Abstract: A loop antenna adapted for a communication device is provided. The loop antenna includes a feed, a ground, a circular loop, at least one first tuning element, and at least one second tuning element. The circular loop is connected to the feed and the ground. The first tuning element is extended from the circular loop and corresponds to a first frequency band. The second tuning element is extended from the circular loop and corresponds to a second frequency band. Bandwidths of the first frequency band and the second frequency band of the loop antenna are changed by adjusting the first tuning element and the second tuning element, respectively.

Abstract: A charging method and a charging system are introduced for controlling a charging current by a PWM method. A charging IC is controlled to supply the charging current to a battery, and a control unit is used to generate a PWM signal with a duty cycle, and a filter unit is used to convert the PWM signal into a voltage signal to be supplied to the charging IC, and the control unit determines whether a current of a battery detected by the battery status detection unit reaches a regular current, so that a PWM signal with a duty cycle greater than the previous duty cycle by a default increased cycle is provided if the detected current has not reached the regular current. Thus, the feature of the PWM signal is used to set the charging current according to the capacity of the battery automatically.

Abstract: It is a snap-engagement structure whereby a mother body and a daughter body of a portable electronic device are snap-engaged with each other and thereby fixed to each other. The mother body includes two installation units. The snap-engagement structure includes a key unit, fastening units, and a first restoring unit. The key unit and the fastening units move relative to each other in different directions to effectuate enhanced snap-engagement, watertightness, and miniaturization.

Abstract: A method for updating an operating system (OS) and a handheld electronic apparatus are provided. In the method, when an updating instruction is received by the handheld electronic apparatus, an updating procedure is executed by an updating module of firmware in the handheld electronic apparatus. The updating procedure includes steps of backing up item data in a first storage area to a second storage area, updating the OS that is installed on the first storage area, and restoring the item data from the second storage area to the first storage area after the OS is completely updated.

Abstract: A method and an apparatus for recognizing color are provided. A color signal of a light source is obtained by a photo-sensing unit. After the color signal is received, a processing unit converts the color signal to a chromaticity coordinate, and compares the chromaticity coordinate with a gamut range to obtain a color corresponding to the light source.

Abstract: An antenna-integrated isolation cover comprises a main body, a first antenna unit, and a plurality of holes. The main body has a first side. The first antenna unit is disposed on the first side of the main body. The holes are disposed to the main body. An electronic apparatus using the antenna-integrated isolation cover is also disclosed.

Abstract: A magnetic stripe reader apparatus comprises a first casing, a second casing, a magnetic stripe reader unit, and at least a connecting element. The first casing has an opening, a first positioning portion, and an adjustable fixing portion. The second casing has a second positioning portion disposed corresponding to the first positioning portion, and a through hole disposed corresponding to the adjustable fixing portion. The magnetic stripe reader unit is disposed between the first and second casings, and has a magnetic stripe reader head and a fixing element disposed on a side of the magnetic stripe reader head. In assembly, the connecting element passes through the through hole and connects to the adjustable fixing portion to fix the first and second casings. The second positioning portion and the first positioning portions hold the fixing element, and the magnetic stripe reader head is exposed from the opening.

Abstract: A HomePlug having a panel replacement structure includes a HomePlug body and a panel. The HomePlug body has an operation side and a network port. The operation side has an insertion portion and a first coupling portion. The panel has an opening and second coupling portion. The second coupling portion can be coupled to the first coupling portion so as to allow the opening to correspond in position to the insertion portion. Changes in the appearance of the HomePlug are brought about by panel replacement. A heat dissipation vent is disposed at the junction of the operation side and an adjacent side, such that heat dissipation takes place at the adjacent side-neighboring portion of the heat dissipation vent when the panel is coupled to the operation side and covers the operation side.

Abstract: A testing fixture is provided, which is adapted to adjust the position of an object to be tested and includes a first translation mechanism, a second translation mechanism and a height-adjusting mechanism. The first translation mechanism is able to move along a first axis, the second translation mechanism is disposed at the first translation mechanism and is able to move along a second axis perpendicular to the first axis, and the height-adjusting mechanism is disposed at the second translation mechanism and adapted to hold the object to be tested and is able to move along a third axis perpendicular to the first axis and the second axis.

Abstract: A testing fixture and a testing method are provided. The testing fixture is configured to be assembled to an accommodating space of an electronic device. The testing fixture has a connector configured to communicate a gas controlling apparatus. The gas controlling apparatus controls the gas pressure inside the electronic device through the connector and the testing fixture, so as to perform a gasproof test.

Abstract: A waterproof testing system and a method thereof are provided. The method includes a master device controls a gas tester to adjust gas pressure for a sample; when the master device determines an effect pressure value is equal to a goal pressure value, the master device controls the gas tester to adjust gas pressure for the sample to the goal pressure value continuing in a first length of time; the master device determines whether the effect pressure value still maintains within a first pressure range; if yes, the master device controls the gas tester to stop adjusting the gas pressure for the sample; the master device determines whether the effect pressure value maintains within a second pressure range; if yes, the master device determines a time the effect pressure value maintains within the second pressure range exceeded a second length of time; and if yes, the waterproof test is successful.

