Sunrex Technology Corporation

Chih-Cheng Lee

Shun-Pin Lin

Wen-Hao Kuo

Jyun-Ying Jin

A stylus pen including a pen unit, a switch, and a control unit is provided. The pen unit includes a tip, and a shaft connected to the tip. The control unit is switchable between a default mode and an alternative mode in response to operation on the switch. In the default mode, the control unit emits a default-mode wave of a default-mode frequency to the shaft. In the alternative mode, the control unit emits an alternative-mode wave to the shaft in a pulsating pattern. The pulsating pattern has a wave period that includes a working period where the control unit emits the alternative-mode wave of the default-mode frequency, and a non-working period where the control unit stops emitting the alternative-mode wave.

Stylus pen having an automatic consecutive tapping function

A touchpad device is to be operated by using a stylus pen, and includes a touchpad and a controller that are connected to each other. The controller is connected to an electronic device that includes a display panel, and operates in a stylus-pen mode where a handwriting area is presented on the display panel. When it is determined that a distance between the stylus pen and the touchpad is less than a preset pen-hover distance but is non-zero, the controller operates in a hover-move sub-mode where the controller outputs a control signal to enable the electronic device to present, in the handwriting area, the cursor moving, without presenting a trace of the cursor.

Touchpad device and operation method of the same

A touchpad device is to be operated by using a stylus pen, and includes a touchpad and a controller that are connected to each other. The controller is connected to an electronic device that includes a display panel, and operates in a stylus-pen mode where a handwriting area is presented on the display panel. When it is determined that a distance between the stylus pen and the touchpad is less than a preset pen-hover distance but is non-zero, the controller operates in a hover-move sub-mode where the controller outputs, based on a result of determination as to whether the electronic device is an iPad or not, two different control signals respectively for two different results of the determination to enable the electronic device to present, in the handwriting area, the cursor moving respectively in two different manners, without presenting a trace of the cursor.

A rotational input device is to be operated, and includes a device body, a rotatable unit rotating in response to operation, a sensing unit detecting an amount of rotation of the rotatable unit to generate a detection signal, and a processing unit connected to the sensing unit. After receiving the detection signal, the processing unit calculates an angular acceleration of the rotatable unit based on the detection signal, and determines whether the angular acceleration is greater than a predetermined threshold. In the affirmative, the processing unit divides the amount of rotation by a preset amount of rotation to obtain a first output value, and generates an input signal based on a second output value that is determined based on the first output value.

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Taichung, Taiwan

Chih-Cheng Lee