Assignee
PERTEC COMPUTER CORP
17 granted patents·426 citations·filing 1974–1982
Top patents by PatentIndex Score
17 records- 0189US4027217ASpeed control for a motorPERTEC COMPUTER CORP·Filed 1975·Granted May 31, 1977·59 cites·9 claims
- 0288US4237501AEmergency head unload system for magnetic disk drivePERTEC COMPUTER CORP·Filed 1979·Granted Dec 2, 1980·55 cites·11 claims
- 0384US4078173ALight amplitude control system for position and motion transducersPERTEC COMPUTER CORP·Filed 1976·Granted Mar 7, 1978·35 cites·16 claims
- 0483US4357707ADigital phase lock loop for flexible disk data recovery systemPERTEC COMPUTER CORP·Filed 1979·Granted Nov 2, 1982·48 cites·23 claims
- 0579US4064561ACRT key station which is responsive to centralized controlPERTEC COMPUTER CORP·Filed 1976·Granted Dec 20, 1977·25 cites·4 claims
- 0679US4055814APhase locked loop for synchronizing VCO with digital data pulsesPERTEC COMPUTER CORP·Filed 1976·Granted Oct 25, 1977·40 cites·4 claims
- 0778US4371904AFlexible magnetic disk systemPERTEC COMPUTER CORP·Filed 1980·Granted Feb 1, 1983·25 cites·8 claims
- 0872US4078192ASynthesizer for multiphase waveformsPERTEC COMPUTER CORP·Filed 1976·Granted Mar 7, 1978·35 cites·21 claims
- 0969US4244109AApparatus for mounting and aligning printed circuit boardPERTEC COMPUTER CORP·Filed 1976·Granted Jan 13, 1981·23 cites·5 claims
- 1069US4012791ADisk drive apparatusPERTEC COMPUTER CORP·Filed 1974·Granted Mar 15, 1977·14 cites·9 claims
- 1167US4207601ATransient temperature compensation for moving head disk drivePERTEC COMPUTER CORP·Filed 1978·Granted Jun 10, 1980·15 cites·8 claims
- 1264US4167772ACircuit board mounting meansPERTEC COMPUTER CORP·Filed 1978·Granted Sep 11, 1979·26 cites·5 claims
- 1353US4205357ADisk drive unit incorporating a field-replaceable fixed disk assemblyPERTEC COMPUTER CORP·Filed 1978·Granted May 27, 1980·9 cites·9 claims
- 1446US4563653AServo preamplifier and demodulator chain using transconductance balanced modulatorsPERTEC COMPUTER CORP·Filed 1982·Granted Jan 7, 1986·7 cites·2 claims
- 1540US4301416AServo preamplifier and demodulator chain using transconductance balanced modulatorsPERTEC COMPUTER CORP·Filed 1979·Granted Nov 17, 1981·4 cites·9 claims
- 1634US4425534ALinear motor velocity sensorPERTEC COMPUTER CORP·Filed 1981·Granted Jan 10, 1984·5 cites·4 claims
- 1729US4384309AClosed loop servo demodulator for positioning a servo headPERTEC COMPUTER CORP·Filed 1981·Granted May 17, 1983·1 cites·2 claims
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