KR100348267B1 - method for automatic changing mode in TV - Google Patents

Abstract

This is to provide a TV mode switching method for automatically switching the video mode or the RF mode in the TV according to the VCR and TV connection state when watching a VCR, and equipped with a TV and a VCR. In the TV mode automatic switching method, (a) searching whether the Ez_Link source is determined when the TV is powered on, and (b) if the Ez_Link source is not determined, the automatic determination process of the Ez_Link source. And (c) re-searching whether the Ez_Link source is determined after performing the automatic determination process of the Ez_Link source and displaying an OSD guide indicating that Ez_Link is not correctly connected if Ez_Link is not determined, and (d) If it is determined that the Ez_Link source is determined, it searches for the same status as the current TV's EZ_LINKLASRRAM and automatically switches modes according to the result. In this case, the VCR and the TV mode are automatically switched according to the VCR and the TV connection state, so that the convenience of use can be provided.

Description

Method for automatic changing mode in TV

The present invention relates to a TV (TV), and more particularly to a method for automatically switching the mode of the TV.

Hereinafter, with reference to the accompanying drawings with respect to the automatic mode switching method of the TV according to the prior art as follows.

1 is a view showing an example of a one-line data communication configuration of a TV according to the prior art, showing the back of the TV (1) and the back of the VCR (2), the antenna and the RF input of the VCR (2) is connected The RF output is connected to the RF input of the TV 1 through the signal line, and the video and audio output of the VCR 2 are connected to the external input 1 of the TV 1 through the video and audio AV line. Ez-Link of 1) and Ez-Link of the VCR 2 are connected by 1 line data communication line.

FIG. 2 is a diagram showing a detailed configuration of the Ez-Link of FIG. 1, wherein the TV 1 includes a control unit 1a which collectively controls the overall operation of the TV 1, and an input / output port (RX Port) (TX Port). (1a-1) (1a-2), and an Ez-Link (1b) connected to a one-line data communication line to transmit and receive data with the VCR (2), the VCR (2) is a VCR (2) The control unit 2a for controlling the overall operation of the control unit, an input / output port (RX port) (TX port) 2a-1, 2a-2, and a one-line data communication line, It consists of an Ez-Link 2b for transmitting and receiving data.

Figure 3 is a flow chart of a mode automatic switching method of the TV according to the prior art.

The automatic mode switching method of the TV according to the prior art configured as described above will be described in detail with reference to the accompanying drawings.

First, as shown in FIG. 1, the RF input / output of the VCR 2 and the TV 1 is a signal line, the video and audio terminals and the external input 1 are video, audio and audio video lines, and each Ez-Link is 1. When the VCR 2 performs power on (VCR regeneration) in the state connected with the line data communication line, as shown in FIG. 2, the control unit 2a of the VCR 2 outputs its current state. Transmission is made to the TV 1 via the terminals 2a-2 and Ez-Link 2b.

Then, the control unit 1a of the TV 1 reproduces the VCR 2 from the VCR 2 according to the state information of the VCR 2 through the Ez-Link 1b and the input terminal 1a-1. Automatically switch to video mode at start or power on.

That is, as shown in FIG. 3, the control unit 1a of the TV 1 searches whether there is data input from the VCR 2, and if there is data, searches whether the data is power on information (S1 ~). S2).

If the search result is the VCR (2) power on information, the control unit (1a) of the TV (1) is searched whether the current TV (1) is in the on state, and if it is in the on state, the current TV (1) is in video 1 mode, If the search result is not in the on state, power-on of the TV 1 is performed, and then the current TV 1 is searched for whether it is in the video 1 mode (S3, S4, and S6).

If the result of the search is not the VCR (2) power on information, it is searched whether the VCR playback is started. If the VCR (2) is playback start information, it is searched whether the current TV 1 is in the video 1 mode (S5 and S6).

As a result of the search, if the current TV 1 is not in the video 1 mode, the control unit 1a of the TV 1 switches to the video 1 mode (S7).

However, since the TV's VCR input is fixed to video 1 (external input 1), the TV automatic mode switching method according to the prior art is not applicable to the case where the TV VCR input uses RF3, 4 channels, and Ez-Link. In case of using automatic switching by, the user must use the VCR RF output as the RF input of the TV because the TV and the VCR should be connected to only Video 1 at all times.

Accordingly, the present invention has been made to solve the above problems, and provides a TV mode automatic switching method for automatically switching the video mode or the RF mode in the TV according to the VCR and TV connection state when watching the VCR. The purpose is.

1 is a diagram showing an example of a one-line data communication configuration of a TV according to the prior art;

FIG. 2 shows a detailed configuration of Ez-Link in FIG.

