Industrial Technology Research Institute

National Yang Ming Chiao Tung University

Ping-Hsun Wu

Je-Kuan Jau

Chang-Ming Lai

Jian-Yu Li

Sheng-Feng Lee

Li Yuan Chang

Johnsee Lee

Wen-Shen Feng

Kun-An Chiu

A microwave motion sensor including a transmitting device, a signal processing device, a signal processing device, and a path switching device is disclosed. The transmitting device transmits a microwave signal to a space under detection. The receiving device receives a reflected microwave signal reflected from the space under detection. The signal processing device processes the reflected microwave signal received by the receiving device to judge whether there is a disturbance in the space under detection, wherein the signal processing device generates the microwave signal. The path switching device is coupled to the signal processing device and the transmitting device and results in different phase shifts to a plurality of transmission paths travelled by the microwave signal.

Microwave motion sensor

A method for growing epitaxial diamond is provided here. A metallic layer is deposited on a diamond substrate and is followed by an epitaxial diamond film deposited on top of the metallic layer. As a buffer layer, the metallic layer relieves stress accumulated in the thin film of the epitaxial diamond to prevent cracks. In consequence, diamond epitaxial layers with desired thickness and good quality can be obtained.

Method for growing epitaxial diamond

A non-contact motion detection apparatus includes at least one reception antenna, at least one transmission antenna, a voltage-controlled oscillator (VCO) and a phase lock loop (PLL). The at least one reception antenna receives a first wireless radio frequency (RF) signal. The at least one transmission antenna transmits a second wireless RF signal to an object which reflects the second wireless RF signal into the first wireless RF signal. The VCO outputs an oscillation signal to the at least one transmission antenna. The first wireless RF signal received by the at least one reception antenna is injected to the VCO. The PLL generates a control voltage to the VCO according to the oscillation signal from the VCO and a reference frequency. Controlled by the control voltage, which represents a motion information of the object, the oscillation signal of the VCO is locked to the reference frequency.

Non-contact motion detection apparatus

A multi-carrier receiver, multi-carrier transmitter and a multi-carrier transceiver system are provided. The multi-carrier receiver includes a first processing unit, a router and a second processing unit. The first processing unit has M first processing paths, applies intensity processing on at least a RF signal for outputting sub-carrier signals. The router has M input terminals and N output terminals, where the M input terminals are respectively coupled to the M first processing paths and receive the sub-carrier signals. The router outputs the sub-carrier signals to the N output terminals and the received signal at each output terminal of the router includes the sub-carrier signal at each input terminal. The second processing unit has N second processing paths respectively coupled to the N output terminals for demodulating the sub-carrier signals and applies an analog-to-digital conversion on the demodulated signals for generating digital signals, where M and N are greater than 0.

Multi-carrier receiver, multi-carrier transmitter and multi-carrier transceiver system

A multi-carrier receiver, multi-carrier transmitter and a multi-carrier transceiver system are provided. The multi-carrier receiver includes at least a first processing unit, a routed switch and a second processing unit. The first processing unit has M first processing paths, performs intensity processing to at least one RF signal for outputting sub-carrier signals. The routed switch has M input terminals and N output terminals, where the M input terminals are respectively coupled to the M first processing paths and receive the sub-carrier signals. The routed switch connects each input terminal to at least one output terminal or none of the output terminals according to a control signal. The second processing unit has N second processing paths respectively coupled to the N output terminals for demodulating the sub-carrier signals and performing an analog-to-digital conversion to the demodulated signals for generating digital signals, where M and N are greater than 0.

A power amplifier system, a control method thereof, and a control device thereof are provided. The power amplifier system operates in a non-linear switching mode according to an envelope amplitude of an input signal under control of the control device. When the power amplifier is operated in the non-linear switching mode, a supply voltage and an input signal of the power amplifier are provided to the power amplifier by the control device according to pre-measured properties of the power amplifier so as to equip the power amplifier with a high power-added efficiency (PAE) and a better linearity.

Power amplifier system and control method and control device thereof

A communication system comprises a bridge device being configured to manage multi-channel communications, a host terminal coupled to the bridge device through a first network, a participant terminal coupled to the bridge device through a second network, and a broadcasting device coupled to at least one of the host terminal and the bridge device for broadcasting at least one of the participant signals from the participant terminal and the host signals from the host terminal. The host terminal is configured to receive host signals and to transmit the host signals to the bridge device. The participant terminal is configured to receive participant signals and to transmit the participant signals to the bridge device. The bridge device is configured to receive the participant signals from the participant terminal and the host signals from the host terminal and transmit the participant signals from the participant terminal and the host signals from the host terminal only to the host terminal but not another participant terminal.

Growing community of inventors

Kaohsiung, Taiwan

Ping-Hsun Wu