JP5387634B2 - Projection control apparatus and program - Google Patents

Description

The present invention relates to a projection control unit that performs control for projecting output by switching a plurality of images.

  2. Description of the Related Art Conventionally, a method of use in which a personal computer (hereinafter referred to as “PC”) is connected to a projector apparatus and the contents of the presentation are projected and displayed by a projector by executing presentation software on the PC has been widely used. It has been broken.

  When a presentation is performed using presentation software that operates on a PC as described above, it is natural that the user should be familiar with the handling of the presentation software, and bring the PC on which the software is installed together with the projector device to the presentation place. Both are essential.

  As for the former, making presentation software easy to handle, even in the patent literature, a presentation device that can control a display page of a PC by one-handed operation, can make a presentation flexibly and quickly, and can realize a highly complete presentation A technique for providing the above has been proposed. (For example, Patent Document 1)

JP 2003-330441 A

  On the other hand, in recent years, as a simple presentation without using a PC, a document data file created with presentation software is converted into a series of image data on the PC and then stored in a small storage medium such as a USB memory. A projector device having a function of sequentially reading and projecting a series of image data stored in the USB memory by directly connecting the USB memory is considered.

  A projector apparatus having this type of function has only a function of reading and projecting image data stored in a storage medium in accordance with the stored order. For this reason, it has been impossible to perform an operation for changing the order of images, for example, an operation for skipping a page by one page or a plurality of pages, or returning to a previous page that has already been projected.

The problem of the present invention is that after a plurality of images are switched and projected and output, when an image is projected again from each of the images, the image specified based on the output time for each image is reproduced again. Projection output.

The invention according to claim 1 is a projection control apparatus that performs control of switching and outputting a plurality of images, measuring means for measuring the output time when each image is projected and output, and projection as the output target image, the specifying means whose output Busy in each image to identify the maximum image, storage means for storing specified image in the specified unit as a re-projected image, the output-completed image when projecting output again, characterized in that anda re-output control means for said controlled to reprojection outputting the image stored as a re-projected image in the storing means.

According to the present invention, after projecting and outputting a plurality of images, when projecting and outputting an image again from each of the images, the image is automatically specified based on the output time for each image. Immediate reprojection output can be performed on the image.

1 is a perspective view showing an external configuration of a projector apparatus according to an embodiment of the present invention. 2 is a block diagram showing a functional configuration of the electronic circuit according to the embodiment. FIG. The flowchart which shows the content of the projection process in the 1st operation example which concerns on the embodiment. The flowchart which shows the content of the projection process in the 2nd operation example which concerns on the same embodiment.

  Hereinafter, an embodiment in which the present invention is applied to a projector apparatus will be described with reference to the drawings.

FIG. 1 shows an external configuration of a projector apparatus 10 according to the embodiment, in which FIG. 1A mainly shows the front and top surfaces of the casing, and FIG. 1B mainly shows the back and top faces of the casing.
As shown in FIG. 2A, a projection lens 12, a distance measuring sensor 13, and an Ir light receiving unit 14 are disposed on the front surface of a rectangular parallelepiped main body casing 11.

  The projection lens 12 is for enlarging and projecting a light image formed by a spatial light modulation element composed of a micromirror element, which will be described later, onto an object such as a screen. Here, a focus position and a zoom position (projection) The angle of view) can be arbitrarily changed.

  The distance measuring sensor 13 is arranged adjacent to the projection lens 12 so that one of the two pairs of phase difference sensors is in the horizontal direction and the other is in the vertical direction, and is projected based on the principle of triangulation from the parallax with respect to the subject image. The distance to the object is measured along a two-dimensional detection line in the horizontal and vertical directions.

  The Ir light receiving unit 14 receives an infrared light (Ir) signal on which a key operation signal from a remote controller of the projector device 10 (not shown) is superimposed.

