JP2010226483A - Remote controller, and remote control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote controller and a remote control system, capable of easily connecting an external memory irrespective of the installation location of an external device being an object for remote control. <P>SOLUTION: The remote controller 40 for remote controlling a projector 10 includes a USB port 41 for connecting a USB memory M, and a wireless communication unit 46 for transmitting readout data read from the USB memory M to the projector 10 through wireless communication. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a remote controller and a remote control system for performing remote operation.

  Conventionally, a projector having a memory connection port to which a USB memory can be connected is known. When a USB memory is connected, this type of projector displays a list of images in the memory and can project images selected by the user using the operation panel or remote controller ( PC free function). With this function, it is possible to perform image projection with a single projector without the need for an external device such as a computer, so it is possible to easily carry equipment necessary for presentation and prepare for presentation (for example, non-patented) Reference 1).

Seiko Epson Corporation Ofrio Projector EMP-1825 EasyMP Usage Guide 43-58 "Presentation using PC Free"

  By the way, there are a portable type and a permanent type as a usage form of the projector. In the former case, the use of the PC-free function has a great advantage in that the equipment can be easily carried, but the latter case has a problem that it is difficult to connect a USB memory. Specifically, it is a problem that, because it is a permanent type, it is necessary to go to the place where the projector is installed, or in the case of the ceiling type, it is impossible to connect the USB memory itself. For this reason, although it was a convenient function, there existed a problem that it could not be used depending on the utilization form.

  In view of the above-described problems, an object of the present invention is to provide a remote controller and a remote control system capable of easily connecting an external memory regardless of the installation location of an external device to be remotely operated.

  The remote controller according to the present invention includes a memory connection unit for connecting an external memory, and a wireless transmission unit that transmits read data read from the external memory to an external device by wireless communication.

  According to this configuration, since the external memory (external storage device) can be connected to the remote controller, the external memory can be easily connected regardless of the installation location of the external device to be remotely operated. . Also, read data read from the external memory can be transmitted to the external device.

  The remote controller described above preferably further includes an operation unit having a plurality of operation buttons, and the wireless transmission unit preferably transmits an operation signal generated based on an operation of the operation unit to an external device by wireless communication. .

  According to this configuration, since the operation means is provided, various operations of the external device can be performed. Further, since an operation signal based on the operation of the operation means can be transmitted, a remote controller can be used as a normal external operation device.

  In the remote controller described above, it is preferable that the wireless transmission unit includes a plurality of wireless transmission units, and further includes a wireless transmission unit switching unit for switching the plurality of wireless transmission units.

According to this configuration, the wireless transmission means to be used can be switched from a plurality of wireless transmission means as necessary.
As the plurality of wireless transmission means, communication using light, radio waves, or sound waves can be used.

  In the remote controller described above, it is preferable that the wireless transmission unit switching unit switches a plurality of wireless transmission units based on an operation of a predetermined key included in the operation unit.

  According to this configuration, the wireless transmission unit can be easily switched by operating a predetermined key.

  The remote controller described above further includes a transmission request receiving unit that receives a data transmission request from an external device, and the wireless transmission unit switching unit switches to a predetermined wireless transmission unit when receiving the data transmission request, It is preferable to switch to another wireless transmission means after the read data is transmitted by the transmission means.

  According to this configuration, when a data transmission request is received from an external device, switching to a predetermined wireless transmission unit is performed, and switching to another wireless transmission unit is performed after transmission of read data. That is, since the wireless controller is automatically switched as necessary on the remote controller side, the user does not need time and labor for switching the wireless transmitter, which is convenient.

  The remote controller described above further includes a memory connection determination unit that determines whether or not an external memory is connected to the memory connection unit, and the wireless transmission unit switching unit performs wireless transmission based on the determination result of the memory connection determination unit. It is preferable to switch the means.

  According to this configuration, for example, an operation such as switching to a predetermined wireless transmission unit when the external memory is connected, and switching to another wireless transmission unit when the external memory is not connected is possible. That is, since the wireless controller is automatically switched as necessary on the remote controller side, the user does not need time and labor for switching the wireless transmitter, which is convenient.

