Abstract: A function parameter switching memory circuit for a peripheral device is provided. The peripheral device includes a function parameter switching memory circuit, a power management device and an optical sensor. The function parameter switching memory circuit includes a function parameter switching key and a simulation control circuit. The function parameter switching key generates and outputs a physical switch signal in response to a switching trigger action of a user. The simulation control circuit generates a virtual switch signal to the optical sensor. The simulation control circuit analyzes the physical switch signal to memorize a switched-and-set function parameter storage value. The simulation control circuit generates the virtual switch signal according to one of the physical switch signal and the switched-and-set function parameter storage value. The optical sensor performs a function parameter switching process according to the virtual switch signal.

Abstract: A membrane circuit board includes a first film substrate, a second film substrate, an insulating spacer substrate and a waterproof structure. The first circuit layer is installed on the first film substrate. A second circuit layer is installed on the second film substrate. The insulating spacer substrate arranged between the first film substrate and the second film substrate. The first circuit layer is arranged between the first film substrate and the insulating spacer substrate. The second circuit layer is arranged between the second film substrate and the insulating spacer substrate. The waterproof structure includes a first welding layer and a second welding layer. The first welding layer is arranged between the first film substrate and the insulating spacer substrate. The second welding layer is arranged between the second film substrate and the insulating spacer substrate.

Abstract: A key structure includes a base plate, a supporting element, a resilience arm and a keycap. The keycap includes a bulge. The supporting element is installed on the base plate. The resilience arm is connected with the supporting element and aligned with the bulge of the keycap. The keycap is connected with the supporting element. When the keycap is moved toward the base plate, the bulge is moved downwardly to push the resilience arm. After the resilience arm is pushed by the bulge, the resilience arm is subjected to elastic deformation and separated from the bulge. After the resilience arm is separated from the bulge, the resilience arm knocks on the keycap, so that a sound is generated.

Abstract: A key structure includes a protective cover and a keycap. The keycap includes flow-guiding bevel surface. When the protective cover and the keycap are adhered on each other through a glue material, an excess portion of the glue material is retained on the flow-guiding bevel surface. Consequently, the excess portion of the glue material will not spread to other regions.

Abstract: A calibration device includes a main control unit, an interface conversion unit and an electronic load generation unit. The electronic load generation unit provides an electronic load, so that a USB control chip generates a constant load current. The USB control chip uses at least one preset conversion parameter to generate an analog-to-digital conversion value according to the constant load current. The main control unit generates a to-be-calibrated output current according to the analog-to-digital conversion value. The main control unit generates at least one calibrated conversion parameter according to the constant load current and the to-be-calibrated output current. The USB control chip uses the at least one calibrated conversion parameter to generate a calibrated analog-to-digital conversion value, so that an over current protection mechanism is accurately enabled.

Abstract: A wireless input device includes an information receiving terminal and an information outputting terminal. The information receiving terminal generates a first-portion key. The information outputting terminal receives the first-portion key and generating a second-portion key. An original information is converted into an encrypted information by the information outputting terminal according to the first-portion key, the second-portion key and an encryption algorithm. The encrypted information and the second-portion key are transmitted from the information outputting terminal to the information receiving terminal. The encrypted information is restored to the original information by the information receiving terminal according to the first-portion key, the second-portion key and an encryption algorithm.

Abstract: A keyboard device includes a keyboard module and a palm rest module. The palm rest module is arranged beside a lateral side of the keyboard module, and supports a wrist of a user. The palm rest module includes a pedestal, a casing and an adjusting element. The casing is disposed on the pedestal. The adjusting element is arranged between the pedestal and the casing. A position of the casing relative to the pedestal is adjustable through the adjusting element. In a first usage state, the casing is moved toward the keyboard module or moved away from the keyboard module through the adjusting element. In a second usage state, the casing is rotated about the adjusting element and relative to the keyboard module, so that an included angle is formed between the casing and the lateral side of the keyboard module.

Abstract: A light emitting structure includes a light guide ring and a plurality of light emitting elements. The light guide ring has a plurality of light guide portions connected in sequence, and each of the light guide portions includes a light source receiving end and a connecting portion opposite to each other, in which one of the light guide portions is connected to another of the light guide portions, and an inner side or an outer side of the one of the light guide portions is connected to the connecting portion of the other of the light guide portions. The light emitting elements are laterally adjacent to the light source receiving ends of the light guide portions, respectively.

Abstract: The product detection system includes a computing device, at least one power detection instrument and a product detection device. The product detection device includes a processing unit, plural USB-C transmission ports and plural detection connection ports. A product detection method includes following steps. Firstly, at least one USB-C under-test product is connected with the plural USB-C transmission ports, and the at least one power detection instrument is connected with the plural detection connection ports. Then, the USB-C transmission port is set as a first role or a second role. Then, the USB-C transmission port corresponding to the first role is cyclically operated at plural designated voltages under control of the processing unit, and the processing unit issues an output voltage to the USB-C transmission port corresponding to the second role. Then, an operation status of the USB-C under-test product is detected.

Abstract: A key structure includes a switch circuit layer, a pedestal and a keycap. The pedestal includes a protrusion part and a hollow part. The keycap includes a buffering hook and a locking hook. The pedestal is disposed on the switch circuit layer. The keycap is disposed within the hollow part of the pedestal. The buffering hook and the locking hook of the keycap are aligned with the protrusion part of the pedestal. While the keycap is moved in a direction away from the switch circuit layer, the buffering hook is contacted with the protrusion part and then the locking hook is contacted with the protrusion part.

