JP5825312B2 - Image output apparatus, control method and program, and projection system - Google Patents

Description

The present invention relates to an image output apparatus, a control method, a program , and a projection system that output an image signal to a projection apparatus suitable for, for example, a data projector apparatus that performs a projection operation according to an image signal.

  In a projector device that uses a high-pressure mercury lamp or the like as a light source lamp, a projection operation with a stable light emission brightness is possible until a certain time has elapsed since the power was turned on and the lamp temperature has risen to a certain value. Cannot execute. This also applies to the standby state in which the operation is temporarily stopped from the projection operation. Even if an instruction to return to the normal projection operation from the standby state again is given due to the mercury vaporization state in the lamp, Usually, it takes about several tens of seconds to return to stable light emission luminance and to obtain stable light emission luminance.

  As described above, in a device that requires a short time from when an operation is instructed to when the operation is actually possible, the user is made to feel uneasy.

  Also, in the projector device, a ring-shaped operation key with a transparent portion provided on the top plate is attached, a light emitting portion is arranged at a position corresponding to each transparent portion, and the projector device completes brightness when the power button is turned on. Each light-emitting unit is turned on sequentially in the clockwise direction until it is turned off, and when the power button is turned off, each light-emitting unit is turned on in a counterclockwise direction until the projector device can stop operating. A technique is considered in which the state of the projector device is transmitted to the user depending on the form. (For example, Patent Document 1)

JP 2005-195970 A

  Including the technique described in the above-mentioned Patent Document 1, it is considered that it is relatively easy to notify the standby state until projection by the projector unit alone is possible by some output means.

  However, a projector device normally performs a projection operation corresponding to an image signal sent from another externally connected device, and when an image signal is input from another device in a state where the original projection operation cannot be performed. Since the output of the image signal proceeds as it is on the external device side, when the projection becomes possible after that, the external device side must return the image signal to an appropriate position and output the image signal again. There is.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an image output apparatus, a control method, a program , and a projection system that output an easy-to-use image signal.

The invention described in claim 1 is an image output device that outputs an image signal to a projection device, the display unit, a control means for outputting control information for notifying the projection device of the start of reproduction of the image signal, and receiving means for receiving a reproduction deferred signal instructing to postpone playback the projector from the projector to respond to the control information to notice the start of reproduction, including the waiting time is a time until the possible projection, wherein receiving means, characterized by comprising a display control means for displaying on the display unit of the standby time when receiving the reproduction postpone signal.

  According to the present invention, not only a projection apparatus but also an image output apparatus that is externally connected in accordance with a state in which projection is possible from a projection preparation state can be made easy to use.

1 is a diagram illustrating a projection environment including a data projector device according to a first embodiment of the invention. FIG. 2 is an exemplary block diagram showing a functional circuit configuration of the data projector apparatus according to the embodiment. FIG. 5 is a sequence diagram showing processing contents during a projection operation between the external device and the data projector apparatus according to the embodiment. The figure which illustrates the image which shows the standby progress state which projects in the projection standby state which concerns on the same embodiment. The sequence diagram which shows the processing content at the time of the projection operation | movement between the external apparatus and data projector apparatus which concern on the 2nd Embodiment of this invention.

(First embodiment)
A first embodiment in which the present invention is applied to a DLP (Digital Light Processing) (registered trademark) data projector apparatus will be described below with reference to the drawings.

  FIG. 1 illustrates a projection environment using the data projector device 1 according to the present embodiment. In the figure, for example, a DVD (Digital Versatile Disc) player 2 is connected as an external device to a data projector device 1 that is a projection device by an HDMI (High-Definition Multimedia Interface) (registered trademark) cable 3.

  When the DVD player 2 on which the image signal is recorded is set in the DVD player 2 and the “PLAY” button of the DVD player 2 or a remote controller dedicated to the DVD player 2 (not shown) is operated, the image signal recorded on the DVD 4 is read out. Then, it is sent to the data projector device 1 via the HDMI cable 3.

  The data projector device 1 forms a light image corresponding to the transmitted image signal, and projects the formed light image onto the screen SCR to be projected.

Next, a schematic functional configuration of the data projector apparatus 1 will be described with reference to FIG.
In the figure, reference numeral 11 denotes an input connector portion, which has, for example, a pin jack (RCA) type video input terminal and a D-sub15 type RGB input terminal.

  Image signals of various standards input from the input connector unit 11 are image signals in predetermined formats suitable for projection by an image conversion unit 13, also called a scaler, via an input interface (I / F) 12 and a system bus SB. And then sent to the projection image processing unit 14.