  In the remote controller described above, setting information of the external device is stored in the external memory, and the wireless transmission means is set when the external memory is connected or when a setting information transmission request is received from the external device. Information is preferably transmitted to an external device.

According to this configuration, information setting of the external device can be easily performed. The external device preferably transmits a setting information transmission request to the remote controller when the power is turned on or by a predetermined operation by the user.
“Setting information” refers to information that can be set and registered in an external device, such as information related to environment settings of the external device. For example, when the external device is a projector, information on image correction (for example, keystone distortion correction value), information on image quality adjustment (for example, color mode), information on security (for example, password), information on network settings (for example, Identification information, device name).

  A remote control system according to the present invention includes the remote controller described above and an external device.

  According to this configuration, it is possible to provide a remote control system that can be used by easily connecting an external memory regardless of the installation location of the external device to be operated by the remote controller.

It is a block diagram which shows the structure of the remote control system which concerns on one Embodiment of this invention. It is a block diagram which shows the structure of a remote control. It is a flowchart which shows the setting information transmission process of the remote control which concerns on 1st Embodiment. It is a flowchart which shows the read-data transmission process of the remote control which concerns on 1st Embodiment. It is a flowchart which shows the operation signal transmission process of the remote control which concerns on 1st Embodiment. It is a flowchart which shows the modification of a setting information transmission process. It is a flowchart which shows the read-data transmission process of the remote control which concerns on 2nd Embodiment. It is a flowchart which shows the read-data transmission process of the remote control which concerns on 3rd Embodiment. It is a flowchart which shows the operation signal transmission process of the remote control which concerns on 3rd Embodiment.

[First Embodiment]
Hereinafter, a remote controller (hereinafter abbreviated as “remote controller”) and a remote control system according to an embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the remote control system SY includes a projector 10 (external device) and a remote controller 40 that remotely operates the projector 10. The remote control 40 has a USB port 41 (memory connection means) for connecting a USB memory M (external memory), and can read information read from the USB memory M to the projector 10. .

  First, the control configuration of the projector 10 will be described with reference to FIG. The projector 10 includes a signal acquisition unit 11, a terminal selection unit 12, a device-side control unit 13, a storage unit 14, a video signal processing unit 15, an operation panel 16, a wireless communication unit 19, and a projection optical unit 20.

  The signal acquisition unit 11 acquires a video signal from an external device 50 such as a computer or a video player via a plurality of input terminals (not shown) provided in the projector 10. Note that the video signal may be acquired from an external storage device (not shown) such as a compact flash (registered trademark) instead of the external device 50. The signal acquisition unit 11 can also acquire a video signal from the USB memory M via the USB port 41 of the remote controller 40 and the device-side wireless module 18.

  The terminal selection unit 12 selects an input terminal from which a video signal is acquired. The projection optical unit 20 described later performs video projection based on the video signal acquired from the input terminal selected by the terminal selection unit 12. Note that the input terminals selectable by the terminal selection unit 12 include the USB port 41 of the remote controller 40 as described above.

  The apparatus-side control unit 13 is configured with a CPU (Central Processing Unit) as a main part, and performs overall control of the projector 10 by inputting and outputting signals to and from each unit via the bus 27. In this embodiment, transmission / reception processing with the remote controller 40 is mainly controlled.

  The storage unit 14 includes a ROM (Read Only Memory) or the like as a main unit, and stores a control program and control data for the device-side control unit 13 to perform various controls. The control program includes a transmission / reception processing program for performing transmission / reception processing with the remote controller 40, an image processing program used in the video signal processing unit 15, and the like. In addition, the control data includes setting information of an environment setting menu set using the operation panel 16 or the like. The storage unit 14 also stores an OS (Operating System).

  The video signal processing unit 15 applies a predetermined image to the video signal acquired by the signal acquisition unit 11 in accordance with an image processing program stored in the storage unit 14 and based on setting information stored in the storage unit 14. Process. For example, the keystone distortion process is performed based on the keystone distortion correction value included in the setting information, or the image quality adjustment process is performed based on the color mode information included in the setting information.

