KR0140371B1 - Television broadcasting mode display method - Google Patents

Abstract

A method for displaying a television broadcast mode as a sign is described, comprising: discriminating the broadcast signal for a first time period to identify whether the currently received television broadcast signal is a stereo or audio multicast signal; When the determined broadcast signal is stereo, the first code is displayed, and in the case of voice multiple broadcasting, the second code is displayed on the monitor for a second time period.

In this case, the broadcast mode display code is displayed on the monitor every time the power is applied or the channel is changed, so that convenience in use can be pursued.

Description

How to display TV broadcast mode

1 is a schematic block diagram of a color television having a function of displaying it on a monitor using an OSD in a stereo or voice multiple broadcasting mode according to the present invention;

2 shows an example of monitor display when the television broadcasting mode is the mono stereo and audio multicast mode;

3 is a control flowchart for controlling the OSD in each stereo, voice multiple broadcast, and mono broadcast.

* Explanation of symbols for main parts of the drawings

1: remote control, 3: microprocessor,

13: Monitor, 14: Audio quasi-channel tuning device.

The present invention relates to a television broadcast mode display method for identifying as an OSD (on-screen display) whether a broadcast received from a color television or video cassette recorder is a stereo or audio multiplex broadcast every channel selection.

Conventional television or video cassette recorder judges that the received broadcast is a stereo or voice multiple broadcast, and informs the user as a light emitting diode, or when the TV station is stereo or voice multicast, the corresponding code [S], voice In case of multicast The sign is displayed for only a few seconds.

However, the method of transmitting a code indicating a stereo or audio multicast signal by the television station itself is displayed only at the beginning of these broadcasting signals, so that the user is watching the stereo broadcast and then the stereo broadcasting channel again. There was no stereo display at the time of selection, so it could not be easily identified. Also, the display method of the light emitting diode can easily identify the stereo or voice multicast display by the light emitting diode because the user actually concentrates his gaze on the TV screen. There was a defect that could not be done.

Accordingly, the present invention has been invented in view of such a situation, and it is possible to easily identify the user by displaying as a sign on the monitor whether the broadcast mode received at every TV power-up or channel conversion is a stereo or audio multicast. It is an object of the present invention to provide a method for displaying a television broadcast mode.

The present invention for achieving this object is a method for displaying a television broadcast mode as a sign, which discriminates the broadcast signal for a first time to identify whether the currently received television broadcast signal is a stereo or audio multicast signal. Making a step; And displaying the first code on the monitor for a second time when the determined broadcast signal is stereo or the second code on voice multicast. It is desirable that they disappear after being displayed on the monitor for a second time only when the television is powered on, or after being displayed on the monitor for a second time every time the television channel is switched.

Here, the second time for displaying the code for the broadcast mode on the monitor is preferably a sufficient time for the user to recognize, for example, may be about 5 seconds, and continue to be displayed during the time of watching the television broadcast of the channel. It can also be.

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

1 is a schematic block diagram of a color television having a function of displaying a broadcast reception status as a code by an OSD according to the present invention, wherein a remote control signal input from the remote control 1 is received by the remote control module 2 and then the micro It is input to the processor 3.

At this time, the microprocessor 3 receives the key signal from the remote control module 2 or the key matrix 4 to perform various functions of the television. If a channel tuning key (not shown) is pressed from the remote control 1 or the key matrix 4, the microprocessor 3 causes the phase lock loop signal (P voice multiplex) to control the tuner 5. A channel tuning device 14 is generated to cause the tuner 5 to tune the television broadcast signal received via the GG.

The signal tuned by the tuner 5 is applied to the acoustic amplifier 8 and the chroma IC 9 through the intermediate frequency amplifier 7, and the acoustic signal is output to the outside through the speaker 10 and the color signal R , G and B are output from the chroma IC 9 and applied to the video processing circuit 11.

In this case, the video processing circuit 11 performs video processing on the input television broadcast color signal and the on-screen display color signal to the driver 12 to display the television broadcasting and / or on-screen display characters on the monitor 13. Bar, the voice multiple channel selecting apparatus 14 provides the microprocessor 3 with a stereo or voice multiple broadcast under the control of the microprocessor 3 and displays it as a respective code on the monitor 13. However, this is common in conventional color televisions, which is essential in the present invention to indicate whether a broadcast of a currently received channel is a stereo or audio multiplexing signal at every power-on or channel conversion. .

