Abstract: The wireless human input device comprises at least one wireless human transmitting unit and a wireless human receiving unit. The wireless human transmitting unit generates leading signals and data signals and transmits the signals to the wireless human receiving unit. The wireless human receiving unit receives all of the leading signals and identifies the data signals based on the leading signals so as to distinguish the data signals being transmitted by which wireless human transmitting unit.

Abstract: A universal type keyboard has a common design of an upper housing and key caps for different languages such that keyboards of different languages can be manufactured with a universal upper housing.

Abstract: A key structure, which comprises a key cap, a linkage mechanism, a fixed base, a resilient assembly and a membrane circuit board, of a computer keyboard is provided, The key cap has a top and a bottom. The fixed base, formed with a receiving space, has a top and a bottom. The linkage mechanism is disposed between the key cap and the fixed base. The resilient assembly fits into the receiving space of the fixed base and connected to the bottom of the key cap. The membrane circuit board is disposed on the bottom of the fixed base and located under the resilient assembly.

Abstract: The invention is disclosed a correcting method for differential push-pull(DPP) tracking error signals of an optical disk drive. A Step (A) divides a CD into a plurality of areas according to magnitudes of the peak values of the DPP tracking error signals, wherein the difference between every two DPP peak values of neighboring areas is larger than a predetermined value. A step (B) measures respectively average DPP peak values of every area in the step A for calculating a gain value of each area according to the average DPP peak values and an ideal DPP peak value under a non-track locking state. A step (C) does gain correction for the DPP tracking error signals according to the corresponding gain value of the area accessed when in accessing to an area of the CD.

Abstract: The present invention relates to an elastic strip used in electronic devices and designed to enable outlet lines of a membrane circuit board to acquire contact with electrical connections of a printed circuit board through a flat surface. The strip-shaped plate is a strip-shaped structure with an elastic physical property. At least one cavity is disposed in the strip-shaped plate. A rib which corresponds to the cavity is disposed on the upper surface of the strip-shaped plate. Part of the rib protrudes out of the surface of the strip-shaped plate. The rib comprises two rib structures which are connected to the respective sides of the top of the corresponding cavity.

Abstract: The present invention relates to a reconfigurable holding device comprising a first plate, a second plate and a joint piece. The first plate includes a first arm and a second arm to rest an electronic device on the first arm. The second plate includes a third arm and a fourth arm. The joint piece can be a hinge wherein one end of the hinge is fixed to the first arm and the other end is fixed to the third arm so that the first plate and the second plate can be held at a post-pivot angle.

Abstract: The present invention discloses a frame for use in flat keys. The frame includes a frame body and blocking plates. The frame body holds and supports a keycap, wherein the keycap can be pressed toward the bottom of the frame body. The blocking plates are installed on the frame body and contacted the bottom surface of the keycap, wherein the blocking plates push the keycap toward the top of the frame body to maintain a predetermined distance. The frame of the present invention may be made, in one piece, from plastic such that a slim keyboard equipped with the frames of the present invention has advantages, such as low cost, swift assembly, and high quality of assembly.

Abstract: A key structure, which comprises a key cap, a linkage mechanism, a fixed base, a resilient assembly and a membrane circuit board, of a computer keyboard is provided, The key cap has a top and a bottom. The fixed base, formed with a receiving space, has a top and a bottom. The linkage mechanism is disposed between the key cap and the fixed base. The resilient assembly fits into the receiving space of the fixed base and connected to the bottom of the key cap. The membrane circuit board is disposed on the bottom of the fixed base and located under the resilient assembly.

Abstract: The invention is disclosed a method for promptly protecting a voice coil motor in an optical disk drive. A step (A) allows a data signal processor (DSP) to execute a protect module of the voice coil motor every preset time interval. In a step (B), the DSP executes following further steps during executing the protect module. A step (b1) reads tracking error (TE)/focusing error (FE) and determines if the TE/FE is over a safety range. A step (b2) starts a gain decrease operation of a signal amplifier if the TE/FE in step (b1) has been over the safety range for more than the first preset number of times so as to lower the control current outputting to the voice coil motor. A step (b3) starts an operation of speed reduction and a low current operation of a controller to secure the voice coil motor being safe if the TE/FE in step (b1) has been over the safety range for more than a second preset number of times.

Abstract: A key constructing method for a keyboard has M scan lines*N return lines. The electrical interconnects of the M scan lines*N return lines can generate numerical electrical contacts of A1 to AM*N, while the numerical electrical contacts of {A1 to Am*N} are the electrical contact set {A}. The key constructing method for the keyboard comprises the following steps: selecting at least one or more electrical contacts from the electrical contact set {A} to create an electrical contact set {B}; creating the electrical contact set {C}, while the electrical contact set {C}=the electrical contact set {A}?the electrical contact set {B}; combining at least one electrical contact from the electrical contact set {C} with one of the electrical contacts from the electrical contact set {B} to generate an expanded key.

