In response to a request from the second device (), the management unit () transmits a data encryption key to the second device () through a secure environment between the management unit () and the second device () when integrity of a second application running in an isolated calculation area is verified. The second device () decrypts the encrypted target data using the data encryption key through the second application.

Information processing device and information processing system

To provide an information distribution management device configured to analyze distribution in consideration of the number of unique users. An advertisement management deviceincludes a heat map generation unitconfigured to generate a heat map indicating the necessity of advertisement distribution to a designated target layer for each of a plurality of units of digital signageand for each time slot, a reach curve generation unitconfigured to function as a viewing estimation unit that estimates the viewing frequency of unique users of the target layer for the digital signageto which the heat map is applied, and an evaluation unitconfigured to evaluate the heat map on the basis of the number of viewers who are unique users of the target layer (equivalent to viewing frequency) and the total number of viewers who are all users to whom the heat map is applied (viewing frequency).

Information distribution management device

Growing community of inventors

Chiyoda-ku, Japan

Kazuma Nozawa