  The operation panel 16 is provided in the main body of the projector 10 and has a key group for performing various operations. The key group includes a video source switching key for switching a video source (an input terminal to be displayed).

  The wireless communication units 19 and 46 (see FIG. 2) perform wireless communication between the projector 10 and the remote controller 40. In the present embodiment, mainly transmission / reception of operation signals generated based on operations by the operation keys 44 (see FIG. 2) of the remote controller 40, read data read from the USB memory M (image data such as photographs, etc. Used for transmission / reception of slide show reproduction data) and setting information.

  The wireless communication units 19 and 46 include an optical wireless module and a wireless module. The optical wireless module is in charge of transmission / reception of operation signals by the remote controller 40, and the wireless module is in charge of transmission / reception of data. The optical wireless module is communication using light rays such as infrared rays, visible light, laser, LED, and IrDA (Infrared Data Association), and the wireless module is communication using radio waves and sound waves. In this embodiment, infrared modules 17 and 47 are given as an example of the optical wireless module, and wireless modules 18 and 48 using radio waves are given as an example of the wireless module.

  The projection optical unit 20 projects an image on the screen SC, and includes a light source lamp 21, a liquid crystal light valve 22, a projection lens 23, a lamp driving unit 24, and a light valve driving unit 25. As the light source lamp 21, a halogen lamp, a metal halide lamp, or a high-pressure mercury lamp can be applied. Further, a solid light source such as a laser or LED may be used in place of the light source lamp 21. The liquid crystal light valve 22 is configured by a liquid crystal panel or the like in which liquid crystal is sealed between a pair of transparent substrates, and a transparent electrode capable of applying a driving voltage to the liquid crystal for each minute region is provided on the inner surface of each transparent substrate. Pixels are formed in a matrix. The lamp driving unit 24 turns on the light source lamp 21 based on a lighting command from the device-side control unit 13. The light valve driving unit 25 sets a light transmittance of each pixel by applying a driving voltage corresponding to the image data to each pixel of the liquid crystal light valve 22. With these configurations, the projection optical unit 20 modulates the illumination light emitted from the light source lamp 21 by passing through the liquid crystal light valve 22. The modulated image light is combined for each pixel by a light combining optical system (not shown) (such as a dichroic prism) and projected onto the screen SC by the projection lens 23.

  Next, the control configuration of the remote controller 40 will be briefly described with reference to FIG. The remote controller 40 includes a USB port 41, a USB driver 42, a remote controller side controller 43, operation keys 44 (operation means), a remote controller infrared module 47, and a remote controller wireless module 48. The “radio transmission means” in the claims refers to the wireless communication unit 46, and the “plurality of wireless transmission means” constituting the wireless communication unit 46 refers to the remote control side infrared module 47 and the remote control side wireless module 48.

  The USB port 41 is a connection port for connecting the USB memory M. The USB memory M has a setting information storage area 60 in which the setting information is recorded. In the setting information storage area 60, various setting values that are environmentally set in the projector 10 are stored. The environment setting can be performed by OSD displaying an environment setting menu screen (not shown) by the projection optical unit 20 and using the operation key 44 of the operation panel 16 or the remote controller 40. In addition, the USB memory M stores image data such as photographs, slide show reproduction data, and the like.

  The USB driver 42 reads and writes information from and to the USB memory M via the USB port 41. The remote control side control unit 43 is configured with a CPU or the like as a main part, and controls the inside of the remote control 40 by inputting / outputting signals to / from each unit via the bus 49. In the present embodiment, transmission / reception processing (including mode switching processing) with the projector 10 is mainly controlled. Specifically, the setting information set by the projector 10 is acquired via the remote control wireless module 48 and output to the USB driver 42. In addition, the image data and setting information read by the USB driver 42 are transmitted to the projector 10 via the remote control wireless module 48.

