Head mounted display apparatus, information terminal, and methods and information storage devices for controlling head mounted display apparatus and information terminal

An information terminal comprising:

• a transmitter-receiver configured to transmit and receive communication with a head mounted display apparatus;
• an information terminal-side sensor configured to sense a value of an information terminal-side information related to the information terminal;
• and
• a processor configured, in a first control mode, to:
• control the transmitter-receiver to receive a first value of a head posture information of a head of a user sensed by the head mounted display apparatus, and
• control the transmitter-receiver to transmit a first control mode information to the head mounted display apparatus, wherein the first control mode information is determined based on the received first value of the head posture information and the value of the information terminal-side information sensed by the information terminal-side sensor.

A system comprising:

• a head mounted display (HMD) apparatus;
• and
• an information terminal (IT),
• wherein the HMD apparatus comprises:
• an HMD-side transmitter-receiver configured to transmit and receive communication with the IT;
• a head posture information sensor configured to sense a value of a head posture information of a head of a user;
• a display configured to display an image in a display area;
• and
• an HMD-side processor configured to set the image to be displayed in the display area,
• wherein the IT comprises:
• an IT-side transmitter-receiver configured to transmit and receive communication with the HMD apparatus;
• an IT-side sensor configured to sense a value of an IT-side information related to the IT;
• and
• an IT-side processor,
• wherein in a first control mode:
• the HMD-side processor is configured to control the HMD-side transmitter-receiver to transmit a first value of the head posture information to the IT,
• the IT-side processor is configured to control the IT-side transmitter-receiver to receive the first value of the head posture information,
• the IT-side processor is configured to control the IT-side transmitter-receiver to transmit a first control mode information to the HMD apparatus, wherein the first control mode information is determined based on the received first value of the head posture information and the value of the IT-side information sensed by the IT-side sensor,
• the HMD-side processor is configured to control the HMD-side transmitter-receiver to receive the first control mode information, and
• the HMD-side processor is configured to set the image to be displayed in the display area based on the first control mode information, and
• wherein in a second control mode, the HMD-side processor is configured to set the image to be displayed in the display area based on a second value of the head posture information.