Optics: image projectors – Miscellaneous
Reexamination Certificate
2002-12-20
2004-09-21
Adams, Russell (Department: 2851)
Optics: image projectors
Miscellaneous
C353S042000, C353S121000, C725S109000, C725S123000
Reexamination Certificate
active
06793352
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to control of a projector using a mobile terminal which performs communication by wireless connection.
2. Description of the Related Art
FIG. 15
is a configuration diagram illustrating an example of the conventional projector system connected to a network. In
FIG. 15
, a projector
20
, a notebook-sized personal computer
30
, a server
40
, desktop personal computers
51
,
52
,
53
, and
54
are individually connected to a network
10
. Furthermore, tablets
61
,
62
,
63
, and
64
are directly connected to the projector
20
.
Control information and projection data from the notebook-sized personal computer
30
are sent to the projector
20
through the network
10
, and the data is projected onto the projection screen
70
. Also, the notebook-sized personal computer
30
sends the control information to the server
40
or desktop personal computers
51
,
52
,
53
, and
54
through the network
10
. Projection data stored in the server
40
or the desktop personal computers
51
,
52
,
53
, and
54
is sent to the projector
20
based on the control information.
Accordingly, for example, by just bringing the projector
20
and the notebook-sized personal computer
30
in a conference room, projection data stored in the desktop personal computers
51
,
52
,
53
, and
54
, or the server
40
, which are located in another place, can be projected by desire.
Further, from the tablets
61
,
62
,
63
, and
64
, drawings can be directly entered and projected, or lines can be inserted onto the projected data.
Furthermore, if the projection data has been sent to the projector
20
in advance, the projection data can be projected in a disconnected state to the network
10
or independent of the notebook-sized personal computer
30
.
The conventional projector system is configured as described above, and it is possible to project projection data stored in a personal computer or a server located apart from the place where the projector is located. Thus the projector system contributes to share information and to increase projection efficiency.
However, the operation control of the projector
20
is performed directly from the operation of the projector
20
itself, or by the direction from the notebook-sized personal computer
30
. Thus only the person sitting near the projector
20
or the notebook-sized personal computer
30
can control the projector. Also, though a projector has been operated by a remote control so far, the projector and the remote control have not been connected in two-way communication. Thus projection data or the like cannot be sent/received from/to these devices, so that the image projected on the projector cannot be monitored on the remote control.
SUMMARY OF THE INVENTION
The present invention is made in view of the above-described problems, and it is an object of the present invention to provide a projector control system and control method in which projector projection control and/or projection data sending/receiving or transfer control can be performed at a remote place from the projector, and better operationality is achieved.
The projector wireless control system and control method according to the present invention are as follows:
(1) According to a first aspect of the present invention, there is provided a projector wireless control system including: a projector which includes a network module for communicating with another device, and projects projection data; and a mobile terminal which includes a projector control function for controlling operation of the projector, and is wirelessly connected to the projector, allowing two-way communication with the projector through the network module. By this means, it becomes possible to control the projector with respect to a preset operation from an arbitrary place which is remote from the projector in a communicable area.
(2) In a projector wireless control system according to the first aspect of the present invention, the mobile terminal may include a function of causing the projector to project projection data which the projector has possessed. By this means, the mobile terminal can cause the projector to execute projection.
(3) In a projector wireless control system according to the first aspect of the present invention, the mobile terminal may include a function of sending projection data wirelessly to the projector. By this means, it becomes possible to send projection data from the mobile terminal to the projector.
(4) In a projector wireless control system according to the first aspect of the present invention, the mobile terminal may include a display unit, and has a function of sending wirelessly an image to be displayed on the display unit to the projector and causing the sent image to be projected on the projector. By this means, it becomes possible to project the data while confirming the projection data content.
(5) In a projector wireless control system according to the first aspect of the present invention, the mobile terminal may include a display unit, and has a function of receiving wirelessly an image, which is projected on the projector, and displaying the received image on the display unit. By this means, an operator of the mobile terminal can confirm current projection content of the projector.
(6) In a projector wireless control system according to the first aspect of the present invention, a projection data storage server which is connected to the projector through the network module, wherein the mobile terminal has a function of causing the projector to send/receive projection data to/from the storage server. By this means, it becomes possible to operate sending/receiving a file between the projector and the storage server from the mobile terminal.
(7) In a projector wireless control system according to the first aspect of the present invention, the mobile terminal may include a remote control function of performing projection operation of the projector. By this means, projection of the projector can be operated by remote control using the mobile terminal.
(8) In a projector wireless control system according to the first aspect of the present invention, the mobile terminal may include a tablet function of entering a drawing capable of being projected by the projector. By this means, a drawing can be entered from the mobile terminal into the projector to be projected.
(9) In a projector wireless control system according to the first aspect of the present invention, the mobile terminal may include a keyboard function of entering information to the projector. By this means, the mobile terminal can be used as a keyboard of the projector.
(10) In a projector wireless control system according to the first aspect of the present invention, a plurality of the mobile terminals may be provided for one unit of the projector. By this means, a plurality of persons can perform projection operations, etc. individually on one unit of projector in a conference, etc.
(11) In a projector wireless control system according to the first aspect of the present invention, a plurality of the projectors may be provided for one unit of the mobile terminal. By this means, a plurality of projectors can be projected simultaneously or controlled simultaneously by one unit of mobile terminal.
(12) According to a second aspect of the present invention, there is provided a projector wireless control method of controlling a projector wirelessly, which uses a system comprising: a projector which includes a network module for communicating with another device and projects projection data; and a mobile terminal which includes a projector control function for controlling operation of the projector, and is wirelessly connected to the projector for allowing two-way communication with the projector through the network module,
wherein the method comprises a step of wirelessly sending a control signal from the mobile terminal to the projector to control the projector. By this means, it becomes possible to control the projector with res
Akaiwa Shoichi
Karasawa Toru
Nomizo Tomohiro
Adams Russell
Oliff & Berridg,e PLC
Sever Andrew
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