FIG. 2 shows a display example of a monitor in which a code for displaying mono, stereo, or voice multiplexing is displayed on the monitor 13 upon power-up or channel conversion according to the present invention.

FIG. 2A is an example of the display when there is no stereo or audio multiple broadcast signal (ie, mono broadcasting). In this case, only a television screen may appear instead of no sign on the monitor 13.

However, when a stereo or voice multiple broadcast is received, as shown in FIG. 2 (B) or (C), a stereo broadcast code [S], or a voice multiple broadcast code Is displayed. It is important here that when the voice multi-channel channel selector 14 shown in FIG. 1 detects a signal, a signal for preventing a minimum error must be continuously introduced for several seconds (for example, 5 seconds) to determine that there is a signal. It is possible to prevent the malfunction caused by.

Here, the time when the stereo or voice multiple code is displayed may be long enough for the user to recognize it (for example, for 5 seconds) or until the channel is turned off (until channel conversion). There is also.

3 is a control flowchart for displaying a broadcast mode on a monitor every time the power is applied or the channel is changed according to the present invention. When the power is turned on, the microprocessor 3 moves the program from step S101 to step S102. If the television broadcast mode tuned by the tuner 5 is a stereo broadcast, the stereo signal is applied to the microprocessor 3 from the audio multi-channel tuning device 14.

At this time, the microprocessor 3 determines whether the stereo signal is input for a first time (for example, about 5 seconds), in order to prevent malfunction due to temporary noise.

Therefore, when the stereo signal is continuously input for the first time, the program proceeds from step S103 to step S104, where the current broadcast mode is shown in the monitor 13 as shown in FIG. A symbol [S] is displayed. However, this indication may appear on the monitor for a second time (eg 5 seconds). However, such a sign may be displayed until the channel is converted.

Therefore, after the stereo broadcast code is displayed for a predetermined time, the process proceeds from program step S105 to step S106, and this code is deleted from the monitor 13, and only a general television screen is displayed. When the stereo signal is not continuously input for the first time as a result of the determination in step S103, the stereo broadcast code does not appear on the monitor 13 (step S107).

On the other hand, if it is determined in step S102 that the currently input signal is a voice multiple broadcast signal instead of a stereo signal, the program proceeds from step S108 to step S109. As described above, the voice multiple signal is continuously input. If the program proceeds to step S110, the monitor 13 has a code for multicasting. Is displayed.

This multicasting code is displayed on the monitor 13 for the second time and disappears as described above (steps S111 and S112). However, if the voice multiple broadcast is not input for a predetermined time, there is no display of the voice multiple broadcast code on the monitor 13 (step S113).

In the case of mono broadcasting, the program returns from step S114 to step S102, where no sign is displayed on the monitor.

By the way, when the channel is switched when the channel is broadcasted, the program returns from step S115 to step S102 to repeat the above-described process. However, if the power is turned off while the channel is not switched and no stereo or audio multiplexing signal is input, all operations are stopped, but if the power is not turned off, the program repeats the above-described operation at step S116. Return to step S102.

As described above, the present invention has a feature that the user can easily know what broadcast mode the current received broadcast is by displaying the stereo or voice multi-broadcast mode on the monitor every time the power is applied or the channel is changed.

Claims (5)

A method of displaying a television broadcast mode in which a state of a currently received broadcast signal is determined and a display corresponding thereto is displayed, the method comprising: determining a voice mode of a currently received television broadcast signal; And displaying the corresponding OSD on a monitor when the voice is multiple, and performing the OSD display for a lyrical time and then disappearing. The method according to claim 1, wherein the codes for the broadcast mode disappear after being displayed on the monitor for a second time only when the television is powered on. The method according to claim 1, wherein the codes for the broadcast mode disappear after being displayed on the monitor for a second time every time the channel of the television is switched. The method as claimed in claim 1, wherein the second time for displaying the broadcast mode code on the monitor is a sufficient time that a user can recognize. 5. The method as claimed in claim 4, wherein the second time period is continued until the television broadcasting of the corresponding channel ends.