摘要:
An extension subordinate machine system enabling high-accuracy correction of the cable loss by adjusting the gain by using the pilot signal and further enabling high-accuracy correction of the loss caused by distribution by a distributor even when a relay device adaptor is connected to the extension subordinate machine through the distributor. With this system, a main machine control section (201) outputs a pilot signal generated by a pilot signal generating section (203) when a switching section (205) sets a measurement mode. A pilot detecting section (215) detects the reception level. A control section (216) detects the pilot signal and sets the attenuation factor according to the reception level of the detected pilot signal. A variable attenuator (206) attenuates the up-link signal and the down-link signal at the set attenuation factor to adjust the gain.
摘要:
An extension subordinate machine system enabling high-accuracy correction of the cable loss by adjusting the gain by using the pilot signal and further enabling high-accuracy correction of the loss caused by distribution by a distributor even when a relay device adaptor is connected to the extension subordinate machine through the distributor. With this system, a main machine control section (201) outputs a pilot signal generated by a pilot signal generating section (203) when a switching section (205) sets a measurement mode. A pilot detecting section (215) detects the reception level. A control section (216) detects the pilot signal and sets the attenuation factor according to the reception level of the detected pilot signal. A variable attenuator (206) attenuates the up-link signal and the down-link signal at the set attenuation factor to adjust the gain.
摘要:
A wireless relay apparatus which can provide a wireless relay apparatus compatible with an MIMO system without changing the wiring of an already installed wireless relay apparatus or wireless relay system not compatible with the MIMO system, and which is able to minimize the costs that are generated in installing a wireless relay apparatus compatible with the MIMO system. In this apparatus, a second wireless apparatus (160) is connected to a first wireless apparatus (150) by a coaxial cable (170). The downlink signal wireless unit (111) caries out wireless processing of a downlink signal received at an antenna (102), and in this wireless processing, down-converts the downlink signal received at the antenna (102) to a frequency different than the frequency of the downlink signal received at an antenna (101). The duplexer (115) combines the downlink signal which was subjected to wireless processing at a downlink signal wireless unit (109) and the downlink signal which was subjected to wireless processing at the downlink signal wireless unit (111), and transmits the same using the same coaxial cable (170) to the second wireless apparatus (160).
摘要:
A booster capable of preventing itself from adversely influencing a base station. This booster comprises a plurality of downstream signal amplifying parts (111-1 to 111-4) and a plurality of upstream signal amplifying parts (112-1 to 112-4). A received signal analyzing part (116) analyzes the perch channel information of a signal received from a base station to generate analysis information. When the analysis information shows that the reception quality of the received signal is below a threshold value, halt control parts (118,124) halts the operations of those ones of the downstream signal amplifying parts (111-1 to 111-4) and upstream signal amplifying parts (112-1 to 112-4) that are related to that analysis information. When the analysis information shows that a path-loss value or a base station interference power is above a threshold value, the halt control parts (118,124) may halt the operations of those ones of the downstream signal amplifying parts (111-1 to 111-4) and upstream signal amplifying parts (112-1 to 112-4) that are related to that analysis information.
摘要:
A booster capable of preventing itself from adversely influencing a base station. This booster comprises a plurality of downstream signal amplifying parts (111-1 to 111-4) and a plurality of upstream signal amplifying parts (112-1 to 112-4). A received signal analyzing part (116) analyzes the perch channel information of a signal received from a base station to generate analysis information. When the analysis information shows that the reception quality of the received signal is below a threshold value, halt control parts (118,124) halts the operations of those ones of the downstream signal amplifying parts (111-1 to 111-4) and upstream signal amplifying parts (112-1 to 112-4) that are related to that analysis information. When the analysis information shows that a path-loss value or a base station interference power is above a threshold value, the halt control parts (118,124) may halt the operations of those ones of the downstream signal amplifying parts (111-1 to 111-4) and upstream signal amplifying parts (112-1 to 112-4) that are related to that analysis information.
摘要:
A semiconductor substrate thermal treatment apparatus enables excellent heating control in suppressing influence of mutual induction between induction heating coils even when the induction heating coils are arranged in the vertical direction while providing horizontal magnetic flux to susceptors. The apparatus indirectly heats wafers mounted on horizontally-arranged susceptors including induction heating coils to form alternate-current magnetic flux in a direction parallel to a mount face of the susceptor. The wafer are arranged at an outer circumferential side of the susceptor. The induction heating coils are structured with at least one main heating coil and subordinate heating coils electromagnetically coupled with the main heating coil. Inverse coupling coils inversely-coupled to the subordinate heating coils are provided to the main heating coil, and zone control means separately controls a power ratio while synchronizing frequencies and current waveforms of current to the main heating coil and adjacent subordinate heating coils.
摘要:
A cyclic azine compound represented by general formula (1): wherein each Ar1 represents an aromatic group, which is unsubstituted or substituted by a C1-4 alkyl group, a phenyl group or a pyridyl group; and A represents a group selected from those which are represented by general formulae (2) to (5), described in the description. The cyclic azine compound is useful for an organic compound layer of fluorescent or phosphorescent EL device.
摘要:
The present invention includes: a plurality of induction heating coils (11, 12, 13) which are disposed adjacently; capacitors (21, 22, 23) each of which is connected in series thereto; a plurality of inverters (30, 35, 31) each of which applies a high frequency voltage converted from a DC voltage to each series resonant circuit of the induction heating coil and the capacitor; and a control circuit (50) which operates the plurality of the inverters with a same frequency and current synchronization, controls so that a phase difference becomes minimal at a specific inverter, which supplies the maximum power to the plurality of the induction heating coils, between the high frequency voltage generated therefrom, and a resonant current flowing the series resonant circuit, and set a DC power supply voltage Vdc applied to the plurality of the inverters so that the output voltages (Vinv) become greater than mutual induction voltages (Vm).
摘要:
A vehicle lamp has a light source having an edge extending linearly, a first reflector, and a second reflector. The vehicle lamp forms a light distribution pattern having cut-off lines at an upper end section thereof by sequentially reflecting light from the light source using the first and second reflectors. An edge of the light source is disposed so as to extend in the horizontal direction. A first reflecting surface of the first reflector is formed of a curved surface, and shaped such that, when an image of the light source formed on the first reflecting surface of the first reflector is viewed from respective points on a first reflecting surface of the second reflector, an edge portion of the image of the light source corresponding to the edge of the light source appears to be inclined with respect to the horizontal direction.
摘要:
The present invention relates to black magnetic iron oxide particles comprising magnetite as a main component, wherein when the black magnetic iron oxide particles are molded into a tablet shape, an electric resistance value of the tablet in an alternating current electric field is controlled to produce an impedance of not less than 2×106 Ωcm as measured in a characteristic frequency range thereof. The black magnetic iron oxide particles according to the present invention can provide a toner capable of exhibiting a good charging performance and a uniform charging property under the high-temperature and high-humidity conditions, so that when developing an electrostatic latent image therewith, it is possible to obtain toner images having a high resolution or definition, and further the use of heavy metal elements in the black magnetic iron oxide particles can be minimized.