JP2005099620A - Projector, write and read method of its display parameter, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projector capable of easily setting the image quality characteristics preferred by a user. <P>SOLUTION: The projector is provided with an image interface 1, an image processing means 2, a display parameter interface 3, an external storage medium 4, an internal storage means 5, a control means (microcomputer) 6 and an image projection means 7. Since the setting value of display parameters are stored in the external storage medium 4, limitation in the amount of the display parameter is eliminated. Also, by having the setting value of the display parameter be read from the external storage medium 4 even for the projector to be used for the first time, the projector can be used in the same state as the projection image quality used normally. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a projector, a display parameter writing / reading method, and a program thereof, and more particularly, to a projector with improved image quality characteristic setting method of a user preference, a display parameter writing / reading method, and a program thereof.

  The projector is a projector that projects an input image onto a screen or a wall, but in recent years, an image supply source is generally provided via a personal computer.

  However, it is necessary to prepare a personal computer for each projection, and further convenience is required in consideration of the installation location of the projector. An example corresponding to this requirement is described in Patent Document 1.

  The projector disclosed in Patent Document 1 is provided with an IC memory card ridge interface unit so that the image information can be enlarged and projected on the screen only by connecting the IC memory card ridge storing the image information. Techniques to do this are disclosed. That is, when an IC memory card storing image information created by an external personal computer or the like is connected to the IC memory card interface connector, the MPU reads and reads the image information stored in the IC memory card. The image information is converted into a format that can be displayed on a transmissive liquid crystal display panel.

  After performing the conversion process, the address and data are output to the video RAM and the writing operation is started. The liquid crystal display controller outputs a read address to the video RAM and enters a read operation. Next, characters, charts, and the like displayed on the transmissive liquid crystal display panel are enlarged and projected on the screen by OHP.

  Moreover, there exists cited patent document 2 as another example. The projector disclosed in Patent Document 2 includes a CRT display, an externally removable storage medium, and data input means for inputting data for editing image data displayed on the CRT display, thereby projecting image data. Can be easily edited, and re-projection of edited image data can be easily performed. That is, it has a card insertion slot which is a CRT display, a keyboard, and an IC card insertion and ejection slot.

  An image displayed on the CRT display is projected onto the screen via the head portion. In other words, an IC card that is removable from the outside is provided as a storage device, and image data stored in the IC card is displayed on a CRT display and projected onto a screen. Thus, it is disclosed that image data to be projected can be edited, and re-projection of the edited image data can be easily performed.

  In each of the above examples, image data is stored in an IC memory cartridge or IC card and the image data is used. On the other hand, as a common proposition to image devices, an image projected by a projector is It is required to reproduce the image quality of the input image as faithfully as possible. In order to satisfy the requirement, it is necessary to set the characteristics of the projector in advance during standby.

  The characteristics to be set (display parameters) include, for example, image adjustment values including screen brightness, luminance, saturation, hue, gamma correction value, color temperature and white balance setting values, and aspect and resolution setting values. The image adjustment value setting value is stored in the internal memory of the projector.

  In order to store the setting values of the display parameters described above in the internal memory, the memory capacity to be mounted is always limited, and there is a background that the user has been restricted to store the setting values of the projector.

  Considering the case of using a projector other than the projector that is normally used, the projector must be set from the initial state in order to obtain a desired image quality.

  As an example of improvement when using a plurality of projectors, there is Reference Patent Document 3. Referring to FIG. 7 showing the configuration of Patent Document 3, the own liquid crystal projector 11a, the liquid crystal projector 11b other than itself, the communication ports 19 and 20 for transmitting and receiving data, and the other liquid crystal projector 11b. A first memory 18 for storing parameters adjusted so as to project an image signal input to the projector in an optimum state, a microcomputer 15 for reading means for reading parameters, and its own liquid crystal projector 11a. And a second memory 18 for storing display parameters used by the liquid crystal projector 11b other than itself according to an instruction from the liquid crystal projector 11b other than itself, and a second memory 18 according to an instruction from the liquid crystal projector 11b other than itself. The display parameters stored in the memory 18 are read out and transmitted from the communication port 19 It is disclosed that includes a transmission unit.

  That is, it has a communication port 19.20 for transmitting / receiving data to / from a liquid crystal projector other than itself, and the image signal input to itself is optimally stored in the memory 18 in the liquid crystal projector other than itself. Means for storing parameters adjusted to be projected and means for reading out the parameters, and is used in a liquid crystal projector other than itself in a memory 18 of the projector according to an instruction from the liquid crystal projector other than itself. By having a means for storing the display parameters and a means for reading out the display parameters stored in the memory 18 in accordance with an instruction from the liquid crystal projector other than itself and sending out the data from the communication port 19, the memories 18 in the liquid crystal projectors other than the own are mutually connected. It becomes possible to share and use memory effectively It is that the door can be.

