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E-Com Corporation Patents |
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Assignee: E-Com Corporation
Address: Milford Square, PA
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4450481 |
Tamper-resistant, expandable communications system |
May 22, 1984 |
| An expandable, multipurpose digital and analog communications system in which a plurality of remote interrogator units connected in a branch of the system are isolated from one another by band stop filters to permit simultaneous polling without interference with other operations. Also |
| 3999005 |
Secure transmission of AM or FM signals |
December 21, 1976 |
| A method and system for scrambling amplitude-modulated or frequency-modulated signals at a transmitter and descrambling the scrambled signals at a receiver. The scrambling is effected at the transmitter by shifting the phase of only the carrier component of the modulated signal by fr |
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