Electronic device, method for controlling electronic device, and program
AssigneeKYOCERA Corporation
InventorsTooru Sahara, Jun Kuroda, Kenji Yamamoto, Takuya Homma, Fangwei Tong
Life of this patent
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Abstract
An electronic device includes a transmission antenna, a reception antenna, and a controller. The transmission antenna transmits a transmission wave. The reception antenna receives a reflected wave that is the transmission wave having been reflected. The controller detects a heartbeat of a subject that reflects the transmission wave, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The controller forms a beam of the transmission wave in a direction of the subject to detect a heartbeat of the subject.
Claims9
An electronic device comprising:
- a transmission antenna unit including phase control units and a plurality of transmission antennas and configured to transmit a transmission wave;
- a reception antenna configured to receive a reflected wave that is the transmission wave having been reflected;
- and
- a controller configured to detect a heartbeat of a subject that reflects the transmission wave, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave, wherein
- the controller is configured to form a beam of the transmission wave by controlling a phase of each of the phase control units to form the beam of the transmission wave in a direction of the subject to detect a heartbeat of the subject, and
- the controller is configured to, in response to detection of body movement of a human body serving as the subject, control the beam of the transmission wave to track the body movement by calculating an inverse matrix of a covariance matrix of an input signal, and a weight of the beam of the transmission wave by using a value calculated by using a correlation value between a phase and an amplitude of each antenna.
A method for controlling an electronic device, comprising:
- transmitting a transmission wave from a transmission unit including phase control units and a plurality of transmission antennas;
- receiving, from a reception antenna, a reflected wave that is the transmission wave having been reflected;
- detecting a heartbeat of a subject that reflects the transmission wave, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave;
- forming a beam of the transmission wave by controlling a phase of each of the phase control units to form the beam of the transmission wave in a direction of the subject to detect a heartbeat of the subject;
- and
- in response to detection of body movement of a human body serving as the subject, controlling the beam of the transmission wave to track the body movement by calculating an inverse matrix of a covariance matrix of an input signal, and a weight of the beam of the transmission wave by using a value calculated by using a correlation value between a phase and an amplitude of each antenna.
A program for causing an electronic device to execute:
- transmitting a transmission wave from a transmission unit including phase control units and a plurality of transmission antennas;
- receiving, from a reception antenna, a reflected wave that is the transmission wave having been reflected;
- detecting a heartbeat of a subject that reflects the transmission wave, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave;
- forming a beam of the transmission wave by controlling a phase of each of the phase control units to form the beam of the transmission wave in a direction of the subject to detect a heartbeat of the subject;
- and
- in response to detection of body movement of a human body serving as the subject, controlling the beam of the transmission wave to track the body movement by calculating an inverse matrix of a covariance matrix of an input signal, and a weight of the beam of the transmission wave by using a value calculated by using a correlation value between a phase and an amplitude of each antenna.
Dependencies are inferred from the claim text.