Japanese Patent Laid-Open No. 3-038867 (the second page of the specification, the upper right column, the third line to the tenth line, FIG. 2). JP-A-3-209230 (the second page of the specification, the lower left column 16th line to the lower right column 5th line, FIG. 2). Japanese Patent No. 2995922 (paragraphs “0017” and “0021”, FIG. 1).

  As described above, in order to reproduce the image quality of the input image as faithfully as possible, it is necessary to set the projector characteristics in advance during standby, and the display parameters to be set include the brightness and brightness of the screen. Image adjustment values including saturation, hue, gamma correction value, color temperature and white balance setting values, and image adjustment value setting values including aspect and resolution setting values are stored in the internal memory of the projector.

  In order to store the setting values of the display parameters in the internal memory, there is a limit to the memory capacity to be mounted. Therefore, it is necessary for the user to limit the data amount for storing the setting values of the projector as much as possible.

  Further, in the case of using a projector other than the projector normally used, there is a problem that the projector must be set from the initial state in order to obtain a desired image quality of the projector.

  An object of the present invention is to store display parameters in an external storage medium as an alternative to an internal memory having a limited memory capacity, and to set the projector using the display parameters stored in the external storage medium. It is an object of the present invention to provide a projector that can easily set user-preferred image quality characteristics.

  The projector of the present invention has a display parameter storage control function for selectively storing display parameter setting values set in advance for projecting input image data with a desired image quality in an internal storage means or an external storage medium. And

  Another feature of the projector according to the present invention is that an external storage medium that stores preset values of display parameters for projecting input image data with a desired image quality, and the display parameters are input / output from the external storage medium. Display parameter interface means for setting, a parameter setting on-screen menu for setting the display parameter, and an on-screen for selection operation for selecting one of the internal storage means and the external storage medium for the display parameter In response to the insertion of the external storage medium in the menu and the standby state, the insertion state is recognized and the display parameter is read from the external storage medium via the display parameter interface means, and based on the read display parameter Execute the projection operation and In that a control means for controlling the co 働動 operation between adult elements.

  Another feature of the projector according to the present invention is that an external storage medium that stores preset values of display parameters for projecting input image data with a desired image quality, and the display parameters and the image data are stored in the external Image / display parameter interface means for inputting / outputting from / to a storage medium, a parameter setting on-screen menu for setting the display parameters, and selecting one of the display parameters from the internal storage means and the external storage medium An on-screen menu for selection operation, image processing means for taking in and projecting the image data, and the display parameter interface means for recognizing the insertion state in response to insertion of the external storage medium in a standby state The display from the external storage medium via It reads the parameters, to execute the projection operation based on the display parameters read, and in that a control means for controlling the co 働動 operation between these components.

  Still another feature of the projector of the present invention is that, in a projector that projects input image data with a desired image quality, a set value of display parameters set in advance for projecting with the desired image quality is stored, and a plurality of the projectors are stored. A single external storage medium shared by the user, display parameter interface means for inputting / outputting the display parameter from / to the external storage medium, an on-screen menu for parameter setting for setting the display parameter, and the display A selection operation on-screen menu for selecting one of the internal storage means and the external storage medium for parameters, and a projection operation based on the display parameters, and controlling the cooperative operation between these components It is also possible to provide a control means.

  Still another feature of the projector of the present invention is that an external storage medium that stores preset values of display parameters for projecting input image data with a desired image quality, and the display parameters and the image data respectively Image / display parameter interface means for inputting / outputting from / to an external storage medium, a parameter setting on-screen menu for setting the display parameters, one of the display parameters for the internal storage means and the external storage medium An on-screen menu for selection operation for selection, an image processing means for capturing and projecting the image data, and a display parameter interface for recognizing the insertion state in response to insertion of the external storage medium in a standby state From the external storage medium via means Control means for reading a display parameter, causing a projection operation to be executed based on the read display parameter, and controlling a cooperative operation between these components, and between the plurality of projectors based on the control of the control means The external storage medium is shared with each other.

  Further, as the display parameters stored in the external storage medium, image adjustment values including at least screen brightness, luminance, saturation, hue, gamma correction value, color temperature and white balance setting values, and at least aspect and resolution And an image adjustment value including the set value.

  Further, a plurality of external storage media may be provided, and different values may be set as the display parameters for each of the external storage media.

  Furthermore, the external storage medium may be a medium composed of semiconductor elements.

  In addition, the display parameter setting value stored in the external storage medium may have a security function that protects the third parameter from tampering.

  The display parameter writing / reading method of the projector according to the present invention includes an external storage medium for storing display parameter setting values set in advance for projecting input image data with a desired image quality, and the display parameter is input from the external storage medium. Display parameter interface means for outputting, a parameter setting on-screen menu for setting the display parameters, and a selection operation for selecting one of the internal storage means and the external storage medium for the display parameters An on-screen menu and control means for executing a projection operation based on the display parameter and controlling a cooperative operation between these components. When using the display parameter of the external storage medium, an operator can On-screen for selecting operation by inserting a storage medium In response to the valid state, the control unit reads the display parameter from the external storage medium via the display parameter interface unit, and performs a projection operation based on the read display parameter. Is to execute.

