JP3591649B2 - How to register television and television setting data - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a television and a method for registering television setting data, and more particularly to a television for performing initial setting adjustment in a factory and a method for registering television setting data.
[0002]
[Prior art]
Conventionally, as this type of television, a technique disclosed in Japanese Patent Application Laid-Open No. 9-18899 is known. In this technology, an image for adjustment inspection is displayed on a television, and when adjusting the image quality by the image quality adjustment inspection device, a data file in which adjustment items necessary for image quality adjustment are made into a database for each television model is used. As a result, the trouble of changing the adjustment software for each television model can be omitted.
[0003]
[Problems to be solved by the invention]
In the above-described conventional television, it is necessary to write the data file in advance in an EEPROM provided in the television before adjusting the image quality, so that the user cannot easily access the EEPROM after the product is shipped. Therefore, it is usually necessary to attach a dedicated connector to a board inside the television with the rear cabinet removed, and write a data file through the connector. The image quality adjustment is usually performed on a large number of televisions on a line in a factory, and it is very complicated to attach a connector to a large number of televisions.
The present invention has been made in view of the above problems, and provides a television capable of registering setting data before television adjustment without connecting / disconnecting a connector and a television setting data registration method. Aim.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 changes the setting data stored in the EEPROM according to the contents of the screen setting adjustment performed at the factory, so that each model specified by the setting data is changed. In a television for adjusting an initial screen setting, a setting value for driving an internal device of the television is acquired with reference to the setting data stored in the EEPROM, and the internal device is controlled using the setting value. A CPU and an RF signal including a plurality of carrier frequencies broadcasted in a factory, the RF signal including setting data corresponding to a different model for each of the carrier frequencies being superimposed during the vertical flyback period is received. Antenna and carrier frequency of RF signal received through the antenna And a carrier frequency on which setting data corresponding to a television model is superimposed. , A data slicer that converts an RF signal received by the tuner into an intermediate frequency signal and extracts setting data superimposed on the vertical retrace period in the intermediate frequency signal, and an extraction by the data slicer. Setting data writing means for writing the set data to the EEPROM, and OSD display control for displaying, on the screen of the television, an OSD indicating that the writing has been completed when the setting data has been normally written to the EEPROM. Means, adjustment screen display means for displaying an adjustment screen on a television screen while driving the internal device with the extracted setting data by the CPU, and the adjustment screen display means for displaying the adjustment screen. A screen setting changing means for receiving a change in the screen setting and changing the setting; and Change setting data generating means for generating setting data corresponding to the setting after the setting change is completed, and setting data updating for updating the setting data written in the EEPROM with the setting data generated by the change setting data generating means Means.
[0005]
In the invention according to claim 1 configured as described above, when the setting data stored in the EEPROM is changed, the initial screen setting is changed, and the setting data is changed when adjusting the screen setting at the factory. In order to reduce the complexity of writing the setting data before adjustment in the television for performing the initial screen adjustment, the following configuration is adopted. That is, an RF signal in which setting data corresponding to a different model for each carrier frequency is superimposed during a vertical baseline period is broadcast in a factory, setting data is decoded from this RF signal, and the setting data is written to EEPROM as setting data. did.
[0006]
Specifically, the RF signal is received by an antenna, a carrier frequency is selected by a tuner, a signal of the selected carrier frequency is converted into an intermediate frequency signal, and the setting data is extracted by a data slicer. The extracted setting data is written to the EEPROM by the setting data writing means. Therefore, setting data can be written to the EEPROM without directly attaching a connector or the like to the television. The OSD display control means makes the OSD display indicating that the writing is completed on the screen of the television when the setting data is normally written to the EEPROM. Therefore, the adjuster can easily recognize on the screen of the television whether the setting data has been normally written.
[0007]
The CPU can drive the internal device of the television with the set values by referring to the setting data, and the adjustment screen display means displays the adjustment screen with the settings. The screen setting change means can accept the change of the setting of the screen and change the setting while the adjustment screen is displayed, and the change setting data generation means completes the change of the screen setting by the screen setting change means. Setting data corresponding to the setting after the setting can be generated. Therefore, it is possible to change the screen setting while visually recognizing the adjustment screen, and it is possible to adjust the initial setting by changing the screen setting. When the adjustment of the initial setting is completed, the change setting data generating means generates setting data corresponding to the setting after the screen setting change is completed, and the setting data updating means sets the setting data written in the EEPROM with the setting data. To update. Therefore, after this update, the screen is displayed with the adjusted initial settings.
