Telegraphy – Systems – Line-clearing and circuit maintenance
Patent
1974-10-07
1976-06-15
Morrison, Malcolm A.
Telegraphy
Systems
Line-clearing and circuit maintenance
178 73S, 179 15BA, H04L 700
Patent
active
039638774
ABSTRACT:
A synchronizing signal transmission system comprises: a circuit for mixing a horizontal synchronizing signal and a vertical synchronizing signal from a synchronizing signal generator and producing a mixed synchronizing signal having a first voltage-level range wherein horizontal synchronizing pulses exist only in a period corresponding to the pulse width of the vertical synchronizing signal, a second voltage-level range wherein the horizontal synchronizing pulses exist in all periods, and a third voltage-level range wherein the horizontal synchronizing pulses do not exist in a period corresponding to the pulse width of the vertical synchronizing signal and exist in other periods; a transmission line for transmitting the mixed synchronizing signal; and a circuit for separating the mixed synchronizing signal thus transmitted in accordance with the first, seconds, and third voltage-level ranges, leading out a signal corresponding to the second voltage-level range thus separated as a horizontal synchronizing signal, and, at the same time, processing signals corresponding respectively to the first through third voltage-level ranges thereby to obtain and lead out a vertical synchronizing signal.
REFERENCES:
patent: 3261919 (1966-07-01), Aaron et al.
patent: 3261920 (1966-07-01), Aaron
patent: 3420951 (1969-01-01), Gunther
Miyazaki Ken
Nakajima Kenji
Krass Errol A.
Morrison Malcolm A.
Victor Company of Japan , Limited
LandOfFree
Synchronizing signal transmission system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Synchronizing signal transmission system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronizing signal transmission system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1696443