Optical communications transmitter and receiver

Details Optical communications transmitter and receiver Optical communications transmitter and receiver

1986-07-23

1989-07-25

Buczinski, Stephen C.

Pulse or digital communications

Spread spectrum

Direct sequence

375113, 370 48, 370 99, 370106, H04L 2538, H04L 706, H04L 524, H04J 306

Patent

active

048521280

ABSTRACT:
An improved digital communications system is disclosed in which synchronization information is transmitted with the data. A start pulse, having a duration different than the other pulses in the transmitted digital data signal is used to mark the beginning of the frame of digital data. Preferably, a midpoint pulse is also transmitted with the start pulse to mark the midpoint of the frame to facilitate the generation of a local clock signal. Bit positions within the transmitted signal are sampled by sampling pulses which are generated by digital timers having time intervals keyed to the start and midpoint pulses.

REFERENCES:
patent: 3396239 (1968-08-01), Yamauchi
patent: 3430204 (1969-02-01), Milford
patent: 3662114 (1972-05-01), Clark
patent: 3742145 (1973-06-01), Clark et al.
patent: 3798378 (1974-03-01), Epstein
patent: 3961137 (1976-06-01), Hutt et al.
patent: 4101732 (1978-07-01), Suzuki
patent: 4276642 (1981-06-01), Siglow et al.
patent: 4413336 (1983-11-01), Chaillie et al.
patent: 4562581 (1985-12-01), Tanaka et al.
patent: 4589120 (1986-05-01), Mendala

Affiliated with

Also associated with

Rating

Optical communications transmitter and receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical communications transmitter and receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical communications transmitter and receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2364461