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Patent AT-E4016-T1: [Translated] DIGITAL FREQUENCY TRANSMITTER.

Published by National Center for Biotechnology Information (NCBI) | U.S. Department of Health & Human Services | Metadata Last Checked: September 06, 2025 | Last Modified: 2025-09-06
A digital frequency sender comprises a generator which supplies multi-frequency codes by cyclically scanning a table under the control of a time base (BT). The sender comprises a logarithmic generator (GL) which delivers single-frequency signals, a logarithmic adder (AL) which sums two single-frequency signals in compressed form, and a frequency output unit (DF) controlled by a computer (CAL). The invention is particularly applicable to time division telecommunication exchange division.

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