[0008]
With the above configuration, it is possible to register setting data without connecting a connector or the like, but in the present invention, since setting data for different models is superimposed on RF signals having different carrier frequencies. The setting data can be registered for any model at any place on the factory line. Therefore, regarding the registration of the setting data, it is not necessary to change the equipment of the factory line by changing the model, and the change of the model can be handled very easily.
[0009]
According to a second aspect of the present invention, there is provided a television which adjusts initial settings for each model defined by the setting data by changing setting data stored in a non-volatile memory in accordance with adjustment contents of various settings. , The RF signal on which the setting data is superimposed An RF signal including a carrier frequency signal corresponding to a plurality of channels, and setting data of different models being superimposed on signals of different carrier frequencies. Setting data extracting means for acquiring the extracted setting data, and setting data writing means for writing the extracted setting data to the non-volatile memory; and setting the setting data stored in the non-volatile memory. An internal device driving unit that reads out and drives each of the internal devices of the television with the settings described in the setting data is provided.
[0010]
In the invention according to claim 2 configured as described above, the setting data extracting unit acquires the RF signal on which the setting data is superimposed, extracts the superposed setting data, and extracts the setting data by the setting data writing unit. Write the setting data to the nonvolatile memory. The internal device driving means reads the setting data stored in the nonvolatile memory and drives each internal device of the television with the settings described in the setting data. Therefore, by changing the setting data stored in the non-volatile memory according to the adjustment contents of various settings, a connector or the like is connected in a television for adjusting the initial setting for each model specified by the setting data. The adjustment can be started by storing the setting data in the non-volatile memory without the need.
[0011]
There are various objects to be initialized in television, and in the invention according to claim 3 as a configuration example, the setting data includes at least a screen setting and an image color setting on a display device provided in the television. The data is any one or a combination of the destination setting, the voice setting, and the program information. That is, there are various items as adjustment items to be adjusted in the factory, and various initial settings can be made by writing setting data for performing these settings to the nonvolatile memory.
[0012]
As a specific example, a default value of the screen setting can be given by describing the screen setting data on the display device in the setting data. Specific examples of the screen setting include, for example, setting of a vertical size and a horizontal size of the screen, positions of screen corners, and the like. If the image color setting data on the display device is described in the setting data, a default value of the color to be displayed on the screen can be given. Specific examples of the image color setting include, for example, settings such as an adjustment value of a white balance, an adjustment value of each color temperature, and a black level.
[0013]
If setting data for each destination is described in the setting data, default values of different settings for each destination can be given. Specific examples of the destination-specific settings include, for example, channel preset data and the like. If the voice setting data is described in the setting data, a default value of the voice setting can be given. As a specific example of the audio setting, for example, an initial value of the volume and the like can be mentioned. If the program information data is described in the setting data, a program to be stored in the nonvolatile memory, parameters used in the program, and the like can be obtained. Here, each setting data is not always strictly classified as each setting described above. For example, the adjustment value of the white balance is not only an image color setting but also a destination-specific setting.
[0014]
The setting data extracting means only needs to be able to extract the setting data superimposed on the RF signal. As an example of the configuration, in the invention according to the fourth aspect, the setting data extracting means includes a vertical blanking period of the RF signal. To extract the setting data superimposed on the setting data. That is, various information can be superimposed on the vertical retrace period of the RF signal, and when the television of the present invention is used in an environment where the setting data is superimposed on the vertical retrace period and the RF signal is output. , The superimposed setting data can be extracted.
[0015]
Further, in the invention according to claim 5, the setting data extracting means extracts the setting data by a data slicer which samples a signal from the RF signal at a predetermined timing. That is, according to the data slicer, the signal superimposed on the RF signal can be easily extracted. Of course, here, the data may be sampled from the intermediate frequency signal after the RF signal is once converted into the intermediate frequency signal. Further, if the configuration is such that the setting data can be extracted by sampling synchronized with the vertical synchronization signal, a data slicer provided in a normal television can be suitably used for extracting the setting data according to the present invention.
[0016]
Further, the RF signal on which the setting data is superimposed can be provided in various modes. In the invention according to claim 6 as an example of the configuration, the setting data extracting means may be provided with one of an antenna and a wired RF terminal or The configuration is such that the RF signal is obtained through a combination. That is, according to the configuration in which the RF signal is received via the antenna, the setting data can be written without connecting a connector or the like to the television when adjusting the initial setting in a factory or the like.
