121 results about "Active pen" patented technology

Embodiments of the invention provide a removable marker tip configured for application with an active pen-stylus. The removable marker tip comprises an antenna and an insulator and is designed to be held onto the pen-stylus' writing shaft by a set of crush ribs fitted into a posterior recess on the removable marker tip. The removable marker tip is designed to be a consumable part to improve the paper feeling received by users of the pen-stylus as they draw on the display of a tablet device. The removable marker tip is further designed to be hand-removable by users of the pen-stylus.

Embodiments of the invention provide an active pen-stylus that emulates a paper feeling for users of the active pen-stylus. The active pen-stylus comprises a writing shaft that receives physical forces arising from use of the pen-stylus by a user. The active pen-stylus also includes a force sensor that receives forces from the writing shaft, the force sensor configured to convert received forces into an electronic signal. A writing spring receives forces from the force sensor and reflects back to the user a reactionary force that emulates a paper feeling. The writing spring compresses and undergoes geometric deflection in creating the reactionary force that emulates the paper feeling. The geometric deflection produced by the writing spring arises from deformation of the writing spring by the received forces.

Described are methods and systems for auto framing an object of interest. A webcam of an information handling system captures a full field of view image that has a region of interest (ROI) that includes a pointing element, such as an active pen, user finger, or other such object. The ROI also includes the object of interest. An auto-framing AI / ML model detects the ROI and the pointing element and auto-frames the object of interest to which the pointing element is directed to.

The invention discloses an active pen and touch screen interaction system resistant to common-mode interference and a signal demodulation method. The system comprises a signal receiving terminal and a signal transmitting terminal. The signal transmitting terminal modulates data to be transmitted by adopting a differential binary phase shift keying modulation method, and transmits a generated modulation signal to the signal receiving terminal; the analog front-end receiving module is coupled with the signal transmitting terminal, receives the modulation signal and outputs a digital square wave signal after fidelity extraction processing; and the digital demodulation processing module performs differential coherent digital demodulation on the digital square wave signal based on the prior characteristics of the modulation signal, inhibits residual noise and recovers data to be sent. The analog front end focuses strong common-mode noise suppression and analog filtering, the digital demodulation algorithm performs secondary digital purification by using signal time sequence characteristics, and the two constructs an efficient anti-interference pipeline. Meanwhile, the regular square wave signals can be directly processed through differential coherent demodulation, and the requirements for performance and power consumption of a rear-end processor are lowered.

A sensor controller is provided, which is configured to be connected to a capacitive touch sensor having a plurality of sensor electrodes arranged planarly. The sensor controller includes a scan controller that executes a plurality of types of operation modes in which a pen scan for detecting an active pen transmitting a downlink signal and a touch scan for detecting a passive pointer not transmitting the downlink signal are repeatedly executed on a time-sharing basis via the plurality of sensor electrodes. The sensor controller includes a signal transmitter that transmits, during execution of the pen scan, an uplink signal for requesting the downlink signal via the plurality of sensor electrodes. When the passive pointer is not detected by the touch scan, the signal transmitter makes a transmission frequency of the uplink signal lower than when the passive pointer is detected by the touch scan.

The invention discloses a touch display screen, a control method of the touch display screen, touch display equipment and a control method of the touch display equipment, relates to the technical field of display, and aims to reduce the influence of application of an active pen on the display screen so as to improve the performance of display, touch detection and active pen detection of the display screen. The control method of the display screen comprises the steps that in the first long-line blanking stage, the touch display screen emits an uplink signal, and the uplink signal is used for detecting whether an active pen operates the touch display screen or not. In the second to mth long row blanking stages, the touch display screen receives a downlink signal from the active pen to perform active pen detection. The control method can be used for controlling the touch display screen to realize detection of the active pen.

