Abstract 1. In a facsimile system, a distributor including an array of n electrical contacts, a source of potential therefor and a normally rotating brush for applying potential from said source to said contacts in sequence, a plurality of cryptographic rotors in cascade, said cascade having n input and n output contacts, means for connecting said distributor contacts to said input contacts in pairs and means for connecting said output contacts together in groups to provide a sequence of n-x output signals from said cascade, a plurality of n-x switches each normally open and closable responsive to an electrical signal, each said switch being controlled by a separate one of said cascade output signals, a facsimile device including a drum carrying a subject to be transmitted and at least one dummy subject, a plurality of n-x scanning devices cooperating with said drum and the subjects carried thereby normally to derive n-x facsimile signals, an output line common to said switches, and means for connecting said scanning devices to said switches in pairs thereby to deliver to said output line signal segments from said scanning devices in a sequence determined by the output signals from said cascade of rotors.
Inventors
👤 Lawrence D. Prehn
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-02 10:01
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/44; H04N1/448
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
In a facsimile system, a distributor including an array of n electrical contacts, a source of potential therefor and a normally rotating brush for applying potential from said source to said contacts in sequence, a plurality of cryptographic rotors in cascade, aid cascade having n input and n output contacts, means for connecting said distributor contacts to said input contacts in pairs and means for connecting said output contacts together in groups to provide a sequence of n-x output signals from said cascade, a plurality of n-x switches each normally open and closable responsive to an electrical signal, each said switch being controlled by a separate one of said cascade output signals, a facsimile device including a drum carrying a subject to be transmitted and at least one dummy subject, a plurality of n-x scanning devices cooperating with said drum and the subjects carried thereby normally to derive n-x facsimile signals, an output line common to said switches, and means for connecting said scanning devices to said switches in pairs thereby to deliver to said output line signal segments from said scanning devices in a sequence determined by the output signals from said cascade of rotors.
Claim 2
Dependent Claim
196 words
In a facsimile system, a distributor including an array of n electrical contacts, a source of potential therefor and a normally rotating brush for applying potential from said source to said contacts in sequence, a plurality of cryptographic rotors in cascade, aid cascade having n input and n output contacts, means for connecting said distributor contacts to said input contacts in pairs and means for connecting said output contacts together in groups to provide a sequence of n-x output signals from said cascade, a plurality of n-x switches each normally open and closable responsive to an electrical signal, each said switch being controlled by a separate one of said cascade output signals, a facsimile device including a drum carrying a subject to be transmitted and at least one dummy subject, a plurality of n-x scanning devices cooperating with said drum and the subjects carried thereby normally to derive n-x facsimile signals, an output line common to said switches, and means for connecting said scanning devices to said switches in pairs thereby to deliver to said output line signal segments from said scanning devices in a sequence determined by the output signals from said cascade of rotors.