Voice-Controlled Disappearing Audio Delay Line.

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Abstract:

The Voice-Controlled Disappearing Audio Delay Line automatically by voice only controls the operation of a half-duplex voice scrambler which uses a preamble. In conjunction with a control circuit, it keys the scrambler when a voice signal appears at the input, stores the signal as the preamble is being transmitted, feeds the signal into the scrambler at the end of the preamble transmission, eliminates the delay at the scrambler input as the message continues, and unkeys the scrambler when an end-of-message is unrecognized. Author

Author(s):
Johnson, G. B.
Author Organization(s):
NAVAL ELECTRONICS LAB CENTER SAN DIEGO CALIF
Descriptive Note:
Technical document,
Pagination:
0005

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NELC-TD-322
Task Number(s):
15447
Project Number(s):
S3129
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*Speech scrambling, *Delay lines, Control, Communication equipment, Speech, Delay circuits
Field(s)/Group(s):
Non-Radio Communications
Report Date:
1974 Jun 01