G.D.S. Co., Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6473454 Rake combiner apparatus using charge transfer elementExpiredJan 27, 99Oct 29, 02[H04B]
6381261 Random pulse type radar apparatusExpiredNov 23, 98Apr 30, 02[H04L, H04B, H04K]
5987491 General purpose charge mode analog operation circuitExpiredOct 31, 95Nov 16, 99[G06G]
5936461 Charge domain signal filterExpiredJun 11, 97Aug 10, 99[G06F]
5936567 Parallel charge signal delivery system, and filtering AD converter using the sameExpiredOct 15, 97Aug 10, 99[H03M]
5887025 Matched filter acting in charge domainExpiredApr 23, 98Mar 23, 99[H04B, H03H]
5867526 Matched filter acting in charge domainExpiredDec 24, 97Feb 02, 99[H04B, H03H]
5701260 Multiplier using charge transfer deviceExpiredJun 05, 95Dec 23, 97[G06J]
5634067 Systolic array processorExpiredNov 18, 94May 27, 97[G06F]
5539404 Digital to analog converter using recursive signal dividing charge coupled devicesExpiredFeb 07, 94Jul 23, 96[H03M]
5537115 Analog-to-digital converterExpiredMay 27, 94Jul 16, 96[H03M]
5530953 Apparatus for relocating spatial information for use in data exchange in a parallel processing environmentExpiredMay 08, 95Jun 25, 96[G06F]
5247472 Fuzzy logic operation circuit utilizing charge coupled devicesExpiredOct 15, 91Sep 21, 93[G06F]
5228111 Fuzzy signal defuzzifier using charged coupled devicesExpiredMar 09, 92Jul 13, 93[G05B, G06F]
5136685 Fuzzy logic computer using charge coupled devicesExpiredFeb 09, 90Aug 04, 92[G06F]
5084901 Sequential chirp modulation-type spread spectrum communication systemExpiredDec 22, 89Jan 28, 92[H04L]

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