KR960005545A - V-Cal's two channel recording / playback device and its recording / playback method - Google Patents

Abstract

The present invention provides a V-channel two channel recording / playback apparatus capable of simultaneously recording and simultaneously or selectively playing two broadcast programs broadcasted at the same time on one video tape using two TV receivers, and recording and playback thereof. A method comprising: a broadcast signal input unit having two TV receivers for simultaneously inputting broadcast signals of different channels input through an antenna, and a control signal from a system control means based on a user's operation signal; According to the present invention, a switching unit for switching each broadcast signal input through each receiver in a predetermined unit to transmit each broadcast signal simultaneously in serial and a mixed two broadcast signal input from the switching unit in recording mode are predetermined. Amplify to a level, modulate it into a recordable magnetic signal, A signal processor which amplifies a video signal reproduced from a videotape through a playhead to a predetermined level and demodulates it into a displayable video signal in the playback mode, and outputs serially from the signal processor based on control signals from system control means. By discriminating the video signals for the two broadcasts according to the recognition information and constructing a signal decision unit that selectively or separately separates the video signals for the two broadcasts, thereby providing the same effect as having two VCRs. It is to improve the utilization efficiency of VCR.

Description

V-Cal's two channel recording / playback device and its recording / playback method

As this is a public information case, the full text was not included.

1 is a block diagram illustrating two channel recording / playback values of V-C in accordance with the preferred embodiment of the present invention.

2 is a flowchart showing a process of recording two channels of broadcast signals on a video tape according to the present invention;

3 is a flowchart showing a process of reproducing broadcast signals of two channels recorded on a video tape according to the present invention.

Claims (5)

In the recording / reproducing apparatus of V-Cal, which records a broadcast signal input through a TV receiver in a recording mode and plays back a program recorded on the video tape in a playback mode, comprising two TV receivers, Broadcast signal input means for simultaneously inputting broadcast signals of different channels input through an antenna; Based on the control signal from the system control means based on the user's operation signal to switch the video signal for each broadcast signal input through each receiver in a predetermined unit to transmit each broadcast signal simultaneously serially alternately Switching means; In the recording mode, the mixed video signals input from the switching means are amplified to a predetermined level, and then modulated into a recordable magnetic signal and provided to the recording head. Signal processing means for amplifying the reproduced video signal to a predetermined level and demodulating the video signal into a displayable video signal; Based on the control signal from the system control means, the video signals for the two broadcasts output from the signal processing means in serial are discriminated according to the recognition information, and each of the determined reversed phase signals can be selectively or separated and simultaneously displayed on the monitor. A VR recording / reproducing apparatus, comprising a signal determining means provided. The recording / reproducing apparatus of claim 1, wherein each video signal is alternately recorded by one track in field units. A recording method of a recording / reproducing apparatus of V-Cal which records a broadcast signal input through a plurality of TV receivers in a recording mode to a video tape, and plays back a program recorded on the video tape in a playback mode. Determining whether two channel recording modes are selected when a signal is input; If the two-channel recording is not selected as a result of the determination in the determining step, modulating the video signal for the broadcast signal input through the TV receiver into a magnetic signal and recording the same on a video tape; Alternately switching a video signal for a broadcast signal input through each TV receiver serially when two channel recording is selected in the determining step; 24. A method for recording an image of a V-CAL comprising the steps of alternately recording a video signal for each broadcast signal alternately input in a predetermined unit on a video track together with recognition information. 4. The video recording method of claim 3, wherein each video signal for each broadcast signal is alternately recorded one track per field on a video track of a videotape. A playback method of a recording / reproducing apparatus of V-Cal for recording a broadcast signal input through a plurality of TV receivers in a recording mode to a video tape, and playing back a program recorded on the video tape in a playback mode. Reproducing the video signal for the broadcast signal recorded on the videotape in the mode, amplifying to a predetermined level, and demodulating the original video signal for display; Checking whether the demodulated video signal is a video signal for two channels to determine whether a two-channel playback mode is selected if the demodulated video signal is a video signal for two channels; If the two-channel playback mode is selected as the determination result in the determining step, separating the two video signals based on the control signal from the system control means and outputting them to each monitor at the same time or outputting any one selected video signal to the corresponding monitor. Video playback method consisting of VRC. ※ Note: The disclosure is based on the initial application.