JP2011023871A - Electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic apparatus capable of preventing power consumption. <P>SOLUTION: The electronic apparatus includes: a projector section 38; a display section 22; and a control section 25, which stops projecting an image in the projector section and starts displaying a predetermined display in the display section when an operation unrelated to a projection to an operating section 26 is performed while the image is being projected in the projector. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electronic device.

  An electronic device provided with a projector is known (see, for example, Patent Document 1).

JP 2005-250392 A

  By the way, in the electronic apparatus provided with the projector described above, power consumption is large because a white LED or the like is used as a light source for illumination.

  The objective of this invention is providing the electronic device which can suppress power consumption.

  The electronic device of the present invention projects the image by the projection unit when an operation not related to projection is performed on the operation unit during the projection of the image by the projection unit, the display unit, and the projection unit. And a control unit for starting a predetermined display on the display unit.

  The electronic device according to the present invention includes a projection unit, a display unit, a communication unit that communicates with an external device, and the projection unit during projection of an image acquired from the external device via the communication unit. When an operation not related to projection is performed on the operation unit, the projection of the image by the projection unit is terminated while maintaining the acquisition of the image from the external device by the communication unit, and the display And a control unit for starting predetermined display in the unit.

  According to the electronic device of the present invention, power consumption can be suppressed.

It is a perspective view which shows the front surface of the digital camera which concerns on the 1st Embodiment of this invention. It is a figure which shows the back surface of the digital camera which concerns on the 1st Embodiment of this invention. 1 is a block diagram showing a system configuration of a digital camera according to a first embodiment of the present invention. It is a flowchart which shows the process of the digital camera which concerns on the 1st Embodiment of this invention. It is a figure which shows the structure of the camera system containing the digital camera which concerns on the 2nd Embodiment of this invention. It is a flowchart which shows the process of the digital camera which concerns on the 2nd Embodiment of this invention.

  Hereinafter, a digital camera provided with a projection unit will be described as an example of the electronic apparatus according to the first embodiment of the present invention with reference to the drawings. FIG. 1 is a perspective view showing the front surface of the digital camera according to the first embodiment. The digital camera 2 includes a housing 4. On the front surface of the housing 4, an imaging window 10 that allows subject light to enter, a projection window 12 that projects an image, and a flash window 14 that emits light that illuminates the subject are provided. ing. Further, on the upper surface of the housing 4, a power switch 16, a release button 18 for giving a release instruction, and a PJ button 20 for switching between an imaging mode for imaging subject light and a projection mode for projecting an image are provided.

  FIG. 2 is a diagram illustrating a back surface of the digital camera according to the first embodiment. On the back of the housing 4, an LCD display unit 22 that displays a captured image, a menu screen, and the like, a multi-selector 23 that selects items on the menu screen displayed on the LCD display unit 22, and a menu screen display are displayed. A menu button 24 or the like for instructing is provided.

  FIG. 3 is a block diagram showing a system configuration of the digital camera according to the first embodiment. The digital camera 2 includes a CPU 25. The CPU 25 includes an operation unit 26 including a power switch 16, a release button 18, a PJ button 20, a menu button 24, a display control unit 28 that controls display on the LCD display unit 22, and photographing. An image sensor 30 composed of a CMOS, a CCD, etc. that captures subject light through a lens and generates an image signal, and an image signal output from the image sensor 30 is A / D converted in an A / D converter (not shown). An image storage unit 32 for storing image data generated by the program, a program storage unit 34 for storing a program for setting and controlling imaging and projection, a memory card 36 for storing captured image data, and an image A projection unit 38 for projecting an image based on the image data stored in the storage unit 32 or the memory card 36 is connected. It has been. Here, the projection unit 38 includes a power control unit 48 that turns on and off the LED 46 that is a light source, and a projection control unit 52 that performs display control of the LCOS 50 that displays an image to be projected.

