KR20040013958A - Television System and Method for Converting External Input of The Same - Google Patents

Abstract

PURPOSE: A method for converting external input of a TV system is provided to easily convert a plurality of input modes, thereby improving the convenience of users. CONSTITUTION: If a general broadcast mode is converted into an external input mode, an input mode 1 is displayed in the case that the input mode 1 is a signal state(S10). If a user inputs a mode conversion command, a signal state of an input mode 2 is judged(S11-S12). If the input mode 2 is a signal state, the input mode 2 is displayed(S13). If the input mode 3 is a signal state, the input mode 3 is displayed(S14-S16). If another mode conversion command is inputted in using an input mode n-1, a signal state of an input mode n is judged(S17-S18). If the input mode n is a signal state, the input mode n is displayed(S19). If another mode conversion command is inputted in using the input mode n, a signal state of the input mode 1 is judged(S20-S21).

Description

Television System and Method for Converting External Input of The Same}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television system, and more particularly, to a television system and an external input switching method thereof for enabling a more convenient switching of a plurality of input modes.

In general, a TV system receives an RF broadcast signal through a tuner and demodulates to watch terrestrial broadcasts, and a plurality of external input ports for receiving and viewing various AV (Audio / Video) signals from the outside. ) Is installed.

As the TV system has been widely used and advanced, external input ports have increased to provide various input modes such as RF, AV1, AV2, AV3, S-Video, Component, RGB-PC, and DVI.

Referring to the TV system and its external input selection method according to the prior art as follows.

As shown in FIG. 1, the TV system according to the related art receives a plurality of input terminals 1a to 1n for receiving an external input signal and outputs the corresponding signal, and inputs the corresponding input terminal according to a user's input mode selection. And a microcomputer 2 for controlling to output an external signal.

At this time, the microcomputer 2 prepares all the input modes (input mode 1 to input mode n) that can be input through the plurality of input terminals 1a to 1n as a table.

If the user inputs an external input mode switching key through a separate key input unit (not shown) while using the general broadcast mode, the microcomputer 2 controls the display to display the first input mode (input mode 1) on the table. The external signal input through terminal 1 (1a) is displayed.

In this case, when there is no signal input through the input terminal 1 (1a), the first input mode displays a no signal state.

When the user inputs a mode switching key of the key input unit, the microcomputer 2 recognizes this and displays the corresponding input mode (input mode 2) in the order of the tabled input mode.

In other words, each time a mode switching command is input from the user, the input mode is sequentially switched in the order shown on the table. That is, it is set to sequentially pass through all the input terminals (1a ~ 1n) provided in the TV system switching mode.

In the method of switching the external input of the TV system according to the related art operating as described above, as shown in FIG. 3, when the user first inputs an external input mode switching command while using the general broadcast mode, the input mode 1 is displayed (S1). .

If a mode switching command is input from the user while displaying the input mode 1, the input mode 2 is displayed (S2 to S3). If the mode switching command is input during the input mode 2 display, the input mode 3 is displayed (S4 to S5).

As described above, when the mode change command is input, the input mode is sequentially displayed regardless of whether the input mode is input.

If n input modes (input mode 1, input mode 2,…, input mode n-1, input mode n) exist, input mode 1-> input mode 2-> input mode 3-> … -> Input mode n-1-> input mode n-> input mode 1->…. Display in order.

Therefore, when the mode switching command is input during the input mode n-1 display, the input mode n is displayed (S6 to S7). When the mode switching command is input during the input mode n display (S8), the feedback is fed back to the initial step S1. Display input mode 1.

In the conventional case, assuming that only the input terminal 1 (1a) and the input terminal 10 have an external input signal, and the user wants to switch the mode to the input mode 10 while using the input mode 1, the external input between the input mode 1 and the input mode 10 Input mode 10 can only be displayed after all input modes with no signal have passed.

In other words, when the user wants to switch from input mode 1 to input mode n, input mode 2, input mode 3,... Only after passing through input mode n-1, can you switch to input mode n.

In the above-described conventional TV system and its external input switching method, in the external input switching method according to the mode switching key input, not only the input mode in the signal state but also the input mode in the non-signal state decreases the utilization efficiency of the system. There was a problem.

Accordingly, an object of the present invention is to provide a TV system and an external input switching method for easily switching a plurality of input modes.

1 is a block diagram showing a TV system configuration according to the prior art

2 is a view showing the configuration of the input mode table of the prior art

3 is a flowchart illustrating a method of switching an external input of a TV system according to the related art.

4 is a flowchart illustrating a first embodiment of an external input switching method of a TV system according to the present invention.