  Another feature of the display parameter writing / reading method of the projector according to the present invention is that an external storage medium for storing display parameter setting values set in advance for projecting input image data with a desired image quality, and the display parameter to the external parameter are stored. Display parameter interface means for inputting / outputting from / from a storage medium, a parameter setting on-screen menu for setting the display parameters, and selecting one of the display parameters from the internal storage means and the external storage medium An on-screen menu for selection operation, and a control unit that executes a projection operation based on the display parameter and controls a cooperative operation between these components, and when the external storage medium is inserted in a standby state, The control means recognizes the inserted external storage medium and Through the serial display parameter interface means reads the display parameters from the external storage medium is to be executed the projection operation based on the display parameters read.

  Another feature of the display parameter writing / reading method of the projector according to the present invention is that, in the display parameter writing / reading method of the projector for projecting input image data with a desired image quality, the display parameters set in advance for projecting with the desired image quality. A single external storage medium for storing the set value, display parameter interface means for inputting / outputting the display parameters from / to the external storage medium, an on-screen menu for setting parameters for setting the display parameters, On-screen menu for selecting operation for selecting one of the internal storage means and the external storage medium for the display parameter, a projection operation based on the display parameter, and a cooperative operation between these components Control means for controlling, the control means Is to share with each other a single said external storage medium among a plurality of the projectors based on the control.

Still another feature of the display parameter writing / reading method of the projector according to the present invention is that an external storage medium that stores preset values of display parameters for projecting input image data with a desired image quality, the display parameters, Image / display parameter interface means for inputting / outputting the image data from / to the external storage medium, a parameter setting on-screen menu for setting the display parameters, the display parameters as internal storage means and the external storage On-screen menu for selection operation for selecting one of the media, image processing means for capturing and processing the image data, and recognition of the insertion state in response to the insertion of the external storage medium in the standby state And the display parameter interface It reads the display parameters from the external storage medium via a to execute the projection operation based on the display parameters read, and a control means for controlling the co 働動 operation between these components,
When the external storage medium is inserted in the standby state, the control unit recognizes the inserted external storage medium, and the display parameter and the image data are respectively received from the external storage medium via the image / display parameter interface unit. The image data is projected based on the read display parameters.

Another feature of the display parameter writing / reading method of the projector according to the present invention is that an external storage medium that stores preset values of display parameters for projecting input image data with a desired image quality; Display parameter interface means for inputting / outputting from / to an external storage medium, parameter setting on-screen menu for setting the display parameters, and selecting one of the display parameters from the internal storage means and the external storage medium Using an on-screen menu for selection operation and a control unit that executes a projection operation based on the display parameter and controls a cooperative operation between these components,
When the operator has selected whether to store the setting value as a result of setting the display parameter in the projector or in an external storage medium, and when the operator has selected to store in the projector, A step in which the control means terminates the process as it is, and a step in which the control means confirms the mounting of the external storage medium when the operator has selected to store the setting in the external storage medium;
As a result of the confirmation, when the external storage medium is recognized as not attached, the control unit performs error processing and ends without storing the setting value in the external storage medium;
If the external storage medium is mounted as a result of the confirmation, the control means performs a process for protecting the setting value and performing a process for reading the setting again and reflecting it on the projection screen after the setting value is protected and security-processed When,
And storing the set value subjected to the process that can be reflected in the external storage medium and ending.

  The error processing is a step of notifying the operator that the set value cannot be stored.

Further, in the processing step of causing the projector to read the setting value that has been subjected to the protection and security processing and stored in the external storage medium, the control means performs the protection / security of the setting value stored in the external storage medium. Performing a check to confirm whether the set value is reliable;
As a result of the confirmation, when it is recognized that the setting value has been tampered with by a third party, the reading of the setting value is interrupted, and the operator is informed that the setting value is invalid, and is terminated. When the control means determines that the set value stored in the external storage medium is reliable, the set value is read internally and reflected in the set value of the display parameter, and then the process is terminated. And can be stored in the external storage medium that executes the step.

  As an effect of the present invention, conventionally, since the memory capacity provided in the projector is limited, the amount of display parameters set by the user must be reduced due to the limitation. Since the display parameter setting values are stored in the external storage medium, there is no limit to the amount of display parameters, and even projectors that are used for the first time can be used normally by reading the display parameter setting values from the external storage medium. This makes it possible to use the projector in a state similar to the projected image quality, and as a result, there are no restrictions on storing user setting values, and the setting values set for a specific projector can be transferred to other projectors. Can also be diverted, simplifying the operating environment of the projector and improving the setting work efficiency .

