JP3074188U - OSD display device and television receiver - Google Patents

Abstract

(57) [Summary] (with correction) [Problem] When selecting a language for OSD display by auto presetting, it is time-consuming and cannot be said to be an efficient method. In such a case, an increase in the soft capacity is inevitable, which causes an increase in cost. SOLUTION: When a language selection mode is set, a microcomputer acquires a broadcast system adopted by a television signal, and stores a table indicating a correspondence between a broadcast system and a language stored in a ROM. In comparison, a language corresponding to the broadcast system adopted by the received television signal is extracted from the table and the OSD display based on the language is executed by the OSD circuit 20a. Can be reduced.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an OSD display device and a television receiver, and more particularly, to an OSD display device and a television receiver that perform OSD display using a predetermined language.

[0002]

[Prior art]

 Conventionally, as an OSD display device mounted on a television receiver, an OSD display device disclosed in JP-A-11-331723 has been known. In the OSD display device, a ROM for storing a plurality of channel plan data and character display data in an OSD language corresponding to each channel plan data is provided in a control unit. Appropriate channel plan data is selected according to the frequency data that can be received at the time of presetting, and OSD display based on the corresponding character display data is executed. As another OSD display device, there is a known OSD display device which allows a user to set a language for OSD display on a menu screen at the time of initial setting, and selects the set language to perform OSD display. I have.

[0003]

[Problems to be solved by the invention]

 The conventional OSD display device described above has the following problems. In the former case, it is not possible to select a suitable OSD display language unless auto-preset is performed to obtain receivable frequency data. I couldn't say. On the other hand, in the latter case, since a language selection operation on the menu screen and an initial writing operation of the language are required, an increase in software capacity is unavoidable, resulting in high costs. The present invention has been made in view of the above problems, and has as its object to provide an OSD display device and a television receiver that can efficiently perform OSD display and reduce costs.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the invention according to claim 1 employs OSD display means for performing OSD display using a predetermined language, broadcast signal receiving means for receiving a broadcast signal, and the received broadcast signal. A broadcast system detecting means for detecting a broadcast system to be executed, and an OSD display control means for selecting a language corresponding to the detected broadcast system and causing the OSD display means to perform an OSD display using the language. It is as follows. In the invention according to claim 1 configured as described above, when the broadcast signal receiving means receives a broadcast signal, the broadcast system detecting means detects a broadcast system adopted by the received broadcast signal.

[0005] Then, the OSD display control means selects a language corresponding to the broadcasting system detected by the broadcast system detection means, and causes the OSD display means to perform an OSD display using this language. The OSD display means only needs to output an OSD display using a predetermined language, and may simply output a control signal for performing the OSD display. A display may be provided.

[0006] The broadcast signal receiving means only needs to receive a broadcast signal, and may be a means for receiving terrestrial broadcast via an antenna or a means for receiving CATV via a communication cable. And so on. That is, it is only necessary to receive a broadcast signal employing a predetermined broadcast system, and the present invention does not limit the form of the received broadcast signal. The broadcast system detecting means only needs to detect the broadcast system adopted by the broadcast signal received by the broadcast signal receiving means, and detects and specifies the broadcast system adopted by the broadcast signal. Alternatively, the system may detect the outline of the broadcasting system and determine that the system is any of a plurality of broadcasting systems. Note that the broadcasting system referred to here is not limited to existing broadcasting systems such as NTSC, PAL and SECAM, so the same applies to systems that detect broadcasting systems, including any broadcasting systems that will be adopted in the future. can do.

The OSD display control means selects a language corresponding to the broadcast system detected by the broadcast system detection means, and causes the OSD display means to perform an OSD display using this language. As an example of the configuration, the invention according to claim 2 is the OSD display device according to claim 1, wherein the OSD display control means has a table indicating a correspondence between the broadcast system and a language, Based on the broadcast system detected by the broadcast system detection means, a language used for the OSD display is selected from the languages included in the table. In the invention according to claim 2 configured as described above, the OSD display control unit stores a table indicating a correspondence relationship between the broadcast system and the language based on the broadcast system detected by the broadcast system detection unit. The language used for the OSD display is selected from the included languages.

As described above, the OSD display device relates to a broadcast system corresponding to a broadcast signal expected to be received by the broadcast signal receiving means, and provides a corresponding language in advance, so that the broadcast system and the language can be distinguished from each other. Improve the processing speed when associating. The broadcast system and the language may be associated one-to-one, or a plurality of languages may be associated with one broadcast system. As an example of the configuration in the latter case, the invention according to claim 3 is directed to the OSD display device according to any one of claim 1 or claim 2, wherein the OSD display control means corresponds to the broadcast system. A plurality of languages to be selected, and the OSD display means performs an OSD display using the plurality of languages selected above.

