1
Rudolf Maarten Bolle, Sharon Louise Nunes, Sharathchandra Pankanti, Nalini Kanta Ratha, Barton Allen Smith, Thomas Guthrie Zimmerman: Method for biometric-based authentication in wireless communication for access control. International Business Machines Corporation, Randy W Lacasse, Ramraj Soundararajan, Lacasse & Associates, November 16, 2004: US06819219 (341 worldwide citation)

Smart cards systems that are utilized in biometric authentication are slow in processing and have the cards themselves have the added disadvantage of being misplaced or lost. Moreover, storing biometric data (on a database) over a network poses security issues that in extreme instances can be compro ...


2
Joseph Grover Gordon II, Mark Whitney Hart, Andrew Marian Homola, Dennis Richard McKean, Lawrence Brian Schein, Barton Allen Smith, Sally Ann Swanson: Electrophoretic display. International Business Machines Corporation, Robert B Martin, February 16, 1999: US05872552 (314 worldwide citation)

The invention relates to an ambient light electrophoretic display comprising a plurality of cells containing a suspension of charged pigment particles in a light-transmissive fluid. Each cell comprises a light-transmissive front window, a nonobstructing collecting electrode and counter electrode dis ...


3
Joseph Grover Gordon II, Mark Whitney Hart, Andrew Marian Homola, Dennis Richard McKean, Lawrence Brian Schein, Barton Allen Smith, Sally Ann Swanson: Electrophoretic display. International Business Machines Corporation, Robert B Martin, April 28, 1998: US05745094 (240 worldwide citation)

The invention relates to an ambient light electrophoretic display comprising a plurality of cells containing a suspension of charged pigment particles in a light-transmissive fluid. Each cell comprises a light-transmissive front window, a nonobstructing collecting electrode and counter electrode dis ...


4
Barton Allen Smith, Thomas Guthrie Zimmerman: Digital pen using interferometry for relative and absolute pen position. International Business Machines Corporation, John L Rogitz, July 15, 2003: US06592039 (59 worldwide citation)

A digital pen that has an ink writing tip includes a laser on a pen body that directs light toward paper across which the writing tip is stroked. A diffraction grating reflects a reference beam and passes a scattered beam from the substrate toward translation detectors, which consequently receive in ...


5
Gregory Fraser Russell, Barton Allen Smith, Thomas Guthrie Zimmerman: Digital pen using ultrasonic tracking. International Business Machines Corporation, John L Rogitz, March 9, 2004: US06703570 (45 worldwide citation)

A digital pen that has a writing tip includes an ultrasonic (US) transducer on a pen body that generates frames of US pulses toward a receiver base in response to an infrared (IR) synchronizing signal from the base. The first pulse of a frame is adjusted by a modulo of the US period &tgr; when the t ...


6
Thomas G Zimmerman, Barton Allen Smith: Capacitive pointing stick apparatus for symbol manipulation in a graphical user interface. International Business Machines Corporation, James C Pintner, Michael J Buchenhorner, Fleit Kain Gibbons Gutman & Bongini P L, February 6, 2001: US06184865 (24 worldwide citation)

A structure is provided for a user-manipulable input device, such as an in-keyboard, joystick-type device, for allowing a user to provide input to a computer graphical user interface (GUI). The structure includes a user-manipulable, articulating member, and a plurality of stationary, electrically co ...


7
Thomas G Zimmerman, Barton Allen Smith: Capacitive pointing stick apparatus with floating conductive cone for symbol manipulation in a graphical user interface. International Business Machines Corporation, Jon A Gibbons, Marc D McSwain, Fleit Kain Gibbons Gutman & Bongini P L, August 20, 2002: US06437772 (22 worldwide citation)

A structure is provided for a user-manipulable input device, such as an in-keyboard, joystick-type device, for allowing a user to provide input to a computer graphical user interface (GUI). The structure includes a user-manipulable, articulating member, and a plurality of stationary, electrically co ...


8
Kim Wesley May, Edwin Joseph Selker, Barton Allen Smith: Low noise circuit board for trackpoint pointing device. International Business Machines Corporation, Robert Buckley, February 27, 2001: US06195082 (19 worldwide citation)

A computer pointing device on a single, small printed wiring board includes all electronics necessary for providing a standard mouse-type output signal. The pointing device uses a balanced bridge strain gauge isometric sensor having a manipulation lever for user input. The computer pointing device i ...


9
Edwin Joseph Selker, Barton Allen Smith, Todd Clossen Wyant: Pointing device with reciprocating grip cap. International Business Machines Corporation, Romualdas Strimaitis, James C Pintner, February 9, 1999: US05870082 (10 worldwide citation)

A user-manipulable in-keyboard pointing device is provided, for use in portable electronic apparatus such as laptop computers, for allowing the user to move a symbol, such as a cursor, around a GUI display. For small laptops whose displays close over their keyboards, such as in clamshell fashion, th ...


10
Jonathan Noble Betts, John Robert Haggis, Edwin Joseph Selker, Barton Allen Smith: Floating triangle analog-to-digital conversion system and method. International Business Machines Corporation, Gray Cary Ware Freidenrich, April 13, 1999: US05894282 (4 worldwide citation)

An analog-to-digital converter utilizing pulse width modulation and ramp and count techniques. A microcontroller generates the pulse width modulated digital signal which is converted into a floating triangle. When the floating triangle signal is equal to the analog, input signal, a comparator genera ...