  As with the operation panel 16 of the projector 10, the operation key 44 has a group of keys (operation buttons) for performing various operations. In addition, the operation key 44 on the remote control 40 side includes a mode switching key 44a. The mode switching key 44a enables an infrared mode for enabling transmission / reception by the remote control side infrared module 47 (enabling infrared communication) and enables transmission / reception by the remote control side wireless module 48 (enabling wireless communication). ) For switching the wireless mode. The “predetermined key” in the claims indicates the mode switching key 44a. Further, the “radio transmission means switching means” in the claims has the above-described remote control side control unit 43 as a main component.

  In this embodiment, it is assumed that the infrared mode and the wireless mode can be switched each time the mode switching key 44a is pressed. However, a key corresponding to each mode is provided, and each mode is pressed by pressing each key. May be settable.

  The remote-control-side infrared module 47 performs infrared communication with the projector 10 when setting the infrared mode. The remote controller-side wireless module 48 performs wireless communication with the projector 10 when the wireless mode is set.

  Next, the setting information transmission process (1) according to the first embodiment will be described with reference to the flowchart of FIG. The remote controller 40 (remote control unit 43) determines whether or not the USB memory M is connected to the USB port 41 (S11). When the USB memory M is connected (S11: Yes), the wireless mode is switched (S12), and it is determined whether the setting information is stored in the USB memory M (the setting information storage area 60 exists). (S13). If the setting information is not stored in the USB memory M (S13: No), the process is terminated as it is. If the setting information is stored in the USB memory M (S13: Yes), the USB driver 42 reads the setting information from the setting information storage area 60 of the USB memory M (S14). The read setting information is transmitted to the projector 10 via the remote controller-side wireless module 48 (S15).

  On the projector 10 side, the setting information received via the device-side wireless module 18 is written in the storage unit 14. Thus, the user can set the setting information simply by connecting the USB memory M to the USB port 41. That is, it is possible to eliminate the trouble of performing the environment setting by using the operation panel 16 or the remote control 40 by displaying the environment setting menu screen on the OSD. Further, since the setting information is automatically transmitted simply by connecting the USB memory M, forgetting to set the setting information can be prevented.

  Next, the read data transmission process (1) according to the first embodiment will be described with reference to FIG. It is assumed that the USB port 41 of the remote controller 40 is selected by the terminal selection unit 12 on the projector 10 side before the flow is executed. The remote controller 40 (remote control unit 43) determines whether or not the wireless mode has been set (whether the infrared mode has been switched to the wireless mode) (S21). When the wireless mode is set (S21: Yes), it is determined whether or not the USB memory M is connected to the USB port 41 (S22). If the USB memory M is not connected (S22: No), the process returns to S21. If the USB memory M is connected (S22: Yes), image data and the like are read from the USB memory M (S23), and the read data is transmitted to the projector 10 via the remote controller-side wireless module 48 (S23). S24).

  On the projector 10 side, read data received via the apparatus-side wireless module 18 is projected by the projection optical unit 20. For example, it displays thumbnails of photos and plays back slideshows.

  Next, the operation signal transmission process (1) according to the first embodiment will be described with reference to FIG. When the operation key 44 (however, a key other than the mode switching key 44a) is operated (S31: Yes), the remote control 40 (remote control unit 43) determines whether or not the infrared mode is set (S31: Yes). S32). If it is determined that the infrared mode is set (S32: Yes), an operation signal corresponding to the operation key 44 is transmitted to the projector 10 via the remote-side infrared module 47 (S33). On the other hand, if it is determined that the infrared mode is not set (S32: No), has the mode been switched (whether the mode switch key 44a has been pressed within a predetermined time since the operation of the operation key 44 (S31))? When the mode is switched (S34: Yes), an operation signal corresponding to the operation key 44 is transmitted to the projector 10 (S33). On the other hand, when the mode is not switched (S34: No), the process is terminated without transmitting the operation signal.

  On the projector 10 side, an operation signal is received via the apparatus-side infrared module 17, and an operation (processing) corresponding to the operation signal is performed. Thus, in the operation signal transmission process of this embodiment, the operation signal can be transmitted only in the infrared mode.

