# US 12,001,628 B2 · Electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,001,628 B2 - Document ID: US12001628B2 - Status: Granted - Kind: B2 - Application number: 17/689,083 - Filed: 2022-03-08 - Published: 2022-09-22 - Granted: 2024-06-04 - Earliest claimed: 2021-03-17 - Assignees: ASUSTeK COMPUTER INC. - Applicants: ASUSTeK COMPUTER INC. - Inventors: Chao-Chieh Cheng; Yi-Ou Wang; Ya-Ting Chen; Chun-Tsai Yeh - Web page: https://patentgrep.com/patent/US12001628B2 ## CPC - G06F 3/0416: {Control or interface arrangements specially adapted for digitisers} - G06F 1/1684: {Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675} - G06F 3/03545: {Pens or stylus} - G06F 3/03547: {Touch pads, in which fingers can move on a surface} - G06F 3/038: Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry - G06F 3/0383: {Signal control means within the pointing device} - G06F 1/1616: {with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract The disclosure provides an electronic device adapted to communicate with a stylus. The electronic device includes a display panel, a touch module, and a processor. The display panel has a display area, the touch module has a touchable area, and the processor is electrically connected to the display panel and the touch module. The processor is configured to: define at least one effective input area in response to an operation of the stylus in the touchable area, and when the touch module detects that the stylus is approaching the effective input area, switch the effective input area to a stylus mode, and display a range marking pattern in the effective input area. ## Claims ### Claim 1 An electronic device, adapted to communicate with a stylus, comprising: a display panel, having a display area; a touch module, having a touchable area; and a processor, electrically connected to the display panel and the touch module, wherein the processor is configured to: define at least one effective input area in the touchable area, switch the effective input area from an original preset touchpad mode to a stylus mode when the touch module detects that the stylus is approaching the effective input area and the processor determines that a location of the stylus is in the effective input area, and display a range marking pattern in the effective input area. ### Claim 2 (depends on 1) The electronic device according to claim 1, wherein the touch module further comprises a backlight module configured to display the range marking pattern. ### Claim 3 (depends on 1) The electronic device according to claim 1, wherein the touch module provides a plurality of detection modes of the stylus: a whole-surface mode, a locked mode, or an automatic mode. ### Claim 4 (depends on 3) The electronic device according to claim 3, wherein in the whole-surface mode, the effective input area is equivalent to the touchable area. ### Claim 5 (depends on 3) The electronic device according to claim 3, wherein the effective input area comprises a plurality of effective input areas, and each effective input area corresponds to a range marking pattern. ### Claim 6 (depends on 5) The electronic device according to claim 5, wherein in the locked mode, the processor selects one of the effective input areas as an available area, and when the touch module detects that the stylus is approaching the available area, the processor enables the available area, and displays the range marking pattern corresponding to the available area. ### Claim 7 (depends on 5) The electronic device according to claim 5, wherein in the automatic mode, the processor defines two of the effective input areas according to the touchable area, and the processor switches the effective input area approached by the stylus to the stylus mode and displays the range marking pattern in the effective input area approached by the stylus when the touch module detects that the stylus is approaching one of the two effective input areas. ### Claim 8 (depends on 4) The electronic device according to claim 4, wherein the processor further provides a setting interface displayed on the display panel for setting the detection mode and the range marking pattern. ### Claim 9 (depends on 8) The electronic device according to claim 8, wherein the processor receives a setting request signal generated from the setting interface, and correspondingly sets and stores the detection mode and the range marking pattern according to the setting request signal. ### Claim 10 (depends on 8) The electronic device according to claim 8, wherein the processor further sets a location of the effective input area by the setting interface when the detection mode is set to the locked mode. ### Claim 11 (depends on 2) The electronic device according to claim 2, wherein the processor further controls, according to a system status, the backlight module to or not to display the range marking pattern. ### Claim 12 An electronic device, adapted to communicate with a stylus, comprising: a display panel, having a display area; a touch module, having a touchable area; and a processor, electrically connected to the display panel and the touch module, wherein the processor is configured to: define at least one effective input area in the touchable area, switch the effective input area from an original preset touchpad mode to a stylus mode when the touch module detects that the stylus is approaching the effective input area and the processor determines that a location of the stylus is in the effective input area, and display a range marking pattern in the effective input area; wherein when the stylus is moving away from the effective input area, the touch module disables the stylus mode and the processor switches the effective input area from the stylus mode to the original preset touchpad mode, and does not display the range marking pattern.