  At this time, various characters and pointers for OSD (On Screen Display), frame images corresponding to time information described later, and the like are also sent to the projection image processing unit 14 so as to be superimposed on the image signal as necessary.

  The projection image processing unit 14 develops and stores the transmitted image signal in the video RAM 15, and generates a video signal suitable for projection from the stored contents of the video RAM 15. The projection image processing unit 14 performs spatial light modulation element by faster time-division driving that multiplies the frame rate of the video signal, for example, 60 [frames / second], the number of color component divisions, and the number of display gradations. The micromirror element 16 which is (SOM) is driven to display.

  On the other hand, a light source lamp 18 using, for example, an ultra-high pressure mercury lamp disposed in the reflector 17 emits white light with high luminance. The white light emitted from the light source lamp 18 is colored into primary colors in a time-sharing manner through a color wheel 19 that rotates at high speed in synchronization with the display on the micromirror element 16, and is converted into a luminous flux having a uniform luminance distribution by the integrator 20. Later, the light is totally reflected by the mirror 21 and irradiated to the micromirror element 16.

  Then, an optical image is formed by the reflected light from the micromirror element 16, and the formed optical image is projected through the optical lens unit 22 onto the screen SCR to be projected.

  The optical lens unit 22 enlarges and projects the optical image formed by the micromirror element 16 onto a target such as a screen, and the focus position and the zoom position (projection angle of view) can be arbitrarily changed. .

  That is, the focus lens and the zoom lens (not shown) in the optical lens unit 22 are controlled by moving back and forth along the optical axis direction, and these lenses are moved by the rotational drive of the stepping motor (M) 23. To do.

  In addition, the projection light processing unit 25 performs lighting driving of the light source lamp 18, rotation driving of the motor (M) 24 for the color wheel 19, and rotation driving of the stepping motor 23.

  In addition, the projection light processing unit 25 receives temperature data from a temperature sensor 26 that is attached to the reflector 17 and detects the temperature of the light source lamp 18.

  The CPU 27 controls all the operations of the above circuits. The CPU 27 executes a control operation in the data projector device 10 using a main memory 28 composed of DRAM and a program memory 29 which is an electrically rewritable nonvolatile memory storing an operation program, various fixed data, and the like. To do.

  The CPU 27 executes various projection operations according to operation signals from the operation unit 30. The operation unit 30 includes a key operation unit provided on the housing body of the data projector device 1 and an infrared receiving unit that receives an infrared modulation signal from a remote controller (not shown) dedicated to the data projector device 1. Directly outputs to the CPU 27 a key code signal based on the key operated directly or via the remote controller.

  The CPU 27 is further connected to an HDMI interface (I / F) 31, an image storage unit 32, and an audio processing unit 33 via the system bus SB.

  The HDMI interface 31 receives image data sent from a device externally connected via the HDMI connector unit 34 provided along with the input connector unit 11 and HDMI-CEC (Consumer) with the external device. Control data transmission / reception processing in accordance with the Electronics Control) standard is performed.

  The image storage unit 32 stores the image data input from the input connector unit 11 or the HDMI connector unit 34 for a fixed number of frames under the control of the CPU 27.

  The sound processing unit 33 includes a sound source circuit such as a PCM sound source, converts the sound data given during the projection operation into an analog signal, drives the speaker unit 35 to emit a loud sound, or generates a beep sound or the like as necessary.

Next, the operation of the above embodiment will be described.
FIG. 3 shows the processing contents related to the processing of image data using the HDMI-CEC standard, which is executed in a state where the data projector apparatus 1 is connected to the DVD player 2 and the HDMI cable 3 as shown in FIG. . All control on the data projector apparatus 1 side is executed while the CPU 27 reads out the operation program stored in the program memory 29 and develops it in the main memory 28.

  When the “PLAY” button for instructing image reproduction is operated on the DVD player 2 functioning as the HDMI source device at the beginning of the operation (step S101), the DVD player 2 first passes through the CEC line in the HDMI cable 3. Then, an “Image View On” signal is sent to the data projector device 1 that functions as an HDMI sink device.

In response to this signal, the data projector device 1 determines whether or not it is in a standby state in which the lighting of the light source lamp 18 is stopped at that time (step R101).
If it is determined that the camera is in the standby state, the data projector apparatus 1 immediately cancels the standby state and turns on the light source lamp 18 by the projection light processing unit 25 (step R102).

  Thereafter, the data projector apparatus 1 repeatedly determines whether or not the light source lamp 18 is in a state capable of emitting light with a stable luminance, for example, based on the temperature of the light source lamp 18 detected by the temperature sensor 26 (step R103). It waits for the lamp 18 to emit light with a specified brightness.

