Abstract: A power supply device which boosts and stabilizes the voltage of a dc power supply includes an oscillator circuit connected to the dc power supply, a voltage multiplying rectifier circuit which rectifies the output of the oscillator circuit and boosts the voltage and an oscillator control circuit which monitors the boosted voltage and stabilizes the boosted voltage by on-off control of the oscillator circuit. The voltage multiplying rectifier circuit includes a voltage storage element, such as a capacitor connected in parallel with the load driven by the power-supply device. When the output voltage of the device exceeds a predetermined reference voltage, the oscillator control circuit turns the oscillator circuit off. The voltage storage element is thus no longer supplied with electric energy and begins to discharge through the load thereby lowering the output voltage of the device.

Abstract: A flyback transformer which has a coil bobbin provided with a low voltage coil and high voltage coil and a plurality of terminal pins to which the lead wires of these coils are to be connected and attached to the leg of the core, a hollow cylindrical housing which houses the coil bobbin and a housing cap provided with a through hole into which the leg of a core is inserted and contains a rectifier circuit which rectifies high voltage generated by the high voltage coil, wherein the terminal pins are projected from one end of the housing and the leg of the core is inserted into it and the housing cap is mounted on the other end of the housing and a space formed between the housing and the housing cap is filled with an insulating resin.

Abstract: A data processor input/output controller which is particularly useful as a microcontroller for the transfer of data between a host processor and one or more peripheral input/output devices in a digital data processing system. This input/output (I/O) controller is a subchannel controller for offloading a goodly portion of the subchannel control function from the host processor. This I/O controller includes a microprocessor for assisting and supervising the controller internal operations. Also included in the controller is an automatic high-speed data bypass mechanism whereby data may be transferred from the host processor to the I/O device or vice versa without having to pass through the microprocessor and without requiring any intervention on the part of the microprocessor during such automatic transfer.

Abstract: A method for controlling usage of a programmable computing machine which operates in accordance with uncoded or published machine language operation codes including uniquely encoding the uncoded operation codes of instructions of a program to be used on the computing machine as a function of location of the instructions in memory and as a function of machine state, and adding to the machine a decoder that decodes only the uniquely encoded operation codes.

Abstract: An electronic control unit for regulating the air/fuel ratio of an internal combustion engine is disclosed. The electronic control unit has an open loop calibration for regulating air/fuel ratio that is corrected with a closed loop correction signal developed by an integral controller. The open loop calibration is a speed-density based schedule which is combined with corrections for special conditions to account for the operating parameters of the engine at any instant. Included in these special condition corrections are provision for start and warm-up features. The start feature includes an enrichment pulse generator whose pulses have a duration dependent upon the engine operating temperature and speed which are inhibited while the engine is above a predetermined RPM. The warm-up feature includes a time and temperature dependent enrichment which is linearly multiplied by an engine load factor.

Abstract: An apparatus for automatically scaling an X-Y recorder for use with a thermal analyser wherein temperature range span during an experiment may be plotted exactly scaled to an abscissa such that the left side of the graphical representation corresponds exactly to the minimum temperature during the experiment and the right side of the representation corresponds exactly to the maximum temperature achieved.

Abstract: A system for use in thermal analysis for correcting discrepancies between oven temperature and desired sample temperature including means for automatically calibrating the system at several selected points in the analytical temperature scale wherein actual sample temperature is forced to agree exactly with desired sample temperature by appropriately changing oven temperature and wherein the calibrated sample temperature and the difference between oven temperature and sample temperature at the several points are used to correct for discrepancies throughout the intervening analytical temperature scale.

Abstract: A leaky digital integrator comprising an accumulator circuit including an adder having first and second adder input terminals and an adder output terminal, and a shift register coupling the adder output terminal back to the second adder input terminal and to an integrator output terminal; a ternary signal detection circuit coupled to the integrator output terminal and operative to develop one of three decay factor signals depending upon whether the integrator output signal level is above, equal to or below a predetermined reference level; and switching apparatus having a first switched terminal which is periodically coupled at a first rate to the first adder input terminal to input update data signals to the accumulator circuit and a second switched terminal which is periodically coupled at a second rate to the first adder input terminal to input decay data signals to the accumulator circuit such that the circuit as a whole performs according to the equationa.sub.i (t)=Da.sub.i (t-1)+.DELTA.a.sub.

Abstract: A low cost postage applicator includes postage printing wheels which can be manually set by thumbwheels accessible through an access opening in a housing. Encoders provide electrical signals representative of the position of each printing wheel. The housing is depressed toward a letter or package to be imprinted. During an initial part of the depression stroke, an inking roller is drawn across the printing wheel face, the access opening is misaligned with the thumbwheels to prevent further setting changes and a contact switch is closed to enable a microcomputer to read and compare the printing wheel settings with the contents of an electronic descending register. If adequate postage is available and if a letter sensing switch indicates that a letter or package is in place, the microcomputer releases a mechanical interlock to allow the housing to be depressed into a printing position in which the printing wheels contact the letter or package.

Abstract: In a microprogrammed data processing system the throughput of the system is increased during the processing of decimal numeric instructions by apparatus which indicates to the microprogram the characteristics of the operand being processed. This enables the proper microprogram subroutine; that is, if the operand is a floating point or a scaled number, has 4-bit decimal digits or 9-bit decimal digits, has an overpunched leading sign or trailing sign, has an adjusted length less than or equal to 63 decimal digits, whether the operand is a long or short operand, and whether the resulting operand is equal to zero or has an overflow.

