Device status notification device

• US 8,122,126 B2
• Filed: 10/19/2009
• Issued: 02/21/2012
• Est. Priority Date: 10/27/2008
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Mukaiyama, Masanori, Okada, Hiromu, Shigeta, Takahiro
• Primary Examiner(s): Etienne, Ario
• Assistant Examiner(s): NANO, SARGON N
• Application Number:
  US12/581,720
• Publication Number:
  US 20100106829A1
• Time in Patent Office: 855 Days
• Field of Search: 709/223, 709/224, 709/227, 709/203
• US Class Current: 709/224
• CPC Class Codes: G06F 3/1203 Improving or facilitating administration, e.g. print management
• CPC Class Codes: G06F 3/1229 Printer resources management or printer maintenance, e.g. device status, power levels
• CPC Class Codes: G06F 3/1285 Remote printer device, e.g. being remote from client or server
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]
• CPC Class Codes: H04L 43/0817 by checking functioning
• CPC Class Codes: H04L 43/103 with adaptive polling, i.e. dynamically adapting the polling rate

Abstract

There is provided a device status notification device that notifies a notification destination, which is connected to a network, of a status change in a device connected to the network through the network. The device status notification device includes a notification destination information table in which a notification destination, to which the status change in the device is notified in a case where there is the status change in the device, is registered, a notification destination validity checking unit that checks whether the notification destination registered in the notification destination information table exists with validity, and a registration deleting unit that deletes the notification destination, of which valid existence cannot be checked by the notification destination validity checking unit, from the notification destination information table.

Claims

1. A device status notification device comprising a non-transitory computer-readable medium encoded with instructions for notifying a notification destination, which is connected to a network, of a status change in a device connected to the network through the network, and further comprising:

a notification destination information table in which a notification destination, to which the status change in the device is notified in a case where there is the status change in the device, is registered;

a notification destination validity checking unit that checks whether the notification destination registered in the notification destination information table exists with validity; and

a registration deleting unit that deletes the notification destination, of which valid existence cannot be checked by the notification destination validity checking unit, from the notification destination information table, wherein

the notification destination validity checking unit checks whether the notification destination registered in the notification destination information table exists with validity at predetermined time intervals, and

the notification destination validity checking unit issues the reply request up to a regulated number of times to the notification destination in a case where the reply from the notification destination cannot be acquired for the issuing of the reply request and determines that the notification destination, from which the reply cannot be acquired for the issuing of the reply request exceeding the regulated number of times, does not exist with validity.

2. The device status notification device according to claim 1, wherein the notification destination validity checking unit determines that the notification destination does not exist with validity in a case where the notification destination validity checking unit issues a reply request for requesting a reply to the notification destination registered in the notification destination information table and cannot acquire the reply for the reply request.

3. The device status notification device according to claim 1, wherein the notification destination validity checking unit checks whether the notification destination registered in the notification destination information table exists with validity when notifying of the status change in the device.

5. The device status notification device according to claim 1, wherein the device status notification device is arranged in the device of which the status change is monitored.

6. The device status notification device according to claim 1, wherein the device status notification device is a proxy server and is connected to the device of which the status change is monitored through the network.

4. A device status notification device comprising a non-transitory computer-readable medium encoded with instructions for notifying a notification destination, which is connected to a network, of a status change in a device connected to the network through the network, and further comprising:

a notification destination information table in which a notification destination, to which the status change in the device is notified in a case where there is the status change in the device, is registered;

a notification destination validity checking unit that checks whether the notification destination registered in the notification destination information table exists with validity; and

a registration deleting unit that deletes the notification destination, of which valid existence cannot be checked by the notification destination validity checking unit, from the notification destination information table, wherein

the notification destination validity checking unit checks whether the notification destination registered in the notification destination information table exists with validity at predetermined time intervals,

the notification destination validity checking unit does not consecutively issue the next reply request and counts up the number of times of checking when the reply cannot be acquired after elapse of a predetermined time from issuing of the reply request to the notification destination, and

the registration deleting unit deletes the notification destination from the notification destination information table in a case where the number of times of the checking exceeds a regulated number of times.