Abstract:
This invention relates to an antenna base, comprising a printed circuit board. A base is designed in a region at an appropriate location on the printed circuit board. The base is printed with silver glue on the printed circuit board. This base serves as the antenna base, or this base along with the printed circuits on the printed circuit boards form the antenna base, so that the antenna can effectively transmit signals when the keyboard, mouse or other computer peripheral equipment is connected with the antenna.
Abstract:
The present invention is a power saving device disposed in a mouse and comprises at least one sensor in communication with both battery and a signal emitter. The sensor is located within the mouse housing and is disposed under a window. When the user holds the mouse and blocks the window, the sensor receives a correct signal and connects to the operating power supply of the signal emitter to make the mouse operate normally. When the user does not use the computer for a while and the mouse is in a suspending mode, the sensor receives an incorrect signal to disconnect from the operating power supply so the signal emitter of the mouse does not need to perform scanning continuously any more, thus decreasing power consumption.
Abstract:
The invention provides a wireless transmission device, including a first circuit board, a second circuit board and a third circuit board. The first circuit board at least disposes more than one electronic elements. The second circuit board has an antenna, and the antenna is electrically connected to the first circuit board. The second circuit board is arranged at a predetermined angle to the first circuit board to enhance the receiving ability. The third circuit board is connected to the first circuit board and disposes a USB connector electrically connected to the first circuit board so that the change in form of the device can be easily made.
Abstract:
An expandable multi-computer switching device includes a master switching module and a slave switching module. The master switching module includes a transmission interface, a plurality of ports coupled to the transmission interface, a hub device coupled between the transmission interface and the plurality of ports, and a master control unit coupled to the hub device. The slave switching module includes a first transmission interface coupled to the transmission interface, a second transmission interface coupled to an interface of a computer system, a third transmission interface coupled to the first transmission interface, a switch module coupled between the first transmission interface and the second transmission interface, and a slave control unit coupled to the first transmission interface and the switch module, for turning on the switch module to couple the first transmission interface to the second transmission interface according to the control signal outputted from the master control unit.
Abstract:
A method for negotiating keyboard commands between a computer and an external keyboard is provided. The computer and the external keyboard have respective NL (number lock) status. When the external keyboard is pressed, the external keyboard act as the following mechanics. When NL status of the computer is “Off” and NL status of the external keyboard is “On”, and a time internal between adjacent serially-pressed numeric keys of the external keyboard is less than a predetermined time period, a key code of NL on the external keyboard is firstly sent to alter NL status of the computer from “Off” to “On”, key codes of pressed numeric keys of the external keyboard are secondly sent to the computer, and the key code of NL on the external keyboard is finally sent to alter NL status of the computer from “On” to “Off”.
Abstract:
The invention provides a wireless transmission device, including a first circuit board, a second circuit board and a third circuit board. The first circuit board at least disposes more than one electronic elements. The second circuit board has an antenna, and the antenna is electrically connected to the first circuit board. The second circuit board is arranged at a predetermined angle to the first circuit board to enhance the receiving ability. The third circuit board is connected to the first circuit board and disposes a USB connector electrically connected to the first circuit board so that the change in form of the device can be easily made.
Abstract:
A multimedia keyboard with instrument playing device comprising a case, a connector and flexible protruding plate mounted on one end of the case. A protruding plate can be inserted into an available slot in the multimedia keyboard, providing a signal connection and a flexible clip. Playing elements such as guitar strings, piano keys, or a drumhead are mounted on the exterior of the case. Several series of flexible conducting elements connected to the playing elements are mounted within the case. When the playing elements are struck or plucked, the conducting elements will deform in direct proportion to the amount of force that has been applied. One signal pickup circuit board including several carbon film resistance plates is mounted on the top or bottom of each flexible conducting elements. When a flexible conducting elements deforms, the changing area of contact between its deformed portion and the carbon film resistance plates can be used to generate analog signals in direct proportion to the amount of force applied to the playing elements. These signals allow the computer to generate sound length, tone, and volume corresponding to those of the playing elements.
Abstract:
A foldable mouse is disclosed. The foldable mouse includes a mouse body, a support portion, and a pivoting portion for connecting the support portion and the mouse body. The mouse body has a hollow surface and a sensing surface neighboring the hollow surface. The sensing surface is in contact with a reflection plane, and the hollow surface forms a cavity on the mouse body. The support portion can be contained in the cavity.
Abstract:
A computer mouse is described. The main body has a base part and a movable part. The movable part is slidingly connected with the base part and the movable part slides along a plane that is parallel to the base part. A cover is pivotally connected with the main body by end portions thereof such that the cover is swiveled relative to the main body. An inner wall of the cover has a convex surface. When the movable part is in contact with the convex surface, unconnected end portions of the main body and the cover form a greater height than the pivotally connected end portions of the main body and the cover do.
Abstract:
A control method of an input device is provided. Input signals are received and whether the input device is in a sustained mode is determined. A reference frequency of the input signals is calculated. The reference frequency may be the maximum frequency or the average frequency of the input signals. Output signals are transmitted lastingly when the input device is in the sustained mode. The frequency of the output signals is proportional to the reference frequency. A control system of the input device is also provided.