PROJECTOR, PROJECTOR SYSTEM, AND CONTROL METHOD

• US 20110066671A1
• Filed: 09/13/2010
• Published: 03/17/2011
• Est. Priority Date: 09/15/2009
• Status: Active Grant

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Motohashi, Hiroomi
• Granted Patent: US 8,688,811 B2
• Time in Patent Office: Days
• US Class Current: 709/201
• CPC Class Codes: G03B 21/006 using LCD's
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04L 61/5076 Update or notification mechanisms, e.g. DynDNS
• CPC Class Codes: H04L 67/34 involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416

Abstract

A projector connected to a terminal device via a network includes: a confirming unit to confirm whether an IP address has been changed; a creating unit to create an executable file for executing image transfer software using a changed IP address, if the IP address is confirmed to have been changed; a delivering unit to deliver the executable file in response to a request from the terminal device; a receiving unit to receive, from the terminal device in which the image transfer software has been run by the executable file, a connection based on the changed IP address and receive a transfer of image information on an image being displayed in the terminal device; and a projecting unit to project the image being displayed in the terminal device using the image information.

Claims

1. A projector connected to a terminal device via a network, comprising:

a confirming unit configured to confirm whether an IP address has been changed;

a creating unit configured to create an executable file for executing image transfer software by using a changed IP address that is the IP address that has been changed, if the IP address is confirmed to have been changed;

a delivering unit configured to deliver the executable file in response to a request from the terminal device;

a receiving unit configured to receive, from the terminal device in which the image transfer software has been run by the executable file, a connection based on the changed IP address and receive a transfer of image information that is information on an image being displayed in the terminal device; and

a projecting unit configured to project the image being displayed in the terminal device by using the image information.

2. The projector according to claim 1, wherein, if the IP address is confirmed to have been changed, the creating unit creates the executable file by creating a configuration file in which the changed IP address is described and appending the configuration file to a main file that refers to the configuration file and executes the image transfer software.

3. The projector according to claim 2, wherein, the creating unit creates the executable file by compressing an execution instruction file in which a name of the main file is described, the configuration file, and the main file to create compressed data, and appending, to the compressed data created, unzipping software that unzips the compressed data and executes a file having the name described in the execution instruction file unzipped.

4. The projector according to claim 1, wherein, the executable file created is a file that is deleted upon termination of a connection based on the changed IP address.

5. The projector according to claim 1, wherein, as an initial screen, the projecting unit projects an image in which the changed IP address or information based on the changed IP address has been reflected.

6. The projector according to claim 5, wherein, in the initial screen, the projecting unit projects the image in which authentication information used when delivery of the executable file is requested by the terminal device has been further reflected.

7. A projector system comprising:

a projector connected to a terminal device via a network and including;

a confirming unit configured to confirm whether an IP address has been changed;

a creating unit configured to create an executable file for executing image transfer software by using a changed IP address that is the IP address that has been changed, if the IP address is confirmed to have been changed;

a delivering unit configured to deliver the executable file in response to a request from the terminal device;

a receiving unit configured to receive, from the terminal device in which the image transfer software has been run by the executable file, a connection based on the changed IP address and receive a transfer of image information that is information on an image being displayed in the terminal device; and

a projecting unit configured to project the image being displayed in the terminal device by using the image information;

the terminal device including;

a requesting unit configured to request the projector to deliver the executable file;

an executing unit configured to execute the image transfer software using the executable file; and

a transfer unit configured to connect to the projector based on the changed IP address and transfer the image information on the image being displayed on a display unit.

8. The projector system according to claim 7, wherein, based on an input of an end operation from an input unit, the transfer unit terminates the connection with the projector and deletes the executable file.

9. A control method executed in a projector connected to a terminal device via a network, the control method comprising:

confirming, by a confirming unit, whether an IP address has been changed;

creating, by a creating unit, an executable file for executing image transfer software by using a changed IP address that is the IP address that has been changed, if the IP address is confirmed to have been changed;

delivering, by a delivering unit, the executable file in response to a request from the terminal device;

receiving, by a receiving unit, from the terminal device in which the image transfer software has been run by the executable file, a connection based on the changed IP address and a transfer of image information that is information on an image being displayed in the terminal device; and

projecting, by a projecting unit, the image being displayed in the terminal device by using the image information.