JP4873121B2 - Processing system, projector, program, information storage medium, and setting information update method - Google Patents

Description

  The present invention relates to a projector processing system, a projector, a program, an information storage medium, and a setting information update method.

  In order to reduce the manufacturing cost, a general-purpose subsystem having an external interface function or the like is used for the projector.

  Even in such a case, the projector needs to perform a function setting corresponding to the setting by the user, a function change for accommodating a new connected device, and the like on the subsystem.

  For example, Patent Document 1 describes that a projector updates the operating system inside the projector based on a program stored in an external PC card so that a new operating system can be used.

  When such a function change is performed, for example, it is conceivable to change the function of a remote controller that controls the projector and the PC.

For example, Patent Document 2 describes changing the function of a remote controller that controls a projector and a PC.
JP 2002-31844 A JP 2002-64883 A

  As described above, when a function change or the like is performed, a method of updating the information inside the projector based on information stored in the external storage device is conceivable. It is necessary to provide the subsystem with a configuration for reading information stored in the external storage device, which is contrary to the purpose of reducing the manufacturing cost.

  Also, Patent Document 2 describes that the function information of the remote controller is stored in the storage unit of the remote controller or the storage unit of the PC, and is not configured to be stored in the storage unit inside the projector.

  An object of the present invention is to provide a processing system, a projector, a program, and an information storage capable of changing the correspondence between operation information and a key code without adding a configuration for reading information stored in an external storage device. To provide a medium and setting information update method.

A processing system according to the present invention includes at least a main system that performs image processing,
A subsystem having at least an external interface function;
A shared storage unit that stores variable information that can be updated during operation of the main system;
A control unit that controls access to the shared storage unit;
A processing system for a projector that can be connected to an external device via a wired or wireless transmission path,
The variable information includes association information indicating association between operation information for the projector and a key code of the external device,
The control unit prohibits access from the subsystem to the shared storage unit while the main system is operating, and permits access from the subsystem to the shared storage unit while the main system is stopped,
The subsystem reads the variable information while the main system is stopped, and stores it in a storage unit of the subsystem.

  In addition, a projector according to the present invention includes the above processing system.

A program according to the present invention includes a computer included in a projector.
A main system that performs at least image processing;
A subsystem having at least an external interface function;
A shared storage unit that stores variable information that can be updated during operation of the main system;
A program for functioning as a control unit for controlling access to the shared storage unit,
The projector can be connected to an external device via a wired or wireless transmission path,
The variable information includes association information indicating association between operation information for the projector and a key code of the external device,
The control unit prohibits access from the subsystem to the shared storage unit while the main system is operating, and permits access from the subsystem to the shared storage unit while the main system is stopped,
The subsystem reads the variable information while the main system is stopped, and stores it in a storage unit of the subsystem.

  An information storage medium according to the present invention stores the above program.

A setting information update method according to the present invention includes at least a main system that performs image processing,
A subsystem having at least an external interface function;
A setting information update method for a projector using a computer having a shared storage unit that stores variable information that can be updated during operation of the main system,
The projector can be connected to an external device via a wired or wireless transmission path,
The variable information includes association information indicating association between operation information for the projector and a key code of the external device,
The main system updates the variable information,
The main system stops operating,
The subsystem reads the variable information;
The sub-system operates based on the read variable information.

  According to the present invention, the subsystem can operate based on the updated variable information. Thereby, the processing system or the like can change the association between the operation information and the key code without adding a configuration for reading the information stored in the external storage device.

The processing system according to the present invention includes at least a main system for performing image processing,
A subsystem having at least an external interface function;
A shared storage unit that stores variable information that can be updated during operation of the main system;
A control unit that controls access to the shared storage unit;
A processing system for a projector that can be connected to an external device via a wired or wireless transmission path,
The variable information includes association information indicating association between operation information for the projector and a key code of the external device,
The control unit prohibits access from the subsystem to the shared storage unit while the main system is operating, and permits access from the subsystem to the shared storage unit while the main system is stopped,
When the variable information is updated, the main system outputs notification information indicating the update contents to the subsystem.

