Abstract: A prefabricated, reinforced construction panel consisting of a cast, concrete slab which is reinforced by rigid channels or studs. The studs are attached to the slab by thermally non-conductive connectors imbedded in the slab and joined to the reinforcing channels or studs to create an energy efficient light weight and durable panel. An insulation layer may be placed between the channels or studs and the concrete slab. The space between the reinforcing channels or studs may also be filled with insulating material.

Abstract: A first basic clock supplied from outside is delayed by a first delay circuit to generate a second basic clock which is fed to a frequency divider to generate a group of multi-phase clocks, each of which has a clock width equal to an integer number multiple of the clock width of the second basic clock and has a phase delay sequentially by a value equal to an integer number multiple of the clock period of the second basic clock, wherein the (n-1)th multi-phase clock and a nth multi-phase clock neighboring to each other in the phase sequence, and the first basic clock, are fed to a delay generating circuit as inputs, which comprises a second delay circuit for delaying the (n-1)th clock in the phase sequence, and a circuit arrangement for generating an output clock phase having a delay time relative to the nth clock, being equal to an smaller value of one half clock width of the first basic clock minus a delay time of the first delay circuit and a delay time of the second delay circuit.