Title:
センサコントローラ、受信側の装置、位置検出システム、及び、センサコントローラから受信側の装置に対してデータの値を送信する方法
Document Type and Number:
Japanese Patent JP6868720
Kind Code:
B2
Abstract:
A sensor controller is provided for use in a position detector for detecting a position of a position indicator on a touch surface. The sensor controller includes a microprocessor for outputting a value of a symbol to be sent to the position indicator. The symbol takes multiple values. The sensor controller includes a transmitter coupled to the microprocessor for generating a transmission signal including a chip string CN1 produced by cyclically shifting a code string PNa having autocorrelation characteristics by a shift quantity based on the value of the symbol to be sent, and sending the generated transmission signal to the position indicator via the touch surface. A higher bit rate can be obtained for a given chip rate compared with the prior art in which only 1 bit can be expressed by one code string.
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Inventors:
Yasuo Oda
Sadao Yamamoto
Sadao Yamamoto
Application Number:
JP2020031229A
Publication Date:
May 12, 2021
Filing Date:
February 27, 2020
Export Citation:
Assignee:
Wacom Co., Ltd.
International Classes:
G06F3/03; G06F3/041; G06F3/044; H04B1/7095
Domestic Patent References:
| JP2003338775A |
Foreign References:
| WO2014185523A1 | ||||
| WO2014109138A1 |
Attorney, Agent or Firm:
Yasuyuki Kurose