Network system of projector

• US 8,646,036 B2
• Filed: 06/25/2012
• Issued: 02/04/2014
• Est. Priority Date: 01/21/2004
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Kubota, Shinji
• Primary Examiner(s): Poltorak, Peter
• Application Number:
  US13/531,868
• Publication Number:
  US 20120266225A1
• Time in Patent Office: 589 Days
• Field of Search: None
• US Class Current: 726/2
• CPC Class Codes: H04L 65/403 Arrangements for multi-party communication, e.g. for conferences data switching systems for conference H04L12/18; arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities H04M3/56; television conferencing systems H04N7/15
• CPC Class Codes: H04N 5/74 Projection arrangements for image reproduction, e.g. using eidophor
• CPC Class Codes: H04N 7/18 Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Abstract

A network system of a projector is provided in which a network connection is established between a plurality of information terminal apparatus and the projector, and an image data file owned by an information terminal apparatus can be commonly used. A network system of a projector is arranged by an information terminal apparatus and a projector connectable to the information terminal apparatus via a network. The information terminal apparatus is arranged by a personal computer which supplies image data to the projector, and personal computers which are connected to this personal computer by a wireless manner When the network connection is established between the personal computer and the projector, and when the network connection between the personal computer and the personal computers is established, the image data is commonly used among these personal computers.

Claims

1. A projector capable of communicating with an image supply apparatus supplying an image data via a network, the projector comprising:

a password production unit that outputs a correct password;

a network interface that receives an input password that is transmitted from the image supply apparatus to the projector; and

a projection unit that projects the correct password at a display position of a password on a screen;

wherein

after the input password matches the correct password, the display position of a password changes.

2. The projector according to claim 1 further comprising a storage unit that stores a specific code used by the image supply apparatus for establishing connection with the projector, the projection unit projects the specific code with the correct password.

3. The projector according to claim 1, the password production unit outputs the correct password by using a random number table.

4. The projector according to claim 1, the password production unit outputs the correct password when the projector is turned ON.

5. The projector according to claim 1, the projector further comprising a password production instructing unit that instructs the password production unit to output the correct password when an operation for outputting the correct password is received.

6. The projector according to claim 1, wherein

the projector is connected to the image supply apparatus by way of wireless communication.

7. The projector according to claim 1, wherein

the correct password is numerals of 4 digits.

8. A projector capable of communicating with an image supply apparatus supplying an image data via a network, the projector comprising:

a password production unit that outputs a correct password;

a network interface that receives a password that is transmitted from the image supply apparatus to the projector; and

a projection unit that projects the correct password on a screen;

wherein

after the password that has been transmitted from the image supply apparatus matches the correct password, the matched password is displayed at a different position on the screen from a previously displayed position of the correct password.

9. The projector according to claim 8 further comprising a storage unit that stores a specific code used by the image supply apparatus for establishing connection with the projector, the projection unit projects the specific code with the correct password.

10. The projector according to claim 8, the password production unit outputs the correct password by using a random number table.

11. The projector according to claim 8, the password production unit outputs the correct password when the projector is turned ON.

12. The projector according to claim 8, the projector further comprising a password production instructing unit that instructs the password production unit to output the correct password when an operation for outputting the correct password is received.

13. The projector according to claim 8, wherein

the projector is connected to the image supply apparatus by way of wireless communication.

14. The projector according to claim 8, wherein

the correct password is numerals of 4 digits.

15. A projector capable of communicating with an image supply apparatus supplying an image data via a network, the projector comprising:

a password production unit that outputs a correct password;

a network interface that receives an input password that is transmitted from the image supply apparatus to the projector; and

a projection unit that projects the correct password on a screen;

wherein

after the input password matches the correct password, the matched password is displayed at a different position on the screen from a previously displayed position of the correct password.

16. The projector according to claim 15 further comprising a storage unit that stores a specific code used by the image supply apparatus for establishing connection with the projector, the projection unit projects the specific code with the correct password.

17. The projector according to claim 15, the password production unit outputs the correct password by using a random number table.

18. The projector according to claim 15, the password production unit outputs the correct password when the projector is turned ON.

19. The projector according to claim 15, the projector further comprising a password production instructing unit that instructs the password production unit to output the correct password when an operation for outputting the correct password is received.

20. The projector according to claim 15, wherein

the projector is connected to the image supply apparatus by way of wireless communication.

21. The projector according to claim 15, wherein

the correct password is numerals of 4 digits.

22. A projector capable of communicating with an image supply apparatus supplying an image data via a network, the projector comprising:

a password production unit that outputs a correct password;

a network interface that receives a password that is transmitted from the image supply apparatus to the projector; and

a projection unit that projects the correct password at a display position of a password on a screen;

wherein

after the password that has been transmitted from the image supply apparatus matches the correct password, the display position of a password changes.

23. The projector according to claim 22 further comprising a storage unit that stores a specific code used by the image supply apparatus for establishing connection with the projector, the projection unit projects the specific code with the correct password.

24. The projector according to claim 22, the password production unit outputs the correct password by using a random number table.

25. The projector according to claim 22, the password production unit outputs the correct password when the projector is turned ON.

26. The projector according to claim 22, the projector further comprising a password production instructing unit that instructs the password production unit to output the correct password when an operation for outputting the correct password is received.

27. The projector according to claim 22, wherein

the projector is connected to the image supply apparatus by way of wireless communication.

28. The projector according to claim 22, wherein

the correct password is numerals of 4 digits.