  As described above, according to the first embodiment, since the USB memory M can be connected to the remote controller 40, the USB memory M can be easily connected regardless of the installation location of the projector 10. In addition, since read data read from the USB memory M is transmitted to the projector 10 by wireless communication, a large amount of data can be transmitted more quickly than when infrared communication is used. Since the operation signal based on the operation of the operation key 44 of the remote controller 40 is transmitted to the projector 10 by infrared communication, the conventional communication standard can be employed as it is.

  Further, since the operation key 44 includes a mode switching key 44a, a radio mode for transmitting read data and an infrared mode for transmitting an operation signal can be easily performed by pressing the mode switching key 44a. Can be switched. Further, since the read mode can be transmitted in the wireless mode and the operation signal can be transmitted in the infrared mode, it is easy to use.

  In the setting information transmission process (1) shown in FIG. 3, the setting information is read by using the USB memory M as a trigger, but a transmission request from the projector 10 may be used as a trigger. FIG. 6 is a flowchart showing the setting information transmission process (2) in this case. As shown in the figure, the remote control 40 (remote control unit 43) determines whether or not a setting information transmission request has been received from the projector 10 (S41). The setting information transmission request may use either infrared communication or wireless communication, or may use both communications in order to reliably transmit and receive. When receiving the setting information transmission request (S41: Yes), the remote controller 40 switches to the wireless mode (S42) and determines whether the USB memory M is connected to the USB port 41 (S43). When the USB memory M is connected (S43: Yes), the presence / absence of the setting information is determined (S44). When the setting information exists (S44: Yes), the setting information is read (S45), and the projector 10 (S46). If the setting information does not exist (S44: No), the process is terminated as it is. According to this configuration, it is possible to read and set the setting information as required by the user by operating the projector 10. The projector 10 side preferably transmits the setting information transmission request when the power is turned on or by a predetermined operation by the user.

  In this case, after the setting information is transmitted (after S46), the mode may be switched from the wireless mode to the infrared mode. The same applies to the setting information transmission process (1) shown in FIG. 3 (the mode may be switched to the infrared mode after S15). Also in the read data transmission process (1) shown in FIG. 4, after the read data is transmitted (S24), the mode may be switched from the wireless mode to the infrared mode. According to these configurations, since the infrared mode can be set during normal operation, the operation of the mode switching key 44a is not required when the operation signal is transmitted, and only the operation key 44 is operated. Convenient. As shown in FIG. 6, when the remote controller 40 reads the setting information using the setting information transmission request as a trigger, the projector 10 only needs to transmit the setting information transmission request by infrared communication, and reliably transmits the transmission request. Therefore, it is not necessary to use both signals.

[Second Embodiment]
Subsequently, a second embodiment of the present invention will be described with reference to FIG. In the above embodiment, in the read data transmission process (1) shown in FIG. 4, data is read using the wireless mode as a trigger, but in this embodiment, a transmission request from the projector 10 is performed. This is different in that data is read using as a trigger. Only differences from the first embodiment will be described below. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. Moreover, the modification applied about the component similar to 1st Embodiment is applied similarly about this embodiment.

  FIG. 7 is a flowchart showing the read data transmission process (2) according to the second embodiment. It is assumed that the USB port 41 of the remote controller 40 is selected by the terminal selection unit 12 on the projector 10 side before the flow is executed. The remote controller 40 (remote controller side controller 43) determines whether or not a data transmission request has been received from the projector 10 (S51). The data transmission request preferably uses infrared communication. In this case, the “transmission request receiving means” in the claims has the remote-control-side infrared module 47 as a main component. The data transmission request is preferably transmitted when the USB port 41 of the remote controller 40 is selected by the terminal selection unit 12 on the projector 10 side.

  When receiving the data transmission request (S51: Yes), the remote controller 40 switches to the wireless mode (S52) and determines whether the USB memory M is connected to the USB port 41 (S53). When the USB memory M is connected (S53: Yes), image data and the like are read from the USB memory M (S54), and transmitted to the projector 10 via the remote controller-side wireless module 48 (S55). Thereafter, the wireless mode can be switched to the infrared mode (S56).

