Abstract: A P.M. d.c. motor in which the permanent magnets thereof are provided as arcuate segments of predetermined length which rotate about a circular locus of core component defining pole assemblies. The paired permanent magnets are magnetized in a radial polar sense and interact in radial fashion with three core components of each pole assembly which include a centrally disposed core component extending within a channel between the magnet pairs and to adjacent inwardly and outwardly disposed core components also interacting with the permanent magnet radially disposed surfaces. With the arrangement, localized rotor balancing is achieved and, additionally, discrete or localized magnetic circuits are developed with respect to the association of each permanent magnet pair with a pole assembly.

Abstract: Apparatus and methods of verifying objects utilize an inherent randomly varying and detectable characteristic of a recordable magnetic region affixed to the object. Detectability of the randomly varying magnetic characteristic can be enhanced by recording a selected electrical signal thereon. Digital and analog signals may be used. Both saturation and nonsaturation forms of recording can be used. A verification apparatus senses the enhanced randomly varying magnetic characteristic and compares it to a prestored representative profile previously created. Correspondence between the prestored profile and the currently read characteristic indicates an authentic object. Other objects can be rejected.

Abstract: In a liquidproof battery-powered appliance, a battery insertion opening formed in the bottom of a battery accommodation casing accommodating a rechargeable battery and provided with parts including a motor and a printed circuit board is closed liquidtight by a cover member provided with a gas vent valve, and, after insertion of the battery accommodation casing into a body casing through a bottom opening of the body casing, the bottom opening is closed liquidtight by a flange formed at a peripheral edge of the battery insertion opening of the battery accommodation casing. By the above arrangement, the casings can be simply and reliably sealed liquidtight, and gas that may be generated in a very large amount from the battery in an unusual operating condition can be safely and reliably exhausted to the outside of the appliance.

Abstract: A trickle jumping device for charging liquid cell and jell cell storage batteries is provided by the present invention. In a presently preferred embodiment, the device comprises a conductor to a directional slip receptacle, a slip plug connected to a smaller amp hour battery using a prescribed terminal connector, and a current limiting device such as a wire wound resistor to provide a close tolerance means of controlling current with very little variance because of heat. Preferably, the trickle jumping device polarity is determined by the use of a diode, so that the polarity of a smaller charge battery is maintained if the jumper is connected incorrectly.

Abstract: An assembly for accessing information recording tracks of an information storage medium comprises a transducer for recording and/or reproducing information; a transducer support carriage for advancing the transducer; a driving force generator for producing a driving force to shift the carriage; and motion converting means for converting an input motion from the driving force generating means to an output motion to be transmitted to the carriage. The motion converting means includes a cam with a spiraling peripheral surface having a plurality of fine step pitch shifting regions for precise tracking control and at least one rough pitch shifting region for shifting the transducer quickly from track to track on the recording medium.

Abstract: A disc reproducing apparatus of the type having information prerecorded in the form of pits or other discrete indicia on tracks on a rotating record wherein the track access time of the information playback transducer can be increased by simultaneously increasing the rotational speed of the record from the speed normally employed during playback of the recorded information and selectively filtering out the pit component at a lower time constant when the record is rotated at such higher speed.

Abstract: A digital display instrument with an automatic power-off device built-in which comprises a control circuit, a timing circuit and a display detection circuit. The power of the instrument is controlled by a push-button switch so that when the push-button switch is pressed down and released immediately, the power is turned on. If the push-button switch is pressed down and held for about 1.5 seconds, however, the power is turned off. The power can be turned off automatically by detecting if the instrument has not been used for a pre-set period of time. After the power is turned on, the display detection circuit will monitor the reading on the display continuously to determine whether the instrument is in use or not. If the detection shows the instrument is still in use, the timer will be reset to maintain the power on for another period of time. However, if a condition of not being in use is detected within the preset period of time, the power will be turned off automatically.

Abstract: Data cards are formed by writing a succession of latent images on a first web of photosensitive film, developing the film and then joining the film with a web of high resolution laser optical recording tape. The webs may be joined in either back-to-back or front-to-back relationship. In the first case there is an eye readable image on one side and formatted optical recording tape on the opposite side. In the second case an eye readable image is optionally adjacent optical recording tape, but on different layers, with both readable from the same side through a transparent substrate or base. The composite web is cut transversely to its lengthwise dimension into a plurality of wallet size members. Bar code is recorded together with the latent image so that in checking cards for quality control purposes, defective cards may be correlated with particular images in order that a defective card be recreated.

Abstract: This invention relates to a binary encoding method for reading the data from an optical record comprising steps of photo-electrically reading the optically recorded data which are encoded into binary codes with an FM encoding method and of comparing thus obtained video signals with a threshold to encode the same into binary codes and the device therefor.This invention is featured by the structure that the mark rate of binary encoded signals are detected to obtain the deviation thereof from a preset mark rate and the reading sensitivity of a reading means is adjusted based on said deviation in a manner to make the mark rate of the binary encoded signals identical to the preset mark rate.This invention is further characterized by the structure that video signals are binary encoded by plural groups of binary encoding means on the basis of different thresholds and the binary encoded signals of the group having the optimal mark rate are selected.

Abstract: In an information-bearing disk having, along concentric record tracks, pre-written equally spaced tracking pads which may or may not be aligned radially from one track to another, circuitry serves for improving the response time of a disk drive mechanism during a track-jump operation, i.e. when a read/write transducer head moves radially from one record track to any other track. The circuitry includes a phase-locked loop (PLL), coupled to the transducer head and responsive to a pulsed signal corresponding to the frequency at which the tracking pads sweep past the head, and thereby the actual speed of the disk, for producing an adjustable clock signal which controls the rate at which user data is transferred to or from track segments between adjacent tracking pads.

Abstract: The current converter or transformer component of a high voltage measurement transformer comprises a primary lead or conductor which is surrounded by secondary windings or optical conducting elements. The primary and secondary components of the current converter or transformer component are housed in a casing having an integrally formed entry duct for the secondary leads. The secondary components of the current converter or transformer component are surrounded by plastic or synthetic insulation material. This insulation material or insulation also surrounds a channel for the secondary leads extending completely through the entry duct. The primary lead or conductor is provided with connecting flanges at both ends for mechanically or electrically connecting the high voltage measurement transformer to a high voltage or high power circuit breaker or similar device.

Abstract: A speech unit for producing preselected words or phrases based on the orientation of a toy doll or figure. A gravity sensing means produces an output corresponding to the orientation of the sensing means with respect to gravity. The output of the sensing means is coupled to a speech synthesizer which produces an output based on transitions from one orientation of the sensing means to a second orientation. A timing circuit coupled to the sensing means establishes a time period during which the sensing means must maintain its orientation for an output to be realized. The timing means also is used to shut off power to the speech synthesizer and speaker means to conserve power of the circuit. In an alternate embodiment