摘要:
The present invention provides a coexistence operation method for a wireless system, wherein the wireless system is capable of establishing a first wireless link and a plurality of second wireless link. The coexistence operation method comprises applying different time slots to the first wireless link and a first link of the second wireless links; and applying a different frequency band to a second link of the second wireless links when is the different time slots are applied to the first wireless link and the first link of the second wireless links.
摘要:
An electronic device with an embedded three-dimensional antenna is disclosed. The electronic device includes a printed circuit board (PCB) and an embedded three-dimensional antenna. The embedded three-dimensional antenna includes a radiation element and a connection element. The connection element includes a first connection part and a second connection part. The first and second connection parts are coupled to the PCB, and utilized for transferring signals of the embedded three-dimensional antenna to the PCB. The first and second connection parts further clamp the PCB to attach the embedded three-dimensional antenna on the PCB.
摘要:
A feeding device for a smart antenna includes a signal reception terminal, a first antenna feeding terminal, a second antenna feeding terminal, a power divider, and a switching circuit. The signal reception terminal is utilized for receiving a transmitting signal. The first antenna feeding terminal and the second antenna feeding terminal are utilized for outputting feeding signals to the two antennas, respectively. The power divider, having a first input port, a second input port, a first output port, and a second output port, is utilized for distributing energy received by the first input port or the second input port equally to the first output port and the second output port, and making signals of the first output port and the second output port having 90 degree phase difference. The switching circuit performs switching operations to control electrical connections of the power divider according to a control signal.
摘要:
In a mesh network, when a wireless mesh link exists between a first mesh access point and a second mesh access point, the first mesh access point can deliver a multicast packet to the second mesh access point through the wireless mesh link. When the second mesh access point determines that the multicast packet from the first mesh access point is a redundant packet, the second mesh access point will send a multi-path notice to the first mesh access point. After receiving the multi-path notice, the first mesh access point stops delivering the multicast packet through the path.
摘要:
A multimode line driver circuit is provided. The multimode line driver circuit has a first driver circuit for receiving a first differential input signal and transmitting a first differential output signal, and a second driver circuit for receiving a second driver circuit for receiving a second differential input signal and transmitting a second differential output signal. The multimode line driver circuit also has a first switch coupling the first driver circuit to a first power supply and a second switch coupling the second driver circuit to a second power supply. The multimode line driver circuit also has a transformer coupled to the output interface for transforming the first differential output and the second differential output and a mode controller configured to close the first switch in the first mode and to close the second switch in the second mode.
摘要:
A comparator for a pipelined ADC includes a sampling circuit coupled to a plurality of differential input voltages and a plurality of differential reference voltages, for sampling the plurality of differential input voltages according to a first clock signal and sampling the plurality of differential reference voltages according to a second clock signal, a preamplifier coupled to the sampling circuit comprising a positive input terminal, a negative input terminal, a positive output terminal, and a negative output terminal, for amplifying a voltage across the positive input terminal and the negative input terminal for generating a plurality of differential output voltages, and a latch circuit coupled to the preamplifier for latching the plurality of differential output voltages.
摘要:
A memory allocation method for a direct memory access controller (DMAC) in a limited-memory-size computer system includes the steps of allocating a memory space having continuous memory addresses to form a buffer of the DMAC; dividing the memory space successively into a plurality of first memory blocks and a second memory block, wherein the size of the second memory block is equal to a maximum frame size possibly accessed by the DMAC; and assigning the plurality of first memory blocks and the second memory block to a plurality of descriptors in order, wherein each of the plurality of descriptors is utilized for recording a memory address of a corresponding memory block as a pointers for the corresponding memory block.
摘要:
A method for enhancing USB transmission rate is disclosed. The method produces a second packet before receiving a callback signal corresponding to a first packet, thereby reducing the waiting time for receiving the callback signal and thus enhancing USB transmission rate.
摘要:
A system for detecting wireless base stations and a method thereof are provided. The system includes a detection module, a count module, a storage module, and a switch module. The method includes sending a detection request to a channel, determining whether a wireless base station corresponding to the channel physically exits, and whether the channel is detected, based on a detection response returned by the channel; returning a detection response; calculating the sum of the detection request and the detection response so as to create a count result to be stored in the storage module; and switching directly from the wireless base station currently in use and the corresponding channel to the next undetected channel and a corresponding wireless base station, based on the count result.
摘要:
The present invention provides a multi-functional peripheral apparatus to be connected to a host. The apparatus comprises a connection module, a plurality of peripheral modules, and a control module. The connection module provides a transmission interface to receive a peripheral output signal from the host. Each of the peripheral modules performs a specific peripheral function. The peripheral modules further comprise a data storage memory to store at least one peripheral driver. The control module receives the peripheral output signal from the connection module and produces a corresponding peripheral control command to control and to enable the selected peripheral module specified in the peripheral output signal to perform the corresponding specific peripheral function. When the apparatus is connected to the host, the host allows the control module to install the peripheral driver into the host so that the host employs the driver to drive the selected peripheral modules.