A key switch portion 15 and a speaker 16 are disposed on the upper surface of the main body casing 11.
The key switch unit 15 includes, for example, a power key, an AFK (Automatic Focus / Automatic Keystone Correction) key, a zoom key, an input selection key, and a cursor (partly serving as a page switching instruction key). “↑”, “↓”, “←”, “→”) key, “Enter” key, “Memory” key for instructing storage of the page image currently projected, and instructions for projecting and canceling projection of the stored page image It is assumed that the same key is also provided on a remote controller (not shown) of the projector device 10.

  The speaker 16 emits a sound of the input audio signal and a beep sound during operation.

Further, as shown in FIG. 1B, an input / output connector portion 17, an Ir light receiving portion 18, and an AC adapter connecting portion 19 are disposed on the back surface of the main body casing 11.
The input / output connector unit 17 includes, for example, a USB terminal for connection with an external device such as a personal computer, a mini D-SUB terminal for video input, and an RCA (pin jack) terminal.

Similar to the Ir light receiver 14, the Ir light receiver 18 receives an infrared light (Ir) signal on which a key operation signal from a remote controller (not shown) is superimposed.
The AC adapter connection unit 19 connects a cable from an AC adapter (not shown) serving as a power source.

  Next, the functional configuration of the electronic circuit of the projector apparatus 10 will be described with reference to FIG. In the figure, the image signals of various standards input from the input / output connector unit 17 are unified into image signals of a predetermined format by the image conversion unit 22 via the input / output interface (I / F) 21 and the system bus SB. Is sent to the projection encoder 23.

  The projection encoder 23 develops and stores the transmitted image signal in the video RAM 24, generates a video signal from the stored contents of the video RAM 24, and outputs the video signal to the projection drive unit 25.

  The projection driving unit 25 appropriately speeds up the time division driving by multiplying the frame rate, for example, 60 [frames / second], the number of color component divisions, and the number of display gradations as appropriate in accordance with the transmitted image signal. For example, the micromirror element 26 which is a spatial light modulation element (SOM) is driven to display.

  For the micromirror element 26, high-intensity white light emitted from a light source lamp 28 disposed in a reflector 27, for example, using an ultra-high pressure mercury lamp, is appropriately colored to a primary color via a color wheel 29, and light A light beam having a uniform luminance distribution in the tunnel 30 is irradiated after being totally reflected by the mirror 31, and an optical image is formed by the reflected light, and is projected and displayed on a screen (not shown) through the projection lens 12. The

  However, both the lighting driving of the light source lamp 28 and the motor (M) 32 that rotationally drives the color wheel 29 operate based on the supply voltage value from the projection light processing unit 33.

  The control unit 34 controls all the operations of the above circuits. The control unit 34 includes a CPU, a non-volatile memory in which an operation program executed by the CPU during a projection operation, various fixed data, and the like are fixedly stored, and a work memory.

  The control unit 34 is also connected to an image storage unit 35, a distance measurement processing unit 36, and an audio processing unit 37 via the system bus SB.

  The image storage unit 35 stores the image signal input from the input / output connector unit 17 for one frame under the control of the control unit 34, appropriately reads out the stored content in accordance with the instruction of the control unit 34, and inputs the input signal. Instead of the image signal input from the output connector unit 17, the image signal is sent to the projection encoder 23.

  The distance measurement processing unit 36 controls and drives the distance measurement sensor 13 composed of the two pairs of phase difference sensors, and calculates the distance from the detected output to an arbitrary point position. The calculated distance value data is It is sent to the control unit 34.

  The sound processing unit 37 includes a sound source circuit such as a PCM sound source, converts the sound data given during the projection operation into analog data, drives the speaker 16 to emit a loud sound, or generates a beep sound or the like if necessary.

