KR19980038630A - How to select the external input mode of the television - Google Patents

Abstract

The present invention provides a single key of a function key by assigning a key code corresponding to an external input mode correspondingly to an unknown function key for mode switching for a plurality of external playback devices respectively connected through an external input terminal in a television. A method of selecting an external input mode of a television that enables mode switching to a designated external input mode by an operation is provided.

Accordingly, the present invention provides an unknown function key (# 1, # 2, # 3) provided in the function setting unit 32 for a plurality of external input terminals (10, 12, 14) connected to a plurality of external playback devices. Are assigned to each key code according to the external input mode, and a single key operation is performed for a predetermined function key among the function keys # 1, # 2, and # 3 to which the key codes are respectively assigned. A second step of switching the external input mode to the corresponding external input terminal among the plurality of external input terminals (10, 12, 14) to enable the playback of the video / audio information from the corresponding external playback device It features.

Description

How to select the external input mode of the television

The present invention relates to a method of selecting an external input mode of a television. More particularly, an unknown function key is assigned to a plurality of external input terminals connected to a plurality of external playback devices in a television, and a single key of the assigned function keys is provided. The present invention relates to a method of selecting an external input mode of a television such that mode switching to the external input mode can be performed immediately by the operation.

Currently, in video / audio output devices such as television, which are generally used, a predetermined desired channel is selected from among multiple panel television signals transmitted from multiple television stations and subjected to video / audio signal processing to perform CRT (Cathode). It is equipped with broadcasting function to play video / audio through Ray Tube) and speaker as a basic function.

In addition, such a video / audio output device such as a television may be connected to a video tape recorder, a video game machine, or other video / audio player such as a video disc player, such as a video tape or a video game pack or a video disc. An external signal reproducing function for receiving video / audio information recorded on an audio recording medium by setting the external input mode and reproducing the video / audio is commercially available.

According to the external signal reproduction function of a video / audio output device such as a television, a video input jack terminal for receiving a video signal from an external video player in a predetermined portion on the rear side thereof, An R-channel audio input jack terminal for receiving audio signal of the channel and an L-channel audio input jack terminal for receiving L-channel audio signal are provided, respectively. These jack terminals are external video / audio playback devices. It is connected through each connecting cable with plug and plug to receive video / audio signal and supply it to the signal processing system.

However, in order to set an external input mode for reproducing an external video / audio signal from an external video device by such an external signal reproducing function, the corresponding function key of the remote control remote control or the matrix button unit provided in the main body is repeatedly repeated a plurality of times. As a result of such multiple key input operations, troublesome use occurs in setting the external input mode.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and key codes according to an external input mode are respectively corresponding to unknown function keys for mode switching for a plurality of external playback apparatuses respectively connected through an external input terminal in a television. It is an object of the present invention to provide a method for selecting an external input mode of a television which allows mode switching to a designated external input mode by a single key operation of the function key.

In order to achieve the above object, according to the method of selecting an external input mode of a television according to the present invention, an unknown function key provided in a function setting unit corresponds to a plurality of external input terminals connected to a plurality of external playback devices, respectively. A first step of assigning a key code according to an external input mode, respectively, and by inputting a predetermined function key among the function keys to which the key code is assigned, the external input to the corresponding external input terminal among the plurality of external input terminals. The present invention provides a method for selecting an external input mode of a television, comprising a second step in which a mode is changed in mode so that playback of video / audio information from a corresponding external playback apparatus is possible.

According to the present invention configured as described above, a plurality of external input terminals connected to a plurality of external playback devices such as a game machine, a video tape recorder or a video disc player in a television is provided in the matrix button portion of a remote control remote control or a control panel By assigning a key code corresponding to each unknown function key, if a predetermined function key is recognized by a single key operation among the unknown function keys, the external input mode is set to the external input corresponding to that function key. The mode is switched to the terminal side so that the video / audio information from the corresponding external playback apparatus can be reproduced through the CRT screen and the speaker, respectively.

