Title:
FREQUENCY CONVERSION IN TOUCH SENSOR
Document Type and Number:
Japanese Patent JP2018067339
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a user input system which provides update rate to be decelerated in a fast multi-touch sensor.SOLUTION: A touch sensitive device includes: a touch interface having rows and columns; a signal generator for generating a plurality of unique orthogonal signals on at least a plurality of the rows, respectively; and a frequency converter. The frequency converter receives a first touch signal present on at least one of the plurality of columns, converts the first touch signal to a second signal having a second center frequency, and outputs the second signal. A touch processor identifies touch on the touch interface by processing the second signal having the second center frequency and outputting touch event data.SELECTED DRAWING: Figure 42
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Inventors:
DARREN LEIGH
CLIFTON FORLINES
DANIEL WIGDOR
STEVEN LEONARD SANDERS
CLIFTON FORLINES
DANIEL WIGDOR
STEVEN LEONARD SANDERS
Application Number:
JP2017242253A
Publication Date:
April 26, 2018
Filing Date:
December 18, 2017
Export Citation:
Assignee:
TACTUAL LABS CO
International Classes:
G06F3/041; G01B7/00
Domestic Patent References:
| JP2013143152A | 2013-07-22 | |||
| JP2011013944A | 2011-01-20 | |||
| JP2013531327A | 2013-08-01 |
Foreign References:
| US20110096487A1 | 2011-04-28 | |||
| US20130106759A1 | 2013-05-02 |
Attorney, Agent or Firm:
Kazuhiro Kiyohara
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