5 is a flowchart illustrating a second embodiment of an external input switching method of a TV system according to the present invention.

Fig. 6 is a diagram showing the table structure of the second embodiment according to the present invention.

7 is a flowchart illustrating a third embodiment of an external input switching method of a TV system according to the present invention.

8 is a diagram showing a table structure of a third embodiment according to the present invention.

9 is a flowchart illustrating a fourth embodiment of an external input switching method of a TV system according to the present invention.

Fig. 10 shows an OSD menu of a fourth embodiment according to the present invention.

Explanation of symbols for main parts of the drawings

1a ~ 1n: Input terminal 1 ~ Input terminal n

2: micom

In the TV system according to the present invention for achieving the above object, in a TV system having a plurality of input terminals, a user inputs a key input unit for inputting an input mode switch command, and the user inputs an input mode switch command through the key input unit. If the input is configured to include a microcomputer to control the signal input state of the plurality of input terminals in sequence to skip the input mode of the non-signal state and to switch to the corresponding input mode of the signal state.

In addition, the external input switching method of the TV system for achieving the above object is an external input switching method of a TV system having a plurality of input terminals and providing a plurality of input modes corresponding thereto, the presence signal in the plurality of input modes Retrieving an input mode of a state; And controlling to switch to the searched corresponding input mode according to a user's request.

Other objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

Hereinafter, a TV system and an external input switching method thereof according to the present invention will be described with reference to the accompanying drawings.

Since the configuration of the TV system according to the present invention is similar to the above-described conventional technology, the configuration drawing according to each embodiment is omitted, and the reference numerals for the same configuration are the same, but the microcomputer 2 operation and input mode table of the present invention are described. The configurations are different from each other.

The TV system and its external input switching method according to the present invention will be described with reference to the following embodiments.

First Embodiment

According to a first embodiment of a TV system according to the present invention, in a TV system having a plurality of input terminals 1a to 1n, a key input unit (not shown) for a user to input an input mode switching command, and the user inputs the key When the input mode switching command is input through the input unit, the microcomputer detects the presence or absence of signals of the plurality of input terminals 1a to 1n sequentially, skips the input mode in the no signal state, and controls to switch to the corresponding input mode in the yu signal state ( 2) is configured to include.

At this time, all the input modes (input mode 1 to input mode n) that can be provided by the TV system are sequentially created as shown in FIG. 2 and stored in a memory unit (not shown).

According to the first embodiment of the TV system according to the present invention configured as described above, when the external input is displayed through the TV system, the presence or absence of a signal of each input terminal 1a to 1n from the input mode 1 to the input mode n is displayed. Status is detected sequentially.

As a result of the detection, the entire system is controlled to skip the input mode corresponding to the input terminal in the no signal state and to switch to the first input mode in which the presence signal state is detected.

When the user inputs an input mode change command through the key input unit, the user recognizes the input mode change command and detects the presence or absence of a signal from the next input terminal to switch to the input mode of the signal state.

The external input switching method according to the first embodiment of the TV system of the present invention operating as described above, as shown in FIG. 4, when the signal is switched from the general broadcast mode to the external input mode, the signal of the first input mode (input mode 1). In operation S10, the input mode 1 is displayed when the input mode 1 is in the signal state.

Then, when a mode switch command is input from the user, it is determined whether the input mode 2 signal is present (S11 to S12). That is, it is determined whether there is a signal input through the input terminal 2 (1b).

As a result of the determination (S12), if the input mode 2 is in a signal state, the input mode 2 is displayed (S13).

When a mode change command is input from the user while using the input mode 2, the input mode 3 signal is determined to be present. If the input mode 3 is a signal state, the input mode 3 is displayed (S14 to S16).

On the other hand, in the determination result (S12), if the input mode 2 is in the no signal state, the input mode 2 is skipped and then the above-described step S15, that is, whether the input mode 3 signal status is determined.

In other words, the input mode in the no signal state is not displayed and the feedback is performed to determine the presence or absence of the signal in the next input mode.

When the mode change command is input while the input mode n-1 is input, the input mode n signal is determined to be present. If the input mode n is a signal state, the input mode n is displayed (S18 to S19).

Subsequently, when a mode change command is input while using the input mode n (S20), it is determined whether the input mode 1 signal is present (S21), and if the input mode 1 is a signal state, the process returns to the initial step S10 to perform the above-described process. .

Therefore, the first embodiment according to the present invention detects the presence or absence of the signal state of each input terminal (1a ~ 1n) corresponding to all the input modes that can be provided at the time of mode switching, skipping the input mode of the no signal state and the input of the presence of the signal state Switch to mode.

