APPARATUS AND METHOD FOR MODE DETECTING FOR RECORDING SPEED IN VIDEO CASSETTE RECORDER

摘要

a filter means detecting only pilot signals within prescribed band among signals regenerated in respective channel in accelerating mode; an automatic track finding(ATF) control means outputting error signal between standard pilot signal and the pilot signal to be pickup through said filter means in pre-established sampling point; a control means outputting the selecting signal selecting the standard pilot signal of respective channel to said ATF control means, and discriminating SP/LP modes according the level of the error signal in said ATF signal to output the result; and a servo means controlling the speed of a recording medium according to the SP/LP mode discriminating signal output from said control means; is disclosed.