HID report rate increase while keeping a low power consumption

A method for communications between a displacement input device and a host, the method comprising:

• receiving, at the host, a displacement from the displacement input device;
• determining, at the host, projected future positions for the displacement input device at multiple future times;
• displaying, on a host display, the projected future positions at the multiple future times;
• receiving, at the host, an updated displacement from the displacement input device;
• upon receipt of the updated displacement, calculating a projection curve of projected future positions based on the updated displacement;
• moving a starting point of the projection curve to a midpoint between a position of the updated displacement and a current position based on a previous projected position at the time of the updated displacement;
• determining a transition line between the current position and an intersection point on the projection curve one time step before a new updated displacement measurement is expected;
• and
• determining, at the host, new projected future positions for the displacement input device at multiple future times along the transition line.

A system for communications between a displacement input device and a host, the system comprising:

• a displacement input device;
• a displacement sensor mounted in the displacement input device;
• a host;
• a processor mounted at the host;
• and
• a memory coupled to the processor, the memory including non-transitory computer readable medium having stored thereon software instructions that, when executed by the processor, cause the processor to execute steps comprising:
• receiving, at the host, a displacement from the displacement input device;
• determining, at the host, projected future positions for the displacement input device at multiple future times;
• displaying, on a host display, the projected future positions at the multiple future times;
• receiving, at the host, an updated displacement for the displacement input device;
• and
• upon receipt of the updated displacement, calculating a projection curve of projected future positions based on the updated displacement;
• moving a starting point of the projection curve to a midpoint between a position of the updated displacement and a current position based on a previous projected position at the time of the updated displacement;
• determining a transition line between the current position and an intersection point on the projection curve one time step before a new updated displacement measurement is expected;
• and
• determining, at the host, new projected future positions for the displacement input device at multiple future times along the transition line.