Abstract: The present invention provides a bi-directional electronic device with USB interface, comprising a two-in-one USB connector and a USB OTG controller. The two-in-one USB controller has a USB standard-A type male connector and a USB standard-B type female controller, disposed in housing; the two-in-one USB controller is designed so that only the selected USB standard-A type male connector and the USB standard-B type controller can be used for plugging in. The USB OTG controller determines the operation mode of the bi-directional electronic device with the USB interface based on the plugging position of the USB standard-A type male controller and the USB standard-B type controller of the two-in-one controller.

Abstract: An illuminated human-machine interface device does not need prepare electric energy by itself to supply power for a light source and can operate by taking advantage of the brightness of a screen of a monitor without any extraordinary illuminating equipment. It can be a keyboard and the positions on which the fluorescent light emits from the keyboard can be chosen on plural key caps. Secondly, it can be a keyboard and the position on which the fluorescent light emits from the keyboard can be chosen on an upper cover. The printed symbols on the key caps and the upper cover can both be formed by positive or negative plate printing with fluorescent ink, or the key caps and the upper cover can both be mixed with fluorescent material therein. Thirdly, it can be a keyboard with a fluorescent plate thereon to emit fluorescent light to make the keyboard a fluorescent keyboard. Fourthly, it can be a mouse having a housing with fluorescent material therein.

Abstract: The present invention relates to a wireless input device with a low voltage mandatory alert function, including: a battery for supplying power for the wireless input device; a microcontroller for handling the input signals of the wireless input device. The present invention is characterized in that the microcontroller is used for detecting the voltage of the battery; when the voltage is lowered to the lower limit voltage, the wireless input device can no longer operate.

Abstract: A method for constituting bootstrap hotkeys comprises a step (11) for identifying a predetermined keyboard and a step (13) for booting hotkey functions. The step (11) further comprises: a step (110) for executing hotkey's bootstrap codes and transferring a keyboard-identification means to a keyboard when a computer is booted; a step (112) for transmitting a keyboard-confirmation means from the keyboard to the host computer in response to the keyboard-identification means; and a step (114) for recognizing the keyboard-confirmation means in light of the hotkey's bootstrap codes; followed by the activation of the hotkey function or, if fails, by terminating the hotkey's bootstrap codes.

Abstract: A multimedia playing apparatus capable of searching for digital multimedia information uses a corresponding media descriptor downloaded from the media transmitting source. The multimedia playing apparatus includes a reception module and a comparison module. The reception module is used to receive at least the media descriptor corresponding to the digital multimedia information. The comparison module is used to compare the media descriptor with a search rule to determine if the media descriptor conforms to the search rule.

Abstract: An illuminated keyboard with illuminated figures being formed on the top surface of the keyboard including: a top cover, a bottom cover, a plurality of keys and an electroluminescent board. The top cover accommodates the keys and is combined with the bottom cover. The electroluminescent board is installed between the top cover and the bottom cover. The electroluminescent board includes at least one figured pattern to be displayed on a top surface of the keyboard on the top cover when the electroluminescent board is electrified to give light.

Abstract: The structure of a housing for a wireless mouse comprises an upper cover, a lower cover and a battery lid, wherein the upper cover has a battery-receiving chamber; it is characterized by that: a slide block is received in a slide-block receiving chamber in the lower cover, and has a first and a second trapezoidal block, a pusher rod and an elastic-element receiving portion. An elastic element is received in the elastic-element receiving portion to make the slide block slide to a position effecting tight engagement of the battery lid with the lower cover. A first rib having an engaging hook is provided in the battery lid, it is used to make engagement of the engaging hook with the first trapezoidal block when the battery lid is engaged with the lower cover, thereby the battery lid is tightly engaged with the lower cover. And a second rib is provided in the battery lid, it is used to move the second trapezoidal block when the pusher rod is moved to separate the battery lid from the lower cover.

Abstract: A test method for testing a wireless human input device being totally implemented in program codes which are built in the input device is disclosed. A step (A) is to start a test of transmission quality of the input device. A sub step (a1) is to judge whether received pressing signals obtained by pressing a series of keys of a wireless emitting device are same as some predetermined activating-for-testing pressing signals. A sub step (a2) is to execute a step (B) if the step (a1) is true, otherwise to execute a step (C). A step (B) is to execute a working-mode test of the input device. A sub step (b1) is that the emitting device transmits some sequential test data. A sub step (b2) is that a wireless receiving device of the input device receives the test data from (b1), then the test data are transmitted to an electronic machine connecting to the receiving device. A sub step (b3) is that the electronic machine outputs result data of testing in corresponding to the test data.

Abstract: The present invention is a clamping base, including a body capable of engaging with and holding a camera, and a second wall portion capable of being detached from and engaged with the body. The clamping base further includes a moving portion. The moving portion includes a sliding rod and a first wall portion set at one end of the sliding rod. The sliding rod can perform a push-pull movement on the body and the other end of the sliding rod is set inside the body.