[0017]
On the other hand, in a configuration in which an RF signal is obtained by a wired RF terminal, an RF signal cable needs to be connected to the wired RF terminal, but the RF signal output from the video deck is taken into the television according to the present invention, and the setting data is acquired. Can write. Therefore, after the television is shipped from the factory, the setting data can be written by connecting the VCR to the television at an ordinary household or the like and reproducing the video tape on which the RF signal on which the setting data is superimposed is recorded.
[0018]
Further, in the present invention RF signal is , A carrier frequency signal corresponding to a plurality of channels, and setting data of different models are superimposed on signals of different carrier frequencies. That is, if the carrier frequency is different, the superimposed setting data is different, and the setting data for a different model is superimposed on each carrier frequency. Therefore, when storing the setting data in the nonvolatile memory, the setting data to be obtained can be changed only by changing the carrier frequency of the RF signal received by the television. In a factory, setting data for a plurality of models can be acquired at any position, and there is no need to change equipment on the line with a change in the model.
[0019]
further, Claim 7 According to the present invention, the setting data extracting means can receive an RF signal while changing a tuning frequency by a predetermined operation input, and extract setting data of a different model by changing the tuning frequency. That is, it is possible to acquire different setting data for each model only by changing the channel for performing the receiving operation in the television tuner.
[0020]
Furthermore, as a preferred configuration example to make the present invention more convenient, Claim 8 In the invention according to the invention, when the setting data can be normally written to the nonvolatile memory by the setting data writing means, the OSD display control means displays an OSD on the screen of the television to indicate the completion of the writing. Is provided. That is, when the setting data is written normally, the effect is notified to the coordinator by OSD display, and the coordinator can easily recognize the completion of the writing of the setting data. Of course, if writing is not completed normally, an OSD display indicating writing failure may be performed.
[0021]
further, Claim 9 The invention according to the invention further comprises frequency scanning means for scanning the carrier frequency to be tuned by controlling the setting data extracting means, wherein data capable of specifying a model is written in advance in the nonvolatile memory, and the model data is stored in the setting data. The setting data writing means analyzes the setting data extracted as a result of the scanning by the frequency scanning means, and the model specified by the data indicating the model and the nonvolatile memory The configuration data is written to the nonvolatile memory when the model specified by the data written in the non-volatile memory matches.
[0022]
That is, if the data that can specify the model is previously written in the non-volatile memory and the setting data including the data that can specify the model is superimposed on the RF signal, the model of the television can be obtained by the channel auto search. Can automatically be detected. As a result, the coordinator can register the setting data without knowing any channel number corresponding to the model.
[0023]
As described above, the method of acquiring the setting data superimposed on the RF signal is not necessarily limited to a substantial device, and it can be easily understood that the method also functions as the method.
[0024]
For this reason, Claim 10 The present invention relates to a television which reads out the setting data stored in a nonvolatile memory and drives each of the internal devices with the settings described in the setting data. A setting data registration method for registering the setting data with respect to a television for adjusting an initial setting for each model defined by the setting data by changing the setting data stored in the setting data. And a setting data extracting step of obtaining the RF signal on which the data is superimposed and extracting the superposed setting data, and a setting data writing step of writing the extracted setting data to the nonvolatile memory. In other words, there is no difference that the present invention is not necessarily limited to a substantial device and is effective as a method. Of course, claim 2 Claim 9 It is also possible to configure a method corresponding to.
[0025]
【The invention's effect】
As described above, claim 1, claim 2, Claim 10 According to the present invention, it is possible to provide a television and a television setting data registration method capable of storing setting data in a nonvolatile memory and starting adjustment without connecting a connector or the like. . Further, the setting data to be obtained can be changed only by changing the carrier frequency of the received RF signal.
According to the third aspect of the present invention, the present invention can be applied to various initial settings.
[0026]
Further, according to the fourth aspect of the present invention, the setting data can be easily extracted in a configuration in which the setting data can be easily superimposed on the RF signal.
Further, according to the fifth aspect of the present invention, it is possible to easily extract a signal superimposed on an RF signal by using a data slicer provided in a normal television.
Further, according to the invention according to claim 6, in adjusting the initial setting by a factory or the like, setting data can be written without connecting a connector or the like to the television, and after the television is shipped from the factory. Setting data can be easily written by playing a video tape.
