Inventor · disambiguated record
Hock C. So
Also filed as: SO HOCK · SO HOCK C · SO HOCK-CHUEN
55 granted patents·1 pending application·6,602 citations·filing 1985–2011
99Inventor score
Files withSANDISK CORP23INVOX TECHNOLOGY12ALTERA CORP9INVOICE TECH INC6MULTI LEVEL MEMORY TECHNOLOGY3
Top patents by PatentIndex Score
56 records- 0199US7397697B2Multi-bit-per-cell flash EEPROM memory with refreshSANDISK CORP·Filed 2007·Granted Jul 8, 2008·106 cites·12 claims
- 0299US7170781B2Multi-bit-per-cell flash EEPROM memory with refreshSANDISK CORP·Filed 2005·Granted Jan 30, 2007·106 cites·11 claims
- 0399US6532556B1Data management for multi-bit-per-cell memoriesMULTI LEVEL MEMORY TECHNOLOGY·Filed 2000·Granted Mar 11, 2003·335 cites·22 claims
- 0499US6151246AMulti-bit-per-cell flash EEPROM memory with refreshSANDISK CORP·Filed 1998·Granted Nov 21, 2000·223 cites·23 claims
- 0599US4899067AProgrammable logic devices with spare circuits for use in replacing defective circuitsALTERA CORP·Filed 1988·Granted Feb 6, 1990·258 cites·15 claims
- 0698US6760262B2Charge pump circuit adjustable in response to an external voltage sourceSANDISK CORP·Filed 2003·Granted Jul 6, 2004·127 cites·10 claims
- 0798US6307776B1Multi-bit-per-cell flash EEPROM memory with refreshSANDISK CORP·Filed 2000·Granted Oct 23, 2001·156 cites·16 claims
- 0898US6278633B1High bandwidth flash memory that selects programming parameters according to measurements of previous programming operationsMULTI LEVEL MEMORY TECHNOLOGY·Filed 1999·Granted Aug 21, 2001·226 cites·19 claims
- 0998US5969986AHigh-bandwidth read and write architectures for non-volatile memoriesINVOX TECHNOLOGY·Filed 1998·Granted Oct 19, 1999·263 cites·25 claims
- 1098US5909449AMultibit-per-cell non-volatile memory with error detection and correctionINVOX TECHNOLOGY·Filed 1997·Granted Jun 1, 1999·323 cites·16 claims
- 1198US5694356AHigh resolution analog storage EPROM and flash EPROMINVOICE TECH INC·Filed 1994·Granted Dec 2, 1997·221 cites·42 claims
- 1298US5638320AHigh resolution analog storage EPROM and flash EPROMINVOICE TECH INC·Filed 1996·Granted Jun 10, 1997·234 cites·14 claims
- 1398US5241224AHigh-density erasable programmable logic device architecture using multiplexer interconnectionsALTERA CORP·Filed 1991·Granted Aug 31, 1993·178 cites·19 claims
- 1498US4871930AProgrammable logic device with array blocks connected via programmable interconnectALTERA CORP·Filed 1988·Granted Oct 3, 1989·395 cites·15 claims
- 1598US4713792AProgrammable macrocell using eprom or eeprom transistors for architecture control in programmable logic circuitsALTERA CORP·Filed 1985·Granted Dec 15, 1987·257 cites·19 claims
- 1697US7447079B2Method for sensing negative threshold voltages in non-volatile storage using current sensingSANDISK CORP·Filed 2007·Granted Nov 4, 2008·50 cites·19 claims
- 1797US6556465B2Adjustable circuits for analog or multi-level memorySANDISK CORP·Filed 2002·Granted Apr 29, 2003·105 cites·4 claims
- 1897US6370075B1Charge pump circuit adjustable in response to an external voltage sourceSANDISK CORP·Filed 1999·Granted Apr 9, 2002·162 cites·24 claims
- 1997US6184726B1Adjustable level shifter circuits for analog or multilevel memoriesSANDISK CORP·Filed 1999·Granted Feb 6, 2001·148 cites·41 claims
- 2097US5943283AAddress scrambling in a semiconductor memoryINVOX TECHNOLOGY·Filed 1997·Granted Aug 24, 1999·345 cites·20 claims
- 2197US5748534AFeedback loop for reading threshold voltageINVOX TECHNOLOGY·Filed 1996·Granted May 5, 1998·252 cites·19 claims
- 2297US4912342AProgrammable logic device with array blocks with programmable clockingALTERA CORP·Filed 1989·Granted Mar 27, 1990·293 cites·2 claims
- 2397US4864161AMultifunction flip-flop-type circuitALTERA CORP·Filed 1988·Granted Sep 5, 1989·102 cites·8 claims
- 2496US5748533ARead circuit which uses a coarse-to-fine search when reading the threshold voltage of a memory cellINVOICE TECH INC·Filed 1996·Granted May 5, 1998·188 cites·25 claims
