Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording
Patent
1984-12-21
1988-08-30
Faber, Alan
Dynamic magnetic information storage or retrieval
Monitoring or testing the progress of recording
360 91, 360 32, 358335, A04N 592
Patent
active
047681098
ABSTRACT:
A video signal recording apparatus comprises a sampling circuit for sampling an input video signal by a signal having a predetermined frequency f.sub.s, a circuit for obtaining a multiplexed signal by multiplexing a reference burst signal to the output sampled signal of the sampling circuit, and a circuit for recording the multiplexed signal on a recording medium. A video signal recording and reproducing apparatus comprises in addition to the constituting elements of the recording apparatus, a circuit for reproducing the recorded multiplexed signal from the recording medium, a circuit for obtaining from the reproduced multiplexed signal first and second reproduced sampled signals having a relative time difference of one horizontal scanning period, a circuit for generating first and second sampling pulses having the same frequency f.sub.s and having phases which mutually differ by 180.degree., a circuit for re-sampling the first and second reproduced sampled signals by the respective first and second sampling pulses so as to obtain first and second re-sampled signals, and a circuit for at least adding the first and second re-sampled signals so as to obtain a reproduced video signal.
REFERENCES:
patent: 4068265 (1978-01-01), Russell
patent: 4292652 (1981-09-01), Yumde
patent: 4306249 (1981-12-01), Croll
patent: 4335393 (1982-06-01), Pearson
patent: 4608600 (1986-08-01), Sugiyama
patent: 4682250 (1987-07-01), Hirota
"Extending PCM Video Response Above the Nyquist Limit", by Goldberg, Int'l Broadcasting Convention, 9/20/76.
Faber Alan
Meller Michael N.
Victor Company of Japan Ltd.
LandOfFree
Video signal recording and/or reproducing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Video signal recording and/or reproducing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video signal recording and/or reproducing apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2092151