  In addition, a projector according to the present invention includes the above processing system.

A program according to the present invention includes a computer included in a projector.
A main system that performs at least image processing;
A subsystem having at least an external interface function;
A shared storage unit that stores variable information that can be updated during operation of the main system;
A program for functioning as a control unit for controlling access to the shared storage unit,
The projector can be connected to an external device via a wired or wireless transmission path,
The variable information includes association information indicating association between operation information for the projector and a key code of the external device,
The control unit prohibits access from the subsystem to the shared storage unit while the main system is operating, and permits access from the subsystem to the shared storage unit while the main system is stopped,
When the variable information is updated, the main system outputs notification information indicating the update contents to the subsystem.

  An information storage medium according to the present invention stores the above program.

A setting information update method according to the present invention includes at least a main system that performs image processing,
A subsystem having at least an external interface function;
A setting information update method for a projector using a computer having a shared storage unit that stores variable information that can be updated during operation of the main system,
The projector can be connected to an external device via a wired or wireless transmission path,
The variable information includes association information indicating association between operation information for the projector and a key code of the external device,
The main system updates the variable information,
The main system outputs notification information indicating the update contents of the variable information to the subsystem,
The sub-system operates based on the notification information.

  According to the present invention, the subsystem can operate by reflecting the notification information immediately. Thereby, the processing system or the like can change the association between the operation information and the key code without adding a configuration for reading the information stored in the external storage device.

The shared storage unit stores fixed information that cannot be updated while the main system is operating,
The fixed information includes an initial value of the association information,
The subsystem reads the variable information and the fixed information while the main system is stopped, stores the information in a storage unit included in the subsystem, and prioritizes the variable information over the fixed information during the operation of the subsystem. May operate as well.

  According to this, the subsystem can operate by reflecting the contents of the variable information.

  Further, the shared storage unit may be a nonvolatile memory.

  According to this, the shared storage unit can hold the stored contents even when the power is not supplied.

Further, the projector is connected to the external device via a USB cable,
The key code may be a USB key code.

  According to this, the processing system or the like can change the USB key code for the operation content.

  The operation information may be operation information of an operation unit of a remote controller for the projector.

  According to this, the processing system or the like can change the key code for the operation content of the remote controller.

  Hereinafter, a case where the present invention is applied to a processing system for a projector will be described as an example with reference to the drawings. In addition, the embodiment shown below does not limit the content of the invention described in the claim at all. In addition, all of the configurations shown in the following embodiments are not necessarily essential as means for solving the problems described in the claims.

  First, functional blocks of the processing system in this embodiment will be described.

  FIG. 1 is a functional block diagram of a processing system 100 in the present embodiment.

  The projector 10 outputs a USB key code to a PC 20 that is a kind of external device via a USB cable 30 that is a kind of wired transmission path. As a result, the PC 20 performs image scrolling and the like similar to when the USB keyboard is operated.

  The projector 10 has a processing system 100. The processing system 100 includes a subsystem 110 having an external interface function, a main system 120 having an image processing function, a shared storage unit 140, and a control unit 130 that controls access to the shared storage unit 140. It is configured.

  The subsystem 110 includes a storage unit 112. The main system 120 also presents information that prompts the user to update the variable information 144, an instruction input unit 124 that inputs an instruction to update the variable information 144 by the user, and variable based on the update instruction. And an update unit 126 that updates the information 144.

  The shared storage unit 140 also includes variable information 144 indicating variable association information indicating the updated USB key code, a default value (initial value) of the variable information 144, a remote control (remote controller) key code (operation information), and the like. Fixed information 142 indicating fixed association information with the USB key code is stored. Here, the fixed information 142 is fixed information that cannot be updated by the main system 120, and the variable information 144 is variable information that can be updated by the main system 120.

