Transcrypt International, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 12273
 
  
 
H04K SECRET COMMUNICATION; JAMMING OF COMMUNICATION355
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
H03G CONTROL OF AMPLIFICATION 151
 
  
 
H04B TRANSMISSION 1209
 
  
 
H04M TELEPHONIC COMMUNICATION 1162
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 1241
 
  
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 1106

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6658113 Apparatus and method for concealing data bursts in an analog scrambler using audio repetitionNov 18, 97Dec 02, 03[H04L, H04K]
6298139 Apparatus and method for maintaining a constant speech envelope using variable coefficient automatic gain controlDec 31, 97Oct 02, 01[H03G]
6256491 Voice security between a composite channel telephone communications link and a telephoneDec 31, 97Jul 03, 01[H04B]
6249582 Apparatus for and method of overhead reduction in a block cipherDec 31, 97Jun 19, 01[H04L]
6229897 Apparatus and method of secured analog voice communicationOct 30, 97May 08, 01[H04L]
6215876 Apparatus for and method of detecting initialization vector errors and maintaining cryptographic synchronization without substantial increase in overheadDec 31, 97Apr 10, 01[H04L]
6078668 Apparatus and method for concealing data bursts in an analog scrambler using audio repetitionAug 07, 96Jun 20, 00[H04L]
5949878 Method and apparatus for providing voice privacy in electronic communication systemsJun 28, 96Sep 07, 99[H04N, H04K]
5844938 Carrier based data operated squelchAug 01, 96Dec 01, 98[H04L]
5838804 Apparatus and method for providing proper microphone DC bias current and load resistance for a telephoneAug 07, 96Nov 17, 98[H04R]

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