[0027]
further, Claim 7 According to the present invention, it is possible to acquire different setting data for each model only by changing the channel for performing the receiving operation in the television tuner.
further, Claim 8 According to the invention, the coordinator can easily recognize the completion of the writing of the setting data.
further, Claim 9 According to the invention, a channel corresponding to a television model can be automatically detected by a channel auto search.
[0028]
BEST MODE FOR CARRYING OUT THE INVENTION
Here, embodiments of the present invention will be described in the following order.
(1) Outline of the present invention:
(2) Configuration of television:
(3) Mode of RF signal:
(4) Setting data registration operation:
(5) Other embodiments:
[0029]
(1) Outline of the present invention:
FIG. 1 is a schematic diagram showing how a television according to the present invention is adjusted before shipment. The televisions 100 and 101 are transported on a line in a factory with a cabinet attached, and an adjustment worker in the factory displays an adjustment screen (not shown) on the televisions 100 and 101 with an adjustment screen displayed. Make adjustments using. In a factory, an RF signal is transmitted from an antenna, and each of the televisions 100 and 101 can receive the RF signal.
[0030]
The RF signal is transmitted at a plurality of carrier frequencies corresponding to a plurality of channel frequencies (ch1 to n), and each of the televisions 100 and 101 can receive the signal while tuning to a desired channel frequency by a tuner. . Setting data to be written into the EEPROM of the television is superimposed during the vertical blanking period of the RF signal. The setting data is superimposed with setting data corresponding to a different model for each carrier frequency, and the televisions 100 and 101 tune to an RF signal on which setting data corresponding to the model is superimposed by selecting a channel. This makes it possible to acquire setting data corresponding to the model.
[0031]
In the example shown in FIG. 1, the setting data for the television 100 is superimposed on the vertical retrace period of the channel a (a is any of the channel numbers 1 to n), and the channel b (b is the channel number 1 to n) In any one of the vertical flyback periods, setting data for the television 101 is superimposed. Accordingly, an adjustment worker in the factory operates the television 100 with a remote controller (not shown), selects appropriate channel a by selecting channel a, and operates the television 101 with the remote controller (not shown). , Channel b, appropriate setting data is written to the television 101.
[0032]
(2) Configuration of television:
Next, a configuration of a television for realizing the present invention will be described. FIG. 2 is a schematic block diagram showing a configuration of the televisions 100 and 101 according to the embodiment of the present invention. In the present embodiment, an antenna 11 is connected to the tuner 10 and the tuner 10 A tuning operation is performed in accordance with the frequency band, an RF signal of a desired carrier frequency is received via the antenna 11, a required signal is selected from the received signal, high-frequency amplified, and converted to an intermediate frequency signal. And output.
[0033]
The tuner 10 according to the present embodiment employs a so-called PLL system tuning mechanism. The tuner 10 directly controls the local oscillation frequency based on predetermined frequency data input from the microcomputer 40, which will be described later. Can be controlled. A tuning operation is performed by the tuner 10, and the output intermediate frequency signal is input to the chroma IC 20. The chroma IC 20 is generally configured as shown in FIG. 3, and performs various signal processing. In the figure, the intermediate frequency signal input to the chroma IC 20 is input to the signal system circuit 21 and subjected to feedback control according to the strength of the received video signal by an AGC circuit (not shown), and the intermediate frequency signal is amplified at an appropriate gain. You. After the intermediate frequency amplification is performed, video detection is performed, a predetermined color demodulation process is performed based on the detected output, and RGB signals are output.
[0034]
Further, the audio intermediate frequency signal is taken out as a second audio intermediate frequency signal in the process of the intermediate frequency amplification, and an AUDIO signal is output through FM detection. The RGB signals output from the signal system circuit 21 are output to an external cathode amplifier 31, and are appropriately amplified by the cathode amplifier 31 and supplied to the CRT 32. On the other hand, the AUDIO signal is similarly output to an external audio amplifier 33, amplified as appropriate by the audio amplifier 33, and supplied to a speaker 34.
[0035]
Further, the signal system circuit 21 separates the horizontal and vertical synchronization signals (SYNC) from the detection output and supplies the separated signals to the synchronization system circuit 22 in the chroma IC 20 and a microcomputer 40 described later. In this synchronization system circuit 22, oscillation outputs corresponding to the horizontal and vertical synchronization signals are input from an oscillation circuit provided in the chroma IC 20. Usually, the respective oscillation outputs and the horizontal and vertical signals from the signal system circuit 21 are input. The vertical synchronizing signal forms a PLL loop.
