Fujitsu Microcomputer Systems Limited

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5655114 System and device for prefetching command and parameters to be processed with least frequent bus accessExpiredMay 30, 95Aug 05, 97[G06F]
5146595 Grouping device for forming input signals into groupsExpiredNov 07, 88Sep 08, 92[G06F]
5119487 DMA controller having programmable logic array for outputting control information required during a next transfer cycle during one transfer cycleExpiredFeb 07, 89Jun 02, 92[G06F]
5119496 Method and apparatus for interrupt processing in a computer system having peripheral units connected in a daisy chainExpiredDec 12, 88Jun 02, 92[G06F]
5060054 Device for controlling a color video displayExpiredDec 01, 88Oct 22, 91[H04N]
5056011 Direct memory access controller with expedited error controlExpiredMar 08, 89Oct 08, 91[G06F]
5043935 Data transfer system for rearranging data units using intermediate temporary registersExpiredMar 03, 89Aug 27, 91[G06F]
5033017 Programmable logic array with reduced power consumptionExpiredApr 06, 89Jul 16, 91[G06F]
5018098 Data transfer controlling apparatus for direct memory accessExpiredApr 27, 88May 21, 91[G06F]
5003304 Pattern display signal generating apparatus and display apparatus using the sameExpiredMay 23, 90Mar 26, 91[G09G]
4980890 Semiconductor integrated circuitExpiredApr 11, 89Dec 25, 90[G06F, G01R]
4929854 Clock circuit having a clocked output bufferExpiredApr 10, 89May 29, 90[H03K]
4904883 Semiconductor integrated circuit having a DC test functionExpiredDec 01, 88Feb 27, 90[H03K, G01R]
4868556 Cathode ray tube controllerExpiredJul 24, 87Sep 19, 89[G09G]
4841298 Bit pattern conversion systemExpiredDec 14, 87Jun 20, 89[H03M]

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