KR101301040B1 - Code auto search method - Google Patents

Abstract

The present invention relates to a code automatic search method capable of automatically controlling a code setting by automatically detecting a blend code of devices to be controlled in an IR Blaster-compatible device. According to an embodiment of the present invention, in an IR blaster method using a unidirectional control method for controlling a control target device in a controller device, when a remote controller code is input to the controller, a comparable data format is extracted from the input remote controller code, and the extracted data format. Is compared with the data value stored in the database and automatically sets the blend code corresponding to the controlled device. With this control, the present invention eliminates the need for the user to select the type and the code of the controlled device by referring to the GUI or the manual, and prevents an error in the control of the controlled device due to the wrong blend code selection. You get an effect.

Blend code, remote control code, auto search

Description

Code auto search method

1 is a view illustrating a control configuration required to automatically set a blend code between a controller and a control target device according to an embodiment of the present invention.

2 shows an exemplary view of a database according to an embodiment of the present invention,

3 is a flowchart illustrating an operation for automatically setting a blend code between a controller and a control target device according to an embodiment of the present invention.

4 illustrates an example of extracting comparison data from a remote control code according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: TV 20: set top box

30: DVD recorder 31: Micom

32: Eye Transmitter / Receiver 33: Database

40: remote control

The present invention relates to a code automatic search method, and more particularly, to a code automatic search method capable of automatically detecting a code set of a control target device in an IR Blaster compatible device to automatically control code setting. will be.

Intra-Red Blaster relates to a function of controlling a target device by transmitting a desired remote control code to a target device to be controlled by using the Ill Blaster in a specific device.

For example, a set-top box connected to an external input to a DVD recorder may be configured to be controlled through an eye blaster. In this case, the DVD recorder controls the broadcast channel signal to be received by the set-top box, and the broadcast channel signal received from the set-tub box is input to the DVD recorder to record the broadcast channel signal desired by the user.

On the other hand, when controlling the set-top box through the DVD recorder using the IAL blaster as described above, some code setting process including the target device type, the corresponding code to be controlled between the DVD recorder and the set-top box is required.

Conventionally, the user sets the type of the control target device and the corresponding code while selecting the GUI by referring to a GUI (Guide User Interface) or manual.

That is, when selecting by referring to the manual, the brand code list was given in the manual and the corresponding code was found and entered. However, in this case, it is necessary to know the brand name of the device to be controlled exactly, and in the case where a plurality of codes exist in the same brand, one has to input one by one and check whether the control operation is possible between the device and the controller.

In addition, when the user selects from the GUI, the basic brand name and various (Device Type, Number of Digit, Enter Key, Key repeat speed), etc. are input to the user through the GUI, and a plurality of blend codes exist. In this case, a multiple code test screen is displayed on the GUI, and the code is selected one by one by testing the corresponding code one by one and checking whether the device to be controlled is actually controlled.

Therefore, in the code setting method using the IAL blaster, since the conventional methods are configured so that the user must understand and select the type of the device to be controlled, there is a problem that an error occurs in the control of the device to be controlled by incorrect code selection.

Accordingly, an object of the present invention is to provide a code automatic search method capable of automatically detecting a blend code of a control target device in an Ill blister compatible device, and controlling the selected code to be automatically set in a database.

According to an aspect of the present invention, there is provided a method for automatically searching a code, the method comprising: setting a blend code of a control target device using an eye blaster in a controller device, the method comprising: a first step of inputting a remote control code of a control target device; Extracting a comparison data format from an input remote control code; A third step of detecting similarity by comparing the extracted comparison data with data stored in a database; And a fourth step of setting the blend code of the control target device when the detected similarity is higher than the reference value.

The present invention is characterized in that, when there is at least one blend code having a similarity higher than a reference value detected in the third step, a new remote control code is received to control the blend code setting for the control target device.

According to another aspect of the present invention, the comparison data format of the second step is characterized by extracting the section of the high signal and the section of the low signal from the high / low signal excluding the modulation frequency.

According to the present invention, although one or more blend codes having a similarity detected in the third step are higher than a reference value, when a new remote control code input is terminated, one of the candidate blend codes is selected and set as a blend code for the control target device. It is characterized by.

The present invention is characterized in that the brand code setting of the control target device is re-executed at the time of inputting a new remote control code after setting the blend code for the control target device.

According to the present invention, after the blend code of the control target device is set in the fourth step, the newly input remote control code is compared with the database, and the user is notified if a remote control code not found in the corresponding blend code is input. If necessary, the database may be requested to be updated.

Hereinafter, a code automatic search method according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a control for automatic code search according to an embodiment of the present invention. As shown, a set-top box 20 (STB), a DVD recorder (30), and a television (TV: 10), which are digital broadcast receivers, are connected in signal form and received by the set-top box 20. The broadcast signal can be displayed on the television 10 or recorded on the DVD recorder 30.

