Assignee
INFORMATION STORAGE DEVICES
US·44 granted patents·3,002 citations·filing 1988–2000
Top patents by PatentIndex Score
44 records- 0198US4890259AHigh density integrated circuit analog signal recording and playback systemINFORMATION STORAGE DEVICES·Filed 1988·Granted Dec 26, 1989·171 cites·10 claims
- 0297US6301151B1Adaptive programming method and apparatus for flash memory analog storageINFORMATION STORAGE DEVICES·Filed 2000·Granted Oct 9, 2001·250 cites·25 claims
- 0397US5926409AMethod and apparatus for an adaptive ramp amplitude controller in nonvolatile memory applicationINFORMATION STORAGE DEVICES·Filed 1997·Granted Jul 20, 1999·234 cites·39 claims
- 0497US5220531ASource follower storage cell and improved method and apparatus for iterative write for integrated circuit analog signal recording and playbackINFORMATION STORAGE DEVICES·Filed 1991·Granted Jun 15, 1993·205 cites·16 claims
- 0597US4989179AHigh density integrated circuit analog signal recording and playback systemINFORMATION STORAGE DEVICES·Filed 1989·Granted Jan 29, 1991·145 cites·12 claims
- 0696US5388064AProgrammable non-volatile analog voltage source devices and methodsINFORMATION STORAGE DEVICES·Filed 1991·Granted Feb 7, 1995·163 cites·38 claims
- 0794US5629890AIntegrated circuit system for analog signal storing and recovery incorporating read while writing voltage program methodINFORMATION STORAGE DEVICES·Filed 1994·Granted May 13, 1997·90 cites·47 claims
- 0893US5726934AMethod and apparatus for analog reading values stored in floating gate structuresINFORMATION STORAGE DEVICES·Filed 1996·Granted Mar 10, 1998·97 cites·18 claims
- 0992US5745414AIntegrated circuit system having reference cells for improving the reading of storage cellsINFORMATION STORAGE DEVICES·Filed 1996·Granted Apr 28, 1998·74 cites·8 claims
- 1092US5241494AIntegrated circuit system for analog signal recording and playbackINFORMATION STORAGE DEVICES·Filed 1990·Granted Aug 31, 1993·103 cites·41 claims
- 1191US5969987ANon-volatile electrically alterable semiconductor memory for analog and digital storageINFORMATION STORAGE DEVICES·Filed 1999·Granted Oct 19, 1999·76 cites·8 claims
- 1291US5631606AFully differential output CMOS power amplifierINFORMATION STORAGE DEVICES·Filed 1995·Granted May 20, 1997·73 cites·15 claims
- 1391US5352934AIntegrated mosfet resistance and oscillator frequency control and trim methods and apparatusINFORMATION STORAGE DEVICES·Filed 1993·Granted Oct 4, 1994·59 cites·14 claims
- 1490US5783934ACMOS voltage regulator with diode-connected transistor divider circuitINFORMATION STORAGE DEVICES·Filed 1997·Granted Jul 21, 1998·65 cites·9 claims
- 1589US5243239AIntegrated MOSFET resistance and oscillator frequency control and trim methods and apparatusINFORMATION STORAGE DEVICES·Filed 1992·Granted Sep 7, 1993·51 cites·14 claims
- 1689US5164915ACascading analog record/playback devicesINFORMATION STORAGE DEVICES·Filed 1991·Granted Nov 17, 1992·78 cites·28 claims
- 1788US6002620AMethod and apparatus of column redundancy for non-volatile analog and multilevel memoryINFORMATION STORAGE DEVICES·Filed 1998·Granted Dec 14, 1999·78 cites·20 claims
- 1888US5623436AMethod and apparatus for adjustment and control of an iterative method of recording analog signals with on-chip trimming techniquesINFORMATION STORAGE DEVICES·Filed 1994·Granted Apr 22, 1997·73 cites·36 claims
- 1988US5294819ASingle-transistor cell EEPROM array for analog or digital storageINFORMATION STORAGE DEVICES·Filed 1992·Granted Mar 15, 1994·75 cites·44 claims
- 2087US5808506AMOS charge pump generation and regulation method and apparatusINFORMATION STORAGE DEVICES·Filed 1996·Granted Sep 15, 1998·83 cites·23 claims
- 2186US5909393AMethod and apparatus for reading analog values stored in floating gate NAND structuresINFORMATION STORAGE DEVICES·Filed 1997·Granted Jun 1, 1999·53 cites·29 claims
- 2285US5973956ANon-volatile electrically alterable semiconductor memory for analog and digital storageINFORMATION STORAGE DEVICES·Filed 1995·Granted Oct 26, 1999·53 cites·22 claims
