Information processing apparatus, information processing method and information processing program for transmitting data to external apparatus for communication of information on device

• US 20010023444A1
• Filed: 02/22/2001
• Published: 09/20/2001
• Est. Priority Date: 02/23/2000
• Status: Abandoned Application

• Current Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Original Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Inventors: Torii, Minoru
• Application Number:
  US09/789,642
• Publication Number:
  US 20010023444A1
• Time in Patent Office: Days
• US Class Current: 709/228
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/164 Adaptation or special uses of UDP protocol
• CPC Class Codes: H04L 69/165 Combined use of TCP and UDP protocols; selection criteria therefor

Abstract

The invention provides a network management system in which the server and the client switch the data transmission method of connection type and that of connectionless type according to the size of the transmitted data, thereby selectively using the packet of datagram type and that of data stream type, thus achieving high-speed data communication.

Claims

1. An information processing apparatus for transmitting data to an external apparatus for communication of information on a device, comprising:

calculation means for calculating the size of data to be transmitted; and

connection control means for judging, according to the data size calculated by said calculation means, whether the communication to said external apparatus is executed by connection type or connectionless type.

2. An information processing apparatus according to

claim 1

, wherein said connection control means switches the communication of connection type and that of connectionless type based on the result of judgment.

3. An information processing apparatus according to

claim 1

, wherein the communication with said external apparatus is judged to be executed by connectionless type or connection type respectively when the data size calculated by said calculation means is smaller or larger than a predetermined size.

4. An information processing apparatus according to

claim 1

, wherein the communication with said external apparatus is judged to be executed by connectionless type or connection type respectively when the data size calculated by said calculation means can be transmitted or not by a packet of datagram type.

5. An information processing apparatus according to

claim 1

, further comprising:

acquisition means for acquiring, from a device connected through a network, information on said device;

wherein the device information acquired by said acquisition means is transmitted to said external apparatus.

6. An information processing apparatus according to

claim 2

, wherein said acquisition means acquire MIB information on the device, utilizing SNMP.

7. An information processing apparatus according to

claim 1

, wherein said acquisition means acquires information on a device selected by the user at said external apparatus;

and the information on the device selected by the user, acquired by said acquisition means, is transmitted to said external apparatus.

8. An information processing apparatus according to

claim 1

, further comprising display control means for causing a display unit to display the information on the device, received from said external apparatus.

9. An information processing apparatus according to

claim 8

, wherein:

the transmitted data are for requesting information on plural devices connected to a network; and

said display control means causes the display unit to display information on each of the plural devices.

10. An information processing apparatus according to

claim 8

, wherein:

the transmitted data are for requesting information on a device selected by the user among the plural devices; and

said display control means causes, according to the selection of the user, the display unit to display information on the device selected by the user.

11. An information processing apparatus according to

claim 8

, further comprising:

timer management means for starting a timer in response to the request of information on the device to said external apparatus; and

informing means for internally informing error information in case said timer management means shows a time-out state.

12. An information processing apparatus according to

claim 11

, wherein said time-out state is based on the characteristics of a function called at the request of the information on said device to said external apparatus.

13. An information processing apparatus according to

claim 11

, wherein the information from said external apparatus is disregarded after said timer management means shows a time-out state.

14. A network management system for data communication between a server and a client for communication of information on a device, comprising:

calculation means for calculating the size of data to be transmitted; and

connection control means for judging, according to the data size calculated by said calculation means, whether said server and said client executes the communication of said data by connection type or connectionless type with an external apparatus.

15. A network management system according to

claim 14

, wherein the communication with said external apparatus is judged to be executed by connectionless type or connection type respectively when the data size calculated by said calculation means is smaller or larger than a predetermined size.

16. A network management system according to

claim 14

, wherein the communication with said external apparatus is judged to be executed by connectionless type or connection type respectively when the data size calculated by said calculation means can be transmitted or not by a packet of datagram type.

17. A network management system according to

claim 14

, further comprising:

acquisition means for acquiring, from a device connected through a network, information on said device;

wherein the device information acquired by said acquisition means is transmitted from said server to said client.

18. A network management system according to

claim 14

, wherein said client includes display control means for causing a display unit to display the information on the device, received from said external apparatus.

19. An information processing method to be executed by an information processing apparatus for transmitting data to an external apparatus for communication of information on a device, the method comprising:

a calculation step of calculating the size of data to be transmitted; and

a connection control step of judging, according to the data size calculated by said calculation step, whether the communication to said external apparatus is executed by connection type or connectionless type.

20. An information processing method according to

claim 19

, wherein said connection control step switches the communication of connection type and that of connectionless type based on the result of judgment.

21. An information processing method according to

claim 19

, wherein the communication with said external apparatus is judged to be executed by connectionless type or connection type respectively when the data size calculated by said calculation step is smaller or larger than a predetermined size.

22. An information processing method according to

claim 19

, wherein the communication with said external apparatus is judged to be executed by connectionless type or connection type respectively when the data size calculated by said calculation step can be transmitted or not by a packet of datagram type.

23. An information processing method according to

claim 19

, further comprising:

an acquisition step of acquiring, from a device connected through a network, information on said device;

wherein the device information acquired by said acquisition step is transmitted to said external apparatus.

