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Your search returned 112 patents.
( 380/274 in Current US Classification ) |
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| Patent ID | Title | Date Filed |
| 5778075 | Methods and systems for mobile terminal assisted handover in an private radio communications network
| August 30, 1996 |
| 5778073 | Method and device for speech encryption and decryption in voice transmission
| May 14, 1996 |
| 5774550 | Vehicle security device with electronic use authorization coding
| June 26, 1997 |
| 5768374 | Apparatus and method for continuous scrambling while transmitting or receiving synchronization data
| August 6, 1996 |
| 5717762 | WACS-type mobile communication with a unified frame format
| November 24, 1995 |
| 5699430 | Method and apparatus for electronically preventing unauthorized access to equipment
| September 12, 1995 |
| 5661804 | Trainable transceiver capable of learning variable codes
| June 27, 1995 |
| 5646996 | Automatic resynchronization of transmitter in the event of corrupted memory
| September 5, 1995 |
| 5610983 | Apparatus for detecting a synchronization component in a satellite transmission system receiver
| September 30, 1994 |
| 5598476 | Random clock composition-based cryptographic authentication process and locking system
| October 26, 1995 |
| 5592556 | Digital radio with vocoding encrypting codec
| August 9, 1994 |
| 5546464 | Method of and apparatus for selective resynchronization in a digital cellular communications system
| September 16, 1994 |
| 5535278 | Global positioning system (GPS) receiver for recovery and tracking of signals modulated with P-code
| May 2, 1994 |
| 5528693 | Method and apparatus for voice encryption in a communications system
| January 21, 1994 |
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