  Then, when the light source lamp 18 emits light with a specified brightness, it is determined in step R103, and “Request Active” is again transmitted as an image data transmission request signal in response to the “Image View On” signal. The “Source” signal is sent to the DVD player 2 via the CEC line in the HDMI cable 3.

  The DVD player 2 side waits for a response from the data projector device 1 after transmitting the “Image View On” signal, and receives the “Request Active Source” signal as a response to receive the “PLAY Active Source” signal. While the reproduction operation corresponding to the operation of the “button” is started (step S102), an “Active Source” signal indicating that image data is sequentially output is transmitted to the data projector apparatus 1 thereafter.

  Thereafter, the DVD player 2 continues to send image data accompanying the reproduction operation to the data projector device 1 via the HDMI cable 3.

  On the data projector apparatus 1 side, after the “Request Active Source” signal is transmitted, the “Active Source” signal received from the DVD player 2 side is used as a trigger, and thereafter, the image data from the HDMI connector unit 34 is selected as the pixel data source. After that, an optical image based on the sequentially received image data is formed by the micromirror element 16, and the operation proceeds to the operation of projecting from the lens unit 22 toward the screen SCR (step R104).

  If the data projector apparatus 1 determines that the light source lamp 18 is not in a standby state in step R101, the light source lamp 18 is already turned on and projection with sufficient brightness is performed. In order to start the immediate projection operation, the processing in steps R102 and R103 is omitted, and an “Active Source” signal is transmitted to the DVD player 2 side.

  As described above, according to the present embodiment, the HDMI-CEC standard is used, and the “PLAY” button for instructing reproduction of the DVD player 2 corresponding to the standby state of the light source lamp 18 of the data projector device 1 is surely operated. Since the projection operation is started at the timing when it is determined that the projection is possible, not only the data projector device 1 but also the DVD player 2 side connected externally according to the projection ready state from the projection ready state. The handling can be simplified comprehensively including the operation.

  In the operation of the above embodiment, a case has been described in which control signals are simply transmitted and received between the data projector device 1 and the DVD player 2 until the projection operation on the data projector device 1 side becomes possible. However, for the user who is waiting for the “PLAY” button to be operated on the DVD player 2 and starting the projection operation on the data projector apparatus 1 during that time, there is no response at all. It seems annoying.

  Therefore, the light source lamp 18 is not yet sufficiently light emitting luminance, the entire screen is dark, and a sharp projected image cannot be obtained, but an image showing the progress until it can be projected for standby. May be projected.

  In this case, the time until projection is possible is, for example, a reference time from when the power source lamp 18 is projected to a predetermined temperature from a completely power-off state at a typical room temperature (for example, 15 ° C.). It is obtained by calculating the time from the current temperature of the light source lamp 18 detected by the temperature sensor 26 until the light source lamp 18 can be projected, stored in the program memory 29 in advance.

  FIG. 4A illustrates a case where an image to be counted down numerically is projected onto the screen SCR together with a previously registered logo “ABCDE.com”. In FIG. 9A, the projected numerical values are sequentially reduced, so that it is possible to grasp what is looking at this image including the user until the projection starts, which causes unnecessary anxiety and the like. Without waiting for the projection to start.

  FIG. 4B illustrates a case where an image using a bar graph that is expanded together with a logo “ABCDE.com” registered in advance is projected on the screen SCR. Even in the same figure (B), the projected bar graph extends sequentially until it reaches the full frame of the image, so that it is possible to grasp what is looking at this image including the user until the projection starts. Therefore, it is possible to wait for the projection to start without causing unnecessary insecurity.

  In this way, while waiting until the projector is ready for projection, an image showing the progress until projection is possible is projected as shown in FIG. Therefore, anxiety and annoyance while waiting can be suppressed.

(Second Embodiment)
A second embodiment when the present invention is applied to a DLP (registered trademark) data projector apparatus will be described below with reference to the drawings.

  The projection environment using the data projector device 1 ′ according to the present embodiment is basically the same as FIG. 1 and the schematic functional configuration of the data projector device 1 ′ is basically the same as FIG. Are denoted by the same reference numerals, and illustration and description thereof are omitted.

Next, the operation of the above embodiment will be described.
FIG. 5 shows the processing contents relating to the processing of image data using the HDMI-CEC standard, which is executed in a state where the data projector apparatus 1 ′ is connected to the DVD player 2 and the HDMI cable 3 as shown in FIG. is there. All control on the data projector apparatus 1 ′ is executed by the CPU 27 while reading the operation program stored in the program memory 29 and developing it in the main memory 28.