  As described above, according to the second embodiment, when the data transmission request is received from the projector 10, the mode is switched to the wireless mode, and after the read data is transmitted, the mode is switched to the infrared mode. Do not need. That is, it is convenient because the mode is automatically switched as necessary on the remote controller 40 side.

  Note that the setting information transmission processes (1) and (2) shown in FIGS. 3 and 6 can also be applied to the remote controller 40 of the present embodiment. However, for the same reason as described in the modification of the first embodiment, it is preferable that the remote controller 40 switches the mode from the wireless mode to the infrared mode after transmitting the setting information. Further, the operation signal transmission process (1) shown in FIG. 5 is also applicable to the remote controller 40 of the present embodiment.

[Third Embodiment]
Next, a third embodiment of the present invention will be described with reference to FIGS. In the present embodiment, in the read data transmission process, the mode is set according to whether or not the USB memory M is connected, and data is read by using a data read key (not shown) included in the operation key 44 as a trigger. Features a point. Only differences from the first embodiment will be described below. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. Moreover, the modification applied about the component similar to 1st Embodiment and 2nd Embodiment is applied similarly also about this embodiment.

  FIG. 8 is a flowchart showing read data transmission processing (3) according to the third embodiment. Note that it is not necessary to select (set) a terminal by the terminal selection unit 12 on the projector 10 side before the flow is executed. The remote control 40 (remote control unit 43) determines whether or not the USB memory M is connected to the USB port 41 (S61, memory connection determination means). If the USB memory M is not connected (S61: No), the infrared mode is set (if it is the wireless mode, the mode is switched to the infrared mode) (S62), and the process ends.

  On the other hand, when the USB memory M is connected (S61: Yes), the wireless mode is set (if it is the infrared mode, the wireless mode is switched) (S63), and whether or not the data read key is pressed. Is discriminated (S64). If the data read key has not been pressed (S64: No), the process ends. If the data read key is pressed (S64: Yes), image data and the like are read from the USB memory M (S65), and transmitted to the projector 10 via the remote controller-side wireless module 48 (S66).

  Next, the operation signal transmission process (2) according to the third embodiment will be described with reference to FIG. As shown in the figure, the remote controller 40 (remote control unit 43) discriminates the current mode setting when the operation key 44 (however, a key other than the mode switching key 44a) is operated (S71: Yes). If it is determined that the wireless mode is set (S72), an operation signal corresponding to the operation key 44 is transmitted to the projector 10 by wireless communication (S73). That is, an operation signal is transmitted through the remote controller-side wireless module 48. On the other hand, if it is determined that the current mode setting is set to the infrared mode, an operation signal corresponding to the operation key 44 is transmitted to the projector 10 by infrared communication (S74). That is, an operation signal is transmitted through the remote-control-side infrared module 47. Thus, in the operation signal transmission process (2) of the present embodiment, the operation signal can be transmitted even in the wireless mode.

  As described above, according to the third embodiment, when the USB memory M is connected, the mode is switched to the wireless mode, and when the USB memory M is not connected, the mode is switched to the infrared mode. There is no need to perform any operation. That is, it is convenient because the mode is automatically switched as necessary on the remote controller 40 side. Further, in the wireless mode, not only transmission of read data but also transmission of an operation signal is possible, so that various operations of the projector 10 can be performed even when the USB memory M is connected.

  Note that the setting information transmission processes (1) and (2) shown in FIGS. 3 and 6 can also be applied to the remote controller 40 of the present embodiment. However, when applied to the present embodiment, the step S12 (switching to the wireless mode) in the flowchart of FIG. 3 and the step S42 (switching to the wireless mode) in the flowchart of FIG. 6 are unnecessary.

  Although three embodiments have been described above, each component of the remote controller 40 shown in each embodiment can be provided as a program. Further, the program can be provided by being stored in various recording media (CD-ROM, flash memory, etc.). That is, a program for causing a computer to function as each component of the remote controller 40 and a recording medium on which the program is recorded are also included in the scope of the right of the present invention.