Abstract: A product quality improvement feedback method is provided. The method includes the following steps. Provide a first checklist, a second checklist, and a third checklist in a design period, a trial production period, and a mass production period respectively. Execute a failure mode and effects analysis to the first checklist, the second checklist, and the third checklist so as to obtain a risk priority number respectively. When the first risk priority number is greater than a specific value, feedback each result of the failure mode and effects analyses to the first checklist, the second checklist, the third checklist, a design list, a trial production list or a mass production list.

Abstract: A waterproof element with reinforced structure includes a flexible body and a rigid element. The flexible body has a first opening. The rigid element is disposed in the flexible body. The rigid element has a second opening corresponding to the first opening. An electronic device with the waterproof element is also disclosed.

Abstract: A fixer for a loudspeaker includes a hollow frame, a pressing part, a positioning part and a fixing part. The hollow frame is disposed around a loudspeaker to limit the displacement of the loudspeaker. The pressing part is disposed on an inner surface of the hollow frame to press the loudspeaker. The positioning part is disposed on one side of the hollow frame, and the fixing part is disposed on another side of the hollow frame. An electronic device using the fixer for a loudspeaker is also disclosed.

Abstract: A flexible terminal includes two flexible parts and a connecting part. Each flexible part includes an outer segment having a first end and a second end, a first bent segment having one end coupled to the first end, and an inner segment coupled to the other end of the first bent segment. The connecting part is coupled to two second ends of the outer segments. Due to the flexible arrangement of the flexible parts, the flexible parts can be flexibly deformed to fit the dimension of a fastening element. In addition, the inner segments of the flexible terminal can clip the fastening element so as to avoid the relative displacement of the flexible terminal and the fastening element during the operation.

Abstract: A multiband antenna for an electronic device includes a resonance radiation body, a grounding end, and a spread spectrum portion. The resonance radiation body receives a first electromagnetic wave signal at a first frequency (known as fundamental frequency). The grounding end and the electronic device are connected. The spread spectrum portion is disposed between the resonance radiation body and the grounding end. The spread spectrum portion includes first and second shunting bodies to form a loop bypass between the resonance radiation body and the grounding end and thereby decrease and increase the first frequency by a specific frequency value so as to define a bandwidth equal to two times the specific frequency value. Hence, the electronic device receives a second electromagnetic wave signal at any frequency within the bandwidth. Since the spread spectrum portion defines the bandwidth, the electronic device can receive the first and second electromagnetic wave signals.

Abstract: A mobile power supply with a data backup function and a data recovery method thereof are introduced. The mobile power supply supplies power to a portable electronic device installed with an Android operating system via a USB port. The mobile power supply copies a predetermined datum from the portable electronic device to a memory unit in the mobile power supply in conjunction with a control unit to perform first-stage data backup. Then, the USB port is electrically connected to a computer apparatus, such that the computer apparatus copies the predetermined datum from the memory unit to the computer apparatus while recharging the mobile power supply to perform second-stage data backup. Accordingly, the portable electronic device or the mobile power supply performs a data backup operation easily and quickly while being recharged.

Abstract: A voltage resolution adjustment system and method increase voltage resolution of an output voltage of a processor from a first voltage resolution to a second voltage resolution. The system includes a processing module, a voltage-dividing module, and an amplifying unit. The processing module generates a first voltage of a first voltage resolution. The voltage-dividing module increases the first voltage of the first voltage resolution to a second voltage of a second voltage resolution. The amplifying unit increases the second voltage to a third voltage (i.e., the output voltage). After comparing the third voltage and the first voltage and detecting a voltage difference therebetween, the processing module generates a control signal for changing a voltage partitioning ratio of the voltage-dividing module to render the third voltage and the first voltage equal, wherein the third voltage is of the second voltage resolution.

Abstract: A method of examining a test apparatus for a wireless network device is performed with a computer apparatus, a vector signal analyzer, and a vector signal generator and includes a signal receiving/transmitting step and a result outputting step. A transmitting signal test value and a receiving signal test value of the wireless network device test apparatus are measured by transmitting a reference signal of the vector signal generator and performing a receiving procedure of the wireless network device test apparatus and by transmitting a test signal of the wireless network device test apparatus and performing a receiving procedure of the vector signal analyzer, respectively. After the computer apparatus outputs an error of the wireless network device test apparatus and a comparison table of standard tolerance. Accordingly, the method enables self-testing to be performed and thereby dispenses with high fees charged by examination institutions for examining the test apparatus.

Abstract: A power supply mode switching circuit and method switch between power supply modes of a power supply device dynamically based on an operating current required for operation of an electronic product, such that the power supply device supplies a supplying current corresponding to the operating current. The circuit comprises a sampling unit, an amplifying unit, a comparing unit. The circuit is disposed between the power supply device and the electronic product, samples the supplying current from the power supply device with the sampling unit, and converts the supplying current into a sampling voltage. The amplifying unit converts the sampling voltage into an amplifying voltage by voltage amplification and outputs the amplifying voltage to the comparing unit. After comparing the voltage level of a reference voltage and that of the amplifying voltage, the comparing unit generates a control signal for switching the power supple modes of the power supply device.