[0036]
The signal whose phase is locked with the corresponding oscillation output by the PLL loop is output to an external deflection circuit 35 as a horizontal / vertical drive signal, and the deflection circuit 35 drives the beam of the CRT 32 in the horizontal and vertical directions. The branch of the intermediate frequency signal is input to the A / D conversion circuit 23, and the input intermediate frequency signal is converted into digital data and can be output. The output digital data can be output to an IIC bus described later, and setting data superimposed on the intermediate frequency signal is obtained under the control of the microcomputer 40 described later.
[0037]
The microcomputer 40 controls the entire television set, such as selecting a tuner 10 and writing setting data. The microcomputer 40, the tuner 10, the chroma IC 20, and the EEPROM 60 are connected to a predetermined IIC bus, and can communicate with each other via the IIC bus. For example, regarding the tuning control of the tuner 10, when the remote controller 50 is operated to select a desired channel, a corresponding infrared remote control signal is transmitted from the remote controller 50. The microcomputer 40 receives the infrared remote control signal via an infrared light receiving unit (not shown), detects a channel to be selected, and sends corresponding frequency data to the tuner 10 via the IIC bus. Then, the tuner 10 tunes to the channel frequency based on the same frequency data.
[0038]
The microcomputer 40 is also responsible for registering setting data. That is, the microcomputer 40 can sample the digital data from the A / D conversion circuit 23 in synchronization with the cycle of SYNC input from the chroma IC 20. Then, the microcomputer 40 acquires setting data superimposed on the intermediate frequency signal from the sampled digital data. Therefore, the A / D conversion circuit 23 and the microcomputer 40 constitute a data slicer. The setting data can be written in the EEPROM 60, and the microcomputer 40 writes the obtained setting data in the EEPROM 60.
[0039]
Further, the microcomputer 40 sets the black level and the screen size in the chroma IC 20 according to the setting data written in the EEPROM 60, and drives the internal devices such as the deflection circuit 35 and the cathode amplifier 31 according to the setting. The video signal of the adjustment screen of the television 100 or 101 is superimposed on the RF signal. When the internal device is driven according to the setting data, the adjustment screen is displayed on the CRT 32 of the television 100 or 101. Will be displayed. Therefore, the adjustment worker at the factory can adjust the setting by using the measuring instrument (not shown) while the adjustment screen is displayed.
[0040]
That is, in the present embodiment, when a push operation is performed with a combination of buttons that are not normally operated by operating buttons (not shown) provided on the remote controller 50, a factory mode for adjusting the initial settings of the televisions 100 and 101 is set. Execute or terminate. When receiving the push-in operation by the remote controller 50, the microcomputer 40 executes a program stored in the EEPROM 60 in advance, and executes a factory mode for adjusting initial settings. In the factory mode, a channel selection instruction from the remote controller 50 is accepted as usual, the channel can be changed, and an adjustment screen is displayed on the CRT 32 based on the video signal transmitted by the selected RF signal.
[0041]
In this factory mode, the adjustment operator presses the adjustment knob provided on the television or the button on the remote control 50 while measuring the white balance and the color temperature of the adjustment screen using the measuring instrument. In this case, the display state, volume, and screen position of the adjustment screen are changed. The changed contents are sent to the microcomputer 40, and the microcomputer 40 sequentially converts the changed contents into the adjusted setting data. Then, when the above-mentioned pressing operation is performed again with the button of the remote controller 50 in the factory mode, the microcomputer 40 updates the EEPROM 60 with the adjusted setting data. Therefore, thereafter, the televisions 100 and 101 are driven by the adjusted setting data.
[0042]
As described above, in the present invention, the setting data superimposed on the RF signal can be written in the EEPROM 60 of the televisions 100 and 101. Therefore, the setting data is written in the EEPROM 60 before the televisions 100 and 101 are assembled. There is no need to keep it. Further, since it is not necessary to connect a connector or the like when writing the setting data to the EEPROM 60, the operation of connecting the connector or the like can be omitted. Further, as shown in FIG. 1, the televisions 100 and 101 can adjust the initial settings while transporting the televisions 100 and 101 on a line in a state where the cabinets are assembled. Furthermore, if the RF signal can be received, the setting data can be registered at any position in the factory, so that the type of television transported on the line can be changed very easily.