1 is a block diagram showing a device for selecting an external input mode of a television according to the method of the present invention;

2 is a diagram illustrating an example in which a state of assigning unknown function keys to a plurality of external input terminals is displayed on a screen according to a preferred embodiment of the present invention;

3 is a diagram illustrating an example in which a state in which an external input mode is switched mode is displayed on a screen by an operation of a function key provided with an external input terminal according to a preferred embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

2: reception antenna, 4: tuner,

6: video IF unit, 8: audio IF unit,

10, 12, 14: external input terminal, 16: video mode switch unit,

18: video amplifier, 20: video signal processing,

22: video output unit, 24: audio mode switch unit,

26: voice amplifier, 28: voice signal processing,

30: audio output unit, 32: function setting unit,

34: data memory, 36: control unit,

38: OSD signal processing unit, 40: signal conversion unit.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a device for selecting an external input mode of a television according to the method of the present invention. In FIG. 4, reference numeral 4 denotes channel channel selection data for selecting a predetermined channel from the control unit 36, which will be described later. VT) is applied to the tuner for tuning the channel among the plurality of channels to be received in the receiving antenna (2), 6 is a video IF unit for separating the video signal of the tuned television broadcast and the video intermediate frequency amplification, 8 is A voice IF unit for separating the audio signal of the tuned television broadcast and amplifying the voice intermediate frequency.

Also, reference numerals 10, 12, and 14 are provided at predetermined portions of the rear end of the television and are connected to video / audio output terminals of an external playback apparatus such as a game machine, a video tape recorder or a video disc player, respectively. 12A, 14A and audio input terminals 10B, 12B, and 14B, respectively, which illustrate first, second, and third external input terminals for receiving signals according to video / audio information from an external playback device connected thereto.

Further, reference numeral 16 denotes a video signal of a television broadcast through the video IF unit 6 or the first, second and third external inputs according to the mode switching control in the external input mode by the controller 36, which will be described later. An image mode switch section in which external image information from terminals 10, 12, and 14 is selectively switched to be playable is shown.

Reference numeral 18 denotes an image amplifier which amplifies an image signal of a television broadcast through the image mode switch unit 16 or an external image signal according to an optional external input mode to an amplification level capable of signal processing, and 20 denotes the The signal amplified video signal is separated into a luminance signal and a color difference signal, and is output in the form of a composite video signal through luminance adjustment and color demodulation processing, and the OSD display signal generated by the OSD signal processing unit 38 to be described later is described above. An image signal processing unit for inserting and outputting into a composite video signal is shown, and 22 denotes an image output unit which is driven so that the composite video signal is scanned on a CRT screen to enable screen reproduction.

Further, reference numeral 24 denotes a video signal of the television broadcast through the audio IF unit 8 or the first, second and third external inputs according to the mode switching control in the external input mode by the controller 36, which will be described later. A voice mode switch section in which external voice information from the terminals 10, 12, 14 is selectively switched to be reproducible is shown.

Reference numeral 26 denotes a voice amplifier for amplifying the audio signal of the television broadcast through the voice mode switch unit 24 or the external voice signal according to the execution of the optional external input mode to an amplification level capable of signal processing. Denotes a voice signal processing unit that performs a voice signal processing function such as volume control and stereo signal processing or multiplex processing of the signal amplified voice signal, and 30 denotes a voice signal processed by the speaker. A voice output section for power amplifying operation

Further, reference numeral 32 is a matrix button unit provided in a predetermined portion of a remote controller for remote control or the main body of the main body, and assigns function keys to the plurality of external input terminals 10, 12, 14 for executing the external input mode. As the function setting unit, the function setting unit 32 includes a function execution key 32A for setting a function of granting a function key required for an external input mode, a setting key 32B for setting a grant state of a function key, It comprises a plurality of unknown function keys (# 1, # 2, # 3) assigned to the plurality of external input terminals (10, 121, 4) as function keys for each mode execution.

Further, reference numeral 34 denotes the plurality of function keys # 1, # 2, # 3 assigned to the plurality of external input terminals 10, 121, 4 by the key operation of the function setting unit 32. A data memory for storing a key code is shown, and 36 denotes a plurality of function keys # 1, which are respectively given to the plurality of external input terminals 10, 12, 14 by the key operation of the function setting unit 32. The key codes of # 2, # 3 are stored in the data storage 34 as key codes for executing the respective external input modes, and the function keys # 1, # 2, # 3 of the assigned The control unit performs mode switching on the video / audio mode switch unit 16, 24 directly based on the key code of the data storage unit 34 during single key operation.

