Network system of projector

• US 20050160479A1
• Filed: 01/11/2005
• Published: 07/21/2005
• 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
• Granted Patent: US 7,865,932 B2
• Time in Patent Office: Days
• US Class Current: 726/16
• 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 network system, comprising:

an information terminal apparatus;

a projector connectable to the information terminal apparatus via a network,

the information terminal apparatus including a host information terminal apparatus to supply image data to the projector by employing a wireless LAN, and a client information terminal other than the host information terminal apparatus and when a network connection between the information terminal apparatus and the projector is established, the image data is commonly used between the information terminal apparatus.

2. The network system as claimed in claim 1

the projector including:

a password production unit to produce a password used to establish the network connection with respect to the information terminal apparatus; and

a projection unit to project both the password and a specific code of the projector when a power supply of the projector is turned ON.

3. The network system as claimed in claim 1,

the network connection between the projector and the information terminal apparatus being established by inputting both the password and the specific code, which have been projected, into the information terminal apparatus.

4. The network system as claimed in claim 1

the password production unit producing the password in an irregular manner when the power supply of the projector is turned ON.

5. The network system as claimed in claim 1

the information terminal apparatus further including an information display area which is required for the network connection with respect to the projector;

and

the information display area including at least a projector list to indicate projectors connectable to the network, a connect operation display portion, a shared file display portion, and a password input display portion.

6. The network system as claimed in claim 1

when the network connection between the information terminal apparatus and the projector is established,

since a predetermined operation is carried out with respect to the client information terminal apparatus, the client information terminal apparatus constitutes a host information terminal apparatus, and image information supplied from the information terminal apparatus is projected by the projector.

7. The network system as claimed in claim 1

when the network connection between the host information terminal apparatus and the projector is established,

a display area of both the specific code of the projector and the password is displayed outside an area of the projected image data.

8. The network system as claimed in claim 1

the network system corresponding to a connection using a wireless cryptographic communication;

and

the projector executing the wireless cryptographic communication with the host information terminal apparatus by employing the password.