KR940017765A

KR940017765A - V-V Mode Switching Device and Method

Info

Publication number: KR940017765A
Application number: KR1019920023007A
Authority: KR
Inventors: 김상수
Original assignee: 이헌조; 주식회사 금성사
Priority date: 1992-12-01
Filing date: 1992-12-01
Publication date: 1994-07-27
Also published as: KR950007605B1

Abstract

본 발명은 브이씨알의 브이-브이 모드 절환장치 및 방법에 관한 것으로서, 이는 캡스턴 모터에서 발생되어 입력되는 주파수를 기준신호로 하여 그 기준신호의 주기가 소정갯수 이상 검출되면 V-V 브모드로 절환하여 빠른 재생화면을 얻도록 한 것이다.The present invention relates to a V-V mode switching device and a method of V-seal, which converts to a VV V mode when a predetermined number of cycles of the reference signal are detected using a frequency generated and input from a capstan motor as a reference signal. To get the playback screen.

이와같은 본 발명은 기록/재생모드시 LP, EP 및 SP 모드에 따라 주행계의 캡수턴모터에서 발생되어 검출된 주파수를 파형정형화하는 파형정형수단과, 상기 파형정형수단으로 부터 출력된 펄스를 설정 카운트값까지 카운트하는 카운터수단과, 상기 카운터수단의 카운트값에 따라 구동하여 실시간 클럭을 발생하는 타이머와, 상기 타이머의 실시간클럭과 EP, LP, SP 모드에 따라 설정된 기준실시간클럭을 비교하여 그 결과값에 따라 주행계에 정상상태를 판단하고 시스템은 V-V 모드로 절환하는 시스템제어수단으로 이루어짐으로써, 달성되는 것이다.The present invention sets the waveform shaping means for waveform shaping the detected frequency generated in the cap-turn motor of the odometer according to the LP, EP and SP modes in the recording / reproducing mode, and the pulses output from the waveform shaping means. A counter means for counting up to a count value, a timer driving according to the count value of the counter means to generate a real time clock, and a result of comparing the real time clock of the timer with a reference real time clock set according to the EP, LP, and SP modes. This is achieved by determining the steady state in the odometer according to the value and by the system control means for switching to the VV mode.

Description

V-V Mode Switching Device and Method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래 브이씨알의 브이-브이 모드 절환시스템 구성도, 제2도는 제1도의 동작설명에 대한 신호흐름도, 제3도는 본 발명 브이씨알의 브이-브이 모드 절환시스템 구성도, 제4도는 제3도의 동작설명에 대한 제어신호 흐름도.1 is a configuration diagram of a conventional V-V mode switching system, FIG. 2 is a signal flow diagram for explaining the operation of FIG. 1, and FIG. Control signal flow chart for operation description of FIG.

Claims

Waveform shaping means for waveform shaping the detected frequency generated by the capstan motor of the odometer according to the LP, EP and SP modes in the recording / reproducing mode; counter means for counting pulses obtained from the waveform shaping means to a set count value; And a timing means for generating a real time clock by driving according to the count value of the counter means, and comparing the real time clock of the timing means with a reference real time clock set according to the EP, LP, and SP modes, V-V mode switching device comprising a system control means for determining the steady state and switching the system to VV mode.

A first process of waveform shaping the detected frequency generated by the capstan motor according to the EP, LP, and SP modes in the play / record mode, and counting the waveform obtained in the first process to the set value and the period of the count value in real time. The second process of searching and comparing with the reference real time of the steady state set according to the EP, LP, SP mode, and the count value until the set count value is reached V-V mode switching method characterized in that it comprises a third step of switching to VV mode by increasing the.

※ Note: The disclosure is based on the initial application.