JPS6155285U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a screen display device of a video disc playback device according to the present invention, and FIG.
An explanatory diagram showing the screen display state when inaccessibility is specified in the circuit shown in the figure, Fig. 3 is a block diagram showing the configuration of a conventional video disc playback device, and Fig. 4 is when success is specified by the circuit in Fig. 3. FIG. 2 is an explanatory diagram showing a screen display state of the screen. 4...Signal reproduction needle, 5...Signal detection circuit, 6...Video signal processing circuit, 7...Code detection circuit, 8...Code comparison circuit, 9...Video disk control circuit, 10...On-screen character display circuit, 1
1, 14...Timer circuit, 12...Circuit for arm drive and needle control, 13...Mixing circuit.

Claims (1)

[Claims for Utility Model Registration] A disk on which address code information is recorded together with video information, means for placing and rotating this disk, a playback needle that detects signals from the disk, and a playback needle that holds and plays the playback needle. a means for moving and driving a playback stylus for moving the stylus relative to the disk surface; a signal processing means for electrically processing the signal detected by the playback stylus and reproducing it as a video signal; and an address code signal from the played video signal. a code detection circuit for detecting a target access position; a device for inputting and specifying a desired access position; and a means for outputting an access code signal corresponding to the input specification and a signal indicating the start of access, and moving and driving the regeneration needle at the time of access. a device control means for controlling input/output of various signals to various circuits; a character/numeric signal generation circuit for inputting an access code signal from the control means and converting the signal into a corresponding character/numeric signal; a first timer circuit that is activated by a signal indicating the start of access from the device control means and outputs an end signal after a certain period of time; an access code from the device control means and an address code signal from the code detection circuit; It is controlled by an end signal from the first timer circuit, and when both code signals match before the end signal is input, a match signal is output to the device control means to make a match. a code comparison circuit that outputs a signal indicating inaccessibility to the device control means if the code comparison circuit is not accessible; and a code comparison circuit that is activated by the signal indicating inaccessibility from the comparison circuit and outputs a constant cycle ON/OFF signal to the device control means. a second timer circuit for intermittent access code signals from the device control means to the character/numeric signal generation circuit using on/off signals when access is not possible; and a video signal from the signal processing means. is equipped with a mixing circuit that superimposes and outputs the character/numeric signals from the character/numeric signal generation circuit, and a display device for inputting and displaying the mixed output on a screen, and a display device that displays a specified number during access and when access is completed. A screen display device for a video disc playback device, characterized in that letters and numbers indicating an access position that have been accessed are displayed on the screen, and when access is impossible, the letters and numbers indicating the access position are displayed blinking on the screen.