  Here, the association information in the present embodiment will be described.

  FIG. 2 is a schematic diagram of the association information in the present embodiment.

  The fixed information 142 includes fixed association information. The fixed association information includes a first remote control key code, a first USB key code, a second remote control key code, a second USB key code to an nth remote key code, and an nth USB key code. The correspondence between the key codes of the n sets of remote controllers and the USB key codes is shown. For example, the processing system 100 outputs a first USB key code (for example, the up arrow key) to the PC 20 when the user uses a first remote control key code (for example, the up arrow key).

  The variable information 144 includes variable association information. The variable association information indicates m updated USB key codes such as an updated first USB key code, an updated second USB key code to an m-th USB key code. For example, when the user uses a first remote control key code (for example, the up arrow key), the processing system 100 outputs the first updated USB key code (for example, the PageUp key) to the PC 20.

  In addition, you may comprise these each part using the following hardwares, for example.

  FIG. 3 is a hardware block diagram of the processing system 100 in the present embodiment.

  For example, the CPU 912, the RAM 914, the ROM 916, and the like as the subsystem 110, the CPU 922, the RAM 924, the ROM 926, and the like as the main system 120, and the control unit 130 as an interface unit 932 that exchanges information with the subsystem 110, the main system 120, and the like. Functions of each unit are implemented in a computer using a non-volatile memory such as a flash memory 940 as the shared storage unit 140, such as an ASIC 930 having an interface unit 934 that exchanges information and a memory controller 936 that exchanges information with the shared storage unit 140 Can be made.

  The presenting unit 122 includes, for example, a liquid crystal panel that projects an image, a mirror, and a projection circuit. The instruction input unit 124 includes, for example, a light receiving unit that inputs information from a so-called remote controller. For example, the function of each unit can be implemented in a computer using the CPU 922 or the like.

  In addition, some or all of these units may be implemented as hardware such as a circuit, or may be implemented as software such as a driver.

  Furthermore, the function of the control unit 130 or the like may be implemented in the computer by reading the program from the information storage medium 950 that stores the program for causing the computer to function as the control unit 130 or the like.

  As such an information storage medium 950, for example, a CD-ROM, DVD-ROM, ROM, RAM, HDD or the like can be applied, and the program reading method can be a contact method or a non-contact method. Good.

  Further, in place of the information storage medium 950, the above-described functions can be implemented by downloading a program or the like for implementing the above-described functions from a host device or the like via a transmission path.

  In the present embodiment, the processing system 100 can adopt a method of reflecting the updated variable information 144 when the main system 120 is stopped or a method of reflecting it immediately.

  Hereinafter, these methods will be described in more detail. First, a method for reflecting the updated variable information 144 when the main system 120 is stopped will be described.

  FIG. 4 is a flowchart for reflecting the variable information 144 when the main system 120 is stopped in this embodiment.

  The subsystem 110 is activated when the projector 10 is energized. In this state, the main system 120 is not activated, and the shared storage unit 140 can be accessed only from the subsystem 110.

  The subsystem 110 reads the variable information 144 and stores it in the storage unit 112 when energized. As a result, the subsystem 110 can operate based on the variable information 144.

  When the power switch of the projector 10 is pressed by the user, the subsystem 110 issues an activation command to the main system 120, and the main system 120 is activated. In this state, only the main system 120 can access the shared storage unit 140.

  Such access control is performed by the control unit 130 switching the bus.

  Then, the presentation unit 122 projects an image that prompts the user to update the variable information 144 (for example, an image that selects the first USB key code for the first remote control key code).

  The instruction input unit 124 receives light from the remote controller and determines whether there is an instruction to update the variable information 144 from the user (step S1). Here, for example, it is assumed that there has been an update instruction for outputting the PageUp USB key code to the up arrow key of the remote controller.

