KR19990001706A - How to set the reservation of VES video cassette recorder - Google Patents

Abstract

The present invention relates to a reservation setting method of a VS video cassette recorder that displays channel information when a reserved recording is set in a VCR of a VS (voltage synchronous) tuning method. When a channel setting key signal is input in an initial state of a video cassette recorder, A first step of sequentially tuning each channel of a broadcast signal received from the outside, and storing each channel name corresponding to each input channel according to a user's operation whenever each channel is tuned; and each channel and each channel A second step of displaying the stored channel information on a menu screen when a reserved recording setting key signal is input while channel information corresponding to a channel name corresponding to a channel name is stored; and when a channel to be reserved recorded on the channel information menu screen is selected, Saves the selected reserved recording channel and simultaneously turns off the channel information menu screen. And a fourth step of displaying a menu setting screen for the selected reserved recording channel, and if the reservation information for the selected reserved recording channel is input, storing the same, and then turning off the menu setting screen.

Description

How to set the reservation of VES video cassette recorder

The present invention relates to a channel setting method of a video cassette recorder (hereinafter referred to as a VCR), and in particular, a reservation setting method suitable for setting a reserved channel at the time of program reservation in a VCR using a voltage synchronizing (VS) tuning method. It is about.

In general, a channel auto tuning function for automatically searching for a broadcast signal received by a TV or VCR for each channel provides convenience of use, and this channel auto tuning function is provided by a broadcast signal input from all broadcast channels. By determining whether a channel is used or not and storing the channel to which each broadcast signal is input, the user switches up and down only the channels stored in the memory when switching channels, that is, when the channel is up or down. It is a function to facilitate.

On the other hand, channel automatic tuning can be divided into FS (Frequency Synchronizing) and VS (Voltage Synchronizing). In FS, AFT (Automatic Fine Tunning) is used to tune the tuner of the receiver to the carrier frequency of each channel. Fine adjustment) voltage is adopted.

That is, when the PLL data for tuning the frequency of each channel is stored in the internal memory of the microcomputer of the receiving apparatus, and the user selects a predetermined channel by dialing, the microcomputer sends the PLL (Phase Lock Loop) data of the selected channel to the tuner. Is authorized.

A phase locked loop is formed in the tuner to control the oscillation frequency of the voltage controlled oscillator according to the PLL data, thereby receiving the frequency signal of the channel selected by the user.

On the other hand, in the VS method, the band (VHF LOW, VHF HIGH, UHF) switching voltage is selected, and the tuning voltage of the tuner is changed while increasing the tuning voltage from the reference tuning voltage by a predetermined step unit, and the broadcast signal of the tuner is intermediate. A method of finely changing the tuning voltage in accordance with the AFT voltage of the intermediate frequency signal by frequency processing is employed.

That is, if the video signal is separated from the broadcast signal of the set channel and the number of syncs separated from the video signal is included in the number of syncs corresponding to the normal broadcast signal, the PWM (pulse width modulation) signal is gradually increased. After that, the channel is set and stored according to the AFT curve that maintains the local oscillation frequency of the tuner, or the PWM is gradually increased by recognizing the AFT high voltage to detect and synchronize the channel to set and store the channel.

Unlike the FS system, the channel setting function in the conventional TV or VCR using the VS tuning system stores the tuned channel in a channel desired by the user, so there is no concept of a fixed channel, so that the set channel and the broadcasting program differ for each user. .

Therefore, in the VS-type VCR, when a user sets a reserved recording for a broadcast program, it is inconvenient to search for each channel to check whether the channel is desired and then set a reserved channel.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and in a VCR of a VS system, a user inputs channel information for each channel automatically tuned in, and thus, each channel can be easily distinguished by displaying channel information when setting reserved recording. An object of the present invention is to provide a reservation setting method of a VS video cassette recorder.

In order to achieve the above object, according to the present invention, when a channel setting key signal is input in an initial state of a video cassette recorder, each channel of a broadcast signal received from the outside is sequentially tuned, and a user operation is performed each time the channel is tuned. According to the first step of storing the channel name corresponding to each channel input according to the step, if the reserved recording setting key signal is input while the channel information of each channel and the channel name corresponding to each channel is stored, the stored channel information In the second step of displaying on a menu screen, when a channel to be reserved recording is selected on the channel information menu screen, the selected reserved recording channel is saved and the channel information menu screen is turned off at the same time, and the menu setting screen for the selected reserved recording channel is displayed. In a third step of displaying the selected reserved recording channel When the reservation information is input, stores it and then provides the reservation setting process of the setting menu, the VS system video cassette recorder comprising the step 4 for turning off the display.

