CA2401911A1 - Computer system, computer system control method, and terminal and recording medium - Google Patents
Computer system, computer system control method, and terminal and recording medium Download PDFInfo
- Publication number
- CA2401911A1 CA2401911A1 CA002401911A CA2401911A CA2401911A1 CA 2401911 A1 CA2401911 A1 CA 2401911A1 CA 002401911 A CA002401911 A CA 002401911A CA 2401911 A CA2401911 A CA 2401911A CA 2401911 A1 CA2401911 A1 CA 2401911A1
- Authority
- CA
- Canada
- Prior art keywords
- control group
- control
- group
- terminal
- computer system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/62—Wavelength based
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
Abstract
Consistency of shared information stored in the respective terminals is maintained, while achieving a lightening in processing load in respective terminals. A plurality of terminals are mutually connected via a network, and an area control group is constructed from the plurality of terminals. Moreover, the construction is such that the terminals belong to one or a plurality of control groups. Regarding the area control group, there are one or a plurality of terminals within the plurality of terminals which constitute the area control group, and by selecting these as relay terminals to relay shared information within the area control group, and performing update control of shared information via these relay terminals, consistency of the shared information stored in the respective terminals can be achieved while lightening the processing load in the respective terminals.
Claims (70)
1. A computer system with a plurality of terminals mutually connected via a network, and a control group constructed from a plurality of said terminals, wherein the construction is such that said terminals belong to an arbitrary single or plurality of control groups, wherein said control group functions as a relay terminal where one or a plurality of terminals within the plurality of said terminals which constitute said control group relay information within said control group.
2. A computer system according to claim 1, wherein one or a plurality of relay terminals of said relay terminals function as an inter-group relay terminal which relays information between the other of said control groups.
3. A computer system according to claim 1, wherein in the case where the number of said terminals belonging to said control group becomes less than a previously set minimum construction terminal number, said terminals belonging to an other control group different to said control group are made to belong to said control group.
4. A computer system according to claim 1, wherein said terminal can participate with an arbitrary control group to which it belongs, or can disengage from an arbitrary control group to which it belongs.
5. A computer system according to claim 1, wherein said terminal belonging to one of said control groups shares information unique to said control group.
6. A computer system according to claim 5, wherein after said control group has been once constructed, said terminal continues to maintain said unique information until said control group disappears.
7. A computer system according to claim 1, wherein in the case where the number of said terminal belonging to said control group becomes less than a previously set minimum construction terminal number, a previously determined standby terminal which does not belong to any of the control groups is set so as to belong to said control group.
8. A computer system according to claim 2, wherein said inter-group relay terminal, when exchange of information is performed between an information exchange source control group being a control group to which said inter-group relay terminal belongs, and an information exchange destination control group being another of said control groups, is a control group other than said information exchange destination control group, and said information exchange is performed via one or a plurality of control groups which are capable of communication with both of said information exchange source control group and said information exchange destination control group.
9. A computer system according to claim 2, wherein said control group provides independently or in response to a request from another control group, a terminal belonging to said control group as said inter-group relay terminal.
10. A computer system according to claim 2, wherein between a plurality of said control groups, acquisition and exchange of information of respective control groups via said inter-group relay terminals, as well instructions and requests necessary for acquisition and exchange of said information can he performed.
11. A computer system according to claim 2, wherein between a plurality of said control groups, it is possible to arbitrarily modify the belonging destination of a terminal belonging to the respective control groups via said inter-group relay terminal.
12. A computer system according to claim 2, wherein a plurality of said control groups adopt a hierarchical structure, and said inter-group relay terminal belonging to said control group of a kth hierarchy (k: natural number) is made to belong to said control group of a (k + 1) th hierarchy.
