摘要:
An electromagnetic resonance non-contact power transmission device includes a transmitter including a transmitter resonance element having a mechanism for discretely or continuously varying a resonant frequency, a transmitter excitation element coupled to the transmitter resonance element by electromagnetic induction, and an alternating current source for applying an alternating current at the same frequency as the resonant frequency to the transmitter excitation element, and a plurality of receivers each including a receiver resonance element having a specific resonant frequency, a receiver excitation element coupled to the receiver resonance element by electromagnetic induction, and an output circuit for outputting an electric current induced by the receiver excitation element. Electric power is transmitted selectively from the transmitter to any of the receivers having different specific resonant frequencies by changing the resonant frequency of the transmitter.
摘要:
An electromagnetic resonance non-contact power transmission device includes a transmitter including a transmitter resonance element having a mechanism for discretely or continuously varying a resonant frequency, a transmitter excitation element coupled to the transmitter resonance element by electromagnetic induction, and an alternating current source for applying an alternating current at the same frequency as the resonant frequency to the transmitter excitation element, and a plurality of receivers each including a receiver resonance element having a specific resonant frequency, a receiver excitation element coupled to the receiver resonance element by electromagnetic induction, and an output circuit for outputting an electric current induced by the receiver excitation element. Electric power is transmitted selectively from the transmitter to any of the receivers having different specific resonant frequencies by changing the resonant frequency of the transmitter.
摘要:
An SHF-band receiving apparatus is used for demodulating a signal received by an antenna and input through a cable by using an indoor receiving unit which comprises; demodulation means for demodulating an input signal supplied thereto through the cable; detection means for detecting a detection signal representing the direction of the antenna from a demodulated signal output by the demodulation means; and output means for generating a modulated signal for displaying information on the direction of the antenna by modulation of a carrier signal based on the detection signal produced by the detection means and for outputting the modulated signal through the cable to the antenna side.
摘要:
Disclosed herein is a power feeding apparatus, including: a power feeding portion adapted to feed an electric power in a wireless manner; and a storage body storing therein the power feeding portion. The storage body includes a main body, a first storage portion formed within the main body and storing therein the power feeding portion, and at least one second storage portion formed so as to be adapted to store or retrieve a power receiving apparatus as a storage object in or from the main body, the electric power of the power feeding portion stored in the first storage portion being adapted to be fed from the at least one second storage portion. At least a magnetically shielding portion is formed in an outer peripheral portion, and the at least one second storage portion forms a magnetically closed space in a state of being stored in the main body.
摘要:
Disclosed herein is a power feeding apparatus, including: a power feeding portion adapted to feed an electric power in a wireless manner; and a storage body storing therein the power feeding portion. The storage body includes a main body, a first storage portion formed within the main body and storing therein the power feeding portion, and at least one second storage portion formed so as to be adapted to store or retrieve a power receiving apparatus as a storage object in or from the main body, the electric power of the power feeding portion stored in the first storage portion being adapted to be fed from the at least one second storage portion. At least a magnetically shielding portion is formed in an outer peripheral portion, and the at least one second storage portion forms a magnetically closed space in a state of being stored in the main body.
摘要:
Disclosed herein is an electric power supplying apparatus, including: a resonance circuit having an inductance and a capacitance; and an electric power synthesizing circuit configured to synthesize electric powers of electric signals composed of a plurality of frequency components in a neighborhood frequency band as a frequency band near a resonance frequency decided by the inductance and the capacitance with one another, and output a resulting electric signal obtained through the electric power synthesis to the resonance circuit.
摘要:
A radio frequency receiver includes a receiver circuit for processing RF signals, an antenna to receive millimeter wave RF signals, and an attenuator circuit, coupled between the receiver circuit and antenna. In one embodiment, the attenuator circuit may be used to determine a signal strength of the millimeter wave RF signals, compare this signal strength to a first threshold value. If the signal strength is above the first threshold value, a level of attenuation applied to the millimeter wave RF signals may then be increased.
摘要:
A receiving apparatus, a receiving method, and a terminal unit. The receiving apparatus including a receiving portion for receiving a number of multiplexed broadcast waves, a separation portion for separating the number of multiplexed broadcast waves received by the receiving portion into a number of types of broadcast waves, a conversion portion for converting the number of types of broadcast waves separated by the separation portion into a number of IF signals of mutually different frequencies; and an output portion for outputting the number of IF signals converted by the conversion portion to a processing section.
摘要:
A polarization separator for separating orthogonal polarization waves into a horizontal polarization wave component and a vertical polarization wave component is minimized in size. A metal pole in the form of a thin metal bar is disposed in a circular waveguide of a waveguide member into which the orthogonal polarization waves are introduced, and reflects the horizontal polarization wave component so that it is outputted through an output terminal formed in a circumferential wall of the waveguide member. Meanwhile, the vertical polarization wave component propagates in a substantially rectangular waveguide provided rearwardly of the metal pole and is outputted from another output terminal. Since the rectangular waveguide is formed in a cutoff structure for the horizontal polarization wave component, the reflection means can be formed from the metal pole in the form of a thin bar, and consequently, the polarization separator can be minimized.
摘要:
A high frequency signal processing apparatus having signal line patterns formed on the upper surface of a dielectric substrate has a bias line pattern that extends from each of the signal line patterns. The bias line pattern has a first portion formed on the upper surface of the dielectric substrate, a second portion formed on the lower surface of the dielectric substrate, and a conductor extending through the dielectric substrate for providing an electrical connection between the first and second portions of the bias line pattern. A trap pattern is formed on the lower surface of the dielectric substrate and is connected to the second portion of the bias line pattern at a position spaced a predetermined distance away from the corresponding one of the signal line patterns. The predetermined distance is substantially equal to an odd number multiplied by T.multidot..lambda./4 where T and .lambda. are the periodicity and wave-length of the high frequency signal to be processed. A grounded pattern is also formed on the first surface of the dielectric substrate.