  First, the outline of the present invention will be described. As display parameters for determining the image quality characteristics of the projector with respect to the external storage medium, the image adjustment values such as brightness, contrast, saturation, hue, gamma correction, color temperature, white A function for storing balance and setting values for image adjustment values such as aspect and resolution is provided, and a flash memory card and a medium equivalent thereto are used as storage media.

A first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram illustrating a configuration of a projector according to a first embodiment of the present invention, and FIG. 2 is a configuration diagram illustrating an application example of the first embodiment. Referring to FIG. 1, a projector 10 according to the present invention includes an image interface unit 1 for inputting image data from the outside, and an image processing unit 2 for correcting image data received via the image interface unit 1 to a predetermined image quality characteristic. Display parameter interface means 3 for inputting / outputting display parameters from / to the external storage medium 4, and external storage medium 4 for storing set values of display parameters set for projecting input image data with a predetermined desired image quality A parameter setting on-screen menu (not shown) for setting display parameters, and a selection operation on-screen menu (not shown) for selecting one of the internal storage means and the external storage medium 4 as the display parameter. ) And in response to the insertion of the external storage medium 4 in the standby state, the insertion state is recognized. At the same time, the display parameters are read from the external storage medium 4 via the display parameter interface means 3, and the image processing means 2 is made to process the image quality characteristics of the image data based on the read display parameters. And a control means (including an 8-bit one-chip microcomputer) 6 for controlling the cooperative operation between these components and an image projection means 7.

  The image interface 1 is an input unit for inputting an image signal from the outside under the control of the control unit 6. The image processing means 2 inputs an image signal output from the image interface 1 under the control of the control means 6, and each of the three primary colors red (R), green (G), and blue (B) is 8-bit digital. Brightness, contrast, saturation, hue, gamma correction, color temperature, aspect, resolution, etc. are set as display parameters for converting to data and setting the characteristics of the projected image to the image quality desired by the user.

  Examples of adjustment items to be set include the following items. The numerical value indicates the stage.

Image adjustment value setting value Brightness (-64 to 64)
Contrast (0-255)
Color (0-127)
Hue (0-60)
Sharpness (0 to 47)
Gamma correction (3 levels: dynamic / natural / soft)
Color temperature (6 levels: 5000/6500/7800/8500
/ 9300/10500)
White balance (brightness R / G / B-64-64,
Contrast R / G / B0-255)
Image adjustment value setting value Aspect (4 steps: 4: 3 / letterbox / 16: 9 / wide zoom)
Resolution (2 levels: full / real)
Each setting is stored in the memory in units of 1 byte (0xFF).

In addition, as for what the settings of gamma correction, color temperature, etc. are expressed as X stage,
0x01 is the A setting 0x02 is the B setting 0x03 is the C setting, and the control means 6 makes a determination by comparing the data and the setting.

An example of the flow of storing setting values in the internal storage means and the external storage medium 4 is as follows:
"RAM addressing"
↓
"data transfer"
↓
"Recognition by control means 6"
↓
"Processing by image processing means 2"
It becomes. That is,
For gamma correction,
Lower 4 bits “RAM addressing”: 0x00000010
"Data transfer": 0x01
“Recognition by the control means 6”: Dynamic “Processing by the image processing means 2”: An instruction is received to process the result calculated by the CPU.

Upper 4 bits "RAM addressing": 0x00000010
"Data transfer": 0x02
“Recognition by control means 6”: Natural “Processing by image processing means 2”: An instruction is received to process the result calculated by the CPU.

For brightness,
Lower 4 bits “RAM addressing”: 0x00000020
"Data transfer": 0x00
“Recognition by control means 6”: Numerical value “−64”
“Processing by image processing means 2”: An instruction is received to process at a brightness of “−64”.

Upper 4 bits “RAM addressing”: 0x00000020
"Data transfer": 0x3F
“Recognition by control means 6”: Numerical value “0”
“Processing by image processing means 2”: An instruction is received to process with brightness “0”.

In contrast, lower 4 bits "RAM addressing": 0x00000030
"Data transfer": 0x00
“Recognition by control means 6”: Numerical value “0”
“Processing by image processing means 2”: An instruction is received to perform processing with contrast “0”.

Upper 4 bits “RAM addressing”: 0x00000030
"Data transfer": 0x3F
“Recognition by control means 6”: Numerical value “63”
“Processing by image processing means 2”: Receives an instruction to process with contrast “63”.

  In the above example, display parameter setting value data set with user-desired image quality, such as contrast 0x00, is stored as binary data in the external storage medium 4, and the CPU of the control means 6 uses the stored address 0x00000030. The setting items will be interpreted.

  Depending on the item, the numerical value 0X00 as it is in the data is reflected in the adjustment value (contrast, etc.), and those having a setting stage such as gamma correction are processed by the control means 6 and then processed by the image processing means 2 Will be converted.

  The selection operation for selecting each setting and display parameter between the internal storage means and the external storage medium is based on an on-screen menu displayed on the liquid crystal screen of the liquid crystal projection means 7 of the projector 10. Done. Contrast etc. can be selected with the slide bar, and those with settings such as gamma correction can be selected with the radio button.

