1
John P Lappington, Susan K Marshall: Transaction based interactive television system. Zing Systems, Fliesler Dubb Meyer & Lovejoy, August 30, 1994: US05343239 (479 worldwide citation)

An interactive television system where interactive information is inserted in the vertical blanking interval of a standard television signal. The signal is received and decoded by a stetop decoder which sends the decoded signal via an infrared signal to a handheld device. The viewer using the handhe ...


2
John S Hendricks, Alfred E Bonner, John P Lappington, Richard E Wunderlich: Digital cable headend for cable television delivery system. Discovery Communications, Dorsey & Whitney, October 28, 1997: US05682195 (367 worldwide citation)

The present invention provides greater capability and flexibility than existing cable headends. Specifically, the invention comprises a modular design for a cable headend and a combiner component for cable headend. The invention is particularly useful in cable television program delivery systems tra ...


3
John P Lappington, Susan K Marshall, Wayne Y Yamamoto, Cameron A Wilson: Transaction based interactive television system. Thomson Multimedia, Jeffrey D Carter, March 31, 1998: US05734413 (288 worldwide citation)

An interactive television system where interactive information is inserted in the vertical blanking interval of a standard television signal or some other appropriate medium. The signal is received and decoded by a settop device which sends the decoder signal, via an infrared signal, to a handheld d ...


4
John P Lappington, Susan K Marshall, Wayne Y Yamamoto, Cameron A Wilson, Eric C Berkobin, Richard S Simons: Interactive television security through transaction time stamping. Zing Systems, Fliesler Dubb Meyer & Lovejoy, May 21, 1996: US05519433 (189 worldwide citation)

A system for providing security on an interactive television system. Two sets of interactive data, with time stamps, are separately sent to a remote location. At the remote location, the time stamps are checked against a remote clock, a time difference being noted for both sets of data. The two time ...


5
John P Lappington, Susan K Marshall: Transaction based interactive television system. Zing Systems, Fliesler Dubb Meyer & Lovejoy, June 11, 1996: US05526035 (174 worldwide citation)

An interactive television system where interactive information is inserted in the vertical blanking interval of a standard television signal. The signal is received and decoded by a settop decoder which sends the decoded signal via an infrared signal to a handheld device. The viewer using the handhe ...


6
John P Lappington, Susan K Marshall, Wayne Y Yamamoto, Cameron A Wilson, Eric C Berkobin, Richard S Simons: Interactive television security through transaction time stamping. Thomson Multimedia, Jeffrey D Carter, June 9, 1998: US05764275 (117 worldwide citation)

A system for providing security on an interactive television system. Two sets of interactive data, with time stamps, are separately sent to a remote location. At the remote location, the time stamps are checked against a remote clock, a time difference being noted for both sets of data. The two time ...


7
John P Lappington, Susan K Marshall, Wayne Y Yamamoto, Cameron A Wilson: Transaction based interactive television system. Thomson Multimedia, Gregory P Gadson, June 10, 1997: US05638113 (107 worldwide citation)

An interactive television system where interactive information is inserted in the vertical blanking interval of a standard television signal or some other appropriate medium. The signal is received and decoded by a settop device which sends the decoder signal, via an infrared signal, to a handheld d ...


8
John P Lappington: Mass production of electronic control units for engines. Chrysler Corporation, Baldwin & Newtson, April 11, 1978: US04084240 (26 worldwide citation)

An electronic engine control system comprises a central microprocessor integrated circuit, a program memory integrated circuit, and a programmable read only memory integrated circuit. The central microprocessor integrated circuit carries out calculations used in controlling an event associated with ...


9
John P Lappington: Programmable read only memory for electronic engine control. Chrysler Corporation, Baldwin & Newtson, December 5, 1978: US04128900 (21 worldwide citation)

An electronic engine control system comprises a central microprocessor integrated circuit, a program memory integrated circuit, and a programmable read only memory integrated circuit. The central microprocessor integrated circuit carries out calculations used in controlling an event associated with ...


10
John P Lappington, Leroy Shafer: Input sensor circuit for a digital engine controller. Chrysler Corporation, Baldwin & Newtson, November 29, 1977: US04060714 (17 worldwide citation)

In one embodiment, a circuit parameter of a sensor varies in accordance with an input useful in controlling an event associated with operation of an engine, for example, spark timing. The sensor is connected in an input sensing circuit characterized by a first order differential equation exhibiting ...



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