The invention provides an active pen and an interaction system, and relates to the technical field of electronics. The active pen comprises a driving device used for providing a driving signal, and the driving signal comprises a signal obtained by processing writing recording of a traditional pen; the motor device is used for receiving the driving signal, the driving signal is used for driving the motor device to generate a vibration signal and a sound signal, and the vibration signal and the sound signal are used for representing the brush type of the active pen. According to the scheme, the motor device in the active pen can generate the vibration signal and the sound signal at the same time by receiving the driving signal, the vibration signal can simulate the touch sense in the traditional writing process, the sound signal can restore the friction sound in the traditional writing process, the reduction degree of the active pen to the traditional paper pen is improved, and the writing efficiency is improved. The brush types of different active pens are represented, so that the interactivity and the user experience of the active pens are improved.

Provided is a pen sensor for use in detecting an active pen. The pen sensor includes a first layer including a group of first sensor electrodes and a group of first dummy patterns, and a second layer including a group of second sensor electrodes and a group of second dummy patterns. The first dummy patterns and the second dummy patterns are overlaid with each other when viewed from above the pen sensor.

The application discloses a manufacturing method of an array substrate capable of reducing touch capacitance, which comprises the following steps: sequentially forming a buffer layer SiOx, an active layer, an etching stop layer ES and a metal layer GE, including a gate electrode and a touch layer CM, on a glass by patterning; depositing an insulating protective layer PV; coating an organic flat layer OC and patterning an OC hole; performing exposure / development / etching processes by using an ES mask to pattern an ES hole; patterning a metal layer SD on the OC layer and connecting the metal layer SD with the SE through the ES hole, and patterning a metal pad layer at the touch layer CM; depositing an insulating layer VA to form a VA hole; and depositing a pixel electrode PE and connecting the pixel electrode PE with a source / drain metal layer through a CH hole. The application reduces the touch capacitance and improves the receiving degree of an active pen signal.

The invention relates to the technical field of electronic equipment accessories, in particular to a passive pen suitable for a capacitive touch screen and a preparation method thereof.The passive pen comprises a penholder made of an insulating material, a conductive path and a water storage device are arranged in the penholder, and the penholder is used for conducting an electric field of the hand of a user to a pen point; the pen point is fixedly connected with the pen holder and is made of a conductive material or a water-absorbing wear-resistant material, the contact end of the pen point is in a dome shape or a flat shape, the diameter range is 1-10 mm, and the pen point is used for simulating the capacitance change of finger touch control; the connecting structure, the pen point and the pen holder are fixed through conductive adhesive or a metal connecting piece, and electric field conduction stability is ensured. A composite pen point and a dual-mode switching design are adopted, the touch control and writing functions are achieved, the complex environment applicability is improved through a humidity self-adaption system, a pen holder is of an ergonomic structure, a conductive path has reliability and bending resistance, compared with an active pen, a power source is not needed, the cost is lower, and the practicability and the environmental protection property are enhanced through the modular pen point design; and the method is suitable for multi-scene accurate touch requirements.

An integrated circuit, for use with an active pen, transmits a downlink signal including first identification data via a pen tip electrode of the active pen after the active pen has been paired with a sensor controller, and in a case where an uplink signal including second identification data corresponding to the first identification data is received, controls transmission of a next downlink signal based on the second identification data, where each of the first identification data and second identification data is contact state data indicating whether a pen tip of the active pen is in contact with a touch surface, and compares the second identification data included in the uplink signal with the first identification data included in the downlink signal and controls transmission of the next downlink signal depending on a result of comparing the second identification data with the first identification data.

A touch display device (100) and a touch method therefor. The touch display device (100) is additionally provided with a pattern layer (22) comprising a plurality of minimum units (2a); one touch electrode (211) is correspondingly provided with the plurality of minimum units (2a); each feature body (a1) of the pattern layer (22) is configured to be recognized by an external active pen (10); and each first pattern (t1) has position information, and then the external active pen (10) acquires first coordinate information of a contact of the active pen (10), and second coordinate information is corrected by using the first coordinate information.

The invention provides a touch panel and a control method thereof. The control method is applied to the touch panel to receive control from an active pen. The control method includes demodulating a writing signal received from an active pen using a demodulation frequency; judging whether the demodulated writing signal is abnormal or not; and in response to determining that the demodulated writing signal is abnormal, adjusting the demodulation frequency to increase the energy of the demodulated writing signal.