Figure 3 is a flow chart of a mode automatic switching method of the TV according to the prior art

4 is a flow chart of the automatic mode switching method of the TV according to the present invention

FIG. 5 is a flow chart showing the automatic identification process of the Ez-Link source of FIG.

A feature of the automatic mode switching method of the TV according to the present invention for achieving the above object, in the automatic mode switching method of TV (TV) and VCR (VCR), (a) the TV power Searching whether the Ez_Link source is determined at power on; (b) performing an automatic determination process of the Ez_Link source if the Ez_Link source is not determined; and (c) automatically determining the Ez_Link source. Rescanning whether the Ez_Link source is determined after the process is performed, and if the Ez_Link is not determined, displaying an OSD guide indicating that the Ez_Link is not correctly connected. And automatically switching the mode according to the result after the search.

The Ez-Link source is another feature of EZ_AutoChk.

In step (b), (b1) if it is not Ez-Link, it is searched whether the V-seal is Ez-Linked, and if it is not Ez-Link, the Ez-Link source is set to "1". (B2) if the search result TV is in a power-on state, searching whether the EZ-Link source is "1" and if the EZ-link source is "1", In order to search where it is connected, the value of EZ_LINK_LASTRAM, which is a preset source RAM, is stored in EZ_LINKRAM, and then TV is turned off by sending a power off command to VRC to switch to the state indicated by EZ_LINKRAN. Searching for the next synchronization; and (b3) if there is no synchronization, the EZ_LINKRAM of the EZ_LINKRAM is transmitted if the synchronization is found by transmitting a power on command to the VRC to turn on the VRC again. EZ_LINKLAST information Storing in the RAM, clearing the EZ_Link source, and (b4) comparing the EZ-LINKRAM and the EZ_LINKLASTRAM after sequential switching to the state stored in the EZ_LINKRAM if the search result synchronization exists, and if the Ez_Link is the same, Another feature is that it comprises the step of displaying the OSD information that is not connected.

In step (b3), if there is no synchronization again as a result of the synchronization search, after sequentially switching to the state stored in the EZ_LINKRAM, comparing the EZ-LINKRAM and the EZ_LINKLASTRAM, if the same, and displaying the OSD instruction indicating that the Ez_Link is not correctly connected. It is to make another feature that is made by.

The step (d) compares the EZ-LINKRAM and the EZ_LINKLASTRAM and displays an OSD message indicating that the Ez_Link is not connected correctly if it is the same, and if it is not the same as the comparison result, transmits a power off command from the TV to the VAL. It is another feature that the method comprises the step of turning off the V-CAL and switching to the state indicated by the EZ_LINKRAN and then searching for the synchronization.

The present invention can provide convenience in use by automatically switching the video mode or the RF mode in the TV according to the VCR and the TV connection state when watching the VCR.

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 preferred embodiment of a TV mode automatic switching method according to the present invention will be described with reference to the accompanying drawings.

1-line data communication and Ez-Link configuration of the TV applied to the present invention is the same as the above-described Figures 1 and 2 will be omitted.

Figure 4 is a flow chart of the automatic mode switching method of the TV according to the present invention, Figure 5 is a flow chart showing the automatic determination process of the Ez-Link source of Figure 4, the present invention is not limited by the shown here. .

The automatic mode switching method of the TV according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.

First, as shown in FIG. 2, the control unit 1a of the TV 1 searches for power on information of the VCR 2 if it has been detected whether there is a data input from the VCR 2 (ST1, ST2).

If the result of the search in the ST2 is the VCR 2 power on information, the control unit 1a of the TV 1 searches for whether the TV 1 is currently on, and if it is on, EZ_AutoChk. Search for whether is "1" (ST3, ST6). If it is off, perform TV 1 power on and then search whether EZ_AutoChk is "1" (ST4, ST6).

If the result of the search in ST2 is not VCR (2) power on information, it is searched whether it is VCR (2) playback start information. If it is VCR (2) playback start information, it is searched whether EZ_AutoChk is “1” (ST5, ST6).

If the search result EZ_AutoChk is "1" in ST6, the Ez_Link source is recognized as not determined, and then the automatic determination of the Ez-Link source is performed as shown in FIG. 5 (ST7).

That is, as shown in Fig. 5, the controller 1a of the TV 1 searches for Ez-Link with the VCR 2 and sets EZ-AutoChk to "1" if it is not Ez-Link ( ST7-1 and ST7-2), if Ez-linked, it is searched whether TV 1 is powered on (ST7-3).

As a result of the search in ST7-3, if the TV 1 is in a power-on state, it is searched whether EZ-AutoChk is "1" (ST7-4).

If EZ-AutoChk is "1" in the search result of ST7-4, the TV1 stores the value of EZ_LINK_LASTRAM, which is a preset source RAM, in EZ_LINKRAM to search where the VCR 2 is connected to the TV 1. Transmits a power off command to the VCR 2 to turn off the VCR 2 (ST7-5 and ST7-6).

