P

Inventor

CHAPPELL BARBARA A

US25 patents
⚠️ This page may combine multiple inventors who share the name “CHAPPELL BARBARA A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IBM

19 patents
US4845677AJul 4, 1989

Pipelined memory chip structure having improved cycle time

IBM135 citations98
US5541427AJul 30, 1996

SRAM cell with capacitor

IBM87 citations95
US5204841AApr 20, 1993

Virtual multi-port RAM

IBM98 citations95
US5542067AJul 30, 1996

Virtual multi-port RAM employing multiple accesses during single machine cycle

IBM36 citations92
US4843261AJun 27, 1989

Complementary output, high-density CMOS decoder/driver circuit for semiconductor memories

IBM29 citations92
US4583197AApr 15, 1986

Multi-stage pass transistor shifter/rotator

IBM34 citations89
US4618784AOct 21, 1986

High-performance, high-density CMOS decoder/driver circuit

IBM21 citations82
US5471188ANov 28, 1995

Fast comparator circuit

IBM7 citations74
US5089726AFeb 18, 1992

Fast cycle time clocked amplifier

IBM7 citations74
US5015881AMay 14, 1991

High speed decoding circuit with improved AND gate

IBM19 citations74
US4998028AMar 5, 1991

High speed CMOS logic device for providing ECL compatible logic levels

IBM9 citations74
US4835419AMay 30, 1989

Source-follower emitter-coupled-logic receiver circuit

IBM9 citations74
US4719372AJan 12, 1988

Multiplying interface circuit for level shifting between FET and TTL levels

IBM9 citations74
US4550489ANov 5, 1985

Heterojunction semiconductor

IBM9 citations74
US4491748AJan 1, 1985

High performance FET driver circuit

IBM13 citations74
US4460910AJul 17, 1984

Heterojunction semiconductor

IBM15 citations74
US5633820AMay 27, 1997

Self-resetting CMOS parallel adder with a bubble pipelined architecture, tri-rail merging logic, and enhanced testability

IBM7 citations72
US4845669AJul 4, 1989

Transporsable memory architecture

IBM19 citations71
US4697108ASep 29, 1987

Complementary input circuit with nonlinear front end and partially coupled latch

IBM6 citations63

INTEL CORP

4 patents

BOHR MARK T

1 patent

CHAPPELL BARBARA A

1 patent