13. A computer system according to claim 2, wherein a plurality of said control groups adopt a hierarchical structure, and said control group of a kth hierarchy (k: natural number) provides a terminal belonging to said kth hierarchy control group as said inter-group relay terminal, for said control group of a (k+1) th hierarchy
14. A computer system according to claim 12, wherein said control group of a kth hierarchy provides independently or in response to a request from said control group of said (k+1) th hierarchy, a terminal belonging to said kth hierarchy control group, as said inter-group relay terminal.
15. A computer system according to claim 13, wherein said control group of a kth hierarchy provides independently or in response to a request from said control group of said (k+1) th hierarchy, a terminal belonging to said kth hierarchy control group, as said inter-group relay terminal.
16. A computer system according to claim 12, wherein the terminal which is provided as said inter-group relay terminal, is selected based on processing ability of said terminal, or on a load condition of said terminal.
17. A computer system according to claim 13, wherein the terminal which is provided as said inter-group relay terminal, is selected based on processing ability of said terminal, or on a load condition of said terminal.
18. A computer system according to claim 1, wherein a plurality of said control groups adopts a hierarchical structure, and said control group of a kth hierarchy (k: natural number) belongs to a previously determined standby control group in the case where of said control groups of a (k+1) th hierarchy-the control group immediately above itself disappears, and regarding said control group of a (k+2) th hierarchy, said standby control group participates in the case where the control group immediately below itself disappears, and said control group is incorporated as the control group of the (k+1) th hierarchy in the case where there is a control group standing by.
19. A computer system according to claim 12, wherein a plurality of said control groups adopts a hierarchical structure of an mth hierarchy and the plurality of said control groups belonging to an nth hierarchy (1 <=
n < m), has the same hierarchy inter-group relay terminal which relays information between the other of said control groups within said nth hierarchy.
n < m), has the same hierarchy inter-group relay terminal which relays information between the other of said control groups within said nth hierarchy.
20. A computer system according to claim 12, wherein said hierarchical structure has a tree structure.
21. A computer system according to claim 13, wherein said hierarchical structure has a tree structure.
22. A computer system according to claim 18, wherein said hierarchical structure has a tree structure.
23. A computer system according to claim 19, wherein said hierarchical structure has a tree structure.
24. A computer system according to any one of claim 20 through claim 23, wherein a control group belonging to an uppermost hierarchy is singular.
25. A computer system according to claim 1, wherein said terminal when relaying said information within corresponding control groups, relays said information by simultaneous multicast transmission.
26. A computer system according to claim 1, wherein said control group is provided for a predetermined area of virtual reality which handles the application program.
27. A computer system according to claim 2, wherein said relay terminal and said inter-group relay terminal notify each other of a list of a plurality of terminals belonging to a control group to which the respective relay terminals belong, and version information of said list.
28. A computer system according to claim 2, wherein said inter-group relay terminal, in the case where normal communication is not occurring between other inter-group relay terminals, performs condition judgment communication in order to determine whether or not said other inter-group relay terminals are operating normally.
29. A computer system according to claim 28, wherein when said condition judgment communication is performed, in the case where, of the plurality of said other inter-group relay terminals which become the object of said condition judgment communication, an inter-group relay terminal not belonging to the upper hierarchy is not present, said condition judgment communication is prevented.
30. A control method for a computer system with a plurality of terminals mutually connected via a network, and a control group constructed from a plurality of said terminals, which controls such that said terminals belong to an arbitrary single or plurality of control groups, and selects within the plurality of said terminals which constitute said group, one or a plurality of said terminals as relay terminals which relay information within said control group.
31. A control method far a computer system according to claim 30, which makes one or a plurality of relay terminals of said relay terminals function as an inter-group relay terminal which relays information between the other of said control groups.
32. A control method for a computer system according to claim 30, which in the case where the number of said terminals belonging to said control group becomes less than a previously set minimum construction terminal number, makes said terminals belonging to an other control group different to said control group, belong to said control group.
33. A control method for a computer system according to claim 30, which makes said terminal participate with an arbitrary control group to which it belongs, or which disengages said terminal from an arbitrary control group to which it belongs.