Each key operation signal in the key switch (SW) unit 15 is directly input to the control unit 34, and a signal from the Ir light receiving unit 38 is also directly input to the control unit 34. The Ir light receiving unit 38 includes an Ir light receiving unit 14 on the front surface side and an Ir light receiving unit 18 on the rear surface side of the main casing 11. The infrared light reception signal from the remote controller is converted into a code signal and sent to the control unit 35. To do.

Next, the operation of the above embodiment will be described.
(First operation example)
Here, a USB memory storing a data file composed of a series of image data is connected to the USB terminal of the input / output connector unit 17, and the image data read from the USB memory is projected in sequence, thereby projecting for presentation. The operation shall be executed.

  The image data stored in the USB memory is preliminarily converted into a predetermined image format, for example, JPEG, created using a personal computer (not shown) using presentation software, and then written as one image data file in the USB memory. Is included.

  Further, both the key switch unit 15 and the remote controller of the projector device 10 (not shown) are provided with a “stored projection” key for instructing the projection and release of the page image stored in the image storage unit 35 as described above. Shall.

  FIG. 3 shows an operation when the image data file stored in the USB memory connected to the USB terminal of the input / output connector unit 17 is read out and sequentially projected. The operation control is stored in advance by the control unit 35. The program is executed based on the operating program.

  At the beginning, the flag register indicating the storage state of the image data in the image storage unit 35, which is constructed in the work memory by the control unit 34 as an initial setting, is set to ON and the continuous projection time of the image is counted. The counter is cleared (step A01).

  At the same time, the control unit 34 updates and stores the larger one of the count value held until immediately before and the maximum value of the count so far as the maximum value of the count so far.

  Next, it is determined whether there is a page of an image to be projected based on the input signal (step A02). If it is determined, projection is executed using the image data of that page (step A03). At this time, the counting operation by the counter is started.

  Next, it is determined whether or not the flag register is set to ON at that time, and whether or not the count value of the counter is larger than the maximum count value so far (step A04).

  This is a determination for determining whether or not the image projected at that time has the longest projection time in the image data so far, and only when it is determined that this is the case. The image data projected in step S is stored in the image storage unit 35 (step A05).

  Thereafter, it is determined whether or not the cursor key operation of the key switch unit 15 for instructing the page switching or the remote controller of the projector device 10 has been performed regardless of whether or not the image storage unit 35 stores data (step A06). If there is, the process returns to step A01 to project a new page corresponding to the key operation.

  If it is determined in step A06 that there is no page switching operation, the flag switch is turned on at that time, and the key switch unit instructs the projection of the image data stored in the image storage unit 35. 15 or whether the “memory projection” key of the remote controller of the projector apparatus 10 has been operated (step A07).

  If it is determined that the flag register is not set to ON or the key operation is not performed, the flag register is set to OFF and the image data stored in the image storage unit 35 is projected. It is determined whether or not the operation of the “memory projection” key for canceling the operation has been performed (step A08). If not, the process returns to the process from step A04, and thereafter the steps A04, A06, A07, By repeatedly executing the process of A08, it waits for each key operation described above to be performed while continuing the projection operation.

  If it is determined in step A07 that the flag register is set to ON and a key operation for instructing projection of image data stored in the image storage unit 35 has been performed, the flag register is set to OFF again. At the same time, the counter value is cleared (step A09), and instead of the projection operation by the input from the input / output connector unit 17 so far, the image data stored in the image storage unit 35 is read and the projection operation is performed. (Step A10), and then the process returns to Step A04.

  If it is determined in step A08 that the flag register is set to OFF and a key operation for releasing the projection operation of the image data stored in the image storage unit 35 has been performed, the flag register is again displayed. Is set to ON and the counter value is cleared (step A11), and instead of projecting the image data stored in the image storage unit 35 so far, the input from the input / output connector unit 17 is performed again. Returning to the projection operation based on this (step A12), the process returns to step A04.

  Thus, based on the key operation, the image data from the USB memory connected to the USB terminal of the input / output connector unit 17 and the image data automatically stored in the image storage unit 35 according to the projection time are projected.

