US 12,299,218 B2
Active pen-stylus precise eraser
Gaute Wiig Nordby, Oslo (NO); Torje Asdahl, Oslo (NO); Anna Karoline Øren Lillerud, Oslo (NO); and Espen Lie, Oslo (NO)
Assigned to reMarkable AS, Oslo (NO)
Filed by reMarkable AS, Oslo (NO)
Filed on Jul. 22, 2024, as Appl. No. 18/779,149.
Application 18/779,149 is a continuation in part of application No. 18/208,280, filed on Jun. 11, 2023, granted, now 12,045,404.
Prior Publication US 2024/0411391 A1, Dec. 12, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/0354 (2013.01); G06F 3/0346 (2013.01); G06F 3/038 (2013.01); G09G 3/34 (2006.01)
CPC G06F 3/0383 (2013.01) [G06F 3/0346 (2013.01); G06F 3/03545 (2013.01); G06F 2203/0384 (2013.01); G09G 3/344 (2013.01); G09G 2354/00 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for determining an area of erasure on a screen of a display device, comprising:
receiving in an active pen-stylus user drawing data input related to drawing on the screen of the display device and converting the drawing data to an electronic drawing data signal;
receiving the electronic drawing data signal in a first pen antenna circuit in the active pen-stylus that processes the electronic drawing data signal and sending the processed electronic drawing data signal to an active pen stylus antenna system;
transmitting the processed electronic drawing data signal from the active pen-stylus antenna system to the display device for display on the screen, the active pen-stylus antenna system comprising at least two antennas proximally located in a front portion of the active pen-stylus;
receiving user erasure data related to erasing at least a portion of the drawing on the screen of the display device in the active pen-stylus and converting the user erasure data to an electronic erasure data signal;
receiving the electronic erasure data signal in a second pen antenna circuit in the active pen-stylus that processes the electronic erasure data signal and sending the processed electronic erasure data signal to an erasure antenna system, the eraser antenna system comprising at least two antennas, the eraser antenna system proximally located in a rear portion of the active pen-stylus, wherein a first antenna of the at least two antennas in the eraser antenna system has a different location in the rear of the active pen-stylus than a second of the at least two antennas in the eraser antenna system, wherein the processed electronic erasure data signal includes orientation data related to the first antenna and the second antenna of the at least two antennas in the eraser antenna system;
transmitting the processed electronic erasure data signal from the erasure antenna system on the active pen-stylus to the display device for erasing at least the portion of the drawing on the screen of the display device,
wherein a graphics display component in the display devices uses the received processed electronic erasure data signal to compute a tilt angle between the first of the at least two antennas in the eraser antenna system and the second of the at least two antennas in the eraser antenna system to determine the area of erasure associated with the portion of the drawing on the screen of the computing device.