Content delivery system

• US 20060064494A1
• Filed: 11/16/2005
• Published: 03/23/2006
• Est. Priority Date: 06/25/2003
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Fukui, Mitsuhiro
• Granted Patent: US 7,849,158 B2
• Time in Patent Office: Days
• US Class Current: 709/227
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/2416 Real-time traffic
• CPC Class Codes: H04L 47/35 by embedding flow control information in regular packets, e.g. piggybacking
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/303 Terminal profiles
• CPC Class Codes: H04L 67/561 Adding application-functional data or data for application control, e.g. adding metadata
• CPC Class Codes: H04L 67/564 Enhancement of application control based on intercepted application data
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04N 21/25816 involving client authentication restricting access to computer systems by authenticating users using a predetermined code G06F21/33; cryptographic authentication protocols H04L9/32; networks authentication protocols H04L63/08; authentication in wireless network security H04W12/06
• CPC Class Codes: H04N 21/25833 involving client hardware characteristics, e.g. manufacturer, processing or storage capabilities allocation of resources considering hardware capabilities in multiprogramming arrangements G06F9/5044; allocation of resources considering software capabilities in multiprogramming arrangements G06F9/5055
• CPC Class Codes: H04N 21/2662 Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities

Abstract

To provide a content delivery system, a content delivery server, an information processing terminal, a content delivery program and a content delivery method with which content can be delivered appropriately while accommodating variations in resource conditions. A content server receives a delivery request from an information processing terminal and a resource condition of that terminal, modifies content corresponding to the delivery request in accordance with the resource condition, and delivers the content. The information processing terminal extracts the resource condition, transmits the resource condition and/or a content delivery request to the content server, receives the content delivered from the content server, and executes the content.

Claims

1. A content delivery system comprising a content server and an information processing terminal that are connected via a network, wherein

the content server includes:

receiving means receiving a delivery request from the information processing terminal and a resource condition of that terminal;

modification means modifying content corresponding to the delivery request in accordance with the resource condition; and

delivery means delivering the content, and the information processing terminal includes;

extraction means extracting the resource condition;

transmitting means transmitting the resource condition and/or a content delivery request to the content server;

receiving means receiving the content delivered from the content server; and

execution means executing the content.

2. A content server comprising:

receiving means receiving a delivery request from the information processing terminal and a resource condition of that terminal;

modification means modifying content corresponding to the delivery request in accordance with the resource condition; and

delivery means delivering the content.

3. A content server according to claim 2, further comprising generation means generating QoS control information based on the resource condition received from the information processing terminal, wherein the modification means adds the QoS control information to the content, and the delivery means delivers the content to which the QoS control information has been added.

4. A content server according to claim 3, further comprising:

detection means detecting whether or not a QoS control program is stored in the information processing terminal; and

program sending means sending the QoS control program to the information processing terminal if it is found as a result of the detection that the QoS control program is not stored in the information processing terminal.

5. An information processing terminal comprising:

extraction means extracting a resource condition;

transmitting means transmitting the resource condition and/or a content delivery request to a content server;

receiving means receiving content delivered from the content server; and

execution means executing the content.

6. An information processing terminal according to claim 5, wherein the receiving means receives content to which QoS control information is added, and the execution means executes the content based on the QoS control information.

7. A content delivery program that causes a content server to execute the steps of:

receiving a delivery request from an information processing terminal and a resource condition of that terminal;

modifying content corresponding to the delivery request in accordance with the resource condition; and

delivering the content.

8. A content delivery program according to claim 7 further comprising the steps of:

detecting whether or not a QoS control program is stored in the information processing terminal;

delivering, if it is found as a result of the detection that the QoS control program is not stored in the information processing terminal, the QoS control program that causes the information processing terminal to execute a step of extracting the resource condition, a step of transmitting the resource condition to the content server, a step of receiving the content delivered from the content server and step of executing the content.

9. A content delivery method implemented by a content server and an information processing terminal that are connected via a network, wherein

the content server executing the steps of:

receiving a delivery request from the information processing terminal and a resource condition of that terminal;

modifying content corresponding to the delivery request in accordance with the resource condition; and

delivering the content, and

the information processing terminal executing the steps of;

extracting the resource condition;

transmitting the resource condition and/or a content delivery request to the content server;

receiving the content delivered from the content server; and

executing the content.