On the other hand, between the DVD recorder 30 and the set-top box 20 is configured to be able to transmit a remote control code (Commend) by the implementation of the eye blister. In this case, the DVD recorder 30 transmits an infrared code signal (Commend) to the set-top box 20. That is, as shown in the figure, the unidirectional control system is configured to control the set top box 20 in the DVD recorder 30. Therefore, in the present invention, the DVD recorder 30 is operated as a controller, and the set-top box 20 is operated as a control target device.

The set top box 20 is configured to receive an arbitrary broadcast channel under control of the DVD recorder 30 and to output the received broadcast signal (Audio / Video) to the DVD recorder 30. Lose. In this case, the signals that can be output from the set-top box 20 to the DVD recorder 30 are only audio / video signals, and the eye blister control signal Commend can only be transmitted from the DVD recorder 30 to the set-top box 20. .

The remote controller 40 is implemented in the same model as the set-top box 20, and when the user selects a desired operation through the remote controller 40, the remote controller 40 signal is transmitted to the DVD recorder 30. Received, the DVD recorder 30 is configured to provide a remote control signal to the set-top box 20. Therefore, in order to receive the remote controller 40 signal and provide the corresponding command to the set-top box 20, the code set according to the set-top box type is required in the DVD recorder 30. It will be described that the code signal is received and automatically set.

Although the DVD recorder 30 has all the configurations of a general DVD recorder and controls the recording or playback of broadcast signals and the recording or playback of external signals, the DVD recorder 30 receives a remote control signal and sets a remote control code. Let's take a quick look at the required configuration.

First, an IR transmitter / receiver (32) that receives or transmits a signal to the remote controller 40, and a database storing eye blaster code values corresponding to various blend codes as shown in FIG. 2. (DB: 33), and generates comparison data for comparison from the remote control code signal received at the IR receiver 32, and controls to select a blend code by comparing with reference data stored in the memory 33. It consists of Micom (31). The microcomputer 31 is configured to provide a command corresponding to the remote controller signal received from the remote controller 40 to the set-top box 20 after setting the blend code. In addition, the DVD recorder 30 includes an OSD generating unit (not shown) for generating various OSD data necessary for setting a blend code. The OSD generator is used to generate a user notification signal or the like according to a blend code setting.

The present invention having the configuration described above can control the operations of the DVD recorder 30 and the set-top box 20 by using the set-top box 20 and the remote controller 40 of the same type, which will be described below. Explain in detail.

3 is a flowchart illustrating an operation of an automatic code search method according to an embodiment of the present invention.

When a remote control code according to an arbitrary remote control signal is input from the remote control 40, the DVD recorder 30 receives the remote control code through the ID receiver 32 (S10). In the step S11, it is also possible to request a remote control code transmission from the DVD recorder 30 to the remote control 40 to receive a new remote control code. For example, when a plurality of codes exist in the same brand, a value corresponding to a remote control code input from a plurality of blend codes may be detected, and thus, a different remote control code input may be required to set a correct blend code.

When the remote control code is input in step S10, the microcomputer 31 extracts a comparison data format for detecting a blend code from the input remote control code (S11).

In the case of the remote control code, various types of remote control formats exist, and therefore, a comparable data format must be defined for comparing the received remote control codes with the format stored in the database of the memory 33.

Common remote control formats include

It consists of Leader (START) Code + Data (address / custom + data / key) Code. Each code has a period of high and low, and the code is modulated at a specific frequency for transmission. Therefore, the data format for the comparison should cover all the remote control formats, the data volume should not be large, and the measurement should be possible at the receiver. Only the interval data of the signal is extracted to configure a comparison data format. Of course, the value of each remote control code stored in the database also stores the same type of value as the comparison data format.

Therefore, since the comparison data should be extracted to a value irrespective of the format of the remote control signal, the present invention extracts the comparison data by standardizing the length of the remote control waveform. That is, the high signal section and the low signal section are extracted as a reference signal (for example, a clock signal) for the entire length of the remote control waveform. Therefore, as shown in FIG. 4, when the high data section and the low signal section are measured for the address code section among the entire lengths of the remote control waveforms, the comparative data format is extracted. 5-10-5-2-2-10- The comparison data of 5-13-5 is extracted.

When the comparison data with respect to the remote control code input in the step S11 is extracted, the microcomputer 31 reads the data format of the similar bread code from the database of the memory 33 and compares it (S12).

In the step S12, the value stored in the database 33 is compared with the value of the remote control code extracted in the step S11. In this case, as described above, for each remote control code stored in the database 33 as well. The comparison data format value may be extracted in advance, or may be extracted in a comparison step, and the remote control code stored in the database 33 may be compared with the comparison data extracted in step S11. In the process of comparing the two data, the similarity is detected by calculating a value of a similar part with respect to the length of the entire remote control code as a percentage.