EZ_LINKRAM Source type 0 RF3 One RF4 2 Video 1 … … N Video (N-1)

Subsequently, the controller 1a of the TV 1 switches to the state indicated by EZ_LINKRAN as shown in Table 1 above, and then searches for synchronization (ST7-7, ST7-8).

If the VCR 2 is turned off and there is no synchronization, the controller 1a of the TV 1 transmits a power on command to the VCR 2. After turning on the VCR 2, synchronization is searched again (ST7-9 and ST7-10).

If the VCR 2 is turned on in the search result of ST7-10 and there is synchronization, the information of EZ_LINKRAM as shown in Table 1 is stored in EZ_LINKLASTRAM, and the EZ_AutoChk is cleared to "0". (ST7-11).

If there is a synchronization of the search results in the ST7-8 and if there is no synchronization of the search results in the ST7-10, the EZ-LINKRAM and the EZ_LINKLASTRAM are compared after sequentially switching to the state stored in the EZ_LINKRAM as shown in Table 1 above. ST7-12, ST7-13).

If the result of the comparison in ST7-13 is different, the processes of ST6 to ST12 are repeated, and if it is the same, an OSD instruction indicating that Ez_Link is not connected correctly is displayed (ST7-14).

After performing the automatic determination of the Ez_link source in the ST7, it is searched whether the EZ_AutoChk is "1", and if it is not "1", the OSD guidance indicating that the Ez_Link is not correctly connected is displayed (ST8, ST9).

If the search result EZ_AutoChk is not "1" in ST6 or the search result EZ_AutoChk is "1" in ST8, the current TV 1 is searched for the same status as EZ_LINKLASTRAM. The state is switched to (ST10, ST11).

As described above, the automatic mode switching method of the TV according to the present invention has the effect of providing convenience in use by automatically switching the video mode or the RF mode in the TV according to the VCR and the TV connection state when watching the VCR. have.

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 (5)

In the automatic mode switching method of the TV (TV) and VCR (VCR), (a) searching whether the Ez_Link source is determined when the TV is powered on; (b) if the Ez_Link source is not determined as a result of the search, performing an automatic determination process of the Ez_Link source; (c) re-searching whether the Ez_Link source is determined after performing the automatic determination process of the Ez_Link source and displaying an OSD guide indicating that Ez_Link is not correctly connected if Ez_Link is not determined; (d) if the Ez_Link source is determined as a result of the re-search, searching for whether it is equal to the current state of the EZ_LINKLASRRAM of the TV, and automatically switching modes according to the result. The method of claim 1, The mode of the TV automatic switching, characterized in that the Ez-Link source is EZ_AutoChk. The method of claim 1, Step (b) is (b1) searching whether the VRC is Ez-Linked and setting the Ez-Link source to "1" if it is not Ez-Link, and searching if the TV is powered on if Ez-linked. Wow; (b2) If the search result TV is in a power on state, the EZ-Link source is searched for "1", and if the EZ-link source is "1", a search is performed to find out where the VRC is connected to the TV. Storing a value of the set source RAM EZ_LINK_LASTRAM in the EZ_LINKRAM, transmitting a power off command from the TV to the V-CAL to turn off the V-Cal, switching to the state indicated by the EZ_LINKRAN, and searching for synchronization; (b3) If there is no synchronization as a result of the search, transmit a power on command to the VRC to turn on the VRC, and then search for the synchronization again and store the information of EZ_LINKRAM in the EZ_LINKLASTRAM if the synchronization exists. Clearing the EZ_Link source; (b4) if the search result is synchronized, the sequential switching to the state stored in the EZ_LINKRAM is performed, and then, if the EZ-LINKRAM is compared with the EZ_LINKLASTRAM, if the same is displayed, an OSD instruction indicating that the Ez_Link is not properly connected is displayed. TV automatic mode switching method. The method of claim 2, In step (b3), if there is no synchronization again as a result of the synchronization search, after sequentially switching to the state stored in the EZ_LINKRAM, comparing the EZ-LINKRAM and the EZ_LINKLASTRAM, if the same, and displaying the OSD instruction indicating that the Ez_Link is not correctly connected. Automatic mode switching method of the TV, characterized in that made by. The method of claim 1, Step (d) compares the EZ-LINKRAM and the EZ_LINKLASTRAM and displays an OSD message indicating that the Ez_Link is not connected correctly if it is the same; If it is not the result of the comparison, the TV to transmit a power off (power off) command to the V-CAL off, after switching to the state indicated by the EZ_LINKRAN characterized in that it comprises the step of searching for synchronization TV automatic mode switching method.