1 is a block diagram of a main part suitable for performing a reservation setting method according to a preferred embodiment of the present invention;

2A is a diagram illustrating an example of a channel setting screen displayed when setting a reservation recording according to a preferred embodiment of the present invention;

2B is a view showing an example of a reservation recording setting screen displayed when setting a reservation recording according to a preferred embodiment of the present invention;

3A is a flowchart illustrating a channel tuning process according to a preferred embodiment of the present invention;

3B is a flowchart illustrating a process for setting reservation recording according to a preferred embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

10: key input unit 20: micom

30: memory 40: tuner

50: OSD unit 60: Image signal processing unit

70: monitor

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings.

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

1 is a block diagram of a main part suitable for performing a reservation setting method according to an exemplary embodiment of the present invention, and includes a key input unit 10, a microcomputer 20, a memory unit 30, a tuner 40, and an image. The signal processor 50, the OSD unit 60, and the monitor 70 are included.

Referring to the drawings, the key input unit 10 is composed of key metrics and includes a plurality of keys such as channel selection keys and numeric keys according to channel selection, and a microcomputer for describing key signals corresponding to a user's key operation described later. Applied to (20), it detects and outputs a key signal carried on an infrared carrier wave from a remote controller using a remote controller that can be input at a remote location.

The microcomputer 20 controls the overall operation of the VCR. When the signal for the channel selection key and the number key according to the channel selection is input from the key input unit 10, the microcomputer 20 integrates a DC voltage obtained by integrating the PWM signal corresponding to the input channel. Output to tuner 40.

Accordingly, the tuner 40 tunes a broadcast signal received through the antenna according to a change in the DC voltage output from the microcomputer 20, and tunes the broadcast signal of the tuned channel to the microcomputer 20 and the video signal processor 50. The video signal processor 50 displays the video signal for the tuned channel and the OSD menu screen to be described later on the monitor 70 through a predetermined conversion process.

On the other hand, in the VS-based broadcasting system, information on a corresponding channel such as a broadcaster name is inserted into a broadcast signal for each frequency. The channel information is not inserted into all broadcast signals, but only some broadcast signals. Each channel becomes difficult to distinguish easily.

Therefore, when the broadcast signal is tuned by the tuner 40, the microcomputer 20 monitors the channel setting menu screen as shown in FIG. 2A to drive the OSD unit 60 and input channel information about the tuned channel. 70).

Accordingly, the user inputs channel information on the tuned broadcast signal, that is, a broadcaster name, with reference to the displayed channel setting menu screen, and the microcomputer 20 stores the channel information input from the user in the memory unit 30. After turning off the currently displayed channel setting menu screen, the next channel is tuned.

As described above, the microcomputer 20 displays the channel setting menu screen as shown in FIG. 2A for all channels selected from the tuner 40 and receives the channel information from the user and stores the channel information in the memory unit 30.

3A is a flowchart illustrating a channel tuning process according to a preferred embodiment of the present invention, and the channel tuning process described above with reference to the drawings is described in detail as follows.

When the channel setting key signal is input to the key input unit 10 in the initial state in which each broadcasting channel is not tuned to the VS system VCR (101), the broadcasting signal of each channel is changed by a change in the tuning voltage applied from the microcomputer 20. The tuner 40 is detected (step 103), and the OSD unit 60 displays the channel setting menu on the monitor 70 based on the control signal of the microcomputer 20 (step 105).

At this time, when the user inputs the information on the tuned channel, that is, the broadcast program name by referring to the menu screen displayed on the monitor 70 (step 107), the input information is stored in the memory unit 30 and the microcomputer ( By the control of 20), the channel setting menu screen is turned off (step 113).

If the channel information is not input from the user in step 107 and the preset time elapses (step 109), the currently displayed channel setting menu screen is turned off (step 111) and the next channel is detected. .

Meanwhile, if channel information is stored in the memory unit 30 in the above-described step 113 and the next channel is detected by the tuner 40 (step 115), the channel set by repeating the operation after the above-described step 105 is performed. After receiving the information from the user and continue to store in the memory unit 30, if no other channel is detected any more, the overall operation of the above-described channel setting is terminated.

