Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1988-10-31
1990-08-14
Psitos, Aristotelis M.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
360 331, 360 351, 360 191, 358343, H04N 718
Patent
active
049491733
ABSTRACT:
The intermittent magnetic recording/reproducing device of the present invention intermittently drives a rotating drum (10) by an intermittent driving circuit (6) and surface-records a frequency-modulated video signal on a magnetic tape intermittently by video heads (11, 12). On the other hand, an audio signal is converted into a digital signal by an AD converter (22), whose bit number is decreased by a 6-4 converter (23) and a correction code is added thereto by a correction code generation circuit (24). The time base of the digital audio signal is compressed by a time base compression modulation circuit (25) and the signal is deep-recorded on the magnetic tape by audio heads (13, 14) provided on the rotating drum (10). Audio heads (13, 14) have a wider gap width than the video heads (11, 12) and the azimuth angle thereof is different from that of the video heads. Therefore, even if the video signal and the digital audio signal are recorded on the same track, there is no interference between each other.
REFERENCES:
patent: 3542906 (1970-11-01), Warren
patent: 3909512 (1975-09-01), Omori et al.
patent: 4224642 (1980-09-01), Mawatau et al.
patent: 4326218 (1982-04-01), Coutta et al.
patent: 4468708 (1984-08-01), Coleman, Jr.
patent: 4510526 (1985-04-01), Coutta et al.
patent: 4511886 (1985-04-01), Rodriguez
patent: 4531161 (1985-07-01), Murakoshi
patent: 4542419 (1985-09-01), Mono et al.
patent: 4607293 (1986-08-01), Okada et al.
patent: 4654724 (1987-03-01), Nagano
patent: 4725897 (1988-02-01), Konishi
patent: 4751590 (1988-06-01), Wilkinson
Video Recorder with Multiplex Audio, Frost et al., vol. 11, No. 7, Dec. 1968, p. 793, IBM Tech. Disclosure Bulletin.
"Picture Processing for the 4:2:2 Digital Videotape Recorder", Eguchi et al., SMPTE Journal, Oct. 1985, pp. 1002-1006.
"Digital Video Recording-Some Experiments and Future Considerations", Moryono et al., SMPTE Journal, vol. 89, Sep. 80, pp. 658-662.
K. Sadashige, "Developmental Trends for Future Consumer VCRs", SMPTE Journal (Dec. 1984), pp. 1138-1146.
Mitsubishi Denki & Kabushiki Kaisha
Psitos Aristotelis M.
LandOfFree
Security surveillance system with intermittent magnetic recordin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Security surveillance system with intermittent magnetic recordin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Security surveillance system with intermittent magnetic recordin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-466732