Image display device and wireless communication system

• US 8,477,723 B2
• Filed: 03/12/2008
• Issued: 07/02/2013
• Est. Priority Date: 07/10/2007
• Status: Expired due to Fees

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Watanabe, Takashi, Ezaki, Toshihiro, Sakanishi, Yasuaki, Noguchi, Wataru
• Primary Examiner(s): Nguyen, Thai
• Application Number:
  US12/667,914
• Publication Number:
  US 20100182977A1
• Time in Patent Office: 1,938 Days
• Field of Search: 370/331, 370/328, 370/445, 455/442, 455/443, 345/156, 701/24, 701/49, 725/76, 340/974
• US Class Current: 370/331
• CPC Class Codes: H04N 21/2146 located in mass transportation means, e.g. aircraft, train or bus flight-deck installations for entertainment or communications B64D11/0015; arrangements specially adapted for transportation systems in broadcast systems H04H20/62; moving wireless networks H04W84/005
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 21/4788 communicating with other users, e.g. chatting arrangements for providing for computer conferences, e.g. chat rooms, to substation in data switching networks H04L12/1813; distributed application using peer-to-peer [P2P] networks H04L67/104
• CPC Class Codes: H04N 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 7/173 with two-way working, e.g. subscriber sending a programme selection signal

Abstract

The present invention includes a receiving antenna receiving information while changing plural different wireless base stations; a seat information acquiring unit acquiring position information of a destination seat paired; a wireless base station selecting unit selecting a wireless base station to be connected on the basis of position information; and a directivity switching unit changing directivity of the receiving antenna on the basis of position information, which transmits at least one of video information and audio information from a wireless base station to a user seated on the seat.

Claims

1. An image display device movable between seats, comprising:

a receiving antenna receiving information while changing a plurality of different wireless base stations;

a sensor unit for pairing with a destination seat and acquiring a location based on a position of the destination seat which has been paired to;

a wireless unit selecting one of the plurality of different wireless base stations to be connected based on the location;

a directivity switching unit changing directivity of the receiving antenna based on the location; and

a processing unit separating received AV information into video information and audio information, and sending the audio information to the destination seat.

2. The image display device of claim 1, further comprising:

the sensor unit automatically pairing with the destination seat and acquiring the location.

3. A wireless communication system, comprising:

an image display device having a receiving antenna receiving information while changing a plurality of different wireless base stations, and movable between seats, including;

a sensor unit for pairing with a destination seat and acquiring a location based on a position of the destination seat which has been paired to;

a wireless unit selecting one of the plurality of different wireless base stations to be connected based on the location; and

a directivity switching unit changing directivity of the receiving antenna based on the location;

a processing unit separating received AV information into video information and audio information, and sending the audio information to the destination seat; and

the destination seat including a path changing unit changing a reception path of audio information received from the wireless base station, wherein one of the plurality of different wireless base stations transmits at least one of video information and audio information to the image display device and the destination seat.

4. The wireless communication system of claim 3, comprising:

the destination seat including an audio output unit;

a wired transmission line connecting the image display device and an audio output unit of the destination seat; and

the path changing unit changing a path so as to output the audio information to the audio output unit via the wired transmission line.

5. The wireless communication system of claim 3, wherein the image display device further comprises:

the sensor unit automatically pairing with the destination seat and acquiring the location.

6. The system of claim 3, wherein the image display device comprises a location compare unit comparing the location with a previous location to determine if the image display device has moved from the previous location.

7. A wireless communication system, comprising:

an access point separating audio-video information into audio information and video information, the access point sending the separated audio information to a first receiving antenna of a destination seat and the separated video information to a second receiving antenna of an image display device;

wherein said access point is one of a plurality of access points;

the destination seat including a first sensor for transmitting a position of the destination seat;

the image display device receiving the separated video information while changing a plurality of different wireless base stations, the image display device including;

a second sensor for pairing with the destination seat and acquiring a location based on the position of the destination seat which has been paired to;

a wireless unit selecting one of the plurality of access points to be connected based on the location; and

a directivity switching unit changing directivity of the second receiving antenna based on the location.

8. The system of claim 7, wherein the image display device comprises a location compare unit comparing the location with a previous location to determine if the image display device has moved from the previous location.