Abstract: A keyboard device includes plural key structures. Each key structure includes a base plate, a keycap, a connecting member and at least one raised structure. The keycap is located over the base plate. The connecting member is arranged between the base plate and the keycap. The keycap is movable upwardly or downwardly relative to the base plate through the connecting member. The connecting member includes at least one first hook part. The raised structure is installed on the base plate. The first hook part is connected with the raised structure. The raised structure includes a top wall, a lateral wall and a perforation. The lateral wall is connected between the top wall and the base plate. The perforation is formed in the lateral wall. The first hook part is penetrated through the perforation and contacted with the top wall.

Abstract: An image display device a light source, an image display layer and a refractive structure layer. The light source emits a light beam. The image display layer is located over the light source. The image display layer includes plural pattern sections. The refractive structure layer has a reference plane. When the light beam is irradiated on the refractive structure layer and there is a first angle between the light beam and the reference plane, the light beam is guided to a first pattern section, so that a first image is displayed on the image display layer. When the light beam is irradiated on the refractive structure layer and there is a second angle between the light beam and the reference plane, the light beam is guided to a second pattern section, so that a second image is displayed on the image display layer.

Abstract: A wireless sound output device includes a wireless earbud and a charging base. The wireless earbud is placed in the charging base. If a true wireless stereo Bluetooth controller of the wireless earbud detects that a mode switching circuit of the charging base is switched to a wireless Bluetooth receiver mode, an analog signal is transmitted to an audio source output hole of the charging base through an audio source analog signal output switching unit of the wireless earbud.

Abstract: A key structure is provided. The key structure includes a switch and a keycap. The switch includes a stem. The keycap is located over the switch. The keycap includes a pressing surface, an inner bottom surface and a protrusion post. The pressing surface and the inner bottom surface are opposed to each other. The protrusion post is protruded downwardly from the inner bottom surface. The protrusion post includes an insertion groove and at least one exhaust recess. When the stem is tightly fitted into the insertion groove, a gap is formed between the at least one exhaust recess and the stem.

Abstract: A keyboard device includes a casing and at least one supporting leg. The supporting leg includes a first supporting part, a second supporting part and a pivotal shaft. The supporting leg is pivotally coupled to an accommodation space of the casing through the pivotal shaft. The pivotal shaft is rotatable relative to the casing. Consequently, the supporting leg can be switched between a stored state and a supporting state. When the supporting leg is in the stored state, the supporting leg is accommodated within the accommodation space, and the accommodation space is covered by the first supporting part and the second supporting part. While the supporting leg is switched from the stored state to the supporting state, the first supporting part is pushed into the accommodation space in response to an external force, and the second supporting part is correspondingly moved away from the accommodation space.

Abstract: A touchpad module includes a touch member, a first base plate, a second base plate and two elastic elements. The first base plate includes a first stopping part and a second stopping part. The second base plate is arranged between the touch member and the first base plate. The second base plate include a third stopping part and a fourth stopping part. The third stopping part is engaged with the first stopping part. The fourth stopping part is engaged with the second stopping part. The two elastic elements are arranged between the first base plate and the second base plate. When an external force is exerted on the touch member, the touch member is swung toward the first base plate by using a junction between the second stopping part and the fourth stopping part as a fulcrum.

Abstract: A power saving method for a peripheral device in a wireless operation mode is provided. The power saving method at least includes the steps of allowing the peripheral device to enter an idle mode and judging whether the peripheral device receives a startup trigger event. In the idle mode, the light source in an operation region of the peripheral device is in an on state or a high-brightness state. If the peripheral device receives the startup trigger event, the peripheral device is switched from the idle mode to a power saving mode. In the power saving mode, the light source in the operation region of the peripheral device is in an off state or a low-brightness state. The peripheral device in the power saving mode consumes less electric power than the peripheral device in the idle mode.

Abstract: A touchpad module includes a base plate, a touch member, a switch, an elastic element, a first supporting element and a second supporting element. The base plate includes a triggering part. The touch member is located over the base plate. The switch is disposed on the touch member and aligned with the triggering part. The elastic element is located under the base plate. The elastic element includes a fixed part, a first swingable part and a second swingable part. The fixed part is fixed on the base plate. The first swingable part includes a first contact structure. The second swingable part includes a second contact structure. When an external force is exerted on the touch member, the touch member is swung toward the base plate relative to the first supporting element, and the second swingable part is swung away from the base plate.

Abstract: A keyboard device and a backlight module of the keyboard device are provided. The keyboard device includes a casing, the backlight module, a keyboard module and an expansion module. The backlight module includes a main body region and an extension region. The main body region and the extension region are connected with each other. A first light beam is outputted from the main body region to plural keys of the keyboard device. A second light beam is outputted from the extension region to the expansion module.

Abstract: A key structure includes a keycap, a base plate, a first scissors-type connecting element, a second scissors-type connecting element and a coupling plate. The first scissors-type connecting element and the second scissors-type connecting element are arranged between the keycap and the base plate. The first scissors-type connecting element is upwardly assembled with the keycap and downwardly assembled with the base plate. The first scissors-type connecting element includes a first inner frame and a first outer frame. The second scissors-type connecting element is upwardly assembled with the keycap and downwardly assembled with the base plate. The second scissors-type connecting element includes a second inner frame and a second outer frame. The coupling plate is arranged between the first outer frame and the second outer frame. The coupling plate is detachably assembled with the first outer frame and the second outer frame.