For example, assuming that input modes 1 and 5 have a signal input and five input modes 2, 3 and 4 do not have a signal input. Skip the input mode 2, 3, 4 of the state and switch directly to input mode 5 with signal input.

Second Embodiment

According to a second exemplary embodiment of a TV system according to the present invention, in a TV system having a plurality of input terminals (1a to 1n), a user inputs a key input unit for inputting an input mode switching command, and only an input mode of a signal state. A memory unit for storing, sequentially detects the presence or absence of signals of the plurality of input terminals 1a to 1n, tabulates only the input mode of the presence of a signal state, and controls to store them in the memory unit, and the user inputs them through the key input unit. The microcomputer 2 is configured to control to switch to a corresponding input mode by the stored table when a mode switching command is input.

According to the second embodiment of the TV system according to the present invention configured as described above, in the external input mode of the TV, the microcomputer 2 sequentially detects the presence or absence of signals of the plurality of input terminals 1a to 1n, and then inputs a signal state. Only each input mode corresponding to the terminal is tabled and stored in the memory unit.

When the creation of the table is completed, the controller controls the display to display the first input mode by the table stored in the memory unit. When the user inputs an input mode switching command through the key input unit, the controller recognizes the first input mode. Control to switch to the corresponding input mode.

External input switching method according to the second embodiment of the TV system of the present invention operating as described above, as shown in Figure 5, when the input from the general broadcast mode to the external input mode, the microcomputer (2) all the input provided in the system The signal presence state of the terminals 1a to 1n is checked (S30).

Only the input terminal in the signal state is created and stored in the input mode table (S31).

At this time, the input terminals of the active signal state are 1, 4, 5,... , m, corresponding input modes 1, 4, 5,. Create a table m.

Subsequently, when the table is completed, the input mode 1 is displayed in the table (S32).

If a mode change command is input from the user while using the input mode 1, the input mode 4 is displayed in the table (S33 to S34).

If a mode switching command is input while using the input mode m-1 (S36), the input mode m is displayed in the table (S37), and if a mode switching command is input while using the input mode m (S38), the feedback is returned to step S32. do.

Therefore, according to the second embodiment of the present invention, a table is configured only for the input mode in the presence of a signal state by checking the presence or absence of signals of all the input terminals 1a to 1n provided in the TV system, and setting the input mode according to the order on the table. It is to be able to switch.

Third embodiment

According to a third embodiment of a TV system according to the present invention, a TV system having a plurality of input terminals (1a to 1n), a display for displaying the presence or absence of signals of the plurality of input terminals (1a to 1n) in the OSD menu form (Not shown), the user selects a desired input mode by referring to the displayed OSD menu, a key input unit for inputting an input mode switching command, and stores only the input mode selected by the user by referring to the OSD menu. The memory unit, and sequentially detect the presence or absence of signals of the plurality of input terminals 1a to 1n and display them in the form of an OSD menu through the display unit, and table only the input mode selected by the user. And the user inputs an input mode switching command through the key input unit. It is configured to include a microcomputer (2) for controlling to switch the input mode by the label.

In the third embodiment of the TV system according to the present invention configured as described above, each input terminal detected after the microcomputer 2 sequentially detects the presence or absence of signals of the plurality of input terminals 1a to 1n in the external input mode. Displays the presence or absence of signals (1a ~ 1n) on the display unit in the form of an OSD menu.

When the user selects an input mode through the key input unit with reference to the OSD menu displayed on the display unit, only the selected input mode is tabled and stored in the memory unit. When the table creation is completed, the first input mode is displayed in the stored table.

When the user inputs an input mode switching command, the controller switches to the input mode according to the order of the table stored in the memory unit.

External input switching method according to the third embodiment of the TV system of the present invention operating as described above, first, when the input from the general broadcast mode to the external input mode, the microcomputer (2) all the input terminals (1a ~ 1n) provided in the system Checks the presence or absence of the signal and displays the presence or absence of the signal in each input mode at a predetermined position on the screen with the OSD.

As illustrated in FIG. 7, the user selects an input mode in which the user is in a signal state through a separate key input with reference to the signal presence state of each displayed input mode (S40).

The table is created only in the selected input mode and stored in the microcomputer 2 (S41).

At this time, the input mode selected by the user is the input mode 2, 7, 8,... , l, selected input modes 2, 7, 8,... as shown in FIG. , l to table.

Then, the input mode 2 is displayed in the table (S42).