In addition, reference numeral 38 generates OSD display information for displaying a state of assigning function keys to the plurality of external input terminals 10, 12, and 14 under the display control of the control unit 36. An OSD signal processing unit for generating OSD display information for displaying an execution state of a corresponding external input mode during key operation of a given function key, and 40 denotes OSD display information data generated by the OSD signal processing unit 38. The signal conversion unit outputs the image signal to the video signal processing unit 20 by analog conversion to enable screen reproduction.

In this case, when the function execution key 32A of the function setting unit 32 is key operated, the OSD signal processing unit 38 includes, for example, a video game machine, a video tape recorder and a video disc player as shown in FIG. In the state where the same external playback device is connected by the external input terminals 10, 121 and 4, respectively, a predetermined function key # 1 is assigned to the game, and a predetermined function key # 2 is assigned to the video tape. In this case, the state in which the predetermined function key # 3 is assigned to the video disc is displayed on the screen.

In addition, when the function key assigned to the external input terminal connected to the video game machine, for example, in the function setting unit 32 is keyed, the OSD signal processing unit 38, as shown in FIG. It is possible to display the execution status of the external input mode corresponding to the assigned function key.

Next, the operation of the present invention made as described above will be described in detail with reference to the accompanying drawings.

First, a video game machine and a video tape of the video input terminals 10A, 10B, 10C and the audio input terminals 10B, 12B, 14B of the first, second, and third external input terminals 10, 12, 14, respectively. In the state where the video output terminal and the audio output terminal of the recorder and the video disc player are connected, respectively, the television / video signal of the predetermined channel tuned by the tuner 4 is outputted by the video / audio IF unit 6, 8 respectively. Is separated and intermediate frequency amplified, and the video / audio signal is processed to be reproduced by the video / audio signal processing unit 20,28 through the signal amplification through the video / audio amplification unit 18, 26 and then outputs the video / audio output. Through the sections 22 and 30, they are reproduced through the CRT and the speaker respectively.

In this state, when the function execution key 32A of the function setting section 32 is key operated, the control section 36 controls the OSD signal processing section 38 to control the first, second and third external input terminals. As a state in which unknown function keys are assigned to (10, 12, 14) is displayed on the screen, as shown in FIG. 2, a plurality of function keys (# 1, # 2) of the function setting unit 32 are shown. # 3 and the setting key 32B are repeatedly keyed, so that, for example, the first function key # 1 is assigned to the display characters of the game corresponding to the first external input terminal 100 to which the video game machine is connected. A second function key # 2 is assigned to a display character of the video tape corresponding to the second external input terminal 12 connected to the video tape recorder, for example, to the third external input terminal 14 connected to the video disc player. The state in which the third function key # 3 is assigned to the display characters of the corresponding video disc is displayed on the screen.

At the same time, the control section 36 is assigned to the function keys # 1, # 2, # 3 respectively assigned to the first, second and third external input terminals 10, 12, 14, respectively. The key code is stored in the data storage 34 as a key code for executing the external input mode.

Then, in the function setting section 32, for example, when the first function key # 1 performs a single key operation for execution of an external input mode for playing back video / audio information from a video game machine, the control section (36) recognizes the key code from the data storage section (34) assigned to the first function key (# 1) and connects the video / audio mode switch sections (16, 24) to the first external input terminal (10), respectively. Video / audio from the video game machine input through the first external input terminal 10 and the video / audio mode switch unit 16,24 by switching to the video / audio input terminals 10A and 10B side of While the information signal can be reproduced normally through video / audio signal processing, the OSD signal processor 38 is controlled to display and display characters according to the corresponding external input mode, such as a game, as shown in FIG. Video / audio information from the outside It will show a run status.

According to the present invention made as described above, a plurality of unknown function keys provided in the matrix button portion of the remote control or the main body can be given to the plurality of external playback devices while being connected to the plurality of external playback devices in the television. Therefore, the external input mode for reproducing the video / audio information from the corresponding external playback apparatus can be immediately performed by a single key operation of the function key, thereby providing convenience to the user. .

Claims (1)

The unknown function keys (# 1, # 2, # 3) provided in the function setting unit 32 correspond to a plurality of external input terminals 10, 12, 14 connected to a plurality of external playback devices, respectively. A plurality of external inputs by a first step of assigning key codes according to an input mode, respectively, and by operating a single key among predetermined function keys # 1, # 2, and # 3 to which the key codes are assigned, respectively A second step of changing the external input mode to a corresponding external input terminal among the terminals 10, 12, and 14 enables playback of video / audio information from a corresponding external playback device. How to select external input mode.