  If the page switching key operation is performed in a state where image data is being projected from the USB memory, and this is determined in step A06, then it is determined in step A02 that there is no image data to be projected next. That is, when the image data projected so far is the image data of the last page, it is assumed that there is no more image data to be projected, and the projection operation of FIG.

  In this way, while performing a simple presentation function that sequentially projects a series of images without using a personal computer, the projection time that seems to be particularly important image data in the series of images is the longest. Since the images stored in the image storage unit 35 are automatically updated and stored as needed, the images stored in the image storage unit 35 are read and projected at any time as needed regardless of the order. It becomes possible.

  In the above operation example, the counter is cleared when the page is switched. However, even when the page is switched during projection and the same image data is projected again, a counter is provided for each page so that it can be added to the previous projection time. Thus, the image storage unit 35 may store the one having the maximum projection time accumulation.

(Second operation example)
Here, a USB memory storing a data file composed of a series of image data is connected to the USB terminal of the input / output connector unit 17, and the image data read from the USB memory is projected in sequence, thereby projecting for presentation. The operation shall be executed.

  The image data stored in the USB memory is preliminarily converted into a predetermined image format, for example, JPEG, created using a personal computer (not shown) using presentation software, and then written as one image data file in the USB memory. Is included.

  The key switch unit 15 and the remote controller of the projector device 10 (not shown) both have a “memory” key for instructing storage of the page image projected at that time in the image storage unit 35, as described above. In addition, it is assumed that a “memory projection” key for instructing the projection and cancellation of the page image stored in the image storage unit 35 is provided.

  FIG. 4 shows the operation when the image data file stored in the USB memory connected to the USB terminal of the input / output connector unit 17 is read out and sequentially projected. The operation control is stored in advance by the control unit 35. The program is executed based on the operating program.

  Initially, the flag register indicating the storage state of the image data in the image storage unit 35, which is constructed in the work memory by the control unit 34 as an initial setting, is set to ON (step B01).

  Next, it is determined whether there is a page of an image to be projected based on the input signal (step B02). When it is determined that there is a page, projection is executed using the image data of that page (step B03).

  Whether or not an instruction to store the image being projected in the image storage unit 35 is issued depending on whether or not the key switch unit 15 or the “memory” key of the remote controller of the projector device 10 is operated from this projection state. Is determined (step B04).

  Here, only when it is determined that the “store” key has been operated, the image data projected at that time is overwritten and saved in the image storage unit 35 (step B05).

  Thereafter, it is determined whether or not the cursor key operation of the key switch unit 15 for instructing page switching or the remote controller of the projector device 10 has been performed, regardless of whether or not the image storage unit 35 stores data (step B06). If there is, the process returns to step B01 to project a new page corresponding to the key operation.

  If it is determined in step B06 that there is no page switching operation, then the key switch unit that instructs the projection of the image data stored in the image storage unit 35 that is set to ON at that time. 15 or whether the “memory projection” key of the remote controller of the projector apparatus 10 has been operated (step B07).

  If it is determined that the flag register is not set to ON or the key operation is not performed, the flag register is set to OFF and the image data stored in the image storage unit 35 is projected. It is determined whether or not the operation of the “memory projection” key for canceling the operation has been performed (step B08). If not, the process returns to the process from step B04 again, and thereafter the steps B04, B06, B07, By repeatedly executing the process of B08, it waits for each key operation described above to be performed while continuing the projection operation.

  If it is determined in step B07 that the flag register is set to ON and a key operation for instructing the projection of the image data stored in the image storage unit 35 has been performed, the flag register is set to OFF again. Above (step B09), instead of the projection operation by the input from the input / output connector unit 17 so far, the image data stored in the image storage unit 35 is read and the projection operation is performed (step B10), and thereafter Returning to the process from step B04.