  When there is an update instruction, the main system 120 updates the variable information 144 (step S2). More specifically, for example, the update unit 126 deletes the variable information 144 and updates the variable information 144 based on the default value of the variable information 144 stored in the fixed information 142 and the update instruction information from the user. . If the update unit 126 is able to update normally, the update unit 126 writes update completion information (for example, a table ID) indicating that the update was successful in the head address portion of the variable information 144.

  As a result, the PageUp USB key code is written in the first USB key code of the variable association information of the variable information 144. When the variable information 144 is initialized (eg, when the main system 120 is activated), the main system 120 sets a special value (for example, FF in hexadecimal) for each USB key code value of the variable information 144. May be. As a result, the main system 120 and the subsystem 110 can easily determine whether the USB key code has been updated.

  When the update of the variable information 144 is completed or when there is no update instruction, the subsystem 110 determines whether or not the main system 120 is stopped based on the stop notification from the main system 120 (step S3).

  When the main system 120 is not stopped, the processing system 100 repeatedly executes the processes of steps S1 to S3.

  On the other hand, when the main system 120 outputs a stop notification to the subsystem 110, that is, when the main system 120 stops, the control unit 130 switches the bus so that the subsystem 110 can access the shared storage unit 140, and The system 110 reads the variable information 144 (step S4).

  More specifically, for example, the subsystem 110 acquires information on the start address of the variable information 144 from the fixed information 142, refers to the start address portion of the variable information 144, and the table ID of the variable information 144 is stored in the storage unit 112. It is determined whether or not it matches the table ID stored in. If they match, the variable information 144 is normal, so the subsystem 110 reads the variable information 144 and stores it in the storage unit 112.

  Then, the subsystem 110 operates based on the read (stored) variable information 144 (step S5).

  Thereby, for example, when the user presses the up arrow key of the remote controller, the subsystem 110 causes the fixed association information in the fixed information 142 stored in the storage unit 112 and the variable information 144 stored in the storage unit 112. The PageUp key code is output to the PC 20 based on the variable association information.

  When the table ID of the variable information 144 does not match the table ID of the storage unit 112, the subsystem 110 reads out the fixed information 142 and the variable information 144 when the main system 120 is stopped, for example, and stores it in the storage unit 112. The default value of the variable information 144 may be read from the fixed information 142 stored in the storage unit 112, and the operation may be performed based on the default value.

  Through the above procedure, the subsystem 110 can reflect the updated variable information 144 when the main system 120 is stopped.

  Next, a method for immediately reflecting the updated variable information 144 will be described.

  FIG. 5 is a flowchart for immediately reflecting the variable information 144 in the present embodiment.

  The instruction input unit 124 receives light from the remote controller and determines whether there is an instruction to update the variable information 144 from the user (step S11).

  When there is an update instruction, the main system 120 updates the variable information 144 (step S12).

  When the update of the variable information 144 is completed, the main system 120 outputs notification information indicating the update contents of the variable information 144 to the subsystem 110 (step S13). The notification information corresponds to, for example, information indicating the offset position from the head address of the variable information 144, data of the offset position, and the like.

  The subsystem 110 inputs the notification information (step S14).

  Then, the subsystem 110 operates based on the information regarding the variable information 144 in the storage unit 112 and the notification information (step S15). In this case, the subsystem 110 may immediately reflect the notification information in the information regarding the variable information 144 in the storage unit 112.

  By the above procedure, the subsystem 110 can immediately reflect the updated variable information 144.

  Also by this, for example, when the user presses the up arrow key of the remote controller, the subsystem 110 causes the fixed association information in the fixed information 142 stored in the storage unit 112 and the variable information stored in the storage unit 112. The PageUp key code is output to the PC 20 based on the variable association information in 144.

  As described above, according to the present embodiment, the subsystem 110 is variable by reading the variable information 144 in a state where the main system 120 is stopped, or inputting notification information while the main system 120 is activated. Since the operation can be performed by reflecting the updated contents of the information 144, a function change or the like can be performed without adding a configuration for reading the information stored in the external storage device.