- 2596US5745409ANon-volatile memory with analog and digital interface and storageINVOX TECHNOLOGY·Filed 1995·Granted Apr 28, 1998·143 cites·32 claims
- 2695US6345000B1Flash memory permitting simultaneous read/write and erase operations in a single memory arraySANDISK CORP·Filed 1998·Granted Feb 5, 2002·148 cites·49 claims
- 2795US5801980ATesting of an analog memory using an on-chip digital input/output interfaceINVOX TECHNOLOGY·Filed 1997·Granted Sep 1, 1998·111 cites·4 claims
- 2895US5751635ARead circuits for analog memory cellsINVOICE TECH INC·Filed 1996·Granted May 12, 1998·108 cites·3 claims
- 2994US6208542B1Techniques for storing digital data in an analog or multilevel memorySANDISK CORP·Filed 1999·Granted Mar 27, 2001·71 cites·35 claims
- 3094US5818757AAnalog and multi-level memory with reduced program disturbINVOX TECHNOLOGY·Filed 1996·Granted Oct 6, 1998·128 cites·24 claims
- 3193US5682352ADigital testing of analog memory devicesINVOICE TECH INC·Filed 1996·Granted Oct 28, 1997·108 cites·25 claims
- 3292US6330185B1High bandwidth multi-level flash memory using dummy memory accesses to improve precision when writing or reading a data streamMULTI LEVEL MEMORY TECHNOLOGY·Filed 2001·Granted Dec 11, 2001·64 cites·12 claims
- 3392US5896340AMultiple array architecture for analog or multi-bit-cell memoryINVOX TECHNOLOGY·Filed 1997·Granted Apr 20, 1999·106 cites·26 claims
- 3491US7554844B2Integrated circuit with analog or multilevel storage cells and user-selectable sampling frequencySANDISK CORP·Filed 2007·Granted Jun 30, 2009·14 cites·24 claims
- 3591US5384499AHigh-density erasable programmable logic device architecture using multiplexer interconnectionsALTERA CORP·Filed 1993·Granted Jan 24, 1995·49 cites·32 claims
- 3690US7440327B1Non-volatile storage with reduced power consumption during read operationsSANDISK CORP·Filed 2007·Granted Oct 21, 2008·23 cites·38 claims
- 3788US6185119B1Analog memory IC with fully differential signal pathSANDISK CORP·Filed 1999·Granted Feb 6, 2001·42 cites·31 claims
- 3887US6898117B2Multi-bit-per-cell flash EEPROM memory with refreshSANDISK CORP·Filed 2001·Granted May 24, 2005·31 cites·12 claims
- 3987US5687115AWrite circuits for analog memoryINVOICE TECH INC·Filed 1996·Granted Nov 11, 1997·51 cites·19 claims
- 4086US7606079B2Reducing power consumption during read operations in non-volatile storageSANDISK CORP·Filed 2007·Granted Oct 20, 2009·16 cites·29 claims
- 4185US5923585ASource biasing in non-volatile memory having row-based sectorsINVOX TECHNOLOGY·Filed 1997·Granted Jul 13, 1999·60 cites·15 claims
- 4285US5815425ACombined digital write and analog rewrite process for non-volatile memoryINVOX TECHNOLOGY·Filed 1997·Granted Sep 29, 1998·46 cites·14 claims
- 4382US5949716ALook-ahead erase for sequential data storageINVOX TECHNOLOGY·Filed 1997·Granted Sep 7, 1999·49 cites·19 claims
- 4482US5680341APipelined record and playback for analog non-volatile memoryINVOICE TECHNOLOGY·Filed 1996·Granted Oct 21, 1997·58 cites·30 claims
- 4580US5268598AHigh-density erasable programmable logic device architecture using multiplexer interconnectionsALTERA CORP·Filed 1993·Granted Dec 7, 1993·33 cites·27 claims
- 4679US7894263B2High voltage generation and control in source-side injection programming of non-volatile memorySANDISK CORP·Filed 2007·Granted Feb 22, 2011·9 cites·46 claims
- 4779US7298670B2Integrated circuit with analog or multilevel storage cells and user-selectable sampling frequencySANDISK CORP·Filed 2006·Granted Nov 20, 2007·6 cites·3 claims
- 4877US8406052B2High voltage generation and control in source-side injection programming of non-volatile memoryLEE DANA·Filed 2011·Granted Mar 26, 2013·5 cites·50 claims
- 4975US5909387AMemory architecture for recording of multiple messagesINVOX TECHNOLOGY·Filed 1997·Granted Jun 1, 1999·35 cites·20 claims
- 5074US7532516B2Non-volatile storage with current sensing of negative threshold voltagesSANDISK CORP·Filed 2007·Granted May 12, 2009·6 cites·19 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →