KR960006534B1 - Auto monitoring apparatus of sub-screen - Google Patents

Abstract

The apparatus comprises a recording detection unit for detecting whether there is a recording, based on an AND operation with inputs of switching of broadcasting channel, and the presence of recording; a reservation decision unit for recording broadcast programs on the time reserved; a system controller for controlling overall operations according to the output of the recording detection unit; a comparison unit for comparing channel data from output ports of the system controller; an NOT-OR operation with inputs of data of the comparison unit and data of the reservation decision unit; and an OR operation unit for controlling an operation of a sub-screen processor based on the data from the NOT-OR unit and the data from the record detection unit.

Description

Automatic monitoring device of sub-screen during broadcast recording

1 is a block diagram of a television receiver having a general sub picture function.

2 is a block diagram showing an automatic monitoring apparatus of a sub picture during broadcast recording according to the present invention.

3 is a flowchart illustrating an automatic monitoring operation according to a broadcast channel switching during broadcast recording according to the present invention.

4 is a flowchart showing an automatic monitoring operation of a sub-screen during reserved broadcast recording according to the present invention.

* Explanation of symbols for main parts of the drawings

10: recording determination means 20: reservation determination means

30: system control 40: comparison means

50: logical sum negation means 60: logical sum means

The present invention relates to an apparatus for automatically monitoring a sub-screen during broadcast recording, and more particularly, to automatically monitor a sub-screen during recording when a broadcast is displayed on the sub-screen when recording a broadcast different from the broadcast channel being viewed. Relates to a device.

In general, the sub picture function monitors another screen on the receiver in addition to the main screen selected from the tuner of the TV so that the viewer can simultaneously watch several broadcasts.

In addition, TVCR refers to a combination of television and video by combining a television (TV) and a video cassette record (VCR) in one system.

It is common to use a combination of the above-described sub picture and TVCR functions.

1 is a block diagram of a television receiver having a sub picture function produced by the prior art, which includes an antenna 1 for receiving broadcast waves and a tuner for picking up a main picture broadcast and a sub picture broadcast from this antenna, respectively. 2) (3), an intermediate frequency circuit section (4) (5) for processing a video signal and an audio signal from a broadcast signal picked up from the tuner (2) (3), and the intermediate frequency circuit section (4) (5) The PIP (sub picture) module 6 for processing the video signal output from the RG B signal and the sub picture output from the PIP module 6 are chroma-processed with the RG B signal by the data of the control unit 7. The video chroma processing unit 8 and the video amplifying unit 9 for outputting the sub-screen output from the video chroma processing unit 8 to the medium-to-high receiver CRT.

As described above, in a television that does not have a sub picture function for simultaneously watching two or more channels, if a viewer wants to record a broadcast channel different from the broadcast channel being watched, the broadcast recording of another channel cannot be confirmed on the sub screen. There was a limitation to install a separate monitor to solve this problem.

In addition, even in a TV having a sub picture function, in order to check a screen state recorded on another broadcasting channel, a function of loading by using a remote controller or the like is operated, and accordingly, it is troublesome to adjust a channel to be monitored.

Therefore, the present invention was created to solve the above-mentioned disadvantages and inconveniences. The present invention provides a sub-screen when recording a broadcast to automatically display a recorded broadcast on a sub-screen when a broadcast is different from the broadcast channel being watched. Its purpose is to provide an automated monitoring device.

In order to achieve the above object, the apparatus for automatically monitoring a sub-screen during broadcast recording according to the present invention detects whether or not recording is performed based on the logical multiplication of the data according to whether the channel is switched by the key input device and the data on the recording. Reservation determination means for reserving the broadcast time, and then outputting predetermined data to perform broadcast recording at this time, and a system controller for controlling the overall operation by the data output from the recording decision means. And comparing means for comparing channel data output from the output ports O1 and O2 of the system controller, and logical sum negating means for processing the result value data and the data output from the reservation determining means by the comparing means. The data output from the logical sum negating means and the result data determined by the recording determining means. It is characterized by consisting of a logical sum means for controlling whether or not the sub-screen operation based on the supplied.

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

FIG. 2 is a block diagram showing an automatic monitoring apparatus of a sub-screen during broadcast recording according to the present invention. FIG. 3 is a flowchart showing an automatic monitoring operation according to switching of a broadcasting channel during broadcasting recording. This is a flowchart showing the automatic monitoring operation of the screen.

In FIG. 2, the recording determining means 10 determines whether data is inputted according to the broadcast channel switching in the key input device 1 and whether recording is performed, and if the data corresponding thereto are inputted, it is logically ANDed. It is configured to supply to the input port (I1) of the system controller 30, the recording determination means 10 is composed of AND (AND).

The reservation judging means 20 is arranged to reserve the broadcast time and output data for performing the speed recording when the preset time is reached. The reservation recording device of the reservation judging means 20 includes a timer, a storage memory, and a reservation. It includes a comparison part that compares time and current time.

The system controller 30 is configured to receive the data output from the recording determination means 10 and select the main screen and the sub-screen by the data output from the output ports O1 and O2 based on the data. Then, the overall operation is controlled so that the sub-screen for performing broadcast recording is displayed on the sub-screen of the receiver.

The comparison means 40 compares the channel data of the main screen and the sub-screen output from the output ports O1 and O2 of the system controller 30, and the high level if the same channel and the low level if the channels are different will be described later. It is configured to supply to the input terminal 2 of the logical sum negating means 50, and the comparing means 40 is composed of a comparator COMP1.

The logical sum negating means 50 receives the data output from the comparing means 40 and the data output from the reservation determining means 20 and supplies them to the input terminal 2 of the logical sum means 50 described later based on the data. The logical sum negating means 50 is composed of a NOR gate NOR.

The logical sum means 60 is operated by the data output from the logical sum negation means 50 and the data output from the output port O3 of the system controller 30 so as to interrupt the operation of the sub-screen processing unit 7. The logical sum means 60 is composed of an OR gate.

The present invention according to the above configuration will be described as a whole with reference to Examples.

The viewer supplies power to watch the broadcasting channel (eg 7CH) and performs the overall system operation using the remote control.

3 and 4, broadcast channel (e.g., 7CH) data is supplied from the output port O1 of the system controller 30 to the main screen tuning data processing section 2. In FIG.

Tuning data supplied to the main screen tuning data processing unit 2 passes through a main screen tuner 3 and a main screen processing unit 4, wherein a main screen corresponding to a broadcasting channel (eg, 7CH) is displayed on the receiver. Is displayed.

For example, as shown in step S1 of FIG. 3, the viewer determines whether to record a broadcast channel (eg, 7CH) that is being broadcast.

If the recording signal is not input (NO), the broadcast for main screen channel switching is watched as in step S5.

Subsequently, when the recording signal is input (YES), the logical product AND of the recording determination means 10 supplies the high level signal to the input port I1 of the system controller 30.

Subsequently, as shown in step S2, the main screen channel (eg, 7CH) is switched to the subscreen broadcast channel (eg, 9CH) and output through the output port O2 of the system controller 30.

The sub-screen channel (eg, 7CH) output from the output port O2 of the system controller 30 performs recording and simultaneously performs sub-screen tuning data processing unit 5, tuner 6, and sub-screen processing unit 7. Supplied to.

Subsequently, when the viewer tunes to a broadcast channel (eg, 9CH) as in step S3, the main picture channel (eg, 9CH) data outputted from the output port O1 of the system controller 30 is converted to the main screen tuning data processing unit ( 2) and the tuner 3 and main screen processing section 4 are supplied.

In this case, since the broadcast channel data output from the output ports O1 and O2 of the system controller 30 are different channel data, the low level signal is input from the comparator negation means 50 by the comparator COMP1 of the comparator 40. Supply to the terminal (2).

At this time, when the recording signal is applied, the low level signal is inputted to the input terminal 1 of the logical sum negating means 50 by the reservation determining means 20.

Therefore, by combining the high level signal output from the logic sum negating means 50 and the high level signal output from the output port O3 of the system controller 30, this is a sub-screen of the combined high level signal from the logic sum means 60. It is supplied to the processing part 7.

The subscreen processing unit 7 is operated to turn on the subscreen as in step S4.

Therefore, the viewer watches the broadcast channel (eg 9CH) on the screen and displays the broadcast channel (eg 7CH) being recorded on the sub-screen.

4 is a flow chart illustrating an operation process according to the reserved recording of the present invention. As shown in step S1, the viewer determines whether the current broadcasting channel (eg, 7CH) is recorded, and the reserved recording signal is not input. In the case of (NO), only the broadcast channel (eg 7CH) currently being watched is watched.

Subsequently, when the reserved recording signal is input (YES), as in step S2, it is checked whether the main picture broadcast channel and the reserved recording channel are the same, and if it is the same as the reserved channel, normal operation is performed.

Contrary to the above, if it is not the same as the reserved channel, the low level signal is supplied from the comparing means 40 to the OR sum means 50 from the comparison means 40 and the high level signal outputted from the OR sum means 50 is received. The sub-screen is selected by supplying to the logical sum means 60.

Subsequently, the high level signal outputted from the logical sum means 60 turns on the sub picture processor 7 as shown in step S4 to display the reserved recording broadcast tuned from the tuner 6 on the sub picture.

Viewers can watch other recordings while watching the main screen.

In addition, the present invention is not limited to the above embodiments and can be modified without departing from the technical gist of the present invention.

As mentioned above, the present invention has an advantage of automatically displaying a recorded broadcast on a sub-screen when the user wants to record a broadcast that is different from the broadcast channel being viewed.

Claims (3)

Recording judgment means for logically multiplying the data according to whether or not the channel is switched by the key input device with the data on whether to record or not, and recording based on the recording time. Reservation determination means for outputting predetermined data, a system controller for controlling an overall operation by the data output from the recording determination means, and comparison means for comparing channel data respectively output from an output port of the system controller; A logical sum negating means for processing the result value data by the comparing means and the data output from the reservation determining means, the data output from the logical sum negating means and the result data determined by the recording determining means are supplied based on this; It is composed of a logical sum means that controls the operation of the screen processor. Automatic monitoring device of the sub-screen during broadcast recording. 2. The apparatus of claim 1, wherein the recording determination means (10) is configured to logically multiply the data with the recording determination data according to the switching of the broadcasting channel in the key input device (1). 2. The apparatus of claim 1, wherein the comparing means 40 compares the channel data of the main picture and the sub picture output from the output ports O1 and O2 of the system controller 30 to the logical sum negating means 50. Automatic monitoring device of the sub-screen during broadcast recording, characterized in that configured to output data.