  In the above embodiment, the optical wireless module and the wireless module are exemplified as the wireless communication units 19 and 46. However, the number is not necessarily two, and the number of modules may be increased or decreased according to the function of the remote controller 40. . For example, when the remote controller 40 is multifunctional, the number of modules may be three or more, and a module corresponding to the function may be used. According to this configuration, it is possible to easily cope with the multi-function of the remote controller 40, and it is possible to improve operability and functionality by using an appropriate module according to the intended operation. In this case, according to mode selection, it is possible to make one or more target modules function from among three or more modules. Also, a module used for each operation (setting information, read data and operation signal transmission) from among three or more modules may be determined in advance, or these modules may be selected using a module selected by mode selection. Each operation may be executable. Further, the relationship between each operation and the module used for each operation may be set according to the user's preference and needs.

  On the other hand, when the functions of the remote controller 40 are narrowed down, all operations may be executed with one module. For example, only the infrared module may be mounted on the remote controller 40, and setting information, read data, and an operation signal may be transmitted using the infrared module. According to this configuration, the operation method of the remote controller 40 can be simplified, and the apparatus main body can be reduced in size and cost.

  In the above embodiment, the transmissive liquid crystal display method is adopted as the display method of the projector 10, but a projector such as a reflective liquid crystal display method, a CRT display method or a light switch display method (micromirror device method) is used. The display principle of 10 does not matter. In addition to the projector 10, any electronic device such as a personal computer, a television, a game device, a video / audio device, or a portable information device that can be operated by the remote controller 40 can be used regardless of its type and application. The invention can be applied.

  In the above embodiment, the USB memory M is exemplified as the external memory connected to the remote controller 40, but other external storage devices such as a compact flash (registered trademark) and an SD memory card may be used. In the above embodiment, only one USB port 41 for connecting the USB memory M is mounted. However, a plurality of USB ports 41 may be mounted. Other modifications can be made as appropriate without departing from the scope of the present invention.

  DESCRIPTION OF SYMBOLS 10 ... Projector 11 ... Signal acquisition part 12 ... Terminal selection part 13 ... Apparatus side control part 14 ... Memory | storage part 15 ... Image | video signal processing part 16 ... Operation panel 17 ... Apparatus side infrared module 18 ... Apparatus side wireless module 19 ... Wireless communication part (Device side) 20 ... projection optical unit 40 ... remote control 41 ... USB port 42 ... USB driver 43 ... remote control unit 44 ... operation key 44a ... mode switching key 46 ... wireless communication unit (remote control side) 47 ... remote control side infrared module 48 ... Remote control side wireless module 60 ... Setting information storage area M ... USB memory

Claims (8)

A memory connection means for connecting an external memory;
A remote controller comprising: wireless transmission means for transmitting read data read from the external memory to an external device by wireless communication. Further comprising an operation means having a plurality of operation buttons,
The remote controller according to claim 1, wherein the wireless transmission unit transmits an operation signal generated based on an operation of the operation unit to the external device by wireless communication. The wireless transmission means is composed of a plurality of wireless transmission means,
The remote controller according to claim 2, further comprising a wireless transmission means switching means for switching the plurality of wireless transmission means.   The remote controller according to claim 3, wherein the wireless transmission unit switching unit switches the plurality of wireless transmission units based on an operation of a predetermined key included in the operation unit. A transmission request receiving means for receiving a data transmission request from the external device;
The wireless transmission means switching means switches to the predetermined wireless transmission means when receiving a data transmission request, and switches to the other wireless transmission means after transmission of the read data by the wireless transmission means. The remote controller according to claim 3. A memory connection determination means for determining whether or not the external memory is connected to the memory connection means;
The remote controller according to claim 3, wherein the wireless transmission means switching means switches the wireless transmission means based on a determination result of the memory connection determination means. In the external memory, setting information of the external device is stored,
The wireless transmission means transmits the setting information to the external device when the external memory is connected or when a transmission request for the setting information is received from the external device. The remote controller according to any one of the above. The remote controller according to any one of claims 1 to 7,
A remote control system comprising the external device.

Images