Abstract:
A frequency counter obtains a cycle number of a clock of a target signal by a reference signal and a clock mask synchronous with the target signal, calculates a frequency of the target signal based on the cycle number, corrects the frequency according to a plurality of phase shift signals generated based on the reference signal, and minimizes an error of the calculated frequency by increasing the quantity of the phase shift signals, so as to enhance the accuracy of the calculated frequency of the target signal, speed up measurement, and reduce required circuit areas.
Abstract:
A method for measuring frequency includes the steps of obtaining the cycle number of the clock rate of a signal under test based on a reference signal and a clock mask synchronous with the signal under test; obtaining a frequency of the signal under test based on the cycle number; correcting the frequency of the signal under test based on a plurality of phase shift signals generated based on the reference signal; and minimizing an error of the frequency of the signal under test by increasing the quantity of the phase shift signals. The method enhances the accuracy of the obtained frequency of the signal under test, speeds up frequency measurement, and reduces the required circuit areas. A system for measuring frequency is further introduced for use with the method.
Abstract:
A system and a method for managing solder paste are disclosed. The storage information of solder paste cans stored in a storage room is established, production information is accessed from a production managing system for analyzing an amount of solder paste cans in need, the solder paste cans to be used are inquired and obtained from the storage room, and the solder paste cans are delivered to the warm up room for warm up treatment. The solder paste is thus systematically managed, such that the efficacy of management is improved and labor cost is reduced.
Abstract:
An electronic device carrier comprising a base and rolling devices. When an electronic device is removed from a receiving chamber of the base, the rolling devices can reduce friction effectively and resilient force of the rolling device can fix the electronic device in the receiving chamber. The electronic device carrier further includes a transmission unit for transmitting data whenever the electronic device is positioned in the receiving chamber.
Abstract:
A hybrid circuit for a Very-High-Speed Digital Subscriber Line (VDSL) blocks noise and includes a transceiving unit, a voltage transformation module, a direct current (DC) blocking capacitor, a receiving unit, and a transmitting unit. The voltage transformation module blocks noise generated as a result of transmission of an upstream signal and a downstream signal at the transceiving unit, and includes a first voltage transformation unit and a second voltage transformation unit. The DC blocking capacitor is series-connected between primary coils of the first and second voltage transformation units for preventing the direct current in the VDSL from affecting the transmission of the upstream signal and the downstream signal. Accordingly, the hybrid circuit simplifies the circuit design of the VDSL, cuts costs incurred by electronic components, and reduces the area required for circuit layout.
Abstract:
A carrier and a pressing device for attaching a panel to a casing are disclosed. The carrier includes a carrier main body; a carrier plate; a plurality elastic components; and a supporting component. The carrier plate is configured to carry the panel. The supporting component is connected to the carrier main body and the carrier plate to be a pivot for the carrier plate to rotate around the carrier main body. Each of the elastic components is connected to the carrier plate and the carrier main body, such that the carrier plate may restore upon having force applied thereon and tilt, so as to be adapted to the different sizes of the panel and the casing. Therefore, the panel is completely attached to the casing, and the attachment of the panel and the casing is thus effectively improved.
Abstract:
A pressing device for attaching a touch panel to a casing is disclosed. The pressing device includes a main body, a pressing mechanism, a mounting base for mounting and positioning the casing, a plurality of guiding poles, and a carrier for carrying the touch panel. The guiding poles pass through the pressing mechanism for guiding the pressing mechanism to move in a perpendicular direction corresponding to the mounting base. The pressing mechanism has a protruding portion for pressing the casing, and the protruding portion is formed corresponding to the outline of the casing, such that the pressing force applied on the casing is even and the casing would not sway. The main body has a plurality of tracks, so as to have a carrier with a large area moving thereon. Thus, the carrier has sufficient area for carrying a touch panel.
Abstract:
A protective device is applicable to a casing provided with a first coupling portion and configured for use with an outdoor communication apparatus. The protective device includes a body and a shielding portion. The body is configured to shield the front of the casing and provided with a second coupling portion coupled to the first coupling portion. The shielding portion is laterally provided to the side of the body for shielding the casing sideways. Hence, the shielding portion of the protective device shields the casing from direct irradiation of sunlight, prevents the outdoor communication apparatus from being overheated, and protects the outdoor communication apparatus against rainwater and dirt. A casing configured for use with an outdoor communication apparatus and equipped with the protective device is further provided.
Abstract:
A status simulation testing method is for use in testing a portable device having at least one angular velocity sensor and includes positioning the portable device on an oblique plane; moving and flinging the portable device at an increasing velocity to enable the portable device to move at an acceleration and an angular velocity; generating a sensing value by the angular velocity sensor of the portable device; and determining whether a sensing operation of the angular velocity sensor of the portable device is functioning well according to the sensing value. Accordingly, the method not only simulates a usage status of the portable device, but also tests the sensor of the portable device quickly, consistently, and accurately. A status simulation testing system is further introduced.
Abstract:
A framework of wireless network access device, comprising a communication circuit board with a first electrical connecting portion, a wireless transmission circuit board with a second electrical connecting portion, and at least a signal transmission element connecting with the first and second connecting portions respectively, wherein the signal transmission element is provided for transmitting a signal between the communication circuit board and the wireless transmission circuit board, so as to solve drawbacks of the prior art.