摘要:
Designs and techniques associated with power amplifiers for amplifying RF signals to provide variable power amplification and improved linearity in various RF amplification circuits, including power amplifiers operated under the power back-off conditions.
摘要:
Disclosed are a wing deployment apparatus and an apparatus for launching a flying object having the same, the wing deployment apparatus including wings configured to be in a folded state and a deployed state, a driving unit connected to the wings, and configured to drive the wings to be switched from the folded state to the deployed state or vice versa, and a damper cooperative with the operation of the driving unit, and configured to damp a driving force of the driving unit from the start of the wings being moved to the completion of the movement of the wings.
摘要:
Provided is a method and apparatus for managing a device discovery in a wireless system. The device discovery management method may include: transmitting, by a discovery device, a discovery beacon that contains information associated with a discovery scanning duration; and receiving, from a neighboring device, a response message to the discovery beacon in the discovery scanning duration.
摘要:
Architectures and implementations of a transceiver system for wireless communications are presented, the system including one or more antennas supporting a single frequency band or multiple frequency bands, a transmit circuit, a receive circuit, and an isolation circuit that is coupled to the one or more antennas and the transmit and receive circuits and provides adequate isolation between the transmit circuit and the receive circuit.
摘要:
Disclosed is an apparatus for controlling the input 3rd order Intercept Point (IIP3) in a multi-mode multi-band wireless transceiver. The apparatus includes: a mixer for down-converting an incoming wireless signal which is received through each frequency band and is then low noise-amplified; a baseband chip for providing mixer IIP3 control information according to a current mode and transmission power level of the wireless transceiver; and a mixer IIP3 controller for controlling the IIP3 of the mixer based on the IIP3 control information. In a wireless transceiver without a band pass filter between a low noise amplifier and a mixer, the apparatus does not always increase the IIP3 of the mixer, but increases the IIP3 of the mixer in a wireless transceiver only when it is necessary to increase the IIP3. Therefore, the apparatus can reduce wasteful power consumption.
摘要:
Provided is an apparatus for allocating a sequence to a synchronization channel for a node identification (ID), the apparatus including: a base node sequence generator to generate a base sequence that is a sequence for a node ID of a base node; a relay node sequence generator to generate a relay sequence that is a sequence for a node ID of a relay node by transforming the base sequence; a baseband signal generator to generate a baseband signal by mapping the base sequence or the relay sequence to a frequency domain and a time domain; and a transmitter to transmit the baseband signal.
摘要:
Provided is an apparatus for allocating a sequence to a synchronization channel for a node identification (ID), the apparatus including: a base node sequence generator to generate a base sequence that is a sequence for a node ID of a base node; a relay node sequence generator to generate a relay sequence that is a sequence for a node ID of a relay node by transforming the base sequence; a baseband signal generator to generate a baseband signal by mapping the base sequence or the relay sequence to a frequency domain and a time domain; and a transmitter to transmit the baseband signal.
摘要:
Architectures and implementations of a transceiver system for wireless communications are presented, the system including one or more antennas supporting a single frequency band or multiple frequency bands, a transmit circuit, a receive circuit, and an isolation circuit that is coupled to the one or more antennas and the transmit and receive circuits and provides adequate isolation between the transmit circuit and the receive circuit.
摘要:
The present invention relates to a digital signal processing circuit, and more particularly, to a method and apparatus for generating a maximum value or a minimum value used for designing the digital signal processing circuit. An apparatus for obtaining a maximum value or a minimum value from N digital input signals may include N×W bit processing elements to receive an input of W bits of each of the N digital input signals, W OR operators to receive an input of N operation values output from bit processing elements, and to perform an OR operation, respectively, and W inverters to invert an output value for each of the W OR operators.
摘要:
Disclosed are a wing assembly including a wing movably accommodated in a launch tube, and a buffer unit detachably mounted to the wing to come in contact with the launch tube and configured to be separated from the wing after the wing comes out of an inner space of the launch tube, and an apparatus for launching a flying object having the same.