24. An information processing method according to

claim 20

, wherein said acquisition step acquires MIB information on the device, utilizing SNMP.

25. An information processing method according to

claim 19

, wherein said acquisition step acquires information on a device selected by the user at said external apparatus;

and

the information on the device selected by the user, acquired by said acquisition step, is transmitted to said external apparatus.

26. An information processing method according to

claim 19

, further comprising a display control step of causing a display unit to display the information on the device, received from said external apparatus.

27. An information processing method according to

claim 26

, wherein:

the transmitted data are for requesting information on plural devices connected to a network; and

said display control step causes the display unit to display information on each of the plural device.

28. An information processing method according to

claim 26

, wherein:

the transmitted data are for requesting information on a device selected by the user among the plural devices; and

said display control step causes, according to the selection of the user, the display unit to display information on the device selected by the user.

29. An information processing method according to

claim 26

, further comprising:

a timer management step of starting a timer in response to the request of information on the device to said external apparatus; and

an informing step of internally informing error information in case said timer management step shows a time-out state.

30. An information processing method according to

claim 29

, wherein said time-out state is based on the characteristics of a function called at the request of the information on said device to said external apparatus.

31. An information processing method according to

claim 29

, wherein the information from said external apparatus is disregarded after said timer management step shows a time-out state.

32. An information processing program to be executed by an information processing apparatus for transmitting data to an external apparatus for communication of information on a device, the program comprising, for execution by a computer;

a calculation step of calculating the size of data to be transmitted; and

a connection control step of judging, according to the data size calculated by said calculation step, whether the communication to said external apparatus is executed by connection type or connectionless type.

33. An information processing program according to

claim 32

, wherein said connection control step switches the communication of connection type and that of connectionless type based on the result of judgment.

34. An information processing program according to

claim 32

, wherein the communication with said external apparatus is judged to be executed by connectionless type or connection type respectively when the data size calculated by said calculation step is smaller or larger than a predetermined size.

35. An information processing program according to

claim 32

, wherein the communication with said external apparatus is judged to be executed by connectionless type or connection type respectively when the data size calculated by said calculation step can be transmitted or not by a packet of datagram type.

36. An information processing program according to

claim 32

, wherein said program further comprising an acquisition step of acquiring, from a device connected through a network, information on said device for execution by a computer;

and

the device information acquired by said acquisition step is transmitted to said external apparatus.

37. An information processing program according to

claim 33

, wherein said acquisition step acquires MIB information on the device, utilizing SNMP.

38. An information processing program according to

claim 32

, wherein said acquisition step acquires information on a device selected by the user at said external apparatus;

and

the information on the device selected by the user, acquired by said acquisition step, is transmitted to said external apparatus.

39. An information processing program according to

claim 32

, further comprising, for execution by a computer, a display control step of causing a display unit to display the information on the device, received from said external apparatus.

40. An information processing program according to

claim 39

, wherein:

the transmitted data are for requesting information on plural devices connected to a network; and

said display control step causes the display unit to display information on each of the plural devices.

41. An information processing program according to

claim 39

, wherein:

the transmitted data are for requesting information on a device selected by the user among the plural devices; and

said display control step causes, according to the selection of the user, the display unit to display information on the device selected by the user.

42. A memory medium storing an information processing program to be executed by an information processing apparatus for transmitting data to an external apparatus for communication of information on a device, the program comprising:

a calculation step of calculating the size of data to be transmitted; and

a connection control step of judging, according to the data size calculated by said calculation step, whether the communication to said external apparatus is executed by connection type or connectionless type.

43. A memory medium according to

claim 42

, wherein said connection control step switches the communication of connection type and that of connectionless type based on the result of judgment.

44. A memory medium according to

claim 42

, wherein the communication with said external apparatus is judged to be executed by connectionless type or connection type respectively when the data size calculated by said calculation step is smaller or larger than a predetermined size.

45. A memory medium according to

claim 42

, wherein the communication with said external apparatus is judged to be executed by connectionless type or connection type respectively when the data size calculated by said calculation step can be transmitted or not by a packet of datagram type.

46. A memory medium according to

claim 42

, wherein said program further comprises an acquisition step of acquiring, from a device connected through a network, information on said device for execution by a computer;

and

the device information acquired by said acquisition step is transmitted to said external apparatus.

47. A memory medium according to

claim 43

, wherein said acquisition step acquires MIB information on the device, utilizing SNMP.

48. A memory medium according to

claim 42

, wherein said acquisition step acquires information on a device selected by the user at said external apparatus;

and

the information on the device selected by the user, acquired by said acquisition step, is transmitted to said external apparatus.

49. A memory medium according to

claim 42

, further comprising, for execution by a computer, a display control step of causing a display unit to display the information on the device, received from said external apparatus.

50. A memory medium according to

claim 49

, wherein:

the transmitted data are for requesting information on plural devices connected to a network; and

said display control step causes the display unit to display information on each of the plural devices.

51. A memory medium according to

claim 49

, wherein:

the transmitted data are for requesting information on a device selected by the user among the plural devices; and

said display control step causes, according to the selection of the user, the display unit to display information on the device selected by the user.