A sensor panel is overlaid on a display apparatus and connected to an integrated circuit that detects a position of an active pen in an active region of the display apparatus. The sensor panel includes first electrodes that extend in a first direction. The sensor panel also includes second electrodes that extend in a second direction. The first electrodes include first and second outer electrodes that are located at the outermost edges of the first electrodes and first inner electrodes disposed between the first and second outer electrodes. A width of at least one of the first and second outer electrodes in the second direction is smaller than a width of each of the first inner electrodes in the second direction.

A pointer position detection method performed by a sensor controller connected to a sensor pattern includes: detecting a pen signal transmitted via a pen electrode provided at a distal end of an active pen, detecting a position of the active pen based on a level of the pen signal detected; detecting one or more candidate touch positions of a passive pointer that does not transmit a signal by detecting one or more changes of one or more capacitances of the sensor pattern, and outputting, as the position of the passive pointer, the one or more candidate touch positions remaining after excluding the position of the active pen from the one or more candidate touch positions.

The invention provides a sensor panel capable of narrowing a bezel of a tablet-type electronic device. A sensor panel is used by being disposed so as to overlap a display panel, is connected to a sensor controller that detects at least the position of an active pen within an active region (A) of the display panel, and is provided with: a plurality of linear electrodes (5x) that extend in the y-direction, are disposed in parallel in the x-direction, and are connected to the sensor controller via mutually different wirings (6x); and a plurality of linear electrodes (5y) which extend in the x direction, are arranged in parallel in the y direction, and are connected to the sensor controller via mutually different wirings (6y). The width (W2) in the x-direction of the outer electrode (5xa) closest to the end of the plurality of linear electrodes (5x) is set to be smaller than the width (W1) in the x-direction of each of the linear electrodes (5x) located on the inner side.

This application provides an active pen, comprising: a pen shell, a pen tip, and a tilting electrode; the pen tip includes a first pen tip assembly and a second pen tip assembly, the second pen tip assembly being partially disposed within the first pen tip assembly, the first pen tip assembly being at least partially located outside the pen shell, and the second pen tip assembly being partially located inside the pen shell; the tilting electrode is a tubular structure, disposed within the pen shell, and sleeved outside the second pen tip assembly, with insulation between the tilting electrode and the second pen tip assembly; the first pen tip assembly is configured to contact a touch screen of an electronic device; the second pen tip assembly is used to output a first coding signal, and the tilting electrode is used to output a second coding signal, enabling the electronic device to determine the contact position between the first pen tip assembly and the touch screen based at least on the first and second coding signals. The active pen provided in this application has a small pen tip size, which does not obstruct the user's view during use, thus improving the user experience.

The utility model discloses a detection chip and an active pen. The detection chip is connected with a strain circuit in the active pen through a switching circuit; the strain circuit is used for sensing the pressure of a pen point; the strain circuit comprises a first resistance bridge arm and a second resistance bridge arm; the first end of the first resistance bridge arm is connected with the power supply end, and the second end is grounded; the first end of the second resistor bridge arm is connected with the power supply end, and the second end of the second resistor bridge arm is grounded; when the switching circuit is in a first state, the first end of the detection chip is connected with the first resistor bridge arm, and the second end of the detection chip is connected with the second resistor bridge arm to receive a first forward voltage; and when the switching circuit is in a second state, the second end of the detection chip is connected with the first resistor bridge arm, the first end of the detection chip is connected with the second resistor bridge arm, the first backward voltage is received, and a signal output by the strain circuit to the detection chip is modulated to form a square wave signal, so that demodulation and noise reduction processing are facilitated, a noise signal is removed, and the detection accuracy is improved.