  Thereby, for example, even when the function setting information of the subsystem 110 is stored in the mask ROM and cannot be updated, the subsystem 110 can dynamically reflect the information updated by the main system 120 at the time of image projection. it can. Therefore, the user can change the function of the subsystem 110 while using the inexpensive and general-purpose subsystem 110 as usual.

  Further, according to this embodiment, the association between the remote control key code and the USB key code can be changed. Thereby, the processing system 100 can improve versatility. Further, the remote control for the projector can also improve versatility.

  Further, according to the present embodiment, the processing system 100 provides the fixed information 142 and stores the default value of the variable information 144 in the fixed information 142, so that the variable information 144 is broken. Also, the contents of the variable information 144 can be restored from the fixed information 142.

  Further, according to the present embodiment, the processing system 100 can hold the stored content even when the power is not supplied by using a non-volatile memory as the shared storage unit 140.

  Furthermore, according to the present embodiment, the processing system 100 can update the variable information 144 in accordance with a user instruction. Thereby, the user can easily change the variable information 144 to his / her desired setting.

  The preferred embodiments to which the present invention is applied have been described above, but the application of the present invention is not limited to the above-described examples.

  For example, the main system 120 may provide variable association information in the variable information 144 in the form of fixed association information shown in FIG. In this case, the main system 120 may store the default value of the variable association information in the fixed information 142.

  Further, for example, when a plurality of types of settings of the variable information 144 are changed at the same time, the main system 120 may output information indicating completion of output to the subsystem 110 after the notification information is output a plurality of times. According to this, the subsystem 110 can grasp the output completion, and can reflect the notification information when the output is completed.

  Further, the operation information is not limited to the key code of the remote controller, and may be, for example, the key code of the keyboard of the projector 10 or the like.

  Further, the key code associated with the operation information is not limited to the USB key code, and may be, for example, the key code of the keyboard of the PC 20.

  Further, the shared storage unit 140 is not limited to a flash memory, and for example, a RAM or the like may be used. In this case, for example, the processing system 100 may store the fixed information 142 in the flash memory and store the variable information 144 in the shared storage unit 140 configured by a RAM.

  As the projector 10, a liquid crystal projector, a projector using a CRT (Cathode Ray Tube), a projector using a DMD (Digital Micromirror Device), or the like may be used. DMD is a trademark of Texas Instruments Incorporated. Further, the projector 10 may be a front projection type or a rear projection type.

  Further, the external device is not limited to the PC 20, and may be a PDA, a mobile phone, or the like, for example.

  The transmission path connecting the projector 10 and the PC 20 is not limited to a wired transmission path such as the USB cable 30 or the serial cable, and may be a wireless transmission path.

It is a figure which shows the functional block of the processing system in a present Example. It is a schematic diagram of the correlation information in a present Example. It is a hardware block diagram of the processing system in a present Example. It is a flowchart in the case of reflecting variable information at the time of the main system stop in a present Example. It is a flowchart in the case of reflecting variable information in a present Example immediately.

Explanation of symbols

10 projector, 20 PC (external device), 30 USB cable (transmission path), 100 processing system, 110 subsystem, 120 main system, 130 control unit, 140 shared storage unit, 142 fixed information, 144 variable information

Claims (12)