  The display parameter interface 3 is a component directly related to the present invention. The display parameter interface 3 stores the set value of the display parameter in the external storage medium 4 under the control of the control means 6, and conversely, the display parameter interface 3 is stored in the external storage medium 4. This is an interface for reading the set values of the displayed parameters and storing them in the internal storage means 5.

  The external storage medium 4 is composed of a semiconductor element, and is, for example, a flash memory card or a storage medium conforming thereto. The internal storage means 5 is a semiconductor storage element that is built in the projector 10 in advance, is written with display parameter setting values, and is mainly composed of DRAM.

  The control means 6 is, for example, an 8-bit one-chip microcomputer, and controls the operation of each functional block in the projector 10. The image projecting unit 7 is a component of the projection system optical system including a liquid crystal display screen for displaying an external input image whose image quality characteristic desired by the user has been set by the image processing unit 2 and projecting the image onto an external screen.

  Conventionally, the amount of memory set in the legal device is limited, and the amount of user settings is limited. In the present invention, since the set value is stored in the external storage medium, the number of settings is virtually unlimited. Also, even in a projector that is used for the first time, it is possible to use the projector in a state that does not change as usual by reading the value of the medium that stores the setting value.

  As described above, by providing the projector 10 with the function of storing the setting value in the external storage medium 4, it becomes possible to store the user setting value without limitation and to divert the personal setting value.

  Unrestricted recording means storing necessary display parameters without considering the amount of data because an external storage medium is used as a setting value.

  Diversion of personal setting values means that if there are multiple projectors of the same model and different locations (meeting rooms A, B, etc.), even if the projectors are in different locations and you want to use the same image / image settings, By carrying the external storage medium 4 storing personal setting values, the setting values can be applied, which means that the projector is used with the same settings.

  When multiple projectors are used, each projector has its own characteristics. Here, assuming that the projectors are of the same model, the same external storage medium parameters can be applied on the projection screen. Visible with image quality characteristics.

  Referring to FIG. 2 showing a block diagram for explanation when a plurality of external storage media 4 are used, the external storage media A, A ′, A in which a predetermined set value is duplicated for the external storage media 4 shown. "Or B, B ', B" or different combinations of display values for each of the plurality of external storage media 4, that is, combinations of A and B having completely different set values It shows that you can. Various image quality characteristics can be set in a short time with the sound to which these combinations are applied.

  Next, the operation of this embodiment will be described.

  First, in a basic setting procedure of the projector 10, the user projects an image of the projector 10 on a screen. Some users adjust brightness, contrast, color temperature, white balance, etc., and change the settings to their preference. Here, in addition to the internal storage means 5, the external storage medium 4 can be selected as the storage location of the set value.

  Referring to FIG. 3 showing a flowchart of the storage method stored in the external storage medium 4, first, according to the processing flow stored in advance in the ROM of the microcomputer of the control means 6, the set display parameter setting result is the same as the conventional one. Whether to store in the internal storage means 5 built in the projector 10 or to store in the external storage medium 4 is selected (step S2).

  Here, if the set value is to be stored in the internal storage means 5 inside the projector 10, step S2 is executed, and this process ends.

  On the other hand, when the settings of the projector 10 are stored in the external storage medium 4, first, the external storage medium 4 needs to be confirmed (step S3). If it is recognized in the confirmation step S3 that the external storage medium 4 does not exist, an error process is performed (step S4), and the process ends without storing the set value in the external storage medium 4. Here, as the error processing step S4, processing for notifying the user that the setting value cannot be stored is executed.

  If the presence of the external storage medium 4 is recognized as a result of the determination in step S3, protection and security are applied so that the setting value will not be tampered by a third party later (step S5), and the setting is read again to the projector 10. Work to reflect. Subsequently, the set value subjected to the work is stored in the external storage medium 4 (step S6), and the process ends.

  Next, referring to FIG. 4 showing a flowchart for reading the set values of the external storage medium 4 into the internal storage means 4 of the projector 10, first, the protection / security of the set values stored in the external storage medium 4 is checked. It performs (step S11). In this check, it is determined whether or not the set value is reliable (step S12).

  If it is determined in step S12 that the setting value has been tampered with by a third party, the setting value is not read into the projector 10 (step S13), and error processing is performed to notify the user that the setting value is invalid. (Step S14), and this reading operation is terminated.

  On the other hand, when the setting value stored in the external storage medium is determined to be reliable in step S12, the setting value is read into the internal storage means 5 of the projector 10 via the display parameter interface means 3 (step S15). ), Reflect the settings and exit.

