ALCATEL NETWORK SYSTEMS, 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 21264
 
  
 
H04J MULTIPLEX COMMUNICATION 20105
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 12435
 
  
 
H03D DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER 544
 
  
 
H04B TRANSMISSION 5205
 
  
 
H04Q SELECTING 4106
 
  
 
H04M TELEPHONIC COMMUNICATION 3160
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 2203
 
  
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 2131
 
  
 
H03K PULSE TECHNIQUE 2129

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6526021 Clear channel 1:N SONET transport system and methodApr 03, 98Feb 25, 03[H04J]
6512740 Telecommunications network distributed restoration method and systemNov 03, 98Jan 28, 03[H04L]
6507561 Telecommunications network distributed restoration method and systemMar 11, 98Jan 14, 03[G01R]
6163527 Method and apparatus for an optical bi-directional line switched ring data communications systemApr 14, 98Dec 19, 00[H04L]
6097001 Portable heating tent and method for testing telecommunications equipmentJun 30, 97Aug 01, 00[G01N, F27B, F27D]
5999286 Method and system for restoring a distributed telecommunications networkJan 09, 97Dec 07, 99[H04J]
5959986 Lightwave transmission telecommunications system employing a stacked matrix architectureSep 30, 97Sep 28, 99[H04L]
5945816 Self-biased power isolator systemApr 21, 98Aug 31, 99[H02J, G05F]
5913066 Electronic work environment for a data processing systemSep 17, 97Jun 15, 99[G06F]
5844908 Digital delay system and method for digital cross connect telecommunication systemsNov 14, 96Dec 01, 98[H04L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6498322 Portable heating tent and method for testing telecommunications equipmentExpiredMar 15, 00Dec 24, 02[G01N, F27B, F27D]
6313442 Portable heating tent and method for testing telecommunications equipmentExpiredOct 10, 00Nov 06, 01[G01N]
6195330 Method and system for hit-less switchingExpiredNov 05, 98Feb 27, 01[H04J]
5930232 Method and system for implementing a protection switching protocolExpiredMar 01, 96Jul 27, 99[H04J]
5924018 Analog microwave communication system having a microwave hop converted to a new operating frequency and methodExpiredApr 30, 97Jul 13, 99[H04B]
5907579 Repeater bipolar violation in-service detection systemExpiredDec 20, 96May 25, 99[H04B]
5903372 Means for remote addition of video services to subscribersExpiredFeb 10, 97May 11, 99[H04J]
5872780 Sonet data transfer protocol between facility interfaces and cross-connectExpiredMay 21, 92Feb 16, 99[H04L]
5778447 System and method for fast memory access using speculative access in a bus architecture systemExpiredMay 14, 97Jul 07, 98[G06F]
5726355 Apparatus for detecting a change in volumetric integrity of an enclosureExpiredMar 04, 97Mar 10, 98[G08B]
5717907 Method and apparatus for generating a reset pulse responsive to a threshold voltage and to a system clockExpiredOct 21, 96Feb 10, 98[G06F]
5715248 Derivation of VT group clock from SONET STS-1 payload clock and VT group bus definitionExpiredMay 21, 92Feb 03, 98[H04J]
5689608 Fiber optic assemblyExpiredJun 07, 95Nov 18, 97[G02B]
5666547 Method and apparatus for framing a serial data streamExpiredSep 23, 94Sep 09, 97[G06F]
5648984 Multidirectional repeater for data transmission between electrically isolated and/or physically different signal transmission mediaExpiredAug 10, 94Jul 15, 97[H04B]
5640512 Maintenance method and apparatus for providing a high-integrity, unidirectional, standardized ATM/SONET/DS3 transport signal link for a video distribution networkExpiredSep 14, 95Jun 17, 97[H04B]
5638410 Method and system for aligning the phase of high speed clocks in telecommunications systemsExpiredOct 14, 93Jun 10, 97[H04L]
5633892 Hybrid line coding method and apparatus using 4B/3T encoding for payload bits and 1B/1T encoding for framing informationExpiredJul 22, 94May 27, 97[H04L]
5630270 Circuit board identification methodExpiredJun 07, 95May 20, 97[H05K]
5612862 Method and circuitry for controlling current reset characteristics of a magnetic amplifier control circuitExpiredMay 06, 94Mar 18, 97[H02M]

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