The invention discloses an active pen, a touch control system and a touch control method.According to one embodiment, the active pen comprises a touch control strip arranged on a pen body and a processor arranged in the pen body, the touch control strip comprises an infrared sensor and a touch control area surrounding the infrared sensor, and the processor is arranged in the pen body. The infrared sensor is used for detecting the distance between a finger of a user and the touch strip, and the touch area comprises a plurality of touch electrodes arranged in an array and is used for sending or receiving a touch signal; and the processor is used for detecting the distance output by the infrared sensor according to a preset time interval, identifying a user operation intention when the distance is smaller than a preset distance threshold value, responding to the user operation intention and adjusting parameters of the active pen according to the signal received by the touch electrode. According to the embodiment, the parameters of the active pen can be flexibly adjusted, and the use efficiency and user experience of the active pen are effectively improved.

A position detection system includes a display device that displays image data by driving pixel electrodes, and a touch panel including a sensor electrode and a touch sensor. An active pen communicates with the touch sensor using a frequency included in a frequency band. The display device suppresses a frequency component in the frequency band in capacitive noise that occurs in the sensor electrode due to a voltage vibration in an interconnect in the display device caused by driving of the pixel electrodes. The display device selectively operates in either of a first operation mode in which driving of the pixel electrodes suppresses the frequency component included in the capacitive noise that occurs in the sensor electrode, and a second operation mode in which driving of the pixel electrodes does not suppress the frequency component included in the capacitive noise that occurs in the sensor electrode.

The present invention provides a method for detecting a pressure of an active pen, a device and an active pen, where a pen body of the active pen is provided with a touch sensor. The method includes: obtaining a sensing change amount of the touch sensor, where the sensing change amount indicates a capacitance change amount of the touch sensor; and determining, according to the sensing change amount, a pressure value on the pen body. The technical solution provided by the invention can reduce the cost of the active pen while realizing the pressure detection for the active pen.

The invention discloses an uplink signal transmission method of a touch screen and touch input equipment, the touch screen comprises a plurality of first sensing electrodes and a plurality of second sensing electrodes orthogonal to the first sensing electrodes, and the first sensing electrodes and the second sensing electrodes are used for transmitting touch signals and obtaining detection signals; the uplink signal transmission method comprises the following steps: in a touch detection time period of a current period, when it is determined that the hand and the active pen touch the touch screen at the same time according to a detection signal, obtaining a target area touched by the active pen on the touch screen; and in the signal transmission time period of the current period, controlling a sensing electrode of the target area to transmit an uplink signal so as to enable the active pen to receive the uplink signal. According to the invention, the uplink signal cannot be distorted due to grounding attenuation, so that the accuracy of detecting the position of the active pen by the touch screen is improved.

The invention provides a touch screen control method and device, equipment, a medium and a program product. The method comprises the steps that touch signals sent to a touch screen by an active pen are received through multiple communication channels on the touch screen; positioning an active pen according to the touch signal to determine a contact position of the active pen and the touch screen; communication channels around the contact position of the active pen are determined as target channels, and the number of the target channels is smaller than the total number of the communication channels of the touch screen; and controlling the plurality of target channels to send response signals of the touch signal to the active pen, so that the active pen synchronously receives the response signals sent by the target channels. After the active pen sends the touch signal, the active pen is accurately positioned, and the plurality of communication channels around the contact position of the active pen are selected as the target channels for response driving, so that the signal sending control accuracy of the touch screen is improved, the energy efficiency and the signal response accuracy of the touch screen in the process of responding to the signal of the active pen are improved, and the user experience is improved. And the communication quality is improved.

This application relates to a method, apparatus, and storage medium for determining the state of an active pen. The method includes: when an active pen has established a communication connection with a terminal and movement of the active pen is detected, determining the current coordinate difference information of the active pen within the current time period; the current coordinate difference information includes the coordinate difference between the position coordinates of two adjacent moments within the current time period; determining the current velocity of the active pen within the current time period based on the current coordinate difference information; if the current velocity is less than or equal to a preset velocity threshold, determining the total displacement of the active pen within the preset time period based on the current coordinate difference information and the preset time period; wherein the preset time period is located within the current time period and includes the current moment; and determining the target pen state of the active pen based on the total displacement and the preset displacement threshold. This method can improve the anti-interference capability and recognition accuracy of active pen state recognition.

