Videotape Recording: Theory and Practice |
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Page 257
... head Tach ( ft ) Control Osc . To capstan N. ( ft ) Assemble edit C.T. Rec- ft ÷ N signal Rec or edit ( b ) A.F.C. ... Erase and RF turn - on The problem of synchronising erase and RF drive is created by the physical distance between the ...
... head Tach ( ft ) Control Osc . To capstan N. ( ft ) Assemble edit C.T. Rec- ft ÷ N signal Rec or edit ( b ) A.F.C. ... Erase and RF turn - on The problem of synchronising erase and RF drive is created by the physical distance between the ...
Page 258
Theory and Practice Joseph Frederick Robinson, Stephen Lowe. plane of the head is mounted slightly off centre to the video head to allow for the tape movement over 30 ° rotation . If a flying erase head is not fitted it is still possible ...
Theory and Practice Joseph Frederick Robinson, Stephen Lowe. plane of the head is mounted slightly off centre to the video head to allow for the tape movement over 30 ° rotation . If a flying erase head is not fitted it is still possible ...
Page 259
... erase head de - energized video head continues recording for 3 sec . from this time Tn - 2 sec . or Tsd + 1 stop + I sec . Exit guide ( start of video ) 20 " Entrance guide Video erase head turned off here Erased tape Erase head off 9.6 " ...
... erase head de - energized video head continues recording for 3 sec . from this time Tn - 2 sec . or Tsd + 1 stop + I sec . Exit guide ( start of video ) 20 " Entrance guide Video erase head turned off here Erased tape Erase head off 9.6 " ...
Contents
PREFACE | 13 |
TAPE RECORDING PRINCIPLES | 19 |
BASIC REQUIREMENTS OF VIDEOTAPE RECORDING | 45 |
Copyright | |
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Common terms and phrases
adjustment amplitude amplitude modulation analogue angle audio binary broadcast burst capacitor capstan cassette cause centre frequency chroma chrominance circuit clock component control track correction corrector delay line demodulator disc drop-out drum scanner edge edit electronic equalisation erase head field filter flux FM signal format frame pulse frequency modulated gate guard band head position head wheel helical High Band high frequency input line delay locked longitudinal loop Low Band luminance machines Magnetic Tape method mode modulation monochrome motor noise NTSC oscillator output phase error pilot tone playback playing back quadruplex quantised reduced reference replay rotation sample SECAM seen in Fig sequence servo shown in Fig sideband SMPTE splice subcarrier switch synchronism tach tape speed track width U-matic usec velocity error vertical sync video head video signal video tracks waveform zero µsec