34. A control method for a computer system according to claim 30, which shares information unique to said control group with said terminal belonging to one of said control groups.
35. A control method for a computer system according to claim 34, which after said control group has been once constructed, makes said terminal continue to maintain said unique information, until said control group disappears.
36. A control method for a computer system according to claim 30, which in the case where the number of said terminal belonging to said control group becomes less than a previously set minimum construction terminal number, makes a previously determined standby terminal which does not belong to any of the control groups, belong to said control group.
37. A control method for a computer system according to claim 31, wherein in said inter-group relay terminal, when exchange of information is performed between an information exchange source control group being a control group to which said inter-group relay terminal belongs, and an information exchange destination control group being another of said control groups, there is a control group other than said information exchange destination control group, and said method performs said information exchange via one or a plurality of control groups which are capable of communication with both of said information exchange source control group and said information exchange destination control group.
38. A control method for a computer system according to claim 31, which provides independently or in response to a request from another control group, a terminal belonging to respective control groups as said inter-group relay terminal.
39. A control method for a computer system according to claim 31, which performs between a plurality of said control groups, acquisition and exchange of information of respective control groups via said inter-group relay terminals, as well as performing instructions and requests necessary for acquisition and exchange of said information.
40. A control method for a computer system according to claim 3I, which between a plurality of said control groups, arbitrarily modifies the belonging destination of a terminal belonging to the respective control groups via said inter-group relay terminal.
41. A control method for a computer system according to claim 31, wherein a plurality of said control groups adopt a hierarchical structure, and which makes said inter-group relay terminal belonging to said control group of a kth hierarchy (k: natural number) belong to said control group of a (k + 1) th hierarchy.
42. A control method for a computer system according to claim 31, wherein a plurality of said control groups adopt a hierarchical structure, and which provides for said control group of a kth hierarchy (k: natural number) a terminal belonging to said kth hierarchy control group as said inter-group relay terminal, for said control group of a (k+1) th hierarchy.
43. A control method for a computer system according to claim 41, which provides for said control group of a kth hierarchy, independently or in response to a request from said control group of said (k+1) th hierarchy, a terminal belonging to said kth hierarchy control group, as said inter-group relay terminal.
44. A control method for a computer system according to claim 42, which provides for said control group of a kth hierarchy, independently or in response to a request from said control group of said (k+1) th hierarchy, a terminal belonging to said kth hierarchy control group, as said inter-group relay terminal.
45. A control method for a computer system according to any one of claim 41 to claim 44, which selects the terminal which is provided as said inter-group relay terminal, based on processing ability of said terminal, or on a load condition of said terminal.
46. A control method for a computer system according to claim 30, wherein a plurality of said control groups adopts a hierarchical structure, which makes said control group of a kth hierarchy (k: natural number) belong to a previously determined standby control group in the case where of said control groups of the (k+1) th hierarchy the control group immediately above said kth hierarchy control group disappears, and for said control group of the (k+2) th hierarchy, makes said standby control group participate in the case where the control group immediately below said (k+2) th hierarchy control group disappears, and incorporates said standby control group as the control group of the (k+1) th hierarchy in the case where there is a control group standing by.
47. A control method for a computer system according to claim 80, wherein a plurality of said control groups adopts a hierarchical structure of an mth hierarchy, which gives to the plurality of said control groups belonging to the nth hierarchy (1 <= n < m), the same hierarchy inter-group relay terminal which relays shared information between the other of said control groups within said nth hierarchy.
48. A control method for a computer system according to any one of claim 41 to claim 47, wherein said hierarchical structure has a tree structure.
49. A control method for a computer system according to claim 48, wherein a control group belonging to an uppermost hierarchy is singular.
50. A control method for a computer system according to claim 34, which when relaying said information within control groups corresponding to said terminal, performs relaying of said information by simultaneous multicast transmission.