Through the above-described process, while the channel for each broadcast signal and the channel information input by the user are stored in the memory unit 30, the user generates a reserved recording setting key signal for program reservation recording through the key input unit 10. Then, the microcomputer 30 reads each channel and the channel information stored in the memory unit 30 and displays them on the monitor 70 through the OSD unit 60.

When the user selects a channel to be reserved recording by referring to the channel displayed on the monitor 70 and the respective channel information, the microcomputer 20 stores the selected channel in the memory unit 30 and then displays the currently displayed menu. The screen is turned off, and the reserved recording setting menu screen shown in FIG. 2b is displayed on the monitor 70 through the OSD unit 60.

Accordingly, the user inputs the reservation recording setting information including the recording time and the recording speed by referring to the displayed reservation recording setting menu screen.

3B is a flowchart illustrating a process for setting reservation recording according to a preferred embodiment of the present invention. Hereinafter, the reservation recording setting process described above with reference to the accompanying drawings will be described in detail.

When the reserved recording setting key signal is generated from the key input unit 10 by the user (step 201), the respective channels and channel information stored in the memory unit 30 are controlled by the microcomputer 20 to control the OSD unit 60. Is displayed on the monitor 70 (step 203).

In this case, when the user selects a channel to reserve recording by referring to the channel information displayed on the monitor 70 (step 205), the selected channel is stored in the memory unit 30 by the microcomputer 20, and the current display is displayed. The menu screen is turned off (step 211).

If a predetermined time elapses while the user does not select a channel in step 205 (step 207), the channel information displayed on the monitor 70 under the control of the microcomputer 20 is turned off. (Step 209), the presence or absence of the reserved recording setting key signal is detected again.

Meanwhile, after the channel selected by the user in the above-described step 211 is stored in the memory unit 30, the OSD unit 60 is driven again based on the control signal of the microcomputer 20 to display the reserved recording setting menu screen. In step (213), an input standby state for reservation recording setting information including a recording date, a recording time, and the like is entered (step 215).

At this time, if the reservation setting information is not input for a predetermined time (step 217), the reserved recording setting menu screen currently displayed under the control of the microcomputer 20 is turned off (step 219), and the reserved recording setting key signal in the initial state is set. The presence of input is detected.

If the reservation setting information is input by the user in step 215 described above, the microcomputer 20 stores the input information in the memory unit 30 and turns off the reservation recording setting menu screen displayed on the monitor 70. By doing so (step 221), the overall process relating to the above-described reserved recording setting is terminated.

Therefore, according to the present invention, the user can easily distinguish each channel when setting reservation recording by inputting information for each channel.

As described above, according to the present invention, when setting a reserved recording by inputting / saving information for each channel selected by a user in the VS tuning system, the reserved recording can be easily set only by referring to the stored channel information without checking the broadcasting program for each channel. It can have the effect of improving the ease of use of the product and the performance of the product.

Claims (5)

In the video cassette recorder using the VS method, a method of setting a reservation recording, When a channel setting key signal is input in the initial state of the video cassette recorder, each channel of a broadcast signal received from the outside is sequentially tuned, and each channel is tuned to correspond to each channel input according to a user operation. A first step of storing channel names respectively; A second step of displaying the stored channel information on a menu screen when a reserved recording setting key signal is input while the channel information corresponding to each channel and a channel name corresponding to each channel is stored; A third step of, when the channel to be reserved recording is selected on the channel information menu screen, saving the selected reserved recording channel, turning off the channel information menu screen, and displaying a menu setting screen for the selected reserved recording channel; And a fourth step of storing the reservation information on the selected reserved recording channel and then turning off the menu setting screen. The method of claim 1, wherein the first step, A first step of detecting a channel of the broadcast signal received from the outside when the channel setting key signal is input; If the channel is detected, displaying a channel setting menu screen; A third process of storing the channel and the channel information, turning off the channel setting menu screen, and detecting a next channel when the channel information on the detected channel is input; And if the next channel is detected, further comprising a fourth step of repeatedly performing the operation after the second step. The method of claim 2, wherein the third process comprises: If the channel information is not input within a predetermined time period, turning off the displayed channel setting menu screen. The method of claim 1, wherein the third step, And turning off the displayed channel information menu screen if the channel to be reserved is not input within a predetermined time period. The method of claim 1, wherein the fourth step, If the reservation information of the selected channel is not input within a predetermined time period, turning off the displayed menu setting screen.