CN100505844C - Digital TV and its Input Mode Switching Method - Google Patents

Abstract

The present invention relates to a digital television and its input pattern switching method. Said digital television includes remote controller, signal-receiving portion, control portion, signal input portion and signal processing portion. Its input pattern switching method includes the following several stages: switching stage, according to first user pattern selection key selecting key input frequency and switching analog broadcast pattern or digital broadcast pattern; display stage, according to input second pattern selection key switching screen display; judgement stage, according to the displayed the above-mentioned screen display judging that its set time is exceeded or not; and the stage of the according to above-mentioned set time and input of above-mentioned digital key, using correspondent pattern to make switching.

Description

Digital TV and its Input Mode Switching Method

technical field

The invention relates to a digital TV, in particular to a digital TV which is more convenient for switching and processing various input signals and its input mode switching method

Background technique

Usually, TV (Digital Television) is the signal processing in the TV receiver. Needless to say, all the signals transmitted from the broadcasting station to the home are digital signals, so the reproduction is more obvious in picture quality and sound quality.

In recent years, it has become a basic matter to provide interfaces to various external devices such as VCR (Video Recorder), DVD (Digital Video Player), STB (Set Top Box), and PC (Personal Computer) other than TV broadcast signals. Especially for digital TVs and separate TVs with high-definition levels, it is a trend to gradually strengthen multimedia functions.

Moreover, the remote controller (hereinafter referred to as the remote controller) for the convenience of the user is a keyboard provided on the body of the electronic product, which is not directly assembled but provided for remote control. Almost all electronic products produced recently are products with remote controls for remote control to help the user conveniently.

The function of this remote controller is not only to simply have functions such as TV on/off, channel switching, and volume adjustment. Instead, it is used as a tool for switching input modes of various connected external devices.

Referring to the accompanying drawings, the conventional digital TV structure and its input mode switching method will be described as follows.

Fig. 1 is a block diagram of the digital TV structure of the traditional technology; Fig. 2 is the main structure of the remote controller shown in Fig. 1

Views; FIG. 3 is a schematic diagram of a traditional digital TV input mode timing switching method.

The digital television of traditional technology is as shown in Figure 1, and it is made of following structure: the remote controller (10) that is set for the input of user's request command (switching, volume adjustment and input mode switching); (10) the signal receiver (20) that the output signal is provided with; To the user order control signal input by above-mentioned signal receiver (20), the microcomputer (30) that outputs; According to above-mentioned microcomputer (30) control signal , a signal input unit (40) for receiving an image signal input from a broadcast signal and an external device; the image signal input through the above-mentioned signal input unit (40) is subjected to signal processing for enabling display in the display unit (60) A signal processing unit (50); a display unit (60) provided for displaying the broadcast signal processed by the signal processing unit (50).

Here, the above-mentioned remote controller (10) is configured for input switching according to TV/external input and multimedia input as shown in FIG. 2 . That is, the user is the number of TV/external input key input, as shown in Figure 3, AV (audio-visual) 1→AV2→AV3→AV4→component 1→component 2→RGB (red, green, blue)→DVI (interactive digital Video system)) → ATSC (digital image signal) etc. sequence is formed for mode switching.

And, if the user inputs a multimedia signal, the sequence of element 1→element 2→RGB→DVI→element 1 is to switch the forming mode.

According to the traditional technology digital TV of the above-mentioned structure, if the user inputs the desired mode switch through the above-mentioned remote controller (10), then through the repeated input of the TV/external input key or the multimedia key on the above-mentioned remote controller (10), it can be switched. to the desired mode.

That is, according to the switching signal output by the above-mentioned remote controller (10), the above-mentioned microcomputer (30) recognizes the switching signal, and inputs a signal from a corresponding external device (not shown in the figure) in order to enable the signal to be received. output control signal; the above-mentioned signal input part (20) receives the input of the image signal from the corresponding external device (not shown in the figure) selected by the above-mentioned user, and transmits to the above-mentioned signal processing in order to enable display in the above-mentioned display part Ministry (50).

To sum up, the traditional digital TV and its input mode switching method have the following problems.

The 1st, in the TV/external input key or the multimedia key that the machine is set on the remote controller, according to any one of its repeated input, switch to form the desired mode, so the time required for mode switching is long.

Second, since the number of times of key input is large, user inconvenience is caused.

Third, user inconvenience causes a decrease in product reputation.

Contents of the invention

The purpose of this invention is to provide a kind of digital television and input mode switching method thereof, it solves the problem that traditional technology exists, selects TV or AV/multimedia mode speed is fast, directly selects multimedia input or AV input with its assigned number key, It can be switched immediately, and the operation is convenient. In the TV environment where the multimedia input is gradually diversified, the input switching is easier and faster, which improves the credibility of the product.