[0043]
(3) Mode of RF signal:
As described above, in the present invention, the setting data for each model needs to be superimposed on the RF signal, and the mode of the RF signal will be described in detail below. FIG. 4 is a diagram showing a schematic diagram of the RF signal transmitted in the factory for each channel. In the figure, the envelope of the RF signal, that is, the carrier signal is omitted, and the RF signal has a period in which the video signal is superimposed and a vertical retrace period in which various data such as a synchronization pulse and teletext can be superimposed. It is composed of
[0044]
In the present embodiment, data is superimposed in a period corresponding to 20H during the vertical blanking period. In the example shown in FIG. 4, in the RF signal of channel number 1 (ch1), the setting data for the television model A is superimposed on 20H during the vertical retrace interval, and the RF signal of channel number n (chn) is superimposed. The setting data for the television model N is superimposed on 20H during the vertical flyback period.
[0045]
As described above, various data can be superimposed on the vertical blanking period, and many televisions currently shipped have a data slicer for sampling the data. Therefore, in the present invention, by superimposing the setting data during the vertical blanking period, it is possible to obtain the setting data by using a data slicer originally provided in many televisions.
[0046]
(4) Setting data registration operation:
Next, a flow of an operation of registering the setting data in the EEPROM 60 of the televisions 100 and 101 before adjusting the factory in the present embodiment will be described. FIG. 5 is a flowchart showing a process related to writing of setting data among processes executed by the microcomputer 40 at the time of work in a factory. The adjustment worker stands in front of the television on the line where the television 100 or the television 101 is being conveyed in the factory, and presses the remote controller 50 with a combination of the above-mentioned buttons that are not normally operated.
[0047]
The microcomputer 40 receives a remote control signal based on the operation of the remote controller 50 (step S100), and determines whether or not the remote control signal is a signal based on the combination of the buttons, that is, the operation content instructs the start of the factory mode. It is determined whether or not this is the case (step S110). If it is determined in step S110 that the remote control operation has instructed the start of the factory mode, a channel selection operation by the remote control 50 is accepted in step S120.
[0048]
The adjustment operator further operates the remote controller 50 to select a channel for tuning on the television. In the example shown in FIG. 1, the adjustment operator selects a channel a when adjusting the television 100 and selects a channel b when adjusting the television 101. The microcomputer 40 receives a channel selection operation based on a remote control signal based on the operation of the remote controller 50, and performs tuning by controlling the local oscillation frequency of the tuner 10 (step S130). As a result, the tuner 10 tunes to the RF signal of the channel frequency selected by the adjustment operator.
[0049]
The microcomputer 40 further samples the data output from the A / D conversion circuit 23 while synchronizing with the cycle of SYNC output from the synchronization circuit 22 of the chroma IC, and superimposes the data on the vertical blanking period 20H. The setting data is sliced (step S140). Then, the EEPROM 60 is accessed via the IIC bus, and the sliced setting data is written into the EEPROM 60 (step S150). As a result, the microcomputer 40 can access the EEPROM 60 and refer to the setting data to grasp the settings of each internal device. When the internal devices are driven by the settings, the AUDIO signal and the RGB signals are output from the chroma IC. The signal is output, and the adjustment screen is displayed on the CRT 32. Therefore, thereafter, the adjustment operator can adjust the initial settings using the remote controller 50 and the adjustment knob.
[0050]
(5) Other embodiments:
The present invention can be realized in various forms other than the above-described embodiment. In the present invention, if an RF signal on which the setting data is superimposed can be received, the setting data can be extracted from the RF signal and written into the EEPROM, and the setting data can be stored in the factory from the RF signal as described above. The acquired configuration is convenient when adjusting the initial settings in the factory mode, but is not limited to this mode. For example, setting data can be extracted by acquiring an RF signal from an RF signal terminal.
[0051]
In this case, if an RF signal terminal is provided in the television, an RF signal on which the setting data is superimposed can be obtained through an RF signal cable connected to the RF signal terminal. If the RF signal is configured to be input to the tuner, the present invention can be realized by other configurations similar to those of the above-described embodiment. In such a mode, the RF signal output of the video deck is input to the RF signal terminal of the television, and the video deck on which the RF signal on which the setting data is superimposed is recorded is reproduced by the video deck to set the EEPROM. Since the data can be written, the setting data can be rewritten in an ordinary household after the television is shipped. Such a configuration is particularly convenient for service personnel working in ordinary households.
[0052]
Further, it is convenient if the adjustment worker or the like is explicitly shown that the setting data has been written to the EEPROM 60 in the above configuration. Therefore, a configuration in which the processing shown in FIG. 6 is added to the flow shown in FIG. 5 can be adopted. This configuration can be realized by the same hardware configuration as the televisions 100 and 101. The microcomputer 40 executes the additional processing shown in FIG. 6, and the microcomputer 40 sends the chroma IC to the chroma IC for OSD display. This is realized by configuring to output data.
