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James F Cole, James H McNamara: Low-power, standby mode computer. Grid Systems Corporation, Townsend and Townsend, November 10, 1992: US05163153 (180 worldwide citation)

A method and apparatus for configuring a computer in a low-power mode are provided. In the low-power mode, dynamic random access memory is refreshed by a battery powered system in order to maintain the memory contents. Low-power mode is entered by saving an interrupt mask and by disabling interrupts ...


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Jeff C Hawkins, Ken L Dulaney, John J Daly, James H McNamara, James F Cole: Hand held computer. Grid Systems Corporation, Townsend & Townsend, July 21, 1992: US05133076 (137 worldwide citation)

A hand held computer of a type used for such activities as taking inventory, recording signatures on delivery, keeping a route agenda, etc. has a large screen and preferably is without a built in keyboard. The tablet type computer is thin in profile, light in weight and is easily carried and used. P ...


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John J Daly, James H McNamara: Connection between portable computer components. GRID Systems Corporation, Townsend & Townsend, November 13, 1990: US04969830 (135 worldwide citation)

A hand held portable computer is secured to a peripheral computer component or expansion module in a snap-on arrangement which automatically effects engagement of bus connectors between the two components. The hand held computer has four openings in its back or under side. Two of the slot-like openi ...


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James F Cole, James H McNamara: Low-power, standby mode computer. Grid Systems Corporation, Townsend and Townsend, August 31, 1993: US05241680 (125 worldwide citation)

A method and apparatus for configuring a computer in a low-power mode are provided. In the low-power mode, dynamic random access memory is refreshed by a battery powered system in order to maintain the memory contents. Low-power mode is entered by saving an interrupt mask and by disabling interrupts ...


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James F Cole, James H McNamara: Low-power, standby mode computer. Grid Systems Corporation, Townsend and Townsend, August 20, 1991: US05041964 (107 worldwide citation)

A method and apparatus for configuring a computer in a low-power mode are provided. In the low-power mode, dynamic random access memory is refreshed by a battery powered system in order to maintain the memory contents. Low-power mode is entered by saving an interrupt mask and by disabling interrupts ...


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Kenneth L Dulaney, Jeffrey C Hawkins, Lindsay Sanford, James H McNamara: Split screen keyboard emulator. Tandy Corporation, Townsend & Townsend, July 9, 1991: US05031119 (38 worldwide citation)

A system for providing keystroke data to an application program without utilizing a keyboard that simultaneously displays application program graphics and a keyboard representation on different segments of a screen. Keys are selected by touching the screen at the location of the graphic representati ...


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