In the invention according to claim 3 configured as described above, when the OSD display control means selects a plurality of languages corresponding to the broadcast system, the OSD display means sets the plurality of selected languages. Is used to display an OSD. Therefore, the OSD display is not limited to one language, and the OSD display can be performed using a plurality of languages that the user can recognize. Becomes

[0010] Further, the OSD display control means can select a language desired by the user as the OSD language by receiving a predetermined operation by the user. According to a fourth aspect of the present invention, in the OSD display device according to any one of the first and second aspects, the broadcasting system has a plurality of corresponding languages, and the OSD display control unit includes the broadcasting system. A predetermined operation for selecting any of the languages corresponding to the above is received, and the language used for the OSD display is selected based on the received operation. In the device according to claim 4 configured as described above, the OSD display control means receives a predetermined operation performed by a user to select one of languages corresponding to the broadcast system. Then, based on the received operation, the language used for the OSD display is specified and selected. That is, the OSD display control means selects only a predetermined language desired by the user as a language used for OSD display.

Further, as another configuration example, the invention according to claim 5 is the OSD display device according to claim 1 or claim 2, wherein the broadcasting system has a plurality of corresponding languages. The OSD display control means receives an operation for selecting a region, and selects a language used in the region selected by the operation and corresponding to the broadcasting system. In the device according to claim 5 configured as described above, the OSD display control means receives a user operation for selecting a region. Then, the language used in the area selected by this operation and corresponding to the above-mentioned broadcasting system is selected as the language used for the OSD display. That is, the OSD display control means selects the OSD display language as the language used for OSD display while taking into account the official language and the like according to the region where the OSD display device is used.

Incidentally, the OSD display device according to the present invention can be applied to a specific device. As an example of such a configuration, the invention according to claim 6 is based on a tuner for receiving a television signal, a chroma IC for generating an OSD display signal based on a predetermined language, and a television IC or an OSD display signal. A CRT monitor that outputs a predetermined image and a broadcasting system adopted by the television signal received by the tuner are detected, and the detected broadcasting system is compared with a table indicating the correspondence between the broadcasting system and the language. A microcomputer that extracts a language corresponding to the broadcast system, and causes the chroma IC to generate the OSD display signal based on the language, and an IIC bus interposed between the tuner, the chroma IC, and the microcomputer so that they can communicate with each other. Is provided. That is, the OSD display device is also realized as a television receiver having a specific configuration.

[0013]

[Effect of the invention]

 As described above, the present invention can provide an OSD display device capable of efficiently displaying an OSD and reducing cost. Further, according to the invention of claim 2, the processing efficiency of the OSD display control means can be improved. Further, according to the invention of claim 3, it is possible to perform OSD display based on a specific language without any operation by the user.

Further, according to the present invention, by selecting only a predetermined language desired by the user as a language used for OSD display, efficient language selection can be realized. Furthermore, according to the invention of claim 5, by selecting an OSD display device as a language to be used for OSD display while considering an official language or the like in accordance with a region where the OSD display device is used, efficient language selection can be achieved. Can be realized. Further, according to the invention of claim 6, it is possible to provide a television receiver capable of efficiently performing OSD display and reducing costs.

[0015]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a main configuration of a television receiver according to an embodiment of the present invention. In FIG. 1, a tuner 10 employs a so-called PLL system, and receives a television signal by locking a reception frequency to a desired frequency corresponding to a television broadcast band via an antenna 10a. Then, only a required signal is selected from the received television signal, high-frequency amplified, converted to an intermediate frequency signal, and output.

When the intermediate frequency signal output from the tuner 10 is supplied to the chroma IC 20, the chroma IC 20 performs various kinds of signal processing on the intermediate frequency signal based on control data from the microcomputer 30, thereby obtaining a video signal. And restore the sync and audio signals. The restored video signal is output to the cathode side of the cathode ray tube monitor 40 via an amplifier circuit (not shown), and irradiates an electron beam relating to a corresponding color component from each electron gun toward the phosphor screen. The restored synchronizing signal is subjected to predetermined signal processing, then output as a deflection driving signal to the anode side of the cathode ray tube monitor 40 via a high-voltage circuit (not shown) or the like, and the electron emitted from the cathode side is irradiated. Deflected the beam. Further, the restored audio signal is output to the speaker 50 after being subjected to detection and amplification processing. Further, the microcomputer 30 connected to the tuner 10 and the chroma IC 20 via the standardized IIC bus 60 for serial data communication issues an instruction to the tuner 10 about a reception frequency and an instruction regarding signal processing in the chroma IC 20. The output controls the entire television.

