KR970050447A - Data recording and playback device of video cassette recorder - Google Patents

Abstract

The present invention relates to a data record reproduction apparatus of a video cassette recorder, comprising: a key input section (10) comprising a plurality of function keys; A video signal processing unit 200 for processing and outputting a video signal input from the outside to be recorded on a cassette tape; A synchronization detector 30 which detects and outputs a synchronization signal from the video signal; Outputs a timing signal, outputs data and an OSD signal according to a key signal input from the key input unit in a recording mode, and outputs an OSD signal according to an input information data signal in a reproduction mode, and first and second switching A controller 40 for generating a signal; An information zeta generator 60 for outputting information data corresponding to the data of the controller 40; A mixer unit 70 for mixing and outputting information data and control signals; In the recording mode, the output signal of the mixer unit 70 is applied to the control head CH, and the control unit 40 separates the control signal and the separated information data from the control signal of the control head CH in the playback board. A switching unit 80 applied to each; And an OSD unit 50 for mixing and outputting a text signal with a video signal, and inserting information about a video signal to be recorded on the cassette tape into the control track of the cassette tape, and recording on the control track during playback. Since the displayed information can be selectively reproduced and displayed together with the video signal as an OSD character, there is an effect that the user can easily know the information about the video signal recorded on the cassette tape.

Description

Data recording and playback device of video cassette recorder

Since this is an open matter, no full text was included.

Fig. 1 is a block diagram showing a data recording and reproducing apparatus of a video cassette recorder according to a preferred embodiment of the present invention.

Claims (1)

A data recording and reproducing apparatus for recording and reproducing a predetermined control signal through a control head, which executes a recording and reproducing function of a video signal, for selecting a driving mode of the V.C. A key input unit 10 composed of a plurality of function keys; A video signal processor 20 for processing and outputting a video signal input from the outside to be recorded on a cassette tape; A synchronization detector 30 which detects and outputs a synchronization signal from the image signal provided from the image signal processor 20; Outputs a timing signal according to the synchronization signal and a control signal, outputs an OSD signal according to a key signal input from the key input unit in a recording mode, and outputs an OSD signal according to an information data signal input from the key input unit 10 A control unit 40 outputting the first and second switching signals according to the driving mode by the key signal input from the key input unit 10; An information data generator 60 driven according to the timing signal to output information data corresponding to the data of the controller 40; A mixer unit 70 for mixing and outputting the information data of the information data generator 60 and the control signal of the controller 40; It is switched according to the first and second switching signals in the recording mode to apply the output signal of the mixer unit 70 to the control head CH, and to the first and second switching signals and the timing signal in the reproduction mode. A switching unit (80) which is switched accordingly and separates the information data from the control signal of the control head (CH) and applies the control signal and the separated information data to the control unit (40); And an OSD unit (50) for mixing and outputting a text signal corresponding to the OSD signal with an image signal provided from the image signal processing unit (20). ※ Note: This is to be disclosed by the original application.