Title:
電磁誘導型座標測位装置
Document Type and Number:
Japanese Patent JP6968242
Kind Code:
B2
Abstract:
An electromagnetic induction type coordinate positioning apparatus includes a first induction coil, a second induction coil, a first signal processing circuit, a second signal processing circuit, and a control circuit. The first induction coil and the second induction coil respectively generate a first induction signal and a second induction signal when a pointer device comes close. The first signal processing circuit performs a first signal processing procedure on one of the first induction signal and the second induction signal. The second signal processing circuit performs a second signal processing procedure on the other one of the first induction signal and the second induction signal. The control circuit calculates position information of the pointer device according to the first induction signal and the second induction signal that have been respectively processed by the first signal processing procedure and the second signal processing procedure.
Inventors:
Statement
Application Number:
JP2020136881A
Publication Date:
November 17, 2021
Filing Date:
August 14, 2020
Export Citation:
Assignee:
Shenzhen-Public Innovation Technology Co., Ltd.
International Classes:
G06F3/046; G06F3/041
Domestic Patent References:
| JP4288613A | ||||
| JP4361318A | ||||
| JP7129305A | ||||
| JP991077A |
Attorney, Agent or Firm:
Sakuo Yamaguchi
Nobuyuki Oshima
Shinjiro Yamaguchi
Nobuyuki Oshima
Shinjiro Yamaguchi