[0053]
The process shown in FIG. 6 is a process executed after step S150 shown in FIG. 5 (represented in FIG. 6), and after the setting data writing process to the EEPROM 60 in the step S150, the writing is normally successful. It is determined whether or not (step S160). If it is determined in step S160 that the writing to the EEPROM 60 has succeeded normally, the microcomputer 40 outputs OSD display data for displaying "OK" and OSD on the CRT 32 (step S170). As a result, the chroma IC 20 outputs the above-described RGB signal and the like for displaying the “OK”, and displays “OK” on the CRT 32. Therefore, the adjustment worker can immediately and easily grasp that the writing of the setting data has succeeded normally.
[0054]
If it is not determined in step S160 that the writing to the EEPROM 60 has succeeded normally, the microcomputer 40 outputs OSD display data for displaying "NG" and OSD display on the CRT 32 (step S180). As a result, the chroma IC 20 outputs the above-described RGB signals and the like for displaying the “NG”, and causes the CRT 32 to display “NG”. Therefore, the adjustment worker can immediately and easily grasp that the writing of the setting data has failed.
[0055]
Further, in the present invention, since setting data for each model is superimposed on each carrier frequency of the RF signal, it is necessary to select an appropriate channel for each model, and it is convenient if this tuning operation is automated. is there. FIG. 7 is a schematic diagram showing an operation in such a configuration, and FIG. 8 is a flowchart in this configuration. In this embodiment, the setting data superimposed on the RF signal also includes model data (shown as models A and N in FIG. 7) for specifying which model the setting data is for. Have been.
[0056]
In addition, data indicating the type of the television 102 is written in an EEPROM in the television 102 (the television 102 is a type N in FIG. 7). The microcomputer 40 has a configuration capable of performing a so-called channel search, and scans by sequentially switching the carrier frequency in the frequency band of the RF signal by executing the channel search to search for a tunable frequency. Further, the microcomputer 40 once extracts the setting data from the RF signal at the tuned carrier frequency, compares the model data described in the setting data with the data indicating the model written in the EEPROM 60, and sets the channel until the two match. Perform a search. Therefore, it is possible to automatically tune to the RF signal on which the setting data for the model N of the television 102 is superimposed by the channel search.
[0057]
As the flow executed by the microcomputer 40, steps S200 to S240 shown in FIG. 8 are performed in place of the processing corresponding to steps S120 to S140 in the flow in FIG. That is, when it is determined in step S110 that the factory mode has been executed, auto tuning is started in step S200, and the microcomputer 40 tunes the tuner 10 at the carrier frequency of channel n (n is a natural number). (Step S210). Here, the initial value of n is 1.
[0058]
When tuning to the channel n is performed, the microcomputer 40 slices the data output from the A / D conversion circuit 23 and extracts setting data (step S220). In step S230, the EEPROM 60 is referred to. Then, the model data described in the setting data is compared with the data indicating the model written in the EEPROM 60 (step S240), and the channel numbers are sequentially changed until it is determined in step S240 that both data match. Step S210 and the subsequent steps are repeated. If it is determined in step S240 that the two data match, the setting data is written to the EEPROM 60 in step S150. As described above, in the present embodiment, after the factory mode is started by the operation of the adjustment operator, the operator's own channel selection operation is not required at all. In this embodiment, it is more convenient to add a configuration for executing the OSD display.
[0059]
As described above, in the present invention, the setting data for each model is superimposed on the RF signal of a different channel in the factory, the RF signal is acquired in the television, and the superimposed setting data is sliced. Then, the setting data is written to the EEPROM. Therefore, the setting data can be registered before the television adjustment without connecting / disconnecting the connector.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing how a television is adjusted before shipment.
FIG. 2 is a block diagram showing a schematic configuration inside a television.
FIG. 3 is a block diagram illustrating a configuration of a chroma IC.
FIG. 4 is a diagram showing a schematic diagram of an RF signal for each channel.
FIG. 5 is a flowchart illustrating a process related to writing of setting data.
FIG. 6 is a flowchart of an additional process according to another embodiment.
FIG. 7 is a schematic diagram showing an operation in another embodiment.
FIG. 8 is a flowchart illustrating a process related to writing setting data according to another embodiment.
