Abstract: A battery charging method for a device that has a PDA, a wireless communication system, and a power system having a battery and is charged via an external charging cable. The device further has an external charging circuit for charging the battery. The wireless communication system has an internal charging circuit for charging the battery. The battery charging method includes performing current charging to the battery via the external charging circuit by using the external charging cable; turning on the wireless communication system; and turning on the internal charging circuit for charging after the wireless communication system is turned on.

Abstract: A handheld device with a digital album to redisplay previously captured physical images and the applications of the same are provided, wherein the handheld device comprises an image-capture unit, an image-compression unit and a memory unit. The image-capture unit is used to garb initial image data by converting the physical image into initial image data. The image-compression unit is used to convert the initial image data into compressed data. The memory unit, used to store the compressed data, whereby the physical image can be redisplayed directly without the aid of an extra device.

Abstract: A speaker module and a mobile device having the speaker module are provided herein. The speaker module includes a speaker unit and a speaker box. The speaker box has a wall defining an aperture receiving the speaker unit therein. The speaker box has a first speaker chamber, a second speaker chamber and a connecting section connecting the first speaker chamber and the second speaker chamber. The cross-sectional height of the space of the connecting section is lower than that of the first speaker chamber or the second speaker chamber. In other option, the space of the connecting section is smaller than that of the first speaker chamber or the second speaker chamber.

Abstract: A coordinate positioning device and the method thereof for detecting the coordinate of a contact point even in an environment of periodic noises. Firstly, obtain a first and a second sampling values of the contact point at a first and a second time points, respectively. Next, determine if the absolute value of the difference between the first and the second sampling values is smaller than a first threshold value. If not, neglect this contact point; if yes, obtain a third sampling value of the contact point at a third time point. Lastly, determine if the absolute value of the difference between the first sampling value and the third sampling value is smaller than a second threshold value or not: if not, neglect this contact point; if yes, use the average value of the first and second sampling values to obtain the coordinate value of the contact point.

Abstract: A transmission device of a handheld electronic device including a housing having an inlet and an outlet, a fan installed within the housing for generating airflow from the inlet to the outlet and a guide tube installed on the housing having a first opening and a second opening, the first opening is located at the outlet side, the second opening is coupled to an opening of the handheld electronic device in a detachable manner to allow airflow generated by the fan into the handheld electronic device, the guide tube can improve cooling effect of the transmission device and the transmission device is capable of cooling the handheld electronic device to solve the heating problem while the handheld electronic device is being utilized.

Abstract: A method for switching communication network used in a first electronic device which is able to access many kinds of communication networks is disclosed. If the first electronic device receives a switching instruction at a time when a communication link and a data transmission have been established between the first electronic device and a second electronic device via a first communication network. Firstly, the first electronic device obtains an identification number of a third electronic device for use in a second communication network. Then, the communication link is established between the first electronic device and the third electronic device via the second communication network according to the identification number. Finally, the data is transmitted using the communication link between the first electronic device and the third electronic device via the second communication network, and disconnects the original communication link via the first communication link.

Abstract: An antenna structure for operating multi-band system is disclosed. The antenna structure at least comprises a first radiation metal wire and a second radiation metal wire. These radiation metal wires send signal through the same feed point and provide a ground surface. The radiation metal wires are embedded into the circuit board having a hole. The design avoids the complexity of the antenna structure, reduces cost, and improves production capabilities. The length of the first radiation metal wire is bigger than the second radiation metal wire for using in a low frequency operating band and the second radiation metal wire is used in a high frequency operating band. These radiation metal wires can be fixed into the hole of the circuit board. The entwining of the radiation metal wires can bend according to a space provided by a case. Therefore, the antenna structure can be protected by the case without damages from outside forces.

Abstract: A keyboard module (300) includes a printed circuit board (302), a Qwerty keyboard (304) mounted on the printed circuit board. A plurality of application buttons (308) mounted on the printed circuit board and located within the Qwerty keyboard, and a navigator button (306) mounted on the printed circuit board and located also within the Qwerty keyboard. The navigator button has four direction buttons (316a, 316b, 316c, 316d) each having a profile higher than that of keys of the Qwerty keyboard. Each of four keys of the Qwerty keyboard neighboring the navigator button is located between two neighboring direction buttons of the navigator button.

