Abstract: A predetermined STA includes a station information collection unit collecting from the STA itself and other STAs station information used for selection of STAs performing simultaneous transmission and for control of the simultaneous transmission, and a simultaneous-transmission request unit knowing occurrence of a QoS data frame based on the station information and transmitting a request frame requesting the simultaneous transmission to an AP. The AP includes a station information collection unit; a simultaneous-transmission determination unit selecting a combination of the STAs performing the simultaneous transmission based on the station information by reception of the request frame; and a trigger transmission unit transmitting to each of the STAs performing the simultaneous transmission a trigger frame instructing to performs the simultaneous transmission and including information necessary for controlling the simultaneous transmission.

Abstract: There is provided an insulated electric wire formed by covering a rectangular conductor wire having a rectangular cross-sectional shape with an insulating film. The insulating film is formed of an inner layer covering a surface of the rectangular conductor wire, and an outer layer covering a surface of the inner layer. A thickness (t1) of a section of the inner layer, which covers one short side of two facing short sides of the same length of a rectangular cross section of the rectangular conductor wire, is greater than a thickness (t2) (including that t2=0) of a section of the inner layer which covers the other short side. An elastic modulus and/or a yield stress of the inner layer are less than an elastic modulus and/or a yield stress of the outer layer.

Abstract: There is provided an insulated electric wire formed by covering a rectangular conductor wire having a rectangular cross-sectional shape with an insulating film. The insulating film is formed of an inner layer covering a surface of the rectangular conductor wire, and an outer layer covering a surface of the inner layer. A thickness (t1) of a section of the inner layer, which covers one short side of two facing short sides of the same length of a rectangular cross section of the rectangular conductor wire, is greater than a thickness (t2) (including that t2=0) of a section of the inner layer which covers the other short side. An elastic modulus and/or a yield stress of the inner layer are less than an elastic modulus and/or a yield stress of the outer layer.

Abstract: A FSK demodulation circuit using counter techniques to distinguish between two transmitted frequencies, provides a delay preceding the change points of the demodulated signal to reduce signal distortion. Presettable counters reduce the number of data bits for processing, and a plurality of counters count an equal plurality of zero-cross intervals to reduce distortion. Registers and multiplexer further reduce circuit complexity.

Abstract: An electronic wristwatch with time and full calendar displays is programmed to uniquely display specially selected dates in the year using three manually operated input terminals. A terminal operation enables the memory to receive or erase special date data which is visible on the watch face at the time of selection. Month to month progression in the calendar display mode and day to day progression on the display in the write-in or erase mode is rapidly accomplished using two terminals.