  As described above, the user can store the setting values of the projector 10 as long as the number of external storage media allows. (Unlimited storage of user setting values)

  Referring to FIG. 5 showing a block diagram showing the configuration of the second embodiment of the present invention, image interface means 1 for inputting image data from the outside, and image data received via the image interface means 1 have a predetermined image quality. The image processing means 2 for correcting the characteristics, the display parameter interface means 3 for inputting / outputting display parameters from / to the external storage medium 4, and the display parameters set for projecting the input image data with a predetermined desired image quality. An external storage medium 4 for storing set values, a parameter setting on-screen menu (not shown) for setting display parameters, and a display parameter for selecting one of the internal storage means and the external storage medium 4 On-screen menu for selection operation (not shown) and response to insertion of external storage medium 4 in standby state The display state is recognized, the display parameter is read from the external storage medium 4 via the display parameter interface means 3, and the image processing means 2 processes the image quality characteristics of the image data based on the read display parameter. Control means (including an 8-bit one-chip microcomputer) 6 for causing the projection means 7 to execute a projection operation and controlling the cooperative operation between these components, and image projection means 7 are provided. The external storage medium 4 is shared between a plurality of projectors based on the control.

  The basic configuration is as shown in FIG. 1, but is different from the first embodiment in that a plurality of projectors are used as a use scene.

  That is, in the first embodiment, one or a plurality of external storage media 4 are prepared for one projector, and the operation for causing the external storage media 4 to store or read the setting values of the projector is the first embodiment. It is as follows. Here, the difference is that the setting value stored in the internal storage means 5 of the first projector 10a is read by another second projector 10b.

  The setting value is stored in the external storage medium 4 from the first projector 10a and the setting value reading operation to the external storage medium 4 or the second projector 10b is the same as in the first embodiment.

  Since projectors of the same model can be regarded as having the same basic characteristics, the external storage medium 4 in which the same set values are stored can be applied to the second projector 10b.

  As an effect obtained in the second embodiment, the setting value of the user-preferred projector can be stored in the external storage medium 4 and carried so that other projectors can be used with the same user-preferred image quality characteristic setting. (Diverted personal settings)

  Next, Example 3 will be described.

  Referring to FIG. 6 showing a block diagram showing the configuration of the third embodiment of the present invention, the projector 10 of the present invention corrects the image data received via the image / display parameter interface 8 to a predetermined image quality characteristic. Image processing means 2 for displaying, display parameter interface means 3 for inputting / outputting display parameters from / to the external storage medium 4, and display parameters set for projecting input image data and input image data with a predetermined desired image quality. One of the external storage medium 4 for storing the set value, the parameter setting on-screen menu (not shown) for setting the display parameter, and the display parameter for selecting either the internal storage means or the external storage medium 4 On-screen menu for selecting operation (not shown) and insertion of the external storage medium 4 in the standby state In response to this, the insertion state is recognized, the image data is read from the external storage medium 4 to the image processing means via the image / display parameter interface 8, and the display parameters are also read. Based on the read display parameters, the image processing means 2 is read. Control means (including an 8-bit one-chip microcomputer) 6 for processing image quality characteristics of image data to cause the image projection means 7 to execute a projection operation and controlling the cooperative operation between these components, and image projection Means 7.

  The difference from the first embodiment is that the image interface means 1 is not provided but an image / display parameter interface 8 is provided instead. The image / display parameter interface 8 inputs external image data and display parameters from the same external storage medium 9.

  In the external storage medium directory structure of the external storage medium 9, files of data and image are provided as subdirectories under the root directory root as follows.

/ -Root
-Data ← Image setting value is stored (saved) (binary file)
-Image ← Image data is stored (saved) (JPEG file or BMP file)
・
・
・
・
As described above, since the display parameter data and the image data image (JPEG file or BMP file) are stored in one external storage medium 9, the display parameter data is read into the internal storage means 5, and the image data The image is read by the image processing means 2. The subsequent processing is the same as that in the first embodiment.

  In the third embodiment, the use of the interface portion reduces the number of components and contributes to cost reduction.

  As an application example of the present invention, user-friendly image quality characteristics can be easily set by storing display parameters in an external storage medium and setting the projector using the display parameters stored in the external storage medium. Therefore, it is possible to store necessary display parameters without considering the amount of display parameter setting data. Furthermore, if there are a plurality of projectors of the same model and different locations (meeting rooms A, B, etc.), If you want to use the same image / image settings even if the projectors are in different locations, you can apply the settings by carrying an external storage medium that stores personal settings, and use the projector with the same settings. In this case, setting is possible in a short time, which is effective for conference management regardless of the size of the venue.