  Next, processing in the digital camera 2 according to the first embodiment will be described with reference to the flowchart shown in FIG. When the operator presses the PJ button 20, the imaging mode for imaging the subject is switched to the projection mode for projecting an image by the projection unit 38 (step S11). When switched to the projection mode, the CPU 25 instructs the projection unit 38 to start projection, and the power control unit 48 turns on the LED 46. The projection control unit 52 reads out the image data of the projection image selected by the operator by operating the multi-selector 23 and the like from the memory card 36, displays the image data on the LCOS 50, and projects the projection image (step S13).

  Next, when the menu button 24 is pressed during image projection (step S15), the image projected when the menu button 24 is pressed when projection is resumed can be projected. Is stored in the image storage unit 32 (step S17). On the other hand, if the menu button 24 is not pressed, projection by the projection unit 38 is continued (step S13). When image information is stored in the image storage unit 32, the CPU 25 instructs the projection unit 38 to stop projection, and stops projection by the projection unit 38 (step S19). Next, the CPU 25 reads the menu screen image data stored in the program storage unit 34 and displays the menu screen image on the LCD display unit 22 (step S21). As a result, the operator performs menu operations such as image quality adjustment of the projected image, that is, contour enhancement and contrast adjustment, based on the menu screen displayed on the LCD display unit 22 (step S23).

  Next, when the menu button 24 is pressed again while the menu screen is displayed on the LCD display unit 22, the CPU 25 prepares an image to be projected by the projection unit 38. That is, the image data is read from the memory card 36 based on the image information stored in the image storage unit 32 (step S27). Then, the projection of the image projected when the menu button 24 is pressed by the projection unit 38 is resumed (step S29). On the other hand, if the menu button 24 is not pressed, the display of the menu screen is continued on the LCD display unit 22 (step S21).

  According to the digital camera 2 according to the first embodiment, power consumption can be suppressed by stopping projection by the projection unit 38 while the menu screen is being displayed by the LCD display unit 22. Further, by displaying the menu screen on the LCD display unit 22, it is possible to display the menu screen with a clearer image as compared with the case where the projection unit 38 projects the menu screen.

  Next, a camera system including a digital camera according to a second embodiment of the present invention will be described with reference to the drawings. The digital camera 200 of the camera system according to the second embodiment is connected to a personal computer 60 that is an external device having a communication function, and projects an image based on image data acquired from the personal computer 60. Therefore, a detailed description of the same configuration as that of the first embodiment is omitted, and only different portions will be described in detail. Further, the same components as those in the first embodiment will be described with the same reference numerals.

  FIG. 5 is a diagram illustrating a configuration of a camera system including the digital camera 200. The digital camera 200 has a USB terminal 54 and communicates with the personal computer 60 via the USB cable 56. The digital camera 200 receives image data of an image displayed on the screen 62 of the personal computer 60 through communication with the personal computer 60, and projects an image based on the image data by the projection unit 38.

  Next, processing in the camera system including the digital camera 200 will be described with reference to the flowchart shown in FIG. When the digital camera 200 and the personal computer 60 are connected via the USB cable 56 and communication is started between the digital camera 200 and the personal computer 60 with the digital camera set to the projection mode (step S43), the personal computer 60 is started. Captures the image data of the image displayed on the screen 62 and transmits it to the digital camera 200 via the USB cable 56 at 30 fps. The digital camera 200 receives the image data transmitted from the personal computer 60 (step S45). Next, the CPU 25 instructs the projection unit 38 to start projection, and the projection unit 38 projects an image based on the received image data (step S47).

  Next, when the menu button 24 is pressed during projection (step S49), the CPU 25 instructs the projection unit 38 to stop projection and stops projection by the projection unit 38 (step S51). On the other hand, if the menu button 24 is not pressed, the projection by the projection unit 38 is continued (step S47). When projection by the projection unit 38 is stopped, the CPU 25 displays an image of the menu screen on the LCD display unit 22 (step S55) while maintaining reception of image data transmitted from the personal computer 60 (step S53). The received image data is discarded without being stored (step S53). Thus, the operator performs menu operations such as image quality adjustment of the projected image, that is, contour enhancement, contrast adjustment, and the like based on the menu screen displayed on the LCD display unit 22 (step S57).