- 2385US5754470AApparatus for programming a voltage within a storage elementINFORMATION STORAGE DEVICES·Filed 1996·Granted May 19, 1998·45 cites·25 claims
- 2485US5126967AWritable distributed non-volatile analog reference system and method for analog signal recording and playbackINFORMATION STORAGE DEVICES·Filed 1990·Granted Jun 30, 1992·60 cites·8 claims
- 2584US5995413ATrimbit circuit for flash memory integrated circuitsINFORMATION STORAGE DEVICES·Filed 1999·Granted Nov 30, 1999·50 cites·6 claims
- 2684US5815435AStorage cell for analog recording and playbackINFORMATION STORAGE DEVICES·Filed 1995·Granted Sep 29, 1998·62 cites·24 claims
- 2781US5828592AAnalog signal recording and playback integrated circuit and message management systemINFORMATION STORAGE DEVICES·Filed 1997·Granted Oct 27, 1998·62 cites·27 claims
- 2880US5642316AMethod and apparatus of redundancy for non-volatile memory integrated circuitsINFORMATION STORAGE DEVICES·Filed 1996·Granted Jun 24, 1997·48 cites·23 claims
- 2977US5963462AIntegrated circuit system for analog signal storing and recovery incorporating read while writing voltage program methodINFORMATION STORAGE DEVICES·Filed 1998·Granted Oct 5, 1999·28 cites·28 claims
- 3074US6018267AHigh output swing operational amplifier using low voltage devicesINFORMATION STORAGE DEVICES·Filed 1998·Granted Jan 25, 2000·34 cites·32 claims
- 3170US5808938AMethod and apparatus for reading analog values stored in floating gate nand structuresINFORMATION STORAGE DEVICES·Filed 1997·Granted Sep 15, 1998·23 cites·7 claims
- 3269US5959883ARecording and playback integrated system for analog non-volatile flash memoryINFORMATION STORAGE DEVICES·Filed 1998·Granted Sep 28, 1999·30 cites·26 claims
- 3369US5877984AMethod and apparatus for adjustment and control of an iterative method of recording analog signals with on chip selection of a voltage ramp amplitudeINFORMATION STORAGE DEVICES·Filed 1997·Granted Mar 2, 1999·27 cites·21 claims
- 3469US5664060AMessage management methods and apparatusINFORMATION STORAGE DEVICES·Filed 1994·Granted Sep 2, 1997·31 cites·19 claims
- 3568US6100752AMethod and apparatus for reducing power supply current surges in a charge pump using a delayed clock lineINFORMATION STORAGE DEVICES·Filed 1997·Granted Aug 8, 2000·39 cites·21 claims
- 3665US6018477AIntelligent refreshing method and apparatus for increasing multi-level non-volatile memory charge retention reliabilityINFORMATION STORAGE DEVICES·Filed 1998·Granted Jan 25, 2000·25 cites·26 claims
- 3760US6081603AMethod and apparatus for automatic gain control using a linear limiter circuit with voltage controlled resistors as a variable elementINFORMATION STORAGE DEVICES·Filed 1997·Granted Jun 27, 2000·19 cites·21 claims
- 3858US5933370ATrimbit circuit for flash memoryINFORMATION STORAGE DEVICES·Filed 1998·Granted Aug 3, 1999·15 cites·13 claims
- 3956US6035049AAC coupling and signal amplification using switched capacitorsINFORMATION STORAGE DEVICES·Filed 1997·Granted Mar 7, 2000·16 cites·9 claims
- 4049US5723985AClocked high voltage switchINFORMATION STORAGE DEVICES·Filed 1995·Granted Mar 3, 1998·12 cites·26 claims
- 4146US5986928AMethod and apparatus for detecting the end of message recorded onto an array of memory elementsINFORMATION STORAGE DEVICES·Filed 1997·Granted Nov 16, 1999·11 cites·25 claims
- 4243US5959876ASingle or dual message multilevel analog signal recording and playback system containing independently controlled signal storage segments with externally selectable duration capabilityINFORMATION STORAGE DEVICES·Filed 1998·Granted Sep 28, 1999·8 cites·36 claims
- 4336US5835412ALinearized storage cell for integrated circuit analog signal recording and playbackINFORMATION STORAGE DEVICES·Filed 1997·Granted Nov 10, 1998·4 cites·24 claims
- 4435US5859803ANon-volatile circuit that disables failed devicesINFORMATION STORAGE DEVICES·Filed 1997·Granted Jan 12, 1999·4 cites·24 claims
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