1 is a block diagram illustrating a configuration of a projector according to a first embodiment of the present invention. It is a block diagram for description in the case of using a plurality of external storage media. 4 is a flowchart of a storage method for storing in an external storage medium 4. 4 is a flowchart of a storage method for storing a set value of an external storage medium 4 in the internal storage unit 4 of the projector 10. It is the block diagram which showed the structure of Example 2 of this invention. It is the block diagram which showed the structure of Example 3 of this invention. 10 is a block diagram showing a configuration of Reference Patent Document 3. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Image interface 2 Image processing means 3 Display parameter interface 4, 9 External storage medium 5 Internal storage means 6 Control means 7 Image projection means 8 Image / display parameter interface 10, 10a, 10b Projector 11a, 11b Liquid crystal projector 15 Microcomputer 18 2nd Memory 19, 20 Communication port

Claims (19)

A projector having a display parameter storage control function for selectively storing display parameter setting values preset in order to project input image data with a desired image quality in an internal storage means or an external storage medium. An external storage medium that stores preset values of display parameters for projecting input image data with desired image quality, display parameter interface means for inputting and outputting the display parameters from the external storage medium, and the display A parameter setting on-screen menu for setting parameters, a selection operation on-screen menu for selecting one of the internal storage means and the external storage medium for the display parameter, and the external storage medium in a standby state In response to the insertion, the display state is recognized, the display parameter is read from the external storage medium via the display parameter interface means, and the projection operation is executed based on the read display parameter. Control that controls the cooperative movement between elements Projector, characterized in that it comprises a stage. An external storage medium that stores preset values of display parameters for projecting input image data with a desired image quality, and an image / display for inputting / outputting the display parameters and the image data from / to the external storage medium, respectively. A parameter interface unit, a parameter setting on-screen menu for setting the display parameter, a selection operation on-screen menu for selecting one of the internal storage unit and the external storage medium for the display parameter, Image processing means for fetching and projecting the image data; and in response to insertion of the external storage medium in a standby state, recognizing the insertion state and displaying the display parameter from the external storage medium via the display parameter interface means Read the table Parameter to execute the projection operation on the basis, and the projector characterized by comprising a control means for controlling the co 働動 operation between these components. In a projector that projects input image data with a desired image quality, a single external storage medium that stores setting values of display parameters set in advance for projecting with the desired image quality and is shared by a plurality of the projectors; Display parameter interface means for inputting / outputting the display parameters from / to the external storage medium, an on-screen menu for parameter setting for setting the display parameters, the display parameters for the internal storage means and the external storage medium An on-screen menu for selecting operation for selecting one of them, and a control unit that executes a projection operation based on the display parameter and controls a cooperative operation between these components. projector. An external storage medium that stores preset values of display parameters for projecting input image data with a desired image quality, and an image / display for inputting / outputting the display parameters and the image data from / to the external storage medium, respectively. A parameter interface unit, a parameter setting on-screen menu for setting the display parameter, a selection operation on-screen menu for selecting one of the internal storage unit and the external storage medium for the display parameter, Image processing means for fetching and projecting the image data; and in response to insertion of the external storage medium in a standby state, recognizing the insertion state and displaying the display parameter from the external storage medium via the display parameter interface means Read the table Control means for executing a projection operation based on parameters and controlling a cooperative operation between these components, and sharing the external storage medium among the plurality of projectors based on the control of the control means Projector. As the display parameters stored in the external storage medium, image adjustment values including at least screen brightness, luminance, saturation, hue, gamma correction value, color temperature and white balance setting values, and at least aspect and resolution settings 6. The projector according to claim 1, comprising an image adjustment value including a value. 6. The projector according to claim 1, comprising a plurality of the external storage media, wherein different values are set as the display parameters for each of the external storage media. 5. The projector according to claim 1, wherein the external storage medium is a medium composed of a semiconductor element. The projector according to claim 1, 2, 3, 4, or 5, wherein the projector has a security function for protecting the set value of the display parameter stored in the external storage medium from tampering by a third party. An external storage medium for storing display parameter setting values set in advance for projecting input image data with desired image quality, display parameter interface means for inputting / outputting the display parameters from / to the external storage medium, and the display A parameter setting on-screen menu for setting a parameter, a selection operation on-screen menu for selecting one of the internal storage means and the external storage medium for the display parameter, and a projection operation based on the display parameter Control means for controlling the cooperative operation between these components, and when using the display parameters of the external storage medium, an operator inserts the external storage medium and turns on the selection operation. Activate the screen menu and respond to the valid state Display parameter writing and reading method of the projector, characterized in that to execute a projection operation on the basis of the control means reads the display parameters from the external storage medium via the display parameter interface unit, read the display parameters. An external storage medium that stores preset values of display parameters for projecting input image data with desired image quality, display parameter interface means for inputting and outputting the display parameters from the external storage medium, and the display A parameter setting on-screen menu for setting a parameter, a selection operation on-screen menu for selecting one of the internal storage means and the external storage medium for the display parameter, and a projection operation based on the display parameter And control means for controlling the cooperative operation between these components,
