KDD CORPORATION
Patent Owner
Stats
- 6 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Sep 21, 2010 most recent publication
Details
- 6 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 451 Total Citation Count
- Aug 26, 1998 Earliest Filing
- 33 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Recent Publications
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Recent Patents
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Title
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Intl Class
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
7380015 Apparatus and method for compression-transmitting and decoding picture information and storage medium stored its control programsExpiredSep 07, 00May 27, 08[G06F]
7116715 Video coding apparatus according to a feature of a video pictureExpiredApr 03, 02Oct 03, 06[H04B]
6976070 Method and apparatus for automatic information filtering using URL hierarchical structure and automatic word weight learningExpiredFeb 14, 00Dec 13, 05[G06F]
6973126 Video coding apparatus according to a feature of a video pictureExpiredFeb 29, 00Dec 06, 05[H04B]
6970467 Transfer scheme for speech and voice band signals and ISDN digital signals using reduced transmission bandwidth over ATMExpiredJan 27, 99Nov 29, 05[H04L, H04J]
6956819 Method, apparatus and system for evaluating quality-of-service in packet switching networkExpiredMay 18, 00Oct 18, 05[H04J]
6870859 Multiplexing system and multiplexing method of tributary signalsExpiredMar 03, 00Mar 22, 05[H04Q]
6795401 Band width measuring method and apparatus for a packet switching networkExpiredApr 19, 00Sep 21, 04[G08C, G06F, G01R, H04J]
6791951 Connection establishment method without specifying called terminal, switched network control device and system using this methodExpiredApr 18, 00Sep 14, 04[H04B]
6772392 Image failure detection unit in redundant duplex transmissionExpiredJun 02, 00Aug 03, 04[H03M, G06F]
6768872 Optical transmission system, optical transmission line and optical transmitterExpiredSep 25, 00Jul 27, 04[H04J]
6744990 WDM optical transmission system and an optical transmission line thereofExpiredNov 05, 99Jun 01, 04[H04B]
6701164 Mobile communication system with zone-shift control apparatusExpiredJun 20, 00Mar 02, 04[H04B]
6629121 Surface acoustic wave-matched filter and differential detector for demodulating spread spectrum signalsExpiredOct 07, 99Sep 30, 03[G06G]
6594428 Dispersion compensating optical transmission line and systemExpiredMar 08, 00Jul 15, 03[G02B]
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