Patent ID: 7933412
Filing Date: 2011-04-26
Classification: H04L,H04W

Abstract:
1. An in-vehicle communication system consisting of first and second communication terminals connected with a wireless network, wherein said first communication terminal comprises: a content readout unit reading contents required by said second communication terminal; a content encryption unit encrypting the contents read by said content readout unit using a first key acted on by identification information about a vehicle; a content transmission unit sending the contents encrypted by said content encryption unit to said second communication terminal, the contents including movies and music for distribution within the vehicle, a calculation unit calculating the total of transfer rates of contents communicated with said second communication terminal, a capability decision unit making a decision as to whether said total of transfer rates calculated by said calculation unit exceeds a transfer capability of said wireless network, and a transfer rate change unit changing the transfer rates of the contents sent by said content transmission unit according to priorities of said contents in a case where said capability decision unit has determined that the total of the transfer rates has exceeded the transfer capability of said wireless network, and wherein said second communication terminal comprises: a content reception unit receiving the contents sent by said first communication terminal; a content decryption unit decrypting the contents received by said content reception unit using said first key; and an output control unit controlling outputting of the contents decrypted by said content decryption unit and wherein said content reception unit of said second communication terminal receives said first key when a decision is made that said first communication terminal is located within a predetermined short distance; and wherein the first communication terminal and the second communication terminal are installed within a vehicle, and the first communication terminal communicates with the second communication terminal within the vehicle to provide secure, in-vehicle wireless content distribution, wherein the second communication terminal is installed within the vehicle behind the driver or passenger seat of the vehicle to permit users on the rear seats of the vehicle to view and listen to the movies and music and wherein said identification information is a production number of the vehicle, a plate number of the vehicle, an engine key number, or a user's driver's number.