51
Ronald V McBean Sr: Instrumentation system with multiple sensor modules providing calibration date information. Cahill Sutton & Thomas, November 15, 1994: US05365462 (66 worldwide citation)

An instrumentation system includes a hand-held computer-based measuring meter having a visual display and a plurality of individual sensor modules that can be selectively coupled to the measuring meter for measuring one of a variety of parameters such as temperature, pressure, or the like. Each sens ...


52
Tony Pingfu Saye: Interchangeable modular arrangement of computer and accessory devices. Casio Computer, Skjerven Morrill MacPherson Theodore P Lopez, December 4, 2001: US06327152 (60 worldwide citation)

A structure wherein a hand held computer module can be conveniently and interchangeably coupled to accessory devices. The hand held computer module is detachably connected to a first accessory module by a first interlocking structure. The computer module includes the first interlock mechanism and th ...


53
Stephen A Garrett, Mark B Smith, Shelton Louie: Detachable hand-held computer handle. GSL Solutions, Ipsolon, March 23, 2004: US06708887 (59 worldwide citation)

A portable, hand-held computer handle that may be detachable secured to a conventional hand-held computer such as a personal digital assistant or the like. The handle preferably includes a substantially planar hand-held computer-mounting portion with an ergonomically-shaped joystick-style handle por ...


54
Shinichi Sunakawa, Kazutoshi Shimada, Eisaku Tatsumi, Noriyuki Suzuki, Katsuhiko Nagasaki: Information processing apparatus and control method thereof having user character recognition. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, July 1, 1997: US05644653 (58 worldwide citation)

A hand-held computer with an input pen capable of handwriting recognition. Characters are inputted by a user's manual operation with the input pen on a transparent coordinate input plate in front of a display screen. The computer discriminates pen-input characteristic of the user, and selects a char ...


55
Samuel Yin Lun Pun, John M Conrad, Eun Kyong Paek, Changshi Xu: System and method for text entry on a reduced keyboard. Zi Corporation of Canada, Cesari & McKenna, August 14, 2007: US07256769 (55 worldwide citation)

A system and method for efficient Asian character text input into a reduced keypad machine such as a word processor, telephone, hand-held computer, or personal computer is provided. The system comprises a data entry keypad associated with a monitor, and a disambiguation process supporting multiple k ...


56
Jae Choeul Oh: Portable computer system having application program launcher for low power consumption and method of operating the same. Samsung Electronics, Robert E Bushnell Esq, August 3, 2004: US06771250 (55 worldwide citation)

A hand-held computer is described, which comprises an application program launcher having a multi-point switch. Using the launcher, a user selects and executes one of several application programs registered in a program selection menu. If a launching signal is generated from the launcher when the ha ...


57
John J Daly: Conductive stylus storage for a portable computer. GRID Systems Corporation, Townsend and Townsend, May 22, 1990: US04927986 (51 worldwide citation)

A hand held computer having a display screen which accepts writing from an electronic pen-type stylus has a cord which tethers the stylus to the computer. At the periphery of the computer is a flange or ledge forming a peripheral groove within which the cord resides when the stylus is stored in anot ...


58
Daniel K McDonough: Heart rate monitor for swimmers. B Craig Killough, Ernest B Lipscomb III, August 31, 2010: US07787943 (49 worldwide citation)

There provided a heart rate monitor that includes a pair of electrodes, a program control panel having a power supply, a vibration feedback module for advising the user when predetermined heart rates have been reached, and a data retrieval member. The electrodes are arranged to be in contact with th ...


59
Peter Warren: Handheld input/output device providing enhanced user interface for a mobile telephone. Michael J Mehrman, Mehrman Law Office PC, January 13, 2009: US07477919 (47 worldwide citation)

A keyboard and a microphone for inputting information, a display screen and a speaker for viewing or hearing information, and a processor, all mounted to or within a housing in the form of a laptop computer or hand-held computer. A phone interface has a slot, channel, or other support member for hol ...


60
Jayanth Nagaraj: Air-conditioning servicing system and method. Copeland, May 29, 2002: EP1209427-A1 (46 worldwide citation)

An air conditioning servicing system utilizes a number of sensors which monitor various operating parameters of a malfunctioning air-conditioning system. These operating parameters are provided to a hand held computer along with an identifier of the malfunctioning air-conditioning system. The hand h ...