  Next, when the menu button 24 is pressed again while the menu screen is displayed on the LCD display unit 22 (step S59), projection by the projection unit 38 is resumed and new image data received from the personal computer 60 is received. The image is projected based on (Step S61). On the other hand, if the menu button 24 is not depressed again, the menu screen is continuously displayed on the LCD display unit 22 (step S53).

  According to the camera system including the digital camera 200 according to the second embodiment, power consumption can be suppressed by stopping the projection by the projection unit 38 while the menu screen is being displayed by the LCD display unit 22. . Further, by displaying the menu screen on the LCD display unit 22, it is possible to display the menu screen with a clearer image as compared with the case where the projection unit 38 projects the menu screen. Further, the menu operation can be performed based on the menu screen displayed on the LCD display unit 22 without disconnecting the communication with the personal computer 60.

  In the first and second embodiments, the operation of the menu button 24 is described as an example of an operation not directly related to the projection. However, for an operation not directly related to the projection, a slideshow image selection operation or the like is performed. Is also included.

  In the first embodiment, the image information of the image being projected is stored in the image storage unit 32 after the menu button 24 is pressed. However, the image data may be stored in the image storage unit 32. Good. Thereby, the image to be projected when the projection is resumed can be read directly from the image storage unit 32.

  In the second embodiment, communication is performed between the digital camera 200 and the personal computer 60 via the USB cable 56. However, wireless USB communication may be used, and other than USB communication may be used. Communication means may be used. As a result, the digital camera 200 can acquire image data from the personal computer 60 even when it is separated from the personal computer 60.

  In the first and second embodiments, when the menu button 24 is pressed again while the menu screen is displayed on the LCD display unit 22, the projection by the projection unit 38 is resumed. The projection by the projection unit 38 may be resumed when the PJ button 20 is pressed instead of the menu button 24.

  In each of the above-described embodiments, the digital cameras 2 and 200 having an imaging function are described as examples of electronic devices. However, the present invention can also be applied to a projector that does not have an imaging function.

  DESCRIPTION OF SYMBOLS 2,200 ... Digital camera, 4 ... Housing | casing, 10 ... Imaging window, 12 ... Projection window, 14 ... Flash window, 16 ... Power switch, 18 ... Release button, 20 ... PJ button.

Claims (9)

The projection department,
A display unit;
A control unit that ends projection of the image by the projection unit and starts a predetermined display on the display unit when an operation not related to projection is performed on the operation unit during projection of the image by the projection unit An electronic device comprising: The projection department,
A display unit;
A communication unit that communicates with an external device;
When an operation not related to projection is performed on the operation unit during projection of an image acquired from the external device via the communication unit by the projection unit, the image from the external device by the communication unit An electronic apparatus comprising: a control unit that ends projection of the image by the projection unit and starts a predetermined display on the display unit while maintaining acquisition of the image.   The control unit determines whether or not the operation is an operation not related to the projection, and when determining that the operation is an operation not related to the projection, the control unit ends the projection of the image by the projection unit, and the display unit 2. The electronic apparatus according to claim 1, wherein display of the electronic device is started.   The electronic apparatus according to claim 1, wherein the operation not related to the projection is an operation for displaying a menu screen on the display unit.   When the predetermined display is performed on the display unit, if an operation not related to the projection is performed again, the projection of the image projected by the projection unit before the predetermined display is resumed. The electronic apparatus according to any one of claims 1, 3, and 4.   The control unit determines whether or not the operation is an operation not related to the projection, and when determining that the operation is an operation not related to the projection, the control unit ends the projection of the image by the projection unit, and the display unit 3. The electronic apparatus according to claim 2, wherein display of the electronic information is started.   The electronic apparatus according to claim 2, wherein the operation not related to the projection is an operation for displaying a menu screen on the display unit.   The electronic device according to claim 2, wherein the communication unit and the external device perform communication through a USB connection.   The electronic apparatus according to claim 1, further comprising an imaging unit that images a subject.

Images