![Telephony / Audio codecs / Robotics / Vocoder / SIGSALY / Pulse-code modulation / Secure voice / Bell Labs / Signal / Cryptography / Technology / Electronics Telephony / Audio codecs / Robotics / Vocoder / SIGSALY / Pulse-code modulation / Secure voice / Bell Labs / Signal / Cryptography / Technology / Electronics](https://www.pdfsearch.io/img/d1574a528331c33c76acd0dc678b832a.jpg)
| Document Date: 2006-06-22 18:56:29 Open Document File Size: 631,69 KBShare Result on Facebook
Company Bell Laboratories / Bell Labs / / Country Australia / United States / / IndustryTerm energy sources / frequency compression device / / Organization British Post Office / Signal Corps / Patent Department / / Person W. Dudley R. C. Mathes / H. Nyquist / W. Dudley A. A. Lundstrom / R. K. Potter / Vaughan L. G. Schimpf / / RadioProgram Green Hornet / Sigsaly / Ciphony 1 / /
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