The purpose of the present invention is achieved like this: the digital television comprises the following parts: according to the user's selection of the first mode for selecting the analog broadcast signal or digital signal or the second mode for selecting the AV or multimedia mode, the corresponding key signal is output And the remote controller that is set; the signal receiving part that receives the key signal that described remote controller selects is set; Judging whether the key signal corresponding to the first or second mode of the signal receiving part is input, if the input is the same as that of the first mode The key signal corresponding to the 2 mode enables the corresponding OSD (screen display) screen to be displayed, and in the screen display state, if the digital key signal assigned on the remote control is input within the set time, use the digital key to input the corresponding key signal. A control unit capable of switching and controlling the mode formation; a signal input unit provided to receive the switched mode input signal according to the control signal of the control unit; a signal input by the signal input unit is used to make it appear on the display screen. A signal processing unit that performs signal processing for display.

The structure of above-mentioned typical remote controller comprises: in digital image signal (ATSC) or analog image signal (NTSC), the 1st mode selection key (TV selection key) that is provided with in order to switch with any one TV mode; Audio-visual) or the second mode selection key (AV/multimedia) for switching between the multimedia modes; and the number keys assigned to different keys and different multimedia modes.

The typical control unit includes a timer that detects whether the set time has elapsed when the second mode is selected by the remote controller.

The digital TV input mode switching method of the remote controller with the first and second mode selection keys and number keys proposed in order to achieve the above-mentioned purpose is composed of the following stages: The first mode selection key, then according to the input times of the above-mentioned first mode selection key, switch the switching stage of analog broadcast mode or digital broadcast mode; if the user inputs the second mode selection key for selecting AV or multimedia mode, then it is the mode The display stage of switching the screen display for display; if the above-mentioned screen display is displayed, it is judged whether the set time is exceeded; the stage of switching with the corresponding mode according to whether the above-mentioned set time is exceeded and the input of the above-mentioned number keys .

As a typical example, if the setting time of the machine is exceeded and the input of the above-mentioned number keys, the switching stage of the corresponding mode is in the state where the above-mentioned screen display is displayed, if the machine setting time has not exceeded, and the above-mentioned number keys can be used Input, then the above-mentioned input number keys are switched with the assigned mode; if the above-mentioned setting time has exceeded, then the external input of the set sequence is automatically switched.

To sum up, the digital TV and its input mode switching method of the present invention have the following effects.

First, when selecting TV or AV/multimedia mode, key input is used, which makes it easy to distinguish each other, and the user can quickly select the desired mode.

Second, after selecting the mode, if the user wants to select the required multimedia input or AV input, he can directly input it with the assigned number keys, and the switch can be performed immediately, which is more convenient for the user to operate.

Third, in the TV environment where multimedia input is gradually diversified, input switching is easier and faster, which improves the credibility of the product.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is a structural block diagram of digital television of traditional technology.

Fig. 2 is a front view of the structure of the remote controller shown in Fig. 1 .

FIG. 3 is a schematic diagram of a conventional digital TV input mode timing switching method.

Fig. 4 is a structural block diagram of the digital television of the present invention.

Fig. 5 is a flowchart of a method for switching input modes of a digital TV according to the present invention.

Fig. 6 is a front view of the structure of the remote controller shown in Fig. 4 .

(a) (b) of FIG. 7 is a flow chart of the input mode switching method according to key input.

Explanation of symbols in main parts of drawings

100: remote control; 101: 1st mode selection key; 102: 2nd mode selection key;

103: Number keys; 200: Signal receiving department; 300 microcomputer;

301: timer; 400: signal input part; 500 signal processing part;

600: display unit;

Detailed ways

The digital TV and its input mode switching method of the present invention will be described in more detail below with reference to the accompanying drawings.

Fig. 4 is a structural block diagram of the digital TV of the present invention; Fig. 5 is a flow chart of the input mode switching method of the digital TV of the present invention; Fig. 6 is a front view of the structure of the remote controller of the present invention.

The digital television of the present invention is as shown in Fig. 4, and it is made up of following structure: according to the 1st or the 2nd pattern that the user selects, output the remote controller (100) that corresponding key signal is set; The signal receiving part (200) that is provided with the key signal; Judging whether the key signal corresponding to the 1st or the 2nd mode by the above-mentioned receiving part (200) is input; If the key signal corresponding to the above-mentioned 2nd mode is input , then the screen corresponding to the OSD (On Screen Display) can be displayed for control; in the state where the OSD is being displayed, if the corresponding number key signal on the remote controller (100) is input within its setting time, then the corresponding A control unit (300) capable of controlling mode switching; a signal input unit (400) provided to receive a switched mode signal input according to a control signal of the upper control unit (300); through the signal input unit (400 ) The input signal can be displayed on the screen and the signal processing unit (500) for signal processing; in the above-mentioned signal processing unit (500), the display unit (600) for displaying the processed image signal.

Above-mentioned remote controller (100) is as shown in Fig. 6, and it is made of following structure: for being able to select the 1st mode selection key (101) that analog broadcast signal or digital broadcast signal are provided with; The second mode selection key (102) is set; after the second mode selection key (102) is input, various number keys (103) of the desired mode can be directly selected.