  If it is determined in step B08 that the flag register is set to OFF and a key operation for canceling the projection operation of the image data stored in the image storage unit 35 has been performed, the flag register is again displayed. Is set to ON (step B11), and instead of projecting the image data stored in the image storage unit 35 so far, the projection operation based on the input from the input / output connector unit 17 is again performed (step B12). ), The process returns to step B04.

  Thus, the projection operation of the image data from the USB memory connected to the USB terminal of the input / output connector unit 17 and the image data stored in the image storage unit 35 according to a predetermined key operation is executed based on the key operation.

  Thus, when a page switching key operation is performed in a state where image data is being projected from the USB memory, and this is determined in step B06, it is determined in step B02 that there is no image data to be projected next. That is, when the image data projected so far is the image data of the last page, it is assumed that there is no image data to be projected, and the projection operation of FIG.

  As described above, while executing a simple presentation function that sequentially projects a series of images without using a personal computer, predetermined key operations that are considered to be particularly important image data in the series of images are performed. Since what has been done is overwritten and stored in the image storage unit 35, the user's intention is surely reflected, and the images stored in the image storage unit 35 are timed as needed at any time regardless of the order. Can be read out and projected.

  In the above embodiment, the USB memory storing a file made up of a series of image data has been described as being connected to the USB terminal of the input / output connector unit 17, but the present invention provides an interface for inputting image data. For example, if the projector device 10 has a wireless LAN function such as the IEEE 101.11 standard or Bluetooth (registered trademark), the projector device 10 is sent from another external device constituting the wireless LAN. The image data may be projected.

  In addition, the present invention is not limited to the above-described embodiment, 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 combined as appropriate 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 several constituent requirements are deleted from all the constituent requirements shown in the embodiment, if the effect can be obtained, a configuration from which the constituent requirements are deleted can be extracted as an invention.

  DESCRIPTION OF SYMBOLS 10 ... Projector apparatus, 11 ... Main body casing, 12 ... Projection lens, 13 ... Distance measuring sensor, 14 ... Ir light-receiving part, 15 ... Key switch part, 16 ... Speaker, 17 ... Input / output connector part, 18 ... Ir light-receiving part, DESCRIPTION OF SYMBOLS 19 ... AC adapter connection part, 21 ... Input / output interface (I / F), 22 ... Image conversion part, 23 ... Projection encoder, 24 ... Video RAM, 25 ... Projection drive part, 26 ... Micromirror element, 27 ... Reflector, 28 ... Light source lamp, 29 ... Color wheel, 30 ... Light tunnel, 31 ... Mirror, 32 ... Motor (M), 33 ... Projection light processing unit, 34 ... Control unit, 35 ... Image storage unit, 36 ... Ranging processing unit 37 ... Audio processing unit, 38 ... Ir light receiving unit, SB ... System bus.

Claims (4)

A projection control apparatus that performs control of switching and outputting a plurality of images,
A measuring means for measuring the output time when each image is projected and output for each image;
As reprojection output target image, the specific means for the already output time in each image to identify the maximum image,
Storage means for storing the image specified by the specifying means as a reprojection image;
When projecting output again been outputted image, and re-output control means for controlling so as to re-projected outputting the image in which the stored as a re-projected image by said storage means,
A projection control apparatus comprising: The measuring means measures the continuous output time when the image is continuously output for each image as the output completed time ,
The projection control apparatus according to claim 1. The measuring means measures the accumulated output time when the image is output for each image as the output completed time ,
The projection control apparatus according to claim 1. A program for controlling a computer of a projection control apparatus that performs control to switch and output a plurality of images,
The computer,
Measuring means for measuring the output time for each image when each image is projected and output,
A specifying means for specifying an image with the maximum output time among the images as the reprojection output target image,
Storage means for storing the image specified by the specifying means as a reprojection image;
When projecting output again been outputted image is re-output control means for controlling so as to re-projected outputting the image in which the stored as a re-projected image by said storage means,
A computer-readable program designed to function as a computer.

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