  When the “PLAY” button for instructing image reproduction is operated on the DVD player 2 functioning as the HDMI source device at the beginning of the operation (step S201), the DVD player 2 first passes through the CEC line in the HDMI cable 3. Then, an “Image View On” signal is transmitted to the data projector device 1 ′ functioning as an HDMI sink device.

In response to this signal, the data projector apparatus 1 ′ determines whether or not it is in a standby state in which the lighting of the light source lamp 18 is stopped at that time (step R201).
If it is determined that the state is the standby state, the data projector apparatus 1 ′ immediately cancels the standby state and the light source lamp 18 is turned on by the projection light processing unit 25 (step R202).

  Thereafter, the data projector apparatus 1 ′ repeatedly determines whether or not the light source lamp 18 is in a state capable of emitting light with a stable luminance, for example, based on the temperature of the light source lamp 18 detected by the temperature sensor 26 (step R203). It waits for the light source lamp 18 to emit light with a specified brightness.

  At the same time, the data projector device 1 ′ calculates approximate time information required for the light source lamp 18 to emit light with a specified brightness, and instructs the DVD player 2 to postpone it via the CEC line in the HDMI cable 3. The “Vendor Command With ID” signal is transmitted including the calculated result.

  In this case, the time until projection is possible is, for example, a reference time from when the power source lamp 18 is projected to a predetermined temperature from a completely power-off state at a typical room temperature (for example, 15 ° C.). It is obtained by calculating the time from the current temperature of the light source lamp 18 detected by the temperature sensor 26 until the light source lamp 18 can be projected, stored in the program memory 29 in advance.

  In response to this, the DVD player 2 uses the display unit such as a liquid crystal display panel, an LED display, or an organic EL panel based on the time information included in the received “Vendor Command With ID” signal. Display is performed (step S202).

  The transmission of time information from the data projector device 1 to the DVD player 2 and the display of the waiting time on the DVD player 2 based on the transmission of the time information are continuously performed. As a result, the DVD player 2 performs a countdown display of the waiting time. Become.

  Thereafter, when the light source lamp 18 emits light with a specified brightness, it is determined in step R203, and instead of the “Vendor Command With ID” signal that has been transmitted until then, the above-mentioned signal is renewed. A “Request Active Source” signal is sent to the DVD player 2 through the CEC line in the HDMI cable 3 as a transmission request signal for image data in response to the “Image View On” signal.

  On the DVD player 2 side, a “Request Active Source” signal is received from the data projector device 1 ′ instead of the “Vendor Command With ID” signal, and a playback operation corresponding to the operation of the “PLAY” button is started. (Step S203), an “Active Source” signal indicating that image data is to be sequentially output is transmitted to the data projector apparatus 1 ′.

  Thereafter, the DVD player 2 continues to send image data accompanying the reproduction operation to the data projector device 1 ′ via the HDMI cable 3.

  On the data projector apparatus 1 'side, after the "Request Active Source" signal is transmitted, the "Active Source" signal received from the DVD player 2 side is used as a trigger, and thereafter, the image data from the HDMI connector unit 34 is used as the source of the pixel data. After the selection, an optical image based on the sequentially received image data is formed by the micromirror element 16, and the operation proceeds to the operation of projecting from the lens unit 22 toward the screen SCR (step R204).

  If the data projector apparatus 1 'determines that the light source lamp 18 is not in a standby state in step R201, the light source lamp 18 is already turned on and projection is performed with sufficient brightness. In order to start the immediate projection operation, the processing in steps R202 and R203 is omitted, and an “Active Source” signal is transmitted to the DVD player 2 side.

  As described above, according to the present embodiment, instead of the data projector apparatus 1 ′ that cannot perform sufficiently clear projection in the projection standby state, a display indicating the progress until the projection becomes possible on the DVD player 2 side is displayed. By doing so, the progress of waiting time is visually displayed, so that anxiety and annoyance during standby can be suppressed.

  In each of the first and second embodiments, the case where the data projector apparatus 1 (1 ′) is connected to the DVD player 2 has been described. However, the present invention reproduces the image signal output to the data projector apparatus 1. The apparatus is not limited to the DVD player 2 and may be a digital camera including various video recorders and movie cameras.

  In the first and second embodiments, the case where the CEC line is used as a control line in accordance with the HDMI standard as a connection means for connecting the data projector apparatus 1 (1 ′) and the DVD player 2 has been described. However, the present invention is not limited to this, and the same function can be realized by using, for example, a wireless LAN technology represented by Bluetooth (registered trademark) or IEEE802.11a / b / g.

