System and method for bidirectional communication between stylus and stylus sensor controller
AssigneeWacom Co., Ltd.
InventorsDavid Charles Fleck, Sadao Yamamoto
Life of this patent
Estimating the term…
Abstract
A method is provided to interface an active stylus with a sensor controller, wherein the sensor controller is coupled to a sensor configured to receive input from the active stylus. In the method the sensor controller caches stylus capability information of the active stylus. The stylus capability information includes setting information for inking used by an application program executed to display input from the active stylus on the sensor. The active stylus generates a hash value of the stylus capability information and transmits the hash value to the sensor controller when the active stylus enters a sensing zone of the sensor controller.
Claims20
A method for an active stylus and a sensor controller to interact with each other, the method comprising:
- the active stylus transmitting capability information;
- the sensor controller, in response to the capability information indicating that data held by the active stylus contains a number of information bits that cannot be transmitted in a time slot within a frame, assigning multiple time slots within the frame to the active stylus to transmit the data;
- and
- the active stylus transmitting the data using the assigned multiple time slots within the frame.
A method for an active stylus and a sensor controller to interact with each other, the method comprising:
- the active stylus transmitting capability information;
- the sensor controller, in response to the capability information indicating that data held by the active stylus contains a number of information bits that cannot be transmitted in a time slot within a frame, assigning multiple time slots across multiple frames to the active stylus to transmit the data;
- and
- the active stylus transmitting the data using the assigned multiple time slots across the multiple frames, wherein each of the multiple frames includes at least one of the assigned multiple time slots.
An active stylus for interacting with a sensor controller, the active stylus comprising:
- a memory including computer-executable instructions, and
- circuitry, which is communicably coupled to the memory and which, in operation,
- transmits capability information indicating that data held by the active stylus contains a number of information bits that cannot be transmitted in a time slot within a frame;
- receives, from the sensor controller, an assignment of multiple time slots within the frame to transmit the data;
- and
- transmits the data using the assigned multiple time slots within the frame.
An active stylus for interacting with a sensor controller, the active stylus comprising:
- a memory including computer-executable instructions, and
- circuitry, which is communicably coupled to the memory and which, in operation,
- transmits capability information indicating that data held by the active stylus contains a number of information bits that cannot be transmitted in a time slot within a frame;
- receives, from the sensor controller, an assignment of multiple time slots across multiple frames to transmit the data;
- and
- transmits the data using the assigned multiple time slots across the multiple frames, wherein each of the multiple frames includes at least one of the assigned multiple time slots.
Dependencies are inferred from the claim text.