公开(公告)号：JPH11353107A

公开(公告)日：1999-12-24

申请号：JP1417899

申请日：1999-01-22

Applicant: ST MICROELECTRONICS INC

Inventor： FERRARI ALBERTO ,  TARTAGNI MARCO

IPC: G06F3/044 ,  A61B5/117 ,  G01B7/28 ,  G06F3/033 ,  G06F3/038 ,  G06F3/041 ,  G06F3/048 ,  G06K9/00 ,  G09G5/08 ,  G06F3/03

Abstract: PROBLEM TO BE SOLVED: To obtain a capacity type touch pad in which cursor/pointer screen movement can be generated by the position of a finger tip on the surface by calculating a center of gravity output signal by making the output signal of a cell for detection of a 1st array as the function of the position of the finger tip and connecting it to a resistance node of a 2nd array. SOLUTION: A two-dimensional(2D) electronic signal output i.e., the pattern of an array which encodes the contact function of a finger tip on the surface on the array is injected to a 2D pseudo resistance circuit network 301. This circuit network 301 detects the center of gravity of the inputted array output signal i.e., a 1st moment and the mass i.e., a 2nd moment. A center of gravity and a mass function are calculated at the same time by this constitution. Electrically outputting terminals 302 and 303 give an X- and a Y-directional component determining a cursor/pointer screen movement direction that a user desires, respectively. This pseudo resistance circuit network 301 can be embedded in a sensor array by using integrated circuit technology and thereby, an integrated device can be obtained.

公开(公告)号：DE69930774T2

公开(公告)日：2007-02-15

申请号：DE69930774

申请日：1999-01-20

Applicant: ST MICROELECTRONICS INC

Inventor： FERRARI ALBERTO ,  TARTAGNI MARCO

IPC: G06F3/044 ,  A61B5/117 ,  G01B7/28 ,  G06F3/033 ,  G06F3/038 ,  G06F3/041 ,  G06F3/048 ,  G06K9/00 ,  G09G5/08

Abstract: A plurality N of capacitance sensing cells are arranged in a row/column array top to cooperate with a fingertip and produce an output signal that controls the movement of a cursor/pointer across a display screen. The output of each individual sensing cell is connected to the corresponding individual node of a resistor array that has N nodes arranged in a similar row/column array. A centroid output of the resistor nodes in row configuration provides an output signal for control of cursor movement in a row direction. A centroid output of the resistor nodes in column configuration provides an output signal for control of cursor movement in an orthogonal column direction. A mass signal output of the row/column resistor mode array provides a switch on/off signal.

公开(公告)号：DE69930774D1

公开(公告)日：2006-05-24

申请号：DE69930774

申请日：1999-01-20

Applicant: ST MICROELECTRONICS INC

Inventor： FERRARI ALBERTO ,  TARTAGNI MARCO

IPC: G06F3/044 ,  A61B5/117 ,  G01B7/28 ,  G06F3/033 ,  G06F3/038 ,  G06F3/041 ,  G06F3/048 ,  G06K9/00 ,  G09G5/08

Abstract: A plurality N of capacitance sensing cells are arranged in a row/column array top to cooperate with a fingertip and produce an output signal that controls the movement of a cursor/pointer across a display screen. The output of each individual sensing cell is connected to the corresponding individual node of a resistor array that has N nodes arranged in a similar row/column array. A centroid output of the resistor nodes in row configuration provides an output signal for control of cursor movement in a row direction. A centroid output of the resistor nodes in column configuration provides an output signal for control of cursor movement in an orthogonal column direction. A mass signal output of the row/column resistor mode array provides a switch on/off signal.