Sony HVR1500A Product Manual (HVE-1500A Operating Manuals) - Page 108
Threading, Timecode, Unloading, User bit data, VBID Video Blanking ID, See Loading.
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base correction reduces deterioration of picture quality when transmitting or copying playback signals. Threading See "Loading." Timecode A digitally encoded signal which is recorded with video data to identify each frame of the video by hour, minute, second and frame number. SMPTE timecode is applied to NTSC system, and EBU timecode to PAL and SECAM systems. Unloading When the EJECT button is pressed, the VCR automatically winds the tape back into the cassette case. Also called "Unthreading." User bit data A total of 32 bits are provided in the timecode which the user can use to record such information as date, reel number, or scene number on video tape or disc. Also called user's bits. VBID (Video Blanking ID) This is a video ID signal, defined in the EIAJ CPR-1204 standard, which is inserted into VBS video output to enable the aspect ratio to be detected. The ID signal is inserted into line 20, VBI 283. 108 Glossary Appendix