KR930022305A - Artificial Intelligence Search and Reproduction Circuit - Google Patents

Abstract

The present invention relates to an artificial intelligence search and playback circuit and method capable of detecting a control signal to detect whether a tape is recorded or not. In the related art, a large number of errors occur in a process of detecting an amplified high frequency and performing analog / digital conversion to control signals. The error could not be accurately determined, resulting in many errors during AI search playback. In view of this, by using the Schmitt trigger, the control signal is stabilized to determine whether the tape is recorded or not by accurate control signal detection, and thus it is possible to operate the AI search without error. Therefore, it is expected to improve the lifespan and reliability of the product by applying the accurate circuit operation to the VR and camcorder.

Description

Artificial Intelligence Search and Reproduction Circuit

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

1 is a block diagram of a conventional artificial intelligence search and reproduction circuit.

3 is a block diagram of the present invention artificial intelligence search reproduction circuit.

4 is a flowchart of operation of FIG.

Claims (2)

A video head section 11 for reproducing a video signal recorded on a tape, a preamplification section 12 for amplifying a video signal reproduced in the video head section 11, and amplified in the preamplification section 12; A high frequency output section 13 for detecting and outputting a high frequency signal in the signal, an FM demodulation section 14 for demodulating the frequency of the high frequency signal output from the high frequency output section 13, and a demodulation in the FM demodulation section 14. A composite synchronous separation section 15 for separating the complex synchronous signal of a predetermined frequency, a control signal head section 16 for reproducing the control signal, and a control signal for detecting the control signal reproduced in the control signal head section 16; A Schmitt trigger unit for amplifying the detection unit 17, the control signal detected by the control signal detection unit 17 (18), and stabilizing to accurately detect the control signal amplified by the control signal amplification unit 18. (19) and the control scene stabilized in this Schmitt trigger unit 19 And AI search reproduction circuit, characterized in that consists of a microprocessor 20 which operates the signal wire and the determination of the composite circuit radish registered signal separated by the separation complex registration unit 15. When the control signal CTL is detected in the reproduction mode, the presence or absence of the composite synchronization signal C-sync is judged, and the composite synchronization signal C-sync is reproduced normally for a predetermined time, and the composite synchronization signal C-sync ) Is not detected for a predetermined time, and when the control signal CTL is not detected, the control signal CTL and the composite synchronization signal C-sync while artificial intelligence search reproduction in the fast playback mode cue. The control signal CTL and the composite synchronization signal C-sync are reproduced normally when the control signal CTL and the composite synchronization signal C-sumc are detected. A method of artificial intelligence searching and reproducing, characterized in that when the tape is not detected for a predetermined time longer than the time, the rewind mode is completed to complete the tape rewind, and then the tape eject mode is completed. ※ Note: This is to be disclosed based on the initial application.