CIRRUS LOGIC INTERNATIONAL (UK) LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 10418
 
 
 
G11C STATIC STORES 5144
 
 
 
H03K PULSE TECHNIQUE 5124
 
 
 
H03M CODING, DECODING OR CODE CONVERSION, IN GENERAL 5105
 
 
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 4135
 
 
 
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 3144
 
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 2262
 
 
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 195
 
 
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 180
 
 
 
H03B GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS 156

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5502696 CD-ROM subcode R-W channel de-interleaving and de-scrambling method and apparatusSep 23, 94Mar 26, 96[G11B]
5500611 Integrated circuit with input/output pad having pullup or pulldownSep 30, 94Mar 19, 96[H03K]
5500819 Circuits, systems and methods for improving page accesses and block transfers in a memory systemSep 30, 94Mar 19, 96[G11C]
5491701 Burst error correctorOct 18, 94Feb 13, 96[G06F]
5473566 Memory architecture and devices, systems and methods utilizing the sameSep 12, 94Dec 05, 95[G11C]
5473573 Single chip controller-memory device and a memory architecture and methods suitable for implementing the sameMay 09, 94Dec 05, 95[G11C, G06F]
5473620 Programmable redundancy/syndrome generatorSep 21, 93Dec 05, 95[H03M]
5467042 Low power clocking apparatus and methodNov 08, 93Nov 14, 95[H03K]
5467297 Finite field inversionOct 18, 94Nov 14, 95[G06F]
5465260 Dual purpose cyclic redundancy checkNov 04, 93Nov 07, 95[G06F, H03M]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8957731 Amplifier circuit with offset controlWithdrawnNov 14, 12Feb 17, 15[H03F]
5476801 Spacer flash cell processExpiredFeb 03, 95Dec 19, 95[H01L]
5477103 Sequence, timing and synchronization technique for servo system controller of a computer disk mass storage deviceExpiredJun 04, 93Dec 19, 95[G05B]
5455526 Digital voltage shifters and systems using the sameExpiredAug 10, 94Oct 03, 95[H03K]
5446765 Apparatus for recovering data and clock information from an encoded serial data streamExpiredAug 17, 94Aug 29, 95[H04L]
5436641 Flexible graphics interface for multiple display modesExpiredMar 03, 94Jul 25, 95[G09G]
5412669 Add, compare and select circuitExpiredDec 09, 93May 02, 95[G06F]
5410547 Video controller IC with built-in test circuit and method of testingExpiredJun 17, 93Apr 25, 95[G06F]
5396133 High speed CMOS current switching circuitsExpiredOct 01, 93Mar 07, 95[H03K]
5311460 Method and apparatus for performing high speed divide operationsExpiredDec 31, 92May 10, 94[G06F]
5280488 Reed-Solomon code system employing k-bit serial techniques for encoding and burst error trappingExpiredNov 08, 90Jan 18, 94[G06F]
5276856 Memory controller flexible timing control system and methodExpiredSep 28, 89Jan 04, 94[G11C, G06F]
5185602 Method and apparatus for producing perception of high quality grayscale shading on digitally commanded displaysExpiredApr 10, 89Feb 09, 93[G09G]
5157618 Programmable tilesExpiredFeb 28, 90Oct 20, 92[G06F]
5140595 Burst mode error detection and definitionExpiredOct 04, 90Aug 18, 92[H03M]
5131015 Combined BAUD rate generator and digital phase locked loopExpiredOct 22, 90Jul 14, 92[H04L]
5122783 System and method for blinking digitally-commanded pixels of a display screen to produce a palette of many colorsExpiredJul 27, 90Jun 16, 92[G09G]
5032981 Method for increasing effective addressable data processing system memory spaceExpiredApr 10, 89Jul 16, 91[G06F]
4979173 Burst mode error detection and definitionExpiredSep 21, 87Dec 18, 90[G06F, H03K]
4975828 Multi-channel data communications controllerExpiredAug 05, 87Dec 04, 90[G06F]

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