When the external storage medium is inserted in a standby state, the control unit recognizes the inserted external storage medium and reads the display parameter from the external storage medium via the display parameter interface unit. A display parameter writing / reading method for a projector, characterized in that a projection operation is executed based on the above. In a display parameter writing / reading method for a projector that projects input image data with a desired image quality, a single external storage medium that stores setting values of display parameters set in advance for projecting with the desired image quality, and the display parameter Display parameter interface means for inputting / outputting from / to the external storage medium, a parameter setting on-screen menu for setting the display parameter, one of the internal storage means and the external storage medium for the display parameter. A selection operation on-screen menu for selection, and a control unit for executing a projection operation based on the display parameter and controlling a cooperative operation between these components, and a plurality of units based on the control of the control unit. A single external storage medium between the projectors Display parameter writing and reading method of the projector, characterized by use. An external storage medium that stores preset values of display parameters for projecting input image data with a desired image quality, and an image / display for inputting / outputting the display parameters and the image data from / to the external storage medium, respectively. A parameter interface unit, a parameter setting on-screen menu for setting the display parameter, a selection operation on-screen menu for selecting one of the internal storage unit and the external storage medium for the display parameter, Image processing means for fetching and projecting the image data; and in response to insertion of the external storage medium in a standby state, recognizing the insertion state and displaying the display parameter from the external storage medium via the display parameter interface means Read the table To execute the projection operation on the basis of the parameter, and a control means for controlling the co 働動 operation between these components,
When the external storage medium is inserted in the standby state, the control unit recognizes the inserted external storage medium, and the display parameter and the image data are respectively received from the external storage medium via the image / display parameter interface unit. A display parameter writing / reading method for a projector, wherein the image data projection operation is executed based on the read display parameters. An external storage medium that stores preset values of display parameters for projecting input image data with desired image quality, display parameter interface means for inputting and outputting the display parameters from the external storage medium, and the display A parameter setting on-screen menu for setting a parameter, a selection operation on-screen menu for selecting one of the internal storage means and the external storage medium for the display parameter, and a projection operation based on the display parameter And control means for controlling the cooperative operation between these components,
When the operator has selected whether to store the setting value as a result of setting the display parameter in the projector or in an external storage medium, and when the operator has selected to store in the projector, A step in which the control means terminates the process as it is, and a step in which the control means confirms the mounting of the external storage medium when the operator has selected to store the setting in the external storage medium;
As a result of the confirmation, when the external storage medium is recognized as not attached, the control unit performs error processing and ends without storing the setting value in the external storage medium;
As a result of the confirmation, if an external storage medium is mounted, the control means performs protection and security processing for the set value, and then performs processing that reads the setting again and reflects it on the projection screen of the projector When,
And a step of storing the set value subjected to the process that can be reflected in an external storage medium and then ending the display value. 15. The display parameter writing / reading method for a projector according to claim 14, wherein the error processing is a step of notifying an operator that the set value cannot be stored. In the processing step of causing the projector to read the setting value that has been subjected to the protection and security processing and stored in the external storage medium, the control means checks the protection / security of the setting value stored in the external storage medium. And confirming whether the set value is reliable,
As a result of the confirmation, when it is recognized that the setting value has been tampered with by a third party, the reading of the setting value is interrupted, and the operator is informed that the setting value is invalid, and is terminated. When the control means determines that the set value stored in the external storage medium is reliable, the set value is read internally and reflected in the set value of the display parameter, and then the process is terminated. 15. The display parameter writing / reading method for a projector according to claim 14, wherein the display parameter is stored in the external storage medium for executing the step. An external storage medium that stores preset values of display parameters for projecting input image data with desired image quality, display parameter interface means for inputting and outputting the display parameters from the external storage medium, and the display A parameter setting on-screen menu for setting a parameter, a selection operation on-screen menu for selecting one of the internal storage means and the external storage medium for the display parameter, and a projection operation based on the display parameter And control means for controlling the cooperative operation between these components,
Responding to the result of the operator selecting whether to store the setting value as a result of setting the display parameter in the projector or in the external storage medium in the step of selecting whether to store in the projector. The control means ending the processing as it is, and the control means confirming the mounting of the external storage medium in response to the result of the operator selecting the method of storing the setting in the external storage medium; As a result of the confirmation, if it is recognized that the external storage medium is not installed, the control means performs an error process and terminates without storing the set value in the external storage medium, and as a result of the confirmation, the external storage medium is installed If the control means has applied the protection and security processing to the set value, the setting is read again and reflected in the projection screen of the projector. That process comprising the steps of applying, and the step of ending storing the set value subjected to the reflection can be processed in an external storage medium, a program to be executed by a microcomputer of the control unit. The program according to claim 16, wherein the error processing is a step of notifying an operator that the set value cannot be stored. In the processing step of causing the projector to read the setting value that has been subjected to the protection and security processing and stored in the external storage medium, the control means checks the protection / security of the setting value stored in the external storage medium. And confirming whether or not the setting value is reliable, and if it is recognized that the setting value has been tampered with by a third party, reading of the setting value is interrupted and the setting value is A step of notifying the operator that the value is invalid and ending, and if the control means determines that the setting value stored in the external storage medium is reliable, the setting value is read internally. And causing the microcomputer of the control means to execute the step of terminating the processing after reflecting the setting value of the display parameter.

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