A key scanning method and an input device thereof are provided. The key scanning method for an input device with at least a first key group and a subsidiary key group comprises: triggering a first main scan line electrically connected to the first key group and reading electrical signals received via a plurality of signal sensing lines electrically connected to the first key group to determine whether any said key among the first key group is triggered; and triggering a non-triggered one of a plurality of subsidiary scan lines electrically connected to the subsidiary key group and reading electrical signals received via another plurality of signal sensing lines electrically connected to the subsidiary key group to determine whether any said key among the subsidiary key group is triggered, wherein the first main scan line and the subsidiary scan lines are triggered one after another for multiple times.

A key determination method for a metal key. The method comprises a step of determining whether values output by an electrical parameter converter on a metal key satisfy multiple levels of thresholds, and, a step of setting a press flag of the metal key according to multiple levels of thresholds; and after the metal key is released, determining whether a release flag is valid according to a press model, and if so, clearing the press flag that was previously set. Different press models and different thresholds are selected and configured by means of software, so that personalized choices are provided for respective metal keys, which effectively facilitates different operators in configuring a metal keyboard according to usage habits, thereby improving the operating efficiency. In addition, the setting of different thresholds effectively protects the operational details mean for the exclusive use of operators, thereby achieving the required confidentiality.

A key scanning method, a scan method for a key scan circuit, and an input device thereof are provided. The key scanning method comprises performing a first scan procedure which includes triggering a first main scan line and reading electrical signals received via a plurality of signal sensing lines to determine whether any of the keys among a first key group is triggered. Then, performing a second scan procedure which includes triggering at least one of a plurality of secondary scan lines and reading the electrical signals received via the plurality of signal sensing lines to determine whether any of the keys among a second key group is triggered. In the key scanning method, the first scan procedure and the second scan procedure are performed one after another, and each of the secondary scan lines is triggered at least once.

A key scanning method, a scan method for a key scan circuit, and an input device thereof are provided. The key scanning method comprises performing a first scan procedure which includes triggering a first main scan line and reading electrical signals received via a plurality of signal sensing lines to determine whether any of the keys among a first key group is triggered. Then, performing a second scan procedure which includes triggering at least one of a plurality of secondary scan lines and reading the electrical signals received via the plurality of signal sensing lines to determine whether any of the keys among a second key group is triggered. In the key scanning method, the first scan procedure and the second scan procedure are performed one after another, and each of the secondary scan lines is triggered at least once.

An apparatus is disclosed. The apparatus includes a first controller including a plurality of contactors, each of the plurality of contactors configured to be selectively connected to a connector of a user interface, a plurality of electrical relays that are connected to the plurality of contactors, a second controller that is connected to the plurality of electrical relays, the plurality of electrical relays connected between the first controller and the second controller, and a user device or a network component that transfers control data to the second controller. The second controller controls the plurality of electrical relays to provide input to the first controller via the plurality of contactors based on the control data.

An apparatus is disclosed. The apparatus includes a first controller including a plurality of contactors, each of the plurality of contactors configured to be selectively connected to a connector of a user interface, a plurality of electrical relays that are connected to the plurality of contactors, a second controller that is connected to the plurality of electrical relays, the plurality of electrical relays connected between the first controller and the second controller, and a user device or a network component that transfers control data to the second controller. The second controller controls the plurality of electrical relays to provide input to the first controller via the plurality of contactors based on the control data.

Various embodiments of the present invention relate to a method for setting a layout for a physical keyboard by an electronic device to which same is connected, and a device therefor. An electronic device according to various embodiments of the present invention may comprise a display, a communication interface, a memory, and a processor, wherein the processor includes the functions of: sensing, through the communication interface, whether an external device is connected; displaying guide text related to keyboard layout configurations by means of the display on the basis of the function of sensing whether the external device is connected; receiving a key value input by a user through the external device; searching for a layout corresponding to the received key value; and setting the found layout as a keyboard layout for the connected external device. Various embodiments are possible.

A key scanning method, a scan method for a key scan circuit, and an input device thereof are provided. The key scanning method comprises performing a first scan procedure which includes triggering a first main scan line and reading electrical signals received via a plurality of signal sensing lines to determine whether any of the keys among a first key group is triggered. Then, performing a second scan procedure which includes triggering at least one of a plurality of secondary scan lines and reading the electrical signals received via the plurality of signal sensing lines to determine whether any of the keys among a second key group is triggered. In the key scanning method, the first scan procedure and the second scan procedure are performed one after another, and each of the secondary scan lines is triggered at least once.

A key scanning method, a scan method for a key scan circuit, and an input device thereof are provided. The key scanning method comprises performing a first scan procedure which includes triggering a first main scan line and reading electrical signals received via a plurality of signal sensing lines to determine whether any of the keys among a first key group is triggered. Then, performing a second scan procedure which includes triggering at least one of a plurality of secondary scan lines and reading the electrical signals received via the plurality of signal sensing lines to determine whether any of the keys among a second key group is triggered. In the key scanning method, the first scan procedure and the second scan procedure are performed one after another, and each of the secondary scan lines is triggered at least once.

A keyboard scanning circuit and control method thereof are provided. The method is adapted to detect states of a plurality of switching circuits arranged in an array manner, wherein each of the switching circuits includes a key switch and a first resistor connected in series; the switch circuits are coupled to a plurality of scan lines and a plurality of feedback lines; each of the scan lines is coupled to the switch circuits of the same column in a first direction, and each of the feedback lines is coupled to the switch circuits of the same row in the second direction.