Abstract: A programmable electronic calculator is disclosed for numerical evaluation of mathematical problems through application of one or more basic mathematical operators, properly grouped, to each input numerical operand of a mathematical problem according to the accepted rules of mathematical combinations. One may select any numerical operand, any of the four basic arithmetic operators, left parenthesis and right parenthesis to denote groupings, a storage register for receiving a numerical operand to be used in a computation or a numerical operand representing a result of a partial or final computation, or a storage register whose contents it is desired to print. Entry of each numerical operand and mathematical operator is accompanied by a printed record of that numerical operand and that mathematical operator so that the mathematical problem may be continually monitored as it is being entered. Depression of an equals key is followed by evaluation of previously designated operations and printing of the result.

Abstract: Two or more players move respective playing pieces in turn around a peripheral portion of a playing board as determined by spinning a spin dial. The peripheral portion of the playing board is divided into colored spaces including different musical symbols or terms used in musical composition. Each player uses the musical symbols or terms included in the spaces on which his or her playing piece lands to compose four measures of music in the major key of C. Play money is given to each player based on the popularity of his or her musical composition as determined by throwing numeric dice and for other reasons based on chance and skill. The winner is the player who earns the most play money while completing four measures of music. Different awards are given to the players based on the amount of play money they earn.

Abstract: A thin film capacitor and resistor is disclosed, each capacitor being formed by a structure including a metallic film on an insulating substrate, the metallic film having an oxidized surface formed by anodizing, an oxide layer on the oxidized surface of the metallic film, and a pair of spaced-apart conductor layers over the oxide layer, each resistor being formed by a resistive film on the substrate and a pair of spaced-apart conductor layers connecting with the ends of the resistive film. In the manufacture of the circuit, a predeposited substrate is produced that may be utilized by circuit designers in the subsequent fabrication of custom microcircuits. A heat treating technique is employed in trimming the resistors of the circuit.

Abstract: This invention relates to slave controlled forward, reverse or third point measurements of at least one of group delay and attenuation distortions of any of a number of transmission sections connected in a measuring loop between a local transmitter and a local receiver. A swept test carrier frequency signal and a fixed reference carrier frequency signal are amplitude modulated by the same modulating frequency and are applied to the transmission section under test in a periodically alternating sequence. After passing through the transmission section under test, the thus generated envelopes of both signals will have suffered a time delay as well as an amplitude degradation caused by the frequency dependent group delay and attenuation characteristics of the transmission section under test.

Abstract: A method and apparatus for obtaining an accurate measure of a transfer function of either a linear or the linear part of a nonlinear system. This is accomplished by utilizing an estimation technique using a "periodic-random" stimulus consisting of a random stimulus of a finite record length that is repeatedly applied to the system under test until the stimulus and the system response become essentially periodic. Once periodicity is achieved within the desired accuracy, a first estimate of the transfer function is derived from the measured spectrums of the stimulus and the system response. Another "periodic-random" stimulus, uncorrelated with prior records, is then generated and the above procedure is repeated to achieve an average value of the transfer function within the desired accuracy.

Abstract: Digital data in floating-point notation is arithmetically formatted for display in engineering notation with an exponent that is always a multiple of three and a mantissa having a decimal point. The formatting is performed under control of a routine stored in a read-only memory (ROM) of a data processing unit.

Abstract: An adaptable calculator is provided by employing five MOS/LSI circuits interconnected by a multiple line bus system.

Abstract: A method and an apparatus for measuring group delay characteristics of a transmission path is disclosed wherein a test signal is fed to the input of the transmission path and the test signal is amplitude modulated by a split frequency. The carrier frequency of the test signal is interchanged periodically between a measuring frequency and a standard reference frequency. The output measuring and reference signals of the transmission path are sensed by noting the positions in time of specified points of the envelope waveform that occur during the periods of the reference type signal and the measurement type signal. A digital pulse counter is provided for measuring a first time interval between a specified point during a period of a first type signal and a specified point during the subsequent period of the second type of signal, and for measuring a second time interval between the latter specified point and a specified point during the subsequent period of the first type of signal.

Abstract: An apparatus for automatically aligning a semiconductor wafer with a mask in the manufacture of integrated circuit devices is disclosed. The mask and wafer are each provided with alignment patterns, the alignment pattern on the wafer cooperating with the alignment pattern on the mask in a unique visual manner to signify alignment. A scanning mechanism is provided for automatically scanning the alignment pattern areas and producing output signals indicative of the relative positions of the alignment patterns on the wafer and mask. Logic circuitry is provided for operating in response to any misalignment represented by the scan output signals to compute formulae which are utilized to produce control signals for driving motor drive mechanisms to produce relative movement between the mask and wafer to bring them into alignment. Several separate alignment cycles are provided, if needed, for zeroing in on finalized alignment.

Abstract: A set of connecting elements and mounting elements are provided with split openings and clamping means arranged selected distances apart and at selected orientations so that these elements may be attached to rods to form a multidimensional frame for mounting laboratory and experimenting equipment. Adjustable mounting devices are provided with three point supports centrally arranged on the mounting elements adjacent to apertures therein so that optical elements and other such devices may be supported on the mounting elements and so that the axes of such devices may be tipped or displaced as required for a particular situation.

Abstract: A support arm for a wire bonding tool is fixedly mounted at one end on a first horizontal X-Y stage and is attached at the other end to a swing block by a pair of flexible reeds. The wire bonding tool is mounted on the swing block by another pair of flexible reeds. Both pairs of flexible reeds are arranged to permit vertical motion of the wire bonding tool along a Z-axis toward and away from a workpiece supported beneath the wire bonding tool on a second horizontal X-Y stage. A bell crank is coupled between the support arm and the swing block and is operated by a push rod to control the vertical Z-axis motion of the wire bonding tool. The push rod is coupled at one end to the bell crank and at the other end to a lower coupling member rotatably mounted on the first X-Y stage as part of an Oldham coupling mechanism. An upper coupling member of this Oldham coupling mechanism is rotatably mounted on a support bracket adjacent to the first X-Y stage.

Abstract: A wafer-bearing chuck, an annular reference plate, a copy lens system, and a mask-bearing holder are mounted on a floating unit so that the copy lens system produces an image of a pattern-bearing surface of the mask at a plane positioned between the annular reference plate and the wafer chuck and produces an image of a selected pattern-bearing region of a photosensitive-film-bearing surface of the wafer at the pattern-bearing surface of the mask. The wafer chuck is movably mounted for positioning the photosensitive-film-bearing surface of the wafer in abutment with the annular reference plate in a plane parallel to the image plane of the pattern-bearing surface of the mask and for subsequently positioning the selected pattern-bearing surface region of the wafer in the image plane of the pattern-bearing surface of the mask.

Abstract: A method and apparatus for manufacturing a coating mass for road constructions are disclosed wherein stone minerals of different grain size ranges are dosed, dried, heated, dusted off and supplemented with a binding agent and other flux materials. The stone minerals of the various grain size ranges are separated from each other and are predosed, dried and heated. This divides the stone minerals of each grain size range into a stone fraction and a respectively absorbed fine grain size material which is divided into a sand fraction and a self filler fraction by means of filtering, the sand fraction is thereafter added again to the stone fraction of the respective grain size range, and the self filler fractions of all grain size ranges are combined weighted. All of the heated stone and sand fractions are also weighted and combined and are mixed together with the combined and weighted self filler fraction, and the binding agent in order to provide the coating mass.