Meanwhile, the chroma IC 20 is provided with an OSD circuit 20 a, which generates an OSD display signal in accordance with a control signal from the microcomputer 30 and superimposes the OSD display signal on a video signal output to the cathode side of the CRT monitor 40. Is done. For this reason, an image on which the OSD display such as characters and symbols is superimposed as necessary is displayed on the CRT monitor 40 as the OSD display means according to the present invention. The OSD display referred to here includes not only numbers such as time and channel number, but also character information such as sound volume adjustment and display adjustment of a display screen. In the television receiver according to the present embodiment, Such character information is displayed by selecting one of English, Japanese, Portuguese, German, French, Chinese and Russian languages.

The character data corresponding to each language is stored in a ROM 30a mounted on the microcomputer 30. The microcomputer 30 reads necessary character data from the ROM 30a, outputs the necessary character data to the OSD circuit 20a of the chroma IC 20, and selects the character data. The OSD display signal corresponding to the specified language is generated. In the present embodiment, the character data corresponding to each language is stored in the ROM 30a mounted on the microcomputer 30, but from the viewpoint that the microcomputer 30 may be able to read out the data as needed, this configuration is used. However, for example, it may be stored in an EEPROM connected to the microcomputer 30 via the IIC bus 60.

FIG. 2 is a flowchart showing a control procedure in the microcomputer 30 when selecting a language for OSD display. When the language selection mode for selecting a language for OSD display is set, the microcomputer 30 shifts from the normal mode to the language selection mode, and sends a control signal for receiving a predetermined television broadcast band to the present invention. It is output to the tuner 10 as the broadcast signal receiving means (steps S100 to S120). Then, the tuner 10 receives the television signal while locking the reception frequency to the predetermined reception frequency.

The microcomputer 30 as the broadcast system detection means and the OSD display control means according to the present invention acquires the broadcast system adopted by the television signal received by the tuner 10 (step S130). A table indicating the correspondence between the broadcasting system and the language as shown in FIG. 3 is read from the ROM 30a and compared. Then, the language corresponding to the broadcast system adopted by the received television signal is extracted from the table, the language selection mode is ended, and the mode is returned to the normal mode (steps S140, S150). Therefore, for example, when the broadcasting system is NTSC-M, English and Japanese are associated with each other, so that the OSD is displayed in English and Japanese as shown in FIG.

In the present embodiment, all languages expected to be used by the user are used for OSD display. However, such a form is merely an example, and is limited to only the language desired by the user. It is also possible to adopt a configuration that allows it. That is, as shown in FIG. 5, steps S200 to S220 can be inserted between step S140 and step S150 in FIG. Since a plurality of languages are associated with the broadcasting system acquired in step S130, the microcomputer 30 allows the user to select one of the languages for the OSD display circuit 20a of the chroma IC 20. Then, a control signal for executing the OSD display is output (step S200).

For example, when the broadcasting system is NTSC-M, English and Japanese are associated with each other. Therefore, as shown in FIG. The user causes the chroma IC 20 to execute an OSD display for selection by the user. Here, when the user performs an operation for selecting a desired language based on the OSD display displayed on the screen of the CRT monitor 40 by using an operation button provided on a remote control transmitter or an operation panel (not shown). The microcomputer 30 detects this operation and adopts the language selected by the user as the OSD display language (steps S210 and S220).

For example, when the user performs an operation for selecting Japanese from English and Japanese, the microcomputer 30 detects the operation by the user and selects Japanese. Accordingly, for the subsequent OSD display, a control signal is output to the chroma IC 20 based on the character data corresponding to Japanese. Further, when shifting to the language selection mode, it is not always necessary for the user to select a desired language. For example, some regions, such as Asia, North America, South America, and Europe, and, in some cases, countries, have some restrictions on the broadcasting systems employed.

Therefore, when the user shifts to the language selection mode, if the user selects a region or a country name including the current position, the language used for the OSD display can be specified without performing a specific language selection. Can be selected. That is, as shown in FIG. 7, steps S300 to S320 can be inserted instead of steps S200 to S220 in FIG. Since a plurality of languages are associated with the broadcast system acquired in step S130, the microcomputer 30 causes the OSD display circuit 20a of the chroma IC 20 to perform OSD display for selecting a region. A control signal to the effect is output (step S300).

For example, as shown in FIG. 8, the CPU 20 causes the chroma IC 20 to execute an OSD display for selecting any one of Asia, North America, South America, and Europe as a current location. Here, when the user performs an operation for selecting a corresponding area based on the OSD display displayed on the screen of the cathode ray tube monitor 40, the microcomputer 30 detects this operation and selects the region by the user. One of the regions is acquired (step S310). For example, when the user performs an operation for selecting Asia, the microcomputer 30 detects the operation by the user and acquires Asia as a region including the current location.