Next, when the result (similarity) compared in the step S12 is larger than a predetermined value as a reference (S13), a blend code corresponding to a similar data format read from the database is set as a candidate (S14). The value set as the reference value in step S13 is a reference value for detecting which brand code the input remote control code value corresponds to, and is a value preset by an experiment or the like.

However, when the result compared in the step S13 is smaller than the value set as a reference (S13), the microcomputer 31 again checks another blend code similar to the comparison data format extracted in the step S11 from the database, and the step S11 Compare with the comparison data format extracted from (S12). The comparison process according to the step S12 is repeated until the comparison result (similarity) is greater than the reference value.

When a result (similarity) compared in step S13 is greater than a reference value and a candidate blend code is set in step S14, it is determined whether one or more candidate blend codes are set in step S14 (S15). ).

The step S15 is an operation process for checking the case where there is more than one candidate blend code. That is, in the case of a specific multi-brand code, some remote control codes (remote control key signals) are the same and only a specific remote control code may be different. In this case, the user can specify the wrong blend code only by checking some remote control codes.

Therefore, when the candidate blend code set in step S14 is not a single candidate, the process returns to step S10 to re-execute the blend code setting process based on another remote control code input value. In this process, the DVD recorder 30 requests the input of another remote control code (remote control signal) to the remote controller 40, extracts the comparison data from the remote control code newly input from the remote controller 40, and compares the data stored in the database. In this case, the process of determining similarity, determining whether the similarity is higher than the reference value, and establishing a candidate is performed again.

In the above process, if it is determined that there is only one candidate blend code set in step S15, the microcomputer 31 sets a blend code of a control target device as the set candidate blend code, and then provides a command to the set-top box 20. Is converted based on the set blend code and provided (S16).

On the other hand, when there are a plurality of candidate blend codes set in step S14, the DVD recorder 30 requests another remote control code (remote control key signal) from the DVD recorder 30, and in this case, a predetermined time for inputting a signal If there is no other remote control code input so that the elapsed time, the microcomputer 31 determines that the user has finished inputting the additional remote control code (S17).

If it is determined in step S17 that the additional remote control code input is terminated, the microcomputer 31 selects any one of the plurality of candidate blend codes set in step S14 and sets the final blend code (S17, S18). In this case, one method may be to first set a value having the highest similarity determined in step S13.

In this case, after the microcomputer 31 selects and sets one blend code in operation S18, the microcomputer 31 monitors an input signal of the remote controller 40 input by the user during device operation, and when a new remote control code is input. The correct blend code may be selected by performing a series of operations related to the blend code setting according to FIG. 3.

In addition, the controller (DVD recorder) of the present invention continuously monitors the remote control code of the control target device input to the controller even after the remote control blend code of the control target device is determined, and monitors the input remote control code and the database held therein. In comparison, if a remote control code that cannot be found in the corresponding brand code is input, a function of notifying the user and requesting an update of the database may be additionally implemented.

The above-described preferred embodiment of the present invention is disclosed for the purpose of illustration, and may be applied to the case where the controller automatically detects the blend code of the control target device and controls the automatic setting of the blend code selection on the database. . Therefore, those skilled in the art will be able to improve, change, substitute or add other embodiments within the technical spirit and scope of the present invention disclosed in the appended claims.

In the code automatic search method according to the present invention described above, in the IAL blaster method using a unidirectional control method for controlling a controlled device in a controller device, when a remote controller code is inputted to a controller, a comparison is made from the input remote control code. And extracting a data format that can be used and automatically setting a blend code corresponding to a control target device by comparing the extracted data format with a data value stored in a database. With this control, the present invention eliminates the need for the user to select the type and the code of the controlled device by referring to the GUI or the manual, and prevents an error in the control of the controlled device due to the wrong blend code selection. You get an effect.

Claims (6)

In the method for setting the blend code of the control target device in the controller device using the IAL blaster, A first step of inputting a remote control code of a control target device; Extracting a comparison data format from an input remote control code; A third step of detecting similarity by comparing the extracted comparison data with data stored in a database; When the detected similarity is higher than the reference value comprises the fourth step of setting to the blend code of the control target device, The comparison data format of the second step is a code automatic search method, characterized in that for extracting the section of the high signal and the section of the low signal from the high / low signal excluding the modulation frequency. The method of claim 1, And when there is at least one blend code having a higher degree of similarity detected in the third step than the reference value, receiving a new remote control code and controlling a blend code setting for the control target device. delete The method of claim 1, At least one blend code having a similarity detected in the third step is higher than the reference value, but when a new remote control code input is terminated, one of the blend codes having the similarity higher than the reference value is selected and set as a blend code for the control target device. Code automatic search method characterized in that. 5. The method of claim 4, And, after setting a blend code for the control target device, resetting the blend code of the control target device upon inputting a new remote control code. The method of claim 1, After the blend code of the control target device is set in the fourth step, the newly input remote control code is compared with a database that is held, and a user is notified of a remote control code that is not found in the corresponding blend code. A method of automatic code search, characterized by requesting an update of the database.

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