The present application provides a synchronization method and a synchronization device, which may effectively realize synchronization between a touch screen and the active pen. The synchronization method is configured for time synchronization between a first detection chip of a first device and a second detection chip of a second device, and the method includes: a first wireless communication chip connected to the first detection chip, receiving the first synchronization signal sent by the first detection chip at a first moment; the first wireless communication chip sending time information associated with the first moment to a second wireless communication chip connected to the second detection chip; and the time information being configured to determine a second moment for the first detection chip to send the synchronization signal next time, so that the second detection chip is synchronized with the first detection chip at the second moment.

To prevent drawing by pen input from stopping due to a failure in receiving an uplink signal, an active pen according to the present disclosure includes a processing circuit that transmits, at a second timing decided based on a first timing of a first uplink signal received from a sensor controller, a position signal and a data signal from a pen-tip electrode and receives a second uplink signal, and a wireless communication circuit that wirelessly communicates with the sensor controller. The processing circuit determines whether the second uplink signal has been received at the second timing, and in a case of determining that the second uplink signal has not been received, the processing circuit transmits at least part of the data signal via the wireless communication circuit while transmitting the position signal from the pen-tip electrode.

The invention provides an active pen and an interaction system, and relates to the technical field of intelligent pens. The active pen includes: a UWB module; and the plurality of antennas are connected to the UWB module, the plurality of antennas are used for interacting UWB signals with the display device, and the UWB signals are used for determining the position and the direction of the active pen so as to determine the corresponding cursor position of the active pen in the display interface of the display device. According to the technical scheme, the UWB module and the multiple antennas are arranged in the active pen, the active pen can be accurately positioned, the operation sensitivity of the active pen to the display device can be improved, the flying mouse operation performance of the active pen is improved, especially the indication performance of the active pen serving as a laser pen is improved, and the effect that the active pen can be achieved when indicated is achieved is achieved. According to the technical scheme, the use experience of a user on the active pen can be greatly improved.

A method of palm rejection is executed by a sensor controller that is connected to a plurality of sensor electrodes and that detects a downlink signal transmitted from an active pen. The method includes determining whether or not a phase of the detected downlink signal matches a phase shared in advance between the sensor controller and the active pen, and outputting, when it is determined that the phases match, a position of the active pen derived on the basis of a distribution of levels of the downlink signal in the plurality of sensor electrodes.

The invention relates to a display device which comprises a display, a touch module and a control circuit. The control circuit is used for judging whether a noise interference phenomenon occurs on the touch module due to a plurality of pictures displayed by the display. If the noise interference phenomenon occurs, the control circuit sets the upper connection signal or the lower connection signal to be generated by a first driving voltage. If the noise interference phenomenon does not occur, the up-connection signal or the down-connection signal is generated by a second driving voltage, and the first driving voltage is greater than the second driving voltage. Therefore, writing errors of the active pen can be avoided.

The invention discloses a signal generation method and device of an active pen, the active pen and a non-temporary storage medium, and relates to the technical field of touch control, and the signal generation method of the active pen comprises the steps that the working state of the active pen is detected in real time; when the working state is a hovering state, acquiring first to-be-transmitted data of the first transmitter and second to-be-transmitted data of the second transmitter; generating a first to-be-transmitted signal based on the first to-be-transmitted data, and generating a second to-be-transmitted signal based on the second to-be-transmitted data; and performing semaphore enhancement on the first to-be-transmitted signal by using the second to-be-transmitted signal. The first to-be-transmitted signal is subjected to semaphore enhancement through the second to-be-transmitted signal, so that the active pen and the screen of the receiving end can realize quicker pairing and quicker information interaction. The semaphore enhancement is realized without adding other physical equipment, and the cost required by the system is reduced. The signal receiving sensitivity does not need to be improved from a receiving end, and the influence of environmental noise is reduced.