Abstract: A vibration control apparatus comprises a vibration member having a surface with a resonance point. A piezoelectric element is adhered to the surface of the vibration member. A drive apparatus is connected to the piezoelectric element via an impedance element for exciting the piezoelectric element with an A.C. signal. A feedback circuit is connected between the piezoelectric element and the drive apparatus. The feedback circuit picks out the components of a voltage on the piezoelectric element caused by a strain of the piezoelectric element and feeds this voltage back to control the drive apparatus. The inventive vibration control apparatus may be incorporated in a gyro to simplify the construction of the gyro.

Abstract: The characterizing features of the invention are that a guide tube is provided which is disposed at least partially outside the evaporator plate and partially in the suction tube, is directly or indirectly retained on the evaporator and has a somewhat larger internal diameter than the external diameter of the throttle/capillary tube and a substantially smaller external diameter than that of the internal diameter of the suction tube; the throttle/capillary tube is inserted in the guide tube from outside and the compressor side end zone of the internal generated surface of the guide tube is connected pressure-tight inside a first longitudinal portion of the coolant supply line disposed in the guide tube to the associated zone of the external generated surface of the throttle/capillary tube and terminates in the guide tube; and the guide tube forms a second longitudinal portion of the coolant supply line having a cross-section widened in comparison with the capillary flow cross-section, and the inside space of t

Abstract: A raster video display system utilizes memory capacity more efficiently than conventional raster display systems and is independent of the specific resolution of the screen which is utilized in the system. The raster display system comprises a VRAM with split transfer capability and a unique address generator which can determine when pixels from a particular row of the screen display start on one row of the VRAM and extend over to the next row of the VRAM.

Abstract: A video display system includes a frame buffer comprising five sets of one or more VRAMs. An address generator for generating address locations in the frame buffer generates chip select, row select and column select address signals. Because the frame buffer comprises five sets of VRAMs, the generation of the address signals requires divide-by-five operations to be carried out. Accordingly, the address generator includes a unique divide-by-five circuit wherein the division is carried out by a sequence of additions and multiplications. In comparison to conventional systems, the video system of the present invention makes more efficient use of memory capacity in the frame buffer.

Abstract: The invention relates to a device for cooling a laminar material, more particularly a metal strip 2, by liquid nozzles 11a, 11b, 12a, 12b disposed on both sides. The liquid nozzles 11a, 11b, 12a, 12b take the form of full-jet nozzles and so act upon the surface of the material 2 to be cooled by rebounding jets that zones of shooting flow SS are formed around the point of impingement of the individual rebounding jets.

Abstract: An extendable FIFO is disclosed. The FIFO utilizes a quasi-simultaneous clock detector for detecting the activation of READ and WRITE signals and for generating first and second delayed signals in response thereto and a MASK signal when the READ and WRITE signals are substantially simultaneously activated. Additionally, the FIFO includes a plurality of pointer circuits for receiving the first and second delayed signals and the MASK signal and for generating a plurality of clocks and load signals in response thereto. The FIFO further includes a matrix of flip-flops organized into columns which are sequentially connected for receiving the clocks and load signals which control which data column is written into and the sequential transfer of data between columns.

Abstract: A vibrator support structure for a vibrator having a vibrating body comprises a support stand, a first damper material disposed on top of the support stand, and a first substrate disposed on top of the first damper material. In addition, the vibrator support structure includes a second damper material disposed on top of only a portion of the first substrate and a second substrate disposed on top of the second damper material. Two support filaments are also provided for supporting the vibrating body, one of which is mounted on the exposed portion of the first substrate, while the other of which is mounted on the second substrate.

Abstract: A circuit and method for iteratively estimating Fourier coefficients of one or more Fourier components of a measuring signal utilizes a filter to determine the Fourier coefficients for sampling time k-1. The coefficients are utilized to obtain an estimate of the measuring signal at sampling time k. A subtractor circuit subtracts an actual sample of the measuring signal at sampling time k from the estimate of the measuring signal at sampling time k to obtain a difference signal. The difference signal is inputted back into the filter to determine an estimate of the Fourier coefficients at sampling time k.