51. A control method 5or a computer system according to claim 30, wherein said control group is provided for a predetermined area of virtual reality which handles the application program.
52. A control method for a computer system according to claim 31, which mutually notifies a list of a plurality of terminals belonging to a control group to which the respective relay terminals belong, and version information of said list, to said relay terminal and said inter-group relay terminal.
53. A control method for a computer system according to claim 31, which performs position judgment on said inter-group relay terminal, in the case where. normal communication is not occurring between other inter-group relay terminals, in order to determine whether or not said other inter-group relay terminals are operating normally.
54. A control method for a computer system according to claim 53, which when said condition judgment communication is performed, in the case where, of the plurality of said other inter-group relay terminals which become the object of said condition judgment communication, an inter-group relay terminal not belonging to the upper hierarchy is not present, prevents said condition judgment communication.
55. A recording medium recorded with a control program for a terminal capable of constructing a computer system by mutually connecting via a network, wherein said control program constructs a control group from a plurality of said terminals, controls such that said terminals belong to an arbitrary single or plurality of control groups and is recorded with a control program which selects within the plurality of said terminals which constitute said control group, one or a plurality of said terminals as relay terminals which relay information within said control group.
56. A recording medium according to claim 65, recorded with a control program which makes one or a plurality of relay terminals of said relay terminals function as an inter-group relay terminal which relays information between the other of said control groups.
57. A recording medium according to claim 55, recorded with a control program which, in the case where the number of said terminals belonging to said control group becomes less than a previously set minimum construction terminal number, makes said terminals belonging to an other control group digerent to said control group, belong to said control group.
58. A recording medium according to claim 55, recorded with a control program which makes said terminal participate with an arbitrary control group to which it belongs, or which disengages said terminal from an arbitrary control group to which it belongs.
59. A recording medium according to claim 55, recorded with a control program which makes said inter-group relay terminal belonging to said control group of a kth hierarchy (k: natural number) belong to said control group of a (k + 1) th hierarchy.
60. A recording medium according to claim 55, recorded with a control program which, after said control group has been once constructed, makes said terminal continue to maintain said unique information, until said control group disappears.
61. A recording medium according to claim 66, recorded with a control program which, in the case where the number of said terminal belonging to said control group becomes less than a previously set minimum construction terminal numbed sets a previously determined standby terminal which does not belong to any of the control groups, so as to belong to said control group.
62. A recording medium according to claim 5fi, recorded with a control program, wherein in said inter-group relay terminal, when exchange of information is performed between an information exchange source control group being a control group to which said inter-group relay terminal belongs, and an information exchange destination control group being another of said control groups, there is a control group other than said information exchange destination control group, sail said program performs said information exchange via one or a plurality of control groups which are capable of communication with both of said information exchange source control group and said information exchange destination control group.
63. A recording medium according to claim 56, recorded with a control program which selects the terminal which is provided as said inter-group relay terminal, based on processing ability of said terminal, or on a load condition of said terminal.
64. A recording medium according to claim 55, recorded with a control program which, in the case where the number of said terminal belonging to said control group becomes less than a previously set minimum construction terminal number, sets a previously determined standby terminal which does not belong to any of the control groups, so as to belong to said control group.
65. A recording medium according to claim 56, recorded with a control program which;
makes a plurality of said control groups a hierarchical structure, and provides from said control group of a kth hierarchy (k: natural number), a terminal belonging to said k th hierarchy control group as said inter-group relay terminal, for said control group of a (k+1) th hierarchy
makes a plurality of said control groups a hierarchical structure, and provides from said control group of a kth hierarchy (k: natural number), a terminal belonging to said k th hierarchy control group as said inter-group relay terminal, for said control group of a (k+1) th hierarchy
66. A recording medium according to claim 65, recorded with a control program which makes said control group of a kth hierarchy provide, independently or in response to a request from said control group of said (k+1) th hierarchy, a terminal belonging to said kth hierarchy control group, as said inter-group relay terminal.