If a mode change command is input from the user while using the input mode 2, the input mode 7 is displayed in the table (S43 to S44).

When the mode switching command is input during the use of the input mode l-1 (S46), the input mode l is displayed in the table (S47). When the mode switching command is input during the input mode l (S48), the feedback is returned to step S42. do.

Accordingly, according to the third embodiment of the present invention, the user arbitrarily selects an input mode in a signal state, and configures the selected input mode in a table, and switches the input modes according to the order of the configured table.

Fourth Embodiment

In a TV system having a plurality of input terminals 1a to 1n, a fourth embodiment of the TV system according to the present invention includes a key input unit for a user to input an input mode list display command, and the input mode list as an OSD menu type. A display unit configured to display a table, a memory unit configured to store only the input mode selected by the user or an input signal state, and a signal state of the plurality of input terminals 1a to 1n, sequentially And control only to store the input mode corresponding to the input mode selected by the user or the input mode selected by the user and to store in the memory unit, and display the input mode list OSD menu according to the input mode list display command input by the user, If you select the input mode by referring to the mode list OSD, It is configured to include a microcomputer (2) for controlling to switch to the drawing.

In the fourth embodiment of the TV system according to the present invention configured as described above, the microcomputer 2 detects the presence or absence of signals of the plurality of input terminals 1a to 1n, and the second embodiment or the third embodiment. Similarly, only the input mode in the signal state is created or only the input mode selected by the user is created and stored in the memory unit.

When the input mode list display command is input from the user, the microcomputer 2 recognizes the input mode list display command and controls the display to display the table list of the input mode in the OSD menu. When the user selects an input mode with reference to the displayed input mode list OSD menu, the system controls the entire system to switch to the selected input mode.

The fourth embodiment of the method for switching external inputs of the TV system according to the present invention, which operates as described above, is the same as the second or third embodiment described above. Write or create a table only in the input mode selected by the user and store it in the microcomputer (S50).

In addition, when the user determines whether an input mode list display command is input through a specific specific key (S51), and if the user inputs an input mode list display command (S51), the table displays the input mode list created by the OSD. (S52).

For example, when the table-created input modes are input mode 2, input mode 7, input mode 8, and input mode 9, the input mode list OSD displays an external input signal type of each input mode as shown in FIG. Can be displayed together

Subsequently, it is determined whether the user selects an input mode on the displayed input mode list OSD (S53), and when the user selects an input mode on the input mode list OSD, the selected input mode is displayed (S53). S54).

In the method of switching the external input of the TV system according to the present invention described above, after searching for the presence or absence of signals of a plurality of input terminals when the external input is displayed through the TV system, the input mode of the no signal state is skipped and the input mode of the signal state is used. Only by changing the mode, or configuring the input mode in the signal state or the input mode selected by the user in a table, and switching the modes according to the order on the configured table, it is possible to improve user convenience and improve system use efficiency. It has an effect.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

Claims (7)

In a TV system having a plurality of input terminals, A key input unit for a user to input an input mode switching command, When the user inputs an input mode switching command through the key input unit, the microcomputer is configured to detect whether the plurality of input terminals have a signal state in sequence, skip the input mode in the non-signal state, and control to switch to the corresponding input mode in the signal state. TV system comprising a. The method of claim 1, A display unit configured to display a signal presence state of the plurality of input terminals in the form of an OSD menu; And a memory unit configured to table and store only an input mode selected by the key input unit by referring to an OSD menu displayed by the user through the display unit. The method according to claim 1 or 2, The microcomputer And when the user inputs an input mode change command through the key input unit, the control unit switches to the input mode by a table stored in the memory unit. In an external input switching method of a TV system having a plurality of input terminals and providing a plurality of input modes corresponding thereto, Searching for an input mode of a signal state in the plurality of input modes; And, And switching to the searched input mode according to a user's request. The method of claim 4, wherein Searching for an input mode of a signal state in the plurality of input terminals; And detecting a signal presence state of the plurality of input terminals sequentially, skipping an input mode of a no signal state, and searching only an input mode of a signal state. The method of claim 4, wherein Searching for an input mode of a signal state in the plurality of input terminals; Checking a signal presence state of the plurality of input terminals; And converting only the input modes of the signal state as a result of the check. The method of claim 4, wherein Searching for an input mode of a signal state in the plurality of input terminals; Checking a signal presence state of the plurality of input terminals; Displaying a signal presence state of the checked plurality of input terminals in the form of an OSD menu; And a step in which the user selects a desired input mode with reference to the displayed OSD menu and tabulates only the selected input mode.