Communications system

Cryptography – Communication system using cryptography – Time segment interchange

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

380 28, 380 42, H04K 104

Patent

active

048275131

ABSTRACT:
A communications scrambler operates on a digital basis in which digital or digitized incoming and outgoing signals are merged (60) into a single bit stream for application to a binary bit store (12) and retrieval therefrom for separation (62) of those signals. Multi-bit segments of each signal represent unintelligibly fragments of those signals and are stored and read-out under control of store addressing counters (36, 38, 76) whose outputs are selectively modified (48, 50) to achieve time-dispersion encryption/decryption for outgoing/incoming signals in multi-plexed writing and reading of the store (12). Digitization (52, 54) and reconstitution (64, 66) of analogue incoming and outgoing signals is provided using inherently digital on-chip circuitry and one-bit per sample at a high rate for easy interfacing in telephone/radio systems. The whole control system can be put onto a simple semiconductor chip of ULA type.

REFERENCES:
patent: 4221931 (1980-09-01), Seiler
patent: 4433211 (1984-02-01), McCalmont et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Communications 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 Communications system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communications system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-591000

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.