Telegraphy – Systems – Printing
Patent
1979-03-15
1981-05-26
Robinson, Thomas A.
Telegraphy
Systems
Printing
178 69G, 179170F, H04B 160
Patent
active
042700299
ABSTRACT:
A digital signal repeater selecting system for a digital signal transmission system equipped with a plurality of digital signal repeaters disposed on a transmission line at desired intervals, in which there are provided in each of the repeaters a delay circuit having a particular delay time corresponding to an integral multiple of the unit code length of a digital signal and assigned to the repeater and having its input terminal connected to the transmission line, and a code comparator for comparing the input signal to and the output signal from the delay circuit with each other to produce a predetermined output signal when the both signals are decided to be substantially identical with each other, and in which when a repeater selecting code train repeating in synchronism with the delay time is applied to the transmission line, the repeater to which the delay time is assigned produces the predetermined output signal from the code comparator to allow an operation of selecting the repeater. The above principle can be applied to monitor the condition of the transmission line.
REFERENCES:
patent: 3678222 (1972-07-01), Boehly
patent: 3866217 (1975-02-01), Bennett, Jr.
patent: 4022988 (1977-05-01), Lentz et al.
Ejiri Yoshihiro
Sato Masanori
Wakabayashi Hiroharu
Yamamoto Hitoshi
Adams Bruce L.
Burns Robert E.
Kokusai Denshin Denwa Kabushiki Kaisha
Lobato Emmanuel J.
Robinson Thomas A.
LandOfFree
Selection system for digital signal repeaters does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Selection system for digital signal repeaters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selection system for digital signal repeaters will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-454773