Assignee
MATSUSHITA COMMUNICATION IND
US·18 granted patents·554 citations·filing 1979–1997
Top patents by PatentIndex Score
18 records- 0187US5500856ATransmission de-correlator for eliminating interference in a CDMA communication systemMATSUSHITA COMMUNICATION IND·Filed 1994·Granted Mar 19, 1996·87 cites·3 claims
- 0283US4852148ARadio telephone systemMATSUSHITA COMMUNICATION IND·Filed 1988·Granted Jul 25, 1989·50 cites·7 claims
- 0381US5875388ACrystal oscillator with automatic compensation for aging and temperatureMATSUSHITA COMMUNICATION IND·Filed 1997·Granted Feb 23, 1999·75 cites·16 claims
- 0479US5499392AFilter having a variable response time for filtering an input signalMATSUSHITA COMMUNICATION IND·Filed 1994·Granted Mar 12, 1996·33 cites·14 claims
- 0568US5659884ASystem with automatic compensation for aging and temperature of a crystal oscillatorMATSUSHITA COMMUNICATION IND·Filed 1995·Granted Aug 19, 1997·38 cites·13 claims
- 0668US5659893ATransmission circuit with improved gain control loopMATSUSHITA COMMUNICATION IND·Filed 1994·Granted Aug 19, 1997·27 cites·11 claims
- 0768US5263197ADual port oscillator for two-stage direct conversion receiverMATSUSHITA COMMUNICATION IND·Filed 1991·Granted Nov 16, 1993·54 cites·20 claims
- 0859US5635943ATransceiver having retractable antenna assemblyMATSUSHITA COMMUNICATION IND·Filed 1995·Granted Jun 3, 1997·29 cites·14 claims
- 0956US5410587AUltrasonic radiotelephone for an automobileMATSUSHITA COMMUNICATION IND·Filed 1993·Granted Apr 25, 1995·50 cites·4 claims
- 1050US5960336AData receiving apparatusMATSUSHITA COMMUNICATION IND·Filed 1997·Granted Sep 28, 1999·23 cites·4 claims
- 1147US5764107AHighly responsive automatic output power control based on a differential amplifierMATSUSHITA COMMUNICATION IND·Filed 1996·Granted Jun 9, 1998·12 cites·8 claims
- 1247US5473615ADigital supervisory audio tone detectorMATSUSHITA COMMUNICATION IND·Filed 1993·Granted Dec 5, 1995·14 cites·37 claims
- 1345US5414385ADual mode FM quadrature detectorMATSUSHITA COMMUNICATION IND·Filed 1994·Granted May 9, 1995·11 cites·15 claims
- 1444US6011517ASupporting and holding device for strip metal RF antennaMATSUSHITA COMMUNICATION IND·Filed 1997·Granted Jan 4, 2000·16 cites·18 claims
- 1541US6032029AReceiver selecting either a first demodulated signal or a second demodulated signal in accordance with characteristics of a received signalMATSUSHITA COMMUNICATION IND·Filed 1997·Granted Feb 29, 2000·13 cites·14 claims
- 1640US5337020ADifferential radio frequency detector/comparator for power level controlMATSUSHITA COMMUNICATION IND·Filed 1993·Granted Aug 9, 1994·7 cites·8 claims
- 1739US5588203ANozzle for a vacuum mounting headMATSUSHITA COMMUNICATION IND·Filed 1995·Granted Dec 31, 1996·10 cites·17 claims
- 1836US4262312AMagnetic recording and printing device for card mediumsMATSUSHITA COMMUNICATION IND·Filed 1979·Granted Apr 14, 1981·5 cites·3 claims
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