  Furthermore, although the present invention has been described with respect to a case where the present invention is applied to a DLP (registered trademark) type data projector apparatus as a projection apparatus, the present invention is not limited to elements that form a light image. A liquid crystal projector using a transmissive color liquid crystal panel, and each RGB LED group serving as a light source emits light in a time-sharing manner according to color components, thereby forming and projecting a color light image on a monochrome liquid crystal panel. The present invention can be similarly applied to other projection apparatuses such as a field sequential type projector apparatus.

  In addition, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention in the implementation stage. In addition, the functions executed in the above-described embodiments may be implemented in appropriate combination as much as possible. The above-described embodiment includes various stages, and various inventions can be extracted by an appropriate combination according to a plurality of disclosed structural requirements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, if the effect is obtained, a configuration from which the constituent requirements are deleted can be extracted as an invention.

  DESCRIPTION OF SYMBOLS 1,1 '... Data projector apparatus, 2 ... DVD player, 3 ... HDMI cable, 4 ... DVD, 11 ... Input connector part, 12 ... Input interface (I / F), 13 ... Image conversion part, 14 ... Projection image processing , 15 ... Video RAM, 16 ... Micromirror element (SOM), 17 ... Reflector, 18 ... Light source lamp, 19 ... Color wheel, 20 ... Integrator, 21 ... Mirror, 22 ... Optical lens unit, 23 ... Stepping motor (M ), 24 ... motor (M), 25 ... projection light processing unit, 26 ... temperature sensor, 27 ... CPU, 28 ... main memory, 29 ... program memory, 30 ... operation unit, 31 ... HDMI interface (I / F), 32 ... Image storage unit, 33 ... Audio processing unit, 34 ... HDMI connector unit, 35 ... Speaker unit, SB ... System bus, S R ... screen.

Claims (9)

An image output device that outputs an image signal to a projection device,
A display unit;
Control means for outputting control information for notifying the projection device of the start of reproduction of the image signal;
Receiving means for the projection device from the projection means responsive to control information notice the reproduction start to receive the reproduction deferred signal instructing to postpone playback including the waiting time is a time until the possible projection,
Display control means for displaying the waiting time on the display unit when the receiving means receives the reproduction postponement signal ;
An image output apparatus comprising:   The image output apparatus according to claim 1, wherein the display control means counts down the standby time.   The control means waits for a transmission request signal for image data from the projection apparatus responding to control information for notifying the start of reproduction, and starts reproduction of the image data upon receiving the transmission request signal. The image output apparatus according to claim 1, wherein the image output apparatus is an image output apparatus.   2. The control unit according to claim 1, wherein when the transmission request signal is received, reproduction of the image data is started and a signal indicating that image data is sequentially output is output to the projection apparatus. The image output device according to any one of claims 1 to 3. In addition to outputting the image signal, it further comprises a connection means for inputting / outputting various control information to / from the projection device,
The image according to any one of claims 1 to 4, wherein the control means outputs control information for notifying the projection apparatus of the start of reproduction of the image signal via the connection means. Output device. In addition to outputting the image signal, it further comprises a connection means for inputting / outputting various control information to / from the projection device,
6. The control unit according to claim 1, wherein the control unit outputs a signal indicating that the subsequent image data is sequentially output to the projection apparatus via the connection unit. Image output device. A control method in an image output device having a display unit and outputting an image signal to a projection device,
A control step of outputting control information for notifying the projection device of the start of reproduction of the image signal;
A reception step of receiving a reproduction deferred signal instructing to postpone playback the projection apparatus comprises a wait time is a time until the possible projection from the projection device responsive to control information that notified the reproduction start,
A display control step of displaying the waiting time on the display unit when the reproduction postponement signal is received . A program executed by a computer built in an image output apparatus that has a display unit and outputs an image signal to a projection apparatus,
A control step of outputting control information for notifying the start of reproduction of the image signal to the projection device;
A step of receiving a reproduction deferred signal instructing to postpone playback the projection apparatus comprises a wait time is a time until the possible projection from the projection device responsive to control information that notified the reproduction start,
A program for causing a computer to execute a display control step of displaying the standby time on the display unit when the reproduction postponement signal is received . An image output device for outputting an image signal to the projection device;
A projection system comprising: a projection device that projects the image signal from the image output device;
The image output device
A display unit;
Control means for outputting control information for notifying the projection device of the start of reproduction of the image signal;
Receiving means for the projection device from the projection means responsive to control information notice the reproduction start to receive the reproduction deferred signal instructing to postpone playback including the waiting time is a time until the possible projection,
And a display control means for displaying the waiting time on the display section when the reproduction postponement signal is received .

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