Title:
ENVIRONMENT SENSOR
Document Type and Number:
Japanese Patent JP2023050102
Kind Code:
A
Abstract:
To provide an environment sensor circuit for a portable type device which performs a communication in wireless.SOLUTION: The present invention relates to an environment sensor circuit for a portable connection wireless device. This circuit comprises: an electrostatic capacitance type approaching sensor that is constructed for determining whether or not a user is approached to its body in a wireless device portable connected by detecting a fluctuation of an electrostatic capacitance of an electrode in an electric connection with the environment sensor circuit; and a magnetic probe that provides a signal which is compared with a magnetic field strength. Here, an integration circuit comprises an analog-digital converter that is constructed so as to generate a magnetic field digital value expressing an approaching digital value expressing the electrostatic capacitance of the electrode and the magnetic field digital value expressing the magnetic field strength, and the integration circuit further comprises a digital processing part that is constructed so as to suppress unnecessary noises and drift component from the approaching digital value and the magnetic field digital value.SELECTED DRAWING: Figure 1
Inventors:
CHAOUKI ROUAISSIA
Application Number:
JP2022133318A
Publication Date:
April 10, 2023
Filing Date:
August 24, 2022
Export Citation:
Assignee:
SEMTECH CORP
International Classes:
H03K17/945; G01R33/02; G01R33/07; H01H36/00; H03K17/95; H03K17/955
Attorney, Agent or Firm:
Esaki Mitsufumi
Blacksmith Minoru Sawa
Shinsuke Nakamura
Ishida Taisei
Tomoko Suzuki
Blacksmith Minoru Sawa
Shinsuke Nakamura
Ishida Taisei
Tomoko Suzuki
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