KR20000001253U - VSI system with line control - Google Patents

Abstract

The present invention relates to a VSI system having a line control function. In the related art, when a VSI is in a power-off state when a cable box and a TV receiver are connected in this system, the signal on the cable box side cannot be transmitted to the TV receiver. There was a problem that the receiver side can not receive the signal of the cable box.

The present invention provides a control operation for switching the input selection switch unit 13 to the line side when the user has a line selection setting when the user turns off the power through the key input unit 11 so as to improve such a conventional problem. A microcomputer 12, a key input unit 11 for calling up the OSD screen through the microcomputer 12 and the OSD unit 14 and providing a line and RF setting input, a line of a cable box, and The present invention provides a VSI system having a line control function including an input selection switch unit 13 and the like which switch operation to selectively provide an RF output to the TV side.

The present invention can provide a line signal of the cable box in the TV receiver in the power off state of the VSI set to improve the problems caused by the V power off.

Description

VSI system with line control

The present invention relates to a video cassette recorder (hereinafter referred to as VCR) system having a line control function, which is particularly effective when an external device such as a cable box is connected to the VSI set side in such a system. Even when the power is off, the line signal on the cable box side can be connected to the TV receiver.

The VSI system is a device that records and plays back video / audio signals provided from various video sources (video camera, cable TV, airwave broadcasting, etc.).

In one example, a typical form of this VSIAL system is shown in FIG. 1.

Here, the microcomputer 31 for controlling the VSI system, the servo circuit 32 for driving control of the motor on the system deck side, the remote control unit 33a and the set side wirelessly connected to the remote control transmitter 33c The timer circuit 33 to which the key part 33b is connected, the audio circuit 35 which processes a voice signal in a system, etc. are provided.

In addition, the system includes a video circuit 37 for providing a recording signal to the tape side or processing a reproduction video signal from an RF signal provided from the tuner and the IF unit 38, and an audio signal during double speed reproduction on the system deck side. DMS (DMSS) unit 36 for controlling to provide a steady state is included.

The system also includes an on-screen unit 34 for setting on-screen settings such as texts / symbols on the screen or setting various guide messages, a tuner for synchronizing a signal received from an antenna and generating an intermediate frequency signal; The eye F section 38, a power circuit 39 for supplying system power, and the like.

In the prior art, an input / output video / audio jack stage connected to a camcorder, another BC or a cable box is provided, and connected to the cable box and the TV receiver side through the video / audio jacks.

For example, FIG. 2A illustrates a state in which signal lines between the cable box 5, the TV 3, and the VSI 4 are interconnected, wherein the RF signal RF and the line output from the cable box 5 are connected to each other. The signal L1 is connected to the VSI 4 and the TV 3, respectively, and the line output L2 of the VSI 4 is connected to the TV 3 side.

In this case, since the BCs 4 receive the RF signal from the cable box 5, the BCs have a worse reception state for the predetermined broadcast signal than the line.

In addition, FIG. 2B shows another state in which signal lines between the cable box 5, the TV 3, and the VSI 4 are interconnected. In this case, the RF signal RF output from the cable box 5 is On the TV 3 side, the line signal L1 is connected to the VSI 4 side, and the line output L2 of the VSI 4 is connected to the TV 3 side.

In this case, since the TV 3 is received as an RF signal, the TV 3 has a worse reception state for a predetermined broadcast signal than the line input.

In addition, the cable box 5 and the TV 3 are not connected without connecting the cable box 5 and the TV 3 and the VSI due to the burden of using the plurality of lines RF, L1 and L2 as described above. It is common to configure the system in a state where the TV 3 is disconnected from the cable box 5 because the line signal on the cable box 5 side, which is provided to the line L2, is disconnected when the VSI 4 is turned off. There was a problem that you cannot see the broadcast on the side.

The object of the present invention is to provide an input selector switch from the cable box on the VSI side so that the user can select the RF or line from the OSD screen so that the problem of the related art can be improved. Even in the state of the TV, the TV side can see the cable broadcasting signal of the cable box side, and the user can arbitrarily select the RF signal or the line signal so that a flexible use environment can be prepared.

The present invention particularly provides a microcomputer of a control operation in which the system switches the input selection switch unit to the line side and provides the TV side when the user has a line selection setting when the user turns off the power through the key input unit. Key input unit for calling up the OS screen through the computer and the OS unit and providing line and RF setting inputs, and an input selection switch unit for switching the cable box to selectively provide the TV and line outputs to the TV side. It is characteristic of VSI system with line control function.

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

1 is a system circuit block diagram of a conventional Video Cassette Recorder (VCR) system.

Figure 2a, 2b is a reference diagram showing the interconnection relationship between the conventional cable box and the VSIAL set and TV receiver side

3 is a system circuit block diagram of the present invention.

Figure 4 is an embodiment showing a line selection control procedure of the present invention

** Explanation of symbols on main parts of the drawing **

11.Key Input 12.Microcomputer

13. Input selector switch 14. OS D unit

100. Line selection control program

Figure 2 shows the main portion of the excitation circuit block of VSI system according to the present invention.

In the system, if the user has a line selection setting at the time of power-off through the key input unit 11, the microcomputer 12 having a control operation of switching the input selection switch unit 13 to the line side and providing the TV side to the line side; A key input unit 11 for calling the OSD screen through the 12 and the OS unit 14 and providing line and RF setting inputs, and switching to selectively provide the line and RF outputs of the cable box to the TV side. And an input selection switch section 13 for operating.

According to the present invention of the configuration, the system user calls a function menu screen through the OS unit 14 through the key input unit 11 as shown in FIG.

The function menu screen may be configured as shown in Table 1 below.

Function Selection 1. Custom Clock 2. Reservation recording / cancellation 3. Channel Customization 4. Tape Selection (Tape Remaining Time) 5. Input setting 1 to 5 Selectable end of selection function

When the user selects 5, the microcomputer 12 outputs the screen shown in Table 2 below through the OS.

The function menu screen may be configured as shown in Table 1 below.

Input selection at power off 1. RF2. Line 1/2 Select Function End Press Enter

Therefore, when the user selects the desired mode, the microcomputer 12 controls the input selection switch unit 13 to connect the RF signal CR and the line signal CL on the cable box side to the TV side.

In this state, even if the VSI power is turned off, the input selection switch unit 13 is connected to the TV side in a state of being connected to the RF or line side, so that the TV side can receive an RF or line signal from the cable box. In order to get better, it is better to select the line mode.

In addition, the above operation is performed by the microcomputer 12 together with the line selection control program 100 as shown in FIG. 4, which checks whether the system is in the power-off state and if the input selection is the RF side. If the input selection is the RF mode, the input of the input selection switch unit 13 is connected to the RF CR side, and when the input selection is not the RF mode, the input line is connected to the line CL side (steps 101 to 104).

The present invention can increase the convenience of such a system because it can selectively receive the RF signal and the line signal output from the cable box in the state of the VSI in the VSI system connected to the cable box, etc. It has an effect.

Claims (1)

In a VSI system including a system microcomputer, the system includes a control operation in which the input selection switch unit 13 is switched to the line side and provided to the TV side if the user has a line selection setting when the user turns off the power through the key input unit 11. A microcomputer 12, a key input unit 11 for calling up the OSD screen through the microcomputer 12 and the OSD unit 14 and providing a line and RF setting input, a line of a cable box, and A VRS system having a line control function characterized by a configuration including an input selector switch 13 or the like for switching to selectively provide an RF output to the TV side.