The operation of the input mode switching method of the digital television of the present invention constructed as above will be described as follows. The user can select the input signal of the first mode selection key (101) of the TV mode through the above-mentioned remote controller (100). In image signal (NTSC), it is selected alternately.

On the other hand, the user can select the second mode selection key (102) of the AV/multimedia mode from the remote controller (100) to input, and the OSD for selecting the AV or multimedia mode on the screen is displayed, and for receiving the next key to enter standby mode.

Now, the standby state is to input any one of the various number keys (103) within the set time to switch the corresponding modes of the various number keys (103); in the standby state, if If the number keys are not input, the next external input mode will be automatically switched according to the set sequence.

In addition, the signal input unit (400) receives a control signal of the microcomputer (300) based on the mode switching signal input from the remote controller (100), and is input by receiving a broadcast signal corresponding to the switched mode or external equipment. Signal: the signal processing unit (500) processes the signal input through the signal input unit (400) so that it can be displayed on the display unit (600), and outputs the signal to the display unit (600).

The digital TV input mode switching method of the present invention with the above-mentioned structure will be described with reference to FIG. 5 as follows. First, it is judged whether the TV key is selected (S11).

Here, as a result of the above judgment (S11), if the user selects the TV key, an ATSC or NTSC broadcast signal is output according to the number of TV key input by the user (S12).

And, if the user selects power off, then shut down; otherwise reset (S13) with the above-mentioned stage (S11).

On the other hand, above-mentioned judging result (S11), if above-mentioned TV key is not selected, then judge whether AV key is selected (S14)

Here, as a result of the above judgment (S14), if the AV key is selected, the OSD selected for AV is displayed (S15).

Then, it is judged whether or not the device setting time has elapsed (S16).

Above-mentioned judging result (S16), if pass through machine setting time, then next mode is automatically switched (S17).

On the other hand, if the above-mentioned judgment result (S16) has not passed the machine setting time, then it is judged whether the numerical keys allocated by the machine are input (S18).

Above-mentioned judging result (S18), if the number key input of machine distribution, then switch (S19) with the mode corresponding to the input number key.

As mentioned above, the input mode switching method of digital TV according to the present invention is: if the user selects the TV keyboard, then as shown in Figure 6, NTSC broadcast and ATSC broadcast can be sequentially selected according to the TV key input times. And, if the user selects the AV/multimedia key, as shown in Figure 7, then "AV-" enters the standby state for receiving the input of the next key while displaying on the OSD; In order to correspond to the respective external devices, input the number keys assigned by the machine, and automatically switch with the corresponding external input. If there is no number key input during the set time, it will automatically switch to the next sequence of external inputs.

Claims (5)

1. A digital television, characterized in that: A remote controller configured to output corresponding key signals according to the first mode for selecting an analog broadcast signal or digital broadcast signal or the second mode for selecting an AV or multimedia mode selected by the user; a signal receiving unit configured to receive a key signal selected by the remote controller; Judging whether the key signal corresponding to the first or second mode of the signal receiving part is input, if the key signal corresponding to the second mode is input, the corresponding screen display screen can be displayed, and in the screen display state , if the digital key signal assigned on the remote controller is input within the set time, the digital key is used to input the corresponding mode to form a control part capable of switching and controlling; a signal input unit provided to receive the switched mode input signal according to the control signal of the control unit; A signal processing unit that performs signal processing by displaying a signal input through the signal input unit on a display screen. 2. The digital TV according to claim 1, characterized in that: In digital image signals or analog image signals, the first mode selection key provided for switching between any TV mode; The second mode selection key for switching between audio-visual and multimedia modes; Numerical keys assigned to different keys and multimedia modes different from each other. 3. The digital TV according to claim 1, characterized in that: The control unit further includes a timer for detecting whether or not a set time set by the equipment setting has elapsed when the second mode is selected by the remote controller. 4. A remote control digital TV input mode switching method with the first and second mode selection keys and number keys, characterized in that: it consists of the following stages: If the user selects the first mode selection key for selecting the analog broadcast signal or the digital broadcast signal, a display stage for displaying the mode switching screen display; If the user inputs the second mode selection key for selecting the AV or multimedia mode, the display stage for displaying the mode switching screen display; If the above-mentioned screen display is displayed, then judge whether the set time is exceeded; According to whether the above-mentioned set time is exceeded and the input of the above-mentioned number keys, the stage of switching in the corresponding mode is carried out. 5. The digital TV input mode switching method according to claim 4, characterized in that: According to whether the set time has passed and the input of the above-mentioned number keys, the switching stage is performed in the corresponding mode. In the above-mentioned OSD display state, if the set time of the machine has not passed, and the above-mentioned number keys can be input, then for the above-mentioned input number keys, the switching stage is performed in the machine allocation mode; If the above-mentioned machine setting time has passed, the stage of switching is automatically performed by external input of the machine setting sequence.

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