Assignee
TRANSCRYPT INT INC
US·17 granted patents·604 citations·filing 1993–1997
Top patents by PatentIndex Score
17 records- 0187US6298139B1Apparatus and method for maintaining a constant speech envelope using variable coefficient automatic gain controlTRANSCRYPT INT INC·Filed 1997·Granted Oct 2, 2001·95 cites·12 claims
- 0282US5278907AAnalog scrambling with continuous synchronizationTRANSCRYPT INT INC·Filed 1993·Granted Jan 11, 1994·62 cites·46 claims
- 0372US5771287AApparatus and method for secured control of feature set of a programmable deviceTRANSCRYPT INT INC·Filed 1996·Granted Jun 23, 1998·81 cites·22 claims
- 0469US5787180AMethod of connecting a scrambler or encryption device to a hand-held portable cellular telephoneTRANSCRYPT INT INC·Filed 1997·Granted Jul 28, 1998·41 cites·28 claims
- 0564US5781458AMethod and apparatus for generating truly random numbersTRANSCRYPT INT INC·Filed 1997·Granted Jul 14, 1998·54 cites·29 claims
- 0662US5784422AApparatus and method for accurate synchronization with inbound data packets at relatively low sampling ratesTRANSCRYPT INT INC·Filed 1996·Granted Jul 21, 1998·79 cites·3 claims
- 0758US6215876B1Apparatus for and method of detecting initialization vector errors and maintaining cryptographic synchronization without substantial increase in overheadTRANSCRYPT INT INC·Filed 1997·Granted Apr 10, 2001·42 cites·26 claims
- 0858US5949878AMethod and apparatus for providing voice privacy in electronic communication systemsTRANSCRYPT INT INC·Filed 1996·Granted Sep 7, 1999·24 cites·20 claims
- 0957US6249582B1Apparatus for and method of overhead reduction in a block cipherTRANSCRYPT INT INC·Filed 1997·Granted Jun 19, 2001·41 cites·28 claims
- 1045US6229897B1Apparatus and method of secured analog voice communicationTRANSCRYPT INT INC·Filed 1997·Granted May 8, 2001·17 cites·34 claims
- 1145US5832076AApparatus and method for determining the presence and polarity of direct current bias voltage for microphones in telephone setsTRANSCRYPT INT INC·Filed 1996·Granted Nov 3, 1998·16 cites·27 claims
- 1240US5838804AApparatus and method for providing proper microphone DC bias current and load resistance for a telephoneTRANSCRYPT INT INC·Filed 1996·Granted Nov 17, 1998·11 cites·22 claims
- 1338US5844938ACarrier based data operated squelchTRANSCRYPT INT INC·Filed 1996·Granted Dec 1, 1998·16 cites·17 claims
- 1438US5796838AMethod and apparatus for performing frequency spectrum inversionTRANSCRYPT INT INC·Filed 1996·Granted Aug 18, 1998·13 cites·17 claims
- 1533US6256491B1Voice security between a composite channel telephone communications link and a telephoneTRANSCRYPT INT INC·Filed 1997·Granted Jul 3, 2001·8 cites·24 claims
- 1632US6078668AApparatus and method for concealing data bursts in an analog scrambler using audio repetitionTRANSCRYPT INT INC·Filed 1996·Granted Jun 20, 2000·4 cites·19 claims
- 1724US6658113B1Apparatus and method for concealing data bursts in an analog scrambler using audio repetitionTRANSCRYPT INT INC·Filed 1997·Granted Dec 2, 2003·0 cites·14 claims
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