Abstract: A directivity control of an adaptive antenna is performed for an antenna of a base station when a signal is received in the antenna of the base station, and the directivity control of the adaptive antenna is performed for an antenna of a mobile station when a signal is received in the antenna of the mobile station. Therefore, even though an antenna of a second mobile station functions as an interference wave source, the reception of an interference wave from the interference wave source can be prevented in both the antenna of the base station and the antenna of the mobile station, and a communication quality in both the base station and the mobile station can be maintained in the communication between the base station and the mobile station.

Abstract: A second mounting section housing a plurality of substrates abnormally processed in a process section and a plurality of substrates processed previous to ordinary processing therein is provided in addition to a first mounting section housing a plurality of substrates before and after processing. Abnormally processed substrates or previously processed substrates are collected in the second mounting section. Thus, the abnormally processed substrates can be exactly taken out and subjected to inspection and the like, and the substrates processed previous to ordinary processing can be exactly taken out and subjected to inspection and the like.

Abstract: The amount of calculations involved in the weight calculation is reduced in an adaptive array antenna CDMA receiver. A common correlation matrix is calculated by using the reception signals. Preferably, the inverse matrix of the common correlation matrix is also calculated. The common correlation matrix or the inverse matrix is used in common to the weight calculations for all the users or mobile stations. An inventive CDMA receiver includes a portion provided for each user. Each of the portions passes the reception signals through the respective matched filters to obtain respective despread signals; calculates a weight vector by using the common correlation matrix or the inverse matrix thereof; weighs the respective despread signals with the weight vector to obtain weighed despread signals; and combines the weighed despread signals into the transmission signal associated with each user.

Abstract: A solar battery indicator apparatus utilizing a capacitor for accumulating electrical power generated by the solar battery and light emitting diodes for emitting light on the basis of the electrical power supplied from the capacitor. An indicator body makes a prescribed indication on its front surface through the use of optical fibers. Several bundles of optical fibers are utilized with each bundle being associated with a plurality of optical fibers having one of their ends disposed to face an associated one of the light emitting diodes and the other end of each of the bundles of fibers being associated with a particular indicator. The configuration of optical fiber bundles utilize a control portion for controlling light emitting states of respective individual light emitting diodes.

Abstract: In a heat exchanger comprising a number of multilayered fins, and a refrigerant pipe arranged in the meandering form in the fins, and an air conditioner having the heat exchanger, each of the fins has a corrugated portion formed in an air-flow direction thereon, which has at least two wavelike portions for producing a turbulent flow of air having such strength that a temperature boundary layer of the air is broken, but resistance against to the air flow is not excessively high. Each wavelike portion may be designed to have a triangular section or a trapezoidal section, and a flat portion may be disposed between the wavelike portions.

Abstract: An air-conditioning system including an air conditioner incorporating a heat exchanger and a fan therein, and duct assembly connecting to the air conditioner for supplying conditioned air to a specific room equipped with the air conditioner and to another room, the duct assembly comprising an auxiliary duct removably attached to a front cover of the air conditioner and a main duct separably connected to the auxiliary duct to extend from the specific room to said another room and having air outlet portions for supplying air to the respective rooms, the auxiliary duct having an air channel for guiding the air discharged from the air outlet of the front cover into the main duct.