Abstract: The motion determination apparatus includes a motion sensor for sensing motion of an electronic device and sending out a motion parameter. A processor receives the motion parameter to determine whether or not his motion is a meaningful motion. A device controller activates a device function according to the determination.

Abstract: An intuitive image navigator is described. The intuitive image navigator comprises a direction control device and a rotational control ring. The image direction control device moves an image shown on a display of an electronic device, for example, an electronic map on a display of a portable electronic device. The rotational control ring is configured around the image direction control device to control the display condition of the image on the display. The image direction control device provides an intuitive omni-directional variable-speed scrolling function and the rotational control ring provides a stepless variable-speed changing function for browsing the image.

Abstract: A circuit and operating method for an integrated interface of a PDA and a wireless communication system are disclosed. The circuit includes a PDA-turn-on-wireless-communication-system signal line, a PDA-reset-wireless-communication-system signal line, a PDA-state signal line, a wireless-communication-system-state/wake-up-PDA signal line and two serial ports, wherein the serial ports are electrically connected between the PDA and the wireless communication system, and one of the two ports is used to transmit control signal and status data, another one of the two ports is used to transmit digital data signals. Moreover, the PDA-turn-on-wireless-communication-system signal line and the PDA-reset-wireless-communication-system signal line makes the PDA able to turn on and reset the wireless communication system, respectively. The PDA-state signal line and the wireless-communication-system-state/wake-up-PDA signal line transmit the status of the PDA and wireless communication system to each other.

Abstract: A connector for connecting a host and a peripheral device is disclosed. The connector includes N pin groups and each of the N pin groups has different pin length, wherein N is a positive integer and is greater than or equal to 3. The first pin group consists of ground pins and has the longest pin length.

Abstract: A data transmission method and the transmission circuit thereof for transmitting data between a host and a peripheral apparatus are disclosed. The data transmission method includes the following steps. First, a clock signal is transmitted by a first pin. Then, a data signal is transmitted by a second pin according to the timing of the clock signal.

Abstract: A compatible connector for first and second joints having different pin quantities is disclosed. The connector includes a base, at least one first pin, and at least one second pin. The base includes a first connecting surface and a second connecting surface. The first pins are disposed on the first connecting surface and the quantity of the first pins is the same as the pin quantity of the first joint. In addition, the second pins are disposed on the second connecting surface and the total quantity of the second pins and the first pins is the same as the pin quantity of the second joint.

Abstract: A speaker module (200) having a speaker unit (210) and a speaker box (220) is provided. The speaker module is mounted in a casing (22) of a hand-held electronic device (20). The speaker box (220) has a wall defining an aperture (222a) receiving the speaker unit therein. The speaker box has a neck section (224) formed by narrowing a peripheral wall of the speaker box. The neck section connects front and rear speaker chambers (222, 226) each of which has a cross-sectional dimension larger than that of the neck section. The speaker module is mounted on a printed circuit board (24) by fitting the neck section in a hole (24a) of the printed circuit board. The speaker unit is mounted in a front wall of the front chamber (222). An antenna module (26) is mounted in the casing behind the speaker module.

Abstract: A method for manufacturing a helix antenna. A ceramic cylinder including a central through hole, a first annular surface, and a second annular surface is provided. The first annular surface is opposite the second annular surface. The central through hole is between the first and second annular surfaces. A flexible printed circuit board with a metal feeding strip extending outside the flexible printed circuit board is provided. The flexible printed circuit board is swirled and attached to the circumferential surface of the ceramic cylinder.

Abstract: An intuitive display controller on a portable electronic device is provided. The intuitive display controller includes a motion sensor and a processor coupled with the motion sensor. The motion sensor is for detecting at least one acceleration parameter of the electronic device. The processor generates at least one displacement parameter of the portable electronic device by processing the acceleration parameter and adjusts a display page of the portable electronic device according to the displacement parameter.

Abstract: A plug detection circuit. The detected circuit is disposed in an electronics device with an earphone jack, accepting plugs with a plurality of conductive rings. The detection circuit has a plurality of pins, wherein a first pin detects, and outputs a first logic potential, and a second pin detects the potentials at the conductive rings and outputs a second logic potential. The detection circuit determines the type of earphone connected to the earphone jack.