Abstract An apparatus for enciphering and deciphering multidigit coded signals, comprising a key generator and an input storage, both said key generator and input storage being connected with a mixing stage. The mixing stage serves to couple in character element fashion signals delivered from the input storage with signals delivered from the key generator. This input storage contains a first storage stage with a number of individual stores in which there can be stored in character element fashion a number of successive signals corresponding to the number of individual stores. A comparison detector responds to the majority of the similar type character elements of the same digit or place value recorded at the individual stores by producing a majority signal. This detector is connected with the second storage stage of the input storage and said second storage stage receives the majority signal produced by the individual stores of the first storage stage.
Inventors
👤 B Gemperle
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-25 15:57
CPC Classifications
G; G09; G09C; G09C3/00; G09C3/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
157 words
An apparatus for enciphering and deciphering multidigit coded signals, comprising a key generator, an input storage device, and mixing means, said key generator and said input storage device being connected to said mixing means; said mixing means serving to couple, character element by character element, characters delivered from said input storage device with characters delivered from said key generator; said input storage device including first storage means having a number of individual storage units for storing the character elements of a predetermined number of successive characters, said input storage device including comparison detector means for detecting the type of character elements at corresponding character element positions of said predetermined number of characters and for producing a majority signal in response to the majority of the detected character elements of the same type and at the same character element position, said input storage device including second storage means connected to said comparison detector for receiving the majority signal.
Claim 2
Independent Claim
157 words
An apparatus for enciphering and deciphering multidigit coded signals, comprising a key generator, an input storage device, and mixing means, said key generator and said input storage device being connected to said mixing means; said mixing means serving to couple, character element by character element, characters delivered from said input storage device with characters delivered from said key generator; said input storage device including first storage means having a number of individual storage units for storing the character elements of a predetermined number of successive characters, said input storage device including comparison detector means for detecting the type of character elements at corresponding character element positions of said predetermined number of characters and for producing a majority signal in response to the majority of the detected character elements of the same type and at the same character element position, said input storage device including second storage means connected to said comparison detector for receiving the majority signal.
Claim 3
Dependent Claim
39 words
The apparatus as defined in claim 1, further including an automatically actuated plain/secret-switch means possessing a preparatory position and which, following completion of programing of the key generator, is automatically switched over to operate in the secret text mode.