Abstract: A passive annihilator comprising an annihilator element in the form of a spiral located at the end of a path of propagate elements whereby bubbles, entering the spiral element in response to the rotating in-plane magnetic field, will follow the spiral path to its center, and any subsequent bubbles, in a stream of bubbles, entering the spiral will help hold the prior bubble captive in the spiral. The final bubble in a bubble stream under high magnetic bias conditions will be annihilated near the spiral center while the final bubble under low magnetic bias conditions will circulate in response to the in-plane rotating field indefinitely in the spiral, but is not free to escape, and will be annihilated by the entry of new bubbles from a subsequent bubble stream.

Abstract: In a mounting plane for placing a plurality of magnetic bubble chips in coils for generating a rotating magnetic field which consist of an inner coil and an outer coil, a magnetic bubble chip-mounting plane characterized by being made of an electrically conductive plane whose electric resistivity is 10.sup.-3 to 10.sup.+4 .OMEGA..cm and by being provided with a cut-away part in that region of the plane which is surrounded by only the inner coil.

Abstract: A method of and an apparatus for magneto-resistively detecting information in a cross-tie memory system is disclosed. The detector includes a first conductive element, which is the terminating portion of an electrically-conducting wide-narrow edged propagating drive line, and second and third conductive elements that are serially aligned along a magnetic, serrated-edged data track, which three conductive elements form two gaps therebetween. The two gaps are oriented along the data track at respective narrow portions, a first narrow portion which may support a cross-tie but which second narrow portion will not support a cross-tie. A differential sense amplifier is coupled across the two gaps using the second narrow portion as a reference segment to differentially detect the presence vel non of a cross-tie in the first narrow portion.

Abstract: Replicate/swap gating circuitry comprising separate gates oriented to be responsive to different phases of an in-plane magnetic field for transferring data to and from an adjacent storage loop in a bubble memory, said gate being formed of magnetic domain propagate elements arranged in propagation paths to perform several independently operable gating functions by a single current conductor on application of current pulses at selected phases of the rotating in-plane magnetic field.

Abstract: In a magnetic bubble (domain) memory chip, transfer gating circuits of propagate elements oriented to be responsive to different phases of in-plane rotating magnetic field are operated by a single conductor which is subjected to current pulses during a specific phase of the rotating field cycle to transfer bubbles onto different bubble paths. The transfer gates perform their gating function only when a control current pulse occurs during a specific phase of the rotating field cycle and are unresponsive to the current pulses at other phase times on the same conductor which actuate other gates.

Abstract: The disclosed is an electronic timepiece which has storage circuits for respectively storing data regarding a variety of times such as an alarm time for different operating modes, stop watch, timer, etc., a data processing circuit commonly provided for all the storage circuits for executing various time processes, and a control circuit for controlling a mutual transfer of the data between the respective storage circuits and the data processing circuit to selectively process the various times. Accordingly, this timepiece can process a large number of times without increasing the number of the time processing circuits.

Abstract: An electronic timepiece equipped with an alarm system whereby an external control member is actuated a desired number of times or for a desired time duration causing a count to be set into a first counter. Subsequently, when an alarm is generated, an identical count value must be set into a second counter by actuating an external control member for the same number of times or for an appropriate time duration in order to shut off the alarm. Possibility of the user shutting off the alarm signal and then falling asleep again is thus greatly reduced. A snooze switch control function can also be easily incorporated.

Abstract: Apparatus is provided for determining the conformity of an energy pulse generated by a weight drop seismic source to a defined energy pulse characteristic in order that reflections associated with a non-conforming energy pulse can be rejected. The apparatus operates to compare the signature of a weight drop with a signature standard. Incoming seismic data is rejected and not recorded if the difference between the incoming signature pulse shape and the standard signature pulse shape is too great. The pulse shape of the incoming signature is analyzed by comparing a sample of the incoming signature amplitude to upper and lower rejection limits derived from a time correlated amplitude sample of the standard signature. The upper and lower rejection limits against which an incoming signature sample is compared are proportional to the amplitude of the time correlated standard signature sample.

Abstract: A system for demodulating a coherent, phase-shift-keyed signal that is modulated by a set of orthogonal or biorthogonal code words. The system does not require a local phase reference that is phase locked with the received signal. The system is made up of two demodulators and a microprocessor. One demodulator utilizes a local sinusoidal signal in the demodulation process, and the second uses a local cosinusoidal signal in the demodulation process. Because the phases of the local signals do not change significantly with respect to the unmodulated phase of the received signal during the period of time occupied by a single code word, the output of one or the other of the two demodulators resembles the code word which was transmitted. The set or orthogonal code words is compared with the outputs of the two demodulators to determine which code word was transmitted, and the data which corresponds to that code word is output by the system.

Abstract: A digital system for demodulating coherent phase shift keyed signals. Maximum likelihood estimates of the unmodulated phase and rate of change of the unmodulated phase of the received signal relative to a local oscillator signal are used to improve the demodulation process. The maximum likelihood estimates are obtained from measurements of the phase of the received signal relative to the local oscillator signal over a predetermined set of keying intervals. The digital demodulation process permits rapid "lock-on" at low signal-to-noise ratios.

Abstract: A circuit for providing an indication of the signal/noise ratio of a single frequency signal as received by a receiver has first and second signal paths extending from its input to a comparator contained in the circuit. The first signal path includes a narrow band-pass filter, while the second signal path includes a notch filter. Means are provided in each signal path, for integrating the output of the respective filter. The comparator compares the outputs of the integrating means and outputs when the output of the first signal path integrating means is equal to or greater than the output of the second signal path integrating means. The time which elapses between the receipt of the signal at the input and the beginning of the comparator's output provides an indication of the signal/noise ratio. Such circuits can be used in selecting receivers in multi-receiver arrangements.