Program, information processing method and device, and data structure

• US 20040243629A1
• Filed: 03/18/2004
• Published: 12/02/2004
• Est. Priority Date: 07/30/2002
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sakata, Haruhiko, Nomura, Takashi, Tominaga, Hiroyuki, Takahashi, Masayuki
• Granted Patent: US 7,840,593 B2
• Time in Patent Office: Days
• US Class Current: 707/104.1
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/30 Profiles
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services

Abstract

The present invention relates to a program, an information processing method and apparatus, and a data structure with which connection can be formed reliably between apparatuses having different capabilities. A service that can be provided to another party is represented by five dimensional parameters, namely, Access Method, Link Speed, X scale, Y scale, and Audio Codec. The values of the parameters are all represented by integer values. Access Method is represented by number 1 in the case of RTSP/TCP+RTP/UDP, and by number 2 in the case of HTTP tunnelling. Link Speed is normalized by kbps as a base unit, and X scale and Y scale are normalized by 16 pixels as a base unit. Audio Codec supports predetermined methods represented by numbers 0 to 6. The present invention can be applied to a personal computer.

Claims

1. A program for allowing a computer to execute:

a generating step of obtaining M-dimensional parameters relating to a service, the parameters being represented as numeric values, and generating detailed information representing content of the service by the parameters obtained.

2. A program according to claim 1,

wherein the generating step obtains the parameters normalized by base units.

3. A program according to claim 1,

wherein the generating step divides the parameters into a plurality of regions based on a main-factor parameter that is most likely to restrict coexistence with the other parameters, and obtains the parameters for each of the regions.

4. A program according to claim 3,

wherein the generating step obtains the M-dimensional parameters for each of the regions as one-dimensional integer values, respectively.

5. A program according to claim 4,

wherein the generating step represents the detailed information by a combination of the integer values and logic symbols.

6. A program according to claim 5,

wherein the generating step uses a first symbol representing selection of one of the plurality of integer values and a second symbol representing a set of the integer values.

7. A program according to claim 6,

wherein the generating step uses, as the second symbol, a start value representing a start of a range, an end value representing an end of the range, and a step defining a change width between the start value and the end value.

8. A program according to claim 1,

wherein the service is a service of sending or receiving data via a network.

9. A program according to claim 8,

wherein the generating step further obtains an identifier for identifying the service, and adds the identifier to the detailed information.

10. A program according to claim 9, further comprising:

a first sending step of sending the identifier to a specified destination via the network.

11. A program according to claim 10, further comprising:

a first receiving step of receiving a request for sending the detailed information associated with the identifier from the destination;

a second sending step of sending the detailed information to the destination via the network, based on the request received by the processing in the first receiving step;

a second receiving step of receiving the M-dimensional parameters included in the detailed information sent from the destination; and

a communicating step of communication with the destination based on the M-dimensional parameters received by the processing in the second receiving step.

12. A program according to claim 9, further comprising:

a first receiving step of receiving the identifier sent via the network.

13. A program according to claim 12, further comprising:

a requesting step of requesting sending of the identification information generated by a sender of the identifier received by the processing in the first receiving step, the identification information being the detailed information associated with the identifier;

a second receiving step of receiving the detailed information sent via the network from the sender of the identifier, based on the request by the processing in the requesting step;

a setting step of comparing the detailed information received by the processing in the second receiving step with the detailed information generated by the processing in the generating step, and setting the M-dimensional parameters that satisfy both of these sets of detailed information;

a sending step of sending the M-dimensional parameters generated by the processing in the setting step to the sender of the identifier; and

a communicating step of communicating with the sender based on the M-dimensional parameters sent by the processing in the sending step.

14. An information processing method for an information processing apparatus, comprising:

a generating step of obtaining M-dimensional parameters relating to a service, the parameters being represented as numeric values, and generating detailed information representing content of the service by the parameters obtained.

15. An information processing apparatus comprising:

generating means of obtaining M-dimensional parameters relating to a service, the parameters being represented as numeric values, and generating detailed information representing content of the service by the parameters obtained.

16. A data structure representing content of a service,

wherein the data structure includes M-dimensional parameters,

and wherein the parameters are represented by combinations of integer values and logic symbols.

17. A data structure according to claim 16,

wherein the logic symbols include a first symbol representing selection of one of a plurality of integer values and a second symbol representing a set of integer values.

18. A data structure according to claim 17,

wherein the second symbol includes a start value representing a start of a range, an end value representing an end of the range, and a step defining a change width between the start value and the end value.

19. A data structure according to claim 16,

wherein the data structure further includes an identifier number for identifying the service.