Inventor · disambiguated record
Harold R. Walker
Also filed as: WALKER HAROLD · WALKER HAROLD R
11 granted patents·2 pending applications·2,285 citations·filing 1980–2007
94Inventor score
Top patents by PatentIndex Score
13 records- 0197US4816904ATelevision and market research data collection system and methodCONTROL DATA CORP·Filed 1987·Granted Mar 28, 1989·722 cites·10 claims
- 0297US4658290ATelevision and market research data collection system and methodCTBA ASSOCIATES·Filed 1984·Granted Apr 14, 1987·401 cites·11 claims
- 0397US4546382ATelevision and market research data collection system and methodCTBA ASSOCIATES·Filed 1983·Granted Oct 8, 1985·529 cites·27 claims
- 0494US6748022B1Single sideband suppressed carrier digital communications method and systemFiled 2000·Granted Jun 8, 2004·128 cites·34 claims
- 0591US4742532AHigh speed binary data communication systemWALKER HAROLD R·Filed 1986·Granted May 3, 1988·142 cites·19 claims
- 0685US5185765AHigh speed data communication system using phase shift key codingWALKER HAROLD R·Filed 1990·Granted Feb 9, 1993·151 cites·22 claims
- 0780US6445737B1Digital modulation device in a system and method of using the sameFiled 2002·Granted Sep 3, 2002·44 cites·25 claims
- 0878US5930303ADigital modulation employing single sideband with suppressed carrierFiled 1997·Granted Jul 27, 1999·129 cites·31 claims
- 0972US7424065B2Apparatus and method for ultra narrow band wireless communicationsWALKER HAROLD R·Filed 2003·Granted Sep 9, 2008·17 cites·27 claims
- 1065US7268638B2Apparatus and method for data rate multiplicationWALKER HAROLD R·Filed 2003·Granted Sep 11, 2007·10 cites·20 claims
- 1156US4355205ATelemetering systemLOWE FRANK E·Filed 1980·Granted Oct 19, 1982·12 cites·5 claims
- 1244US2007237218A1Apparatus and method for ultra narrow band communicationsWALKER HAROLD R·Filed 2007·Application pending·0 cites
- 1335US2003012301A1Method and apparatus for improved cellular telephone communicationsFiled 2001·Application pending·0 cites
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