[Explanation of symbols]
100, 101 ... Television
11 ... antenna
12 ... Coaxial cable
20 ... Chroma IC
21 ... Signal system circuit
22: Synchronous circuit
23 A / D conversion circuit
31 ... Cathode amplifier
32 ... CRT
33 ... Audio amplifier
34 ... Speaker
35 ... deflection circuit
40 ... microcomputer
50 ... Remote control

Claims (10)

By changing the setting data stored in the EEPROM according to the adjustment of the screen setting performed at the factory, the television adjusts the initial screen setting for each model defined by the setting data.
A CPU that obtains a setting value for driving an internal device of the television with reference to the setting data stored in the EEPROM, and controls the internal device using the setting value;
An antenna that receives an RF signal that includes a plurality of carrier frequencies broadcast in a factory, and in which the setting data corresponding to a different model is superimposed during the vertical retrace period for each carrier frequency,
A tuner that selects a carrier frequency on which the setting data corresponding to the type of the television is superposed, which is a carrier frequency of the RF signal received via the antenna;
A data slicer for converting an RF signal received by the tuner into an intermediate frequency signal and extracting setting data superimposed on the vertical retrace period in the intermediate frequency signal;
Setting data writing means for writing the setting data extracted by the data slicer into the EEPROM;
OSD display control means for displaying, on the television screen, an indication of completion of writing when the setting data is normally written to the EEPROM,
Adjustment screen display means for displaying an adjustment screen on a television screen while driving the internal device with the extracted setting data by the CPU;
Screen setting change means for receiving a change in the setting of the screen while displaying the adjustment screen and changing the setting,
Change setting data generating means for generating setting data corresponding to the setting after the screen setting change by the screen setting changing means is completed,
A setting data updating unit for updating the setting data written in the EEPROM with the setting data generated by the change setting data generating unit. By changing the setting data stored in the non-volatile memory according to the adjustment content of various settings, in a television that adjusts the initial setting for each model defined by the setting data,
An RF signal on which the setting data is superimposed , including a signal of a carrier frequency corresponding to a plurality of channels, and setting data of a different model obtains an RF signal superimposed on a signal of a different carrier frequency and obtains the RF signal. Setting data extracting means for extracting the setting data,
Setting data writing means for writing the extracted setting data to the nonvolatile memory;
A television comprising: an internal device driving unit that reads out the setting data stored in the nonvolatile memory and drives each internal device of the television with the settings described in the setting data. 3. The apparatus according to claim 2, wherein the setting data is at least one of or a combination of a screen setting, an image color setting, a destination setting, a sound setting, and program information on a display device provided in the television. Television. 4. The television according to claim 2, wherein the setting data extracting means extracts the setting data superimposed on a vertical blanking period of the RF signal. 5. The television according to claim 2, wherein the setting data extracting unit extracts the setting data by a data slicer that samples a signal from the RF signal at a predetermined timing. 6. The television according to any one of claims 2 to 5, wherein the setting data extracting unit acquires the RF signal via one or a combination of an antenna and a wired RF terminal. 8. The method according to claim 7, wherein the setting data extracting means is capable of receiving an RF signal while changing a tuning frequency by a predetermined operation input, and extracting setting data of a different model by changing the tuning frequency. The described television. OSD display control means for displaying, on the television screen, an OSD display indicating completion of writing when the setting data can be normally written to the nonvolatile memory by the setting data writing means. The television according to any one of claims 2 to 7 , characterized in that: Frequency setting means for controlling the setting data extracting means to scan a carrier frequency to be tuned; data for specifying a model is previously written in the nonvolatile memory; and the setting data includes data indicating the model. The setting data writing unit analyzes the setting data extracted as a result of performing the scan by the frequency scanning unit, and determines the model specified from the data indicating the model and the data written in the nonvolatile memory. 9. The television according to claim 2, wherein the setting data is written to the non-volatile memory when a model specified by the following is matched. A television that reads the setting data stored in the non-volatile memory and drives each internal device with the settings described in the setting data, and the setting stored in the non-volatile memory in accordance with the adjustment content of various settings By changing the data, in a television setting data registration method of registering the setting data for a television that adjusts an initial setting for each model defined by the setting data,
An RF signal on which the setting data is superimposed , including a signal of a carrier frequency corresponding to a plurality of channels, and setting data of a different model obtains an RF signal superimposed on a signal of a different carrier frequency and obtains the RF signal. A setting data extracting step of extracting the setting data
A setting data writing step of writing the extracted setting data to the nonvolatile memory.

Images