A main system that performs at least image processing;
A subsystem having at least an external interface function;
A shared storage unit that stores variable information that can be updated during operation of the main system;
A control unit that controls access to the shared storage unit;
A processing system for a projector that can be connected to an external device via a wired or wireless transmission path,
The variable information includes association information indicating association between operation information for the projector and a key code of the external device,
The control unit prohibits access from the subsystem to the shared storage unit while the main system is operating, and permits access from the subsystem to the shared storage unit while the main system is stopped,
The processing system is characterized in that the subsystem reads out the variable information and stores it in a storage unit of the subsystem while the main system is stopped. A main system that performs at least image processing;
A subsystem having at least an external interface function;
A shared storage unit that stores variable information that can be updated during operation of the main system;
A control unit that controls access to the shared storage unit;
A processing system for a projector that can be connected to an external device via a wired or wireless transmission path,
The variable information includes association information indicating association between operation information for the projector and a key code of the external device,
The control unit prohibits access from the subsystem to the shared storage unit while the main system is operating, and permits access from the subsystem to the shared storage unit while the main system is stopped,
When the main system updates the variable information, the main system outputs notification information indicating the update content to the subsystem. In the processing system according to claim 1 or 2,
The shared storage unit stores fixed information that cannot be updated while the main system is operating,
The fixed information includes an initial value of the association information,
The subsystem reads the variable information and the fixed information while the main system is stopped, stores the information in a storage unit included in the subsystem, and prioritizes the variable information over the fixed information during the operation of the subsystem. A processing system characterized by operating as In the processing system in any one of Claims 1-3,
The processing system, wherein the shared storage unit is a nonvolatile memory. In the processing system in any one of Claims 1-4,
The projector is connected to the external device via a USB cable,
The processing system according to claim 1, wherein the key code is a USB key code. In the processing system in any one of Claims 1-5,
The processing system, wherein the operation information is operation information of an operation unit of a remote controller for the projector.   A projector comprising the processing system according to claim 1. A computer with a projector,
A main system that performs at least image processing;
A subsystem having at least an external interface function;
A shared storage unit that stores variable information that can be updated during operation of the main system;
A program for functioning as a control unit for controlling access to the shared storage unit,
The projector can be connected to an external device via a wired or wireless transmission path,
The variable information includes association information indicating association between operation information for the projector and a key code of the external device,
The control unit prohibits access from the subsystem to the shared storage unit while the main system is operating, and permits access from the subsystem to the shared storage unit while the main system is stopped,
The subsystem reads the variable information while the main system is stopped, and stores the variable information in a storage unit included in the subsystem. A computer with a projector,
A main system that performs at least image processing;
A subsystem having at least an external interface function;
A shared storage unit that stores variable information that can be updated during operation of the main system;
A program for functioning as a control unit for controlling access to the shared storage unit,
The projector can be connected to an external device via a wired or wireless transmission path,
The variable information includes association information indicating association between operation information for the projector and a key code of the external device,
The control unit prohibits access from the subsystem to the shared storage unit while the main system is operating, and permits access from the subsystem to the shared storage unit while the main system is stopped,
The main system, when the variable information is updated, outputs notification information indicating the update contents to the subsystem.   A computer-readable information storage medium storing the program according to claim 8 or 9. A main system that performs at least image processing;
A subsystem having at least an external interface function;
A shared storage unit that stores variable information that can be updated during operation of the main system ;
A control unit for controlling access to the shared storage unit, and a setting information update method for a projector using a computer,
The projector can be connected to an external device via a wired or wireless transmission path,
The variable information includes association information indicating association between operation information for the projector and a key code of the external device,
The control unit prohibits access from the subsystem to the shared storage unit while the main system is operating, and permits access from the subsystem to the shared storage unit while the main system is stopped,
The sub-system reads the variable information while the main system is stopped, and stores the variable information in a storage unit included in the sub-system . A main system that performs at least image processing;
A subsystem having at least an external interface function;
A shared storage unit that stores variable information that can be updated during operation of the main system ;
A control unit for controlling access to the shared storage unit, and a setting information update method for a projector using a computer,
The projector can be connected to an external device via a wired or wireless transmission path,
The variable information includes association information indicating association between operation information for the projector and a key code of the external device,
The control unit prohibits access from the subsystem to the shared storage unit while the main system is operating, and permits access from the subsystem to the shared storage unit while the main system is stopped,
The main system updates the variable information,
It said main system, setting information updating method comprising output to Rukoto notification information indicating the update content of the variable information to the subsystem.

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