Although a plurality of languages are associated with the broadcasting system extracted in step S140, the microcomputer 30 changes the language used as the official language in the region selected by the user to OSD. (Step S320). For example, if the broadcast system adopted by the received television signal is NTSC-M and the region selected by the user is Asia, Japanese is selected as the OSD display language.

Next, the operation of the television receiver according to the present embodiment when selecting a language for OSD display will be described. When the language selection mode is set, the microcomputer 30 shifts from the normal mode to the language selection mode, and outputs a control signal to the tuner 10 to receive a predetermined television broadcast band. Then, the tuner 10 locks the reception frequency to the predetermined reception frequency and receives the television signal. At this time, the microcomputer 30 acquires the broadcasting system adopted by the television signal via the IIC bus 60 and reads a table indicating the correspondence between the broadcasting system and the language from the ROM 30a. Then, the language corresponding to the broadcast system adopted by the received television signal is extracted from the table, the language selection mode is ended, and the mode returns to the normal mode.

Therefore, when the user performs an operation related to the operation involving the OSD display, the character data corresponding to the extracted language is read from the ROM 30a, and the control for executing the OSD display based on the read character data is performed. The signal is output to the OSD circuit 20a. Therefore, the OSD circuit 20a generates an OSD display signal based on the control signal output from the microcomputer 30, superimposes the OSD display signal on the video signal, and outputs the signal to the CRT monitor 40.

As described above, when the language selection mode is set, the microcomputer 30 acquires the broadcast system adopted by the television signal and sets the correspondence between the broadcast system and the language stored in the ROM 30a. Compared with the table indicating the relationship, the language corresponding to the broadcast system adopted by the received television signal is extracted from the table and the OSD display based on the language is executed by the OSD circuit 20a. The display can be performed, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a main configuration of a television receiver according to an embodiment.

FIG. 2 is a flowchart illustrating a procedure of a language selection process executed by a microcomputer.

FIG. 3 is a ROM showing a correspondence between a broadcasting system and a language.
Is a table stored in the table.

FIG. 4 is a screen display example showing a specific OSD display.

FIG. 5 is a flowchart illustrating a procedure of a language selection process according to a modification.

FIG. 6 shows an OSD for allowing a user to select a desired language.
It is a screen display example at the time of displaying.

FIG. 7 is a flowchart illustrating a procedure of a language selection process according to another modification.

FIG. 8 is a screen display example when an OSD display for allowing a user to select a region is performed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Tuner 10a ... Antenna 20 ... Chroma IC 20a ... OSD circuit 30 ... Microcomputer 30a ... ROM 40 ... CRT monitor 50 ... Speaker 60 ... IIC bus

Claims (6)

[Utility model registration claims] 1. An OSD display using a predetermined language
SD display means, broadcast signal receiving means for receiving a broadcast signal, broadcast system detection means for detecting a broadcast system adopted by the received broadcast signal, and selecting a language corresponding to the detected broadcast system,
An OSD display device comprising: OSD display control means for causing the OSD display means to perform OSD display using the language. 2. The OSD display device according to claim 1, wherein the OSD display control means has a table indicating a correspondence between the broadcast system and the language, and the OSD display control means detects the correspondence between the broadcast system and the language. An OSD display device for selecting a language used for the OSD display from languages included in the table based on a broadcasting system. 3. The OSD display device according to claim 1, wherein said OSD display control means selects a plurality of languages corresponding to said broadcast system, and said OSD display means comprises: An OSD display device for performing an OSD display using the plurality of selected languages. 4. The OSD display device according to claim 1, wherein the broadcast system has a plurality of corresponding languages, and the OSD display control means corresponds to the broadcast system. An OSD display device which receives a predetermined operation for selecting one of languages and selects a language used for the OSD display based on the received operation. 5. The OSD display device according to claim 1, wherein the broadcast system has a plurality of corresponding languages, and the OSD display control means is configured to select a region. An OSD display device that receives an operation and selects a language used in an area selected by the operation and corresponding to the broadcast system. 6. A tuner for receiving a television signal, and a chroma I for generating an OSD display signal based on a predetermined language.
C, a CRT monitor for outputting a predetermined image based on the television signal or the OSD display signal, and a broadcast system adopted by the television signal received by the tuner is detected. A microcomputer that extracts a language corresponding to the detected broadcasting system by comparing the table with a table indicating the correspondence between the two, and causes the chroma IC to generate the OSD display signal based on the language; the tuner, the chroma IC, and the microcomputer And a IIC bus interposed between the television receivers so as to be able to communicate with each other.