67. A recording medium according to claim 55, recorded with a control program which;
makes a plurality of said control groups a hierarchical structure, and makes said control group of a kth hierarchy (k: natural number) belong to a previously determined standby control group in the case where of said control groups of a (k+1) th hierarchy the control group immediately above said kth hierarchy control group disappears, and makes said standby control group participate in said control group of a (k+2) th hierarchy, in the case where the control group immediately below the (k+2) th hierarchy control group disappears, and incorporates said standby control group as the control group of the (k+1) th hierarchy in the case where there is a control group standing by
makes a plurality of said control groups a hierarchical structure, and makes said control group of a kth hierarchy (k: natural number) belong to a previously determined standby control group in the case where of said control groups of a (k+1) th hierarchy the control group immediately above said kth hierarchy control group disappears, and makes said standby control group participate in said control group of a (k+2) th hierarchy, in the case where the control group immediately below the (k+2) th hierarchy control group disappears, and incorporates said standby control group as the control group of the (k+1) th hierarchy in the case where there is a control group standing by
68. A recording medium according to claim 56, recorded with a control program which makes said relay terminal and said inter-group relay terminal notify each other of a list of a plurality of terminals belonging to a control group to which the respective relay terminals belong, and version information of said list.
69. A recording medium according to claim 56, recorded with a control program which makes said inter-group relay terminal, in the case where normal communication is not occurring between other inter-group relay terminals, perform condition judgment communication in order to determine whether or not said other inter-group relay terminals are operating normally
70. A recording medium according to claim 62, recorded with a control program which, when said condition judgment communication is performed, in the case where, of the plurality of said other inter-group relay terminals which become the object of said condition judgment communication, an inter-group relay terminal not belonging to the upper hierarchy is not present, prevents said condition judgment communication.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2002/002194 WO2003077147A1 (en) | 2002-03-08 | 2002-03-08 | Computer system, computer system control method, terminal and recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2401911A1 true CA2401911A1 (en) | 2003-09-08 |
| CA2401911C CA2401911C (en) | 2011-11-08 |
Family
ID=27799902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2401911A Expired - Fee Related CA2401911C (en) | 2002-03-08 | 2002-03-08 | Computer system, computer system control method, and terminal and recording medium |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2002236270A1 (en) |
| CA (1) | CA2401911C (en) |
| WO (1) | WO2003077147A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6025801A (en) * | 1996-10-01 | 2000-02-15 | Philips Electronics North America Corporation | Video game with local updates mitigates latency effects in wide area network |
| JP2982728B2 (en) * | 1996-12-06 | 1999-11-29 | 日本電気株式会社 | Application sharing system |
| GB2330739A (en) * | 1997-09-26 | 1999-04-28 | Ibm | Transmitting data packets over a network to remote users of a multi-user computer game according to multi-user proximity groups |
| JP3547611B2 (en) * | 1998-04-01 | 2004-07-28 | 三菱電機株式会社 | Network game system |
| JP3571616B2 (en) * | 2000-05-23 | 2004-09-29 | エヌ・ティ・ティ・コムウェア株式会社 | Data sharing method, terminal device, and recording medium |
| KR20020075394A (en) * | 2000-09-28 | 2002-10-04 | 에누.티.티. 코무웨아 가부시키가이샤 | Computer system, computer system control method, and terminal and recording medium |
-
2002
- 2002-03-08 CA CA2401911A patent/CA2401911C/en not_active Expired - Fee Related
- 2002-03-08 AU AU2002236270A patent/AU2002236270A1/en not_active Abandoned
- 2002-03-08 WO PCT/JP2002/002194 patent/WO2003077147A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| AU2002236270A1 (en) | 2003-09-22 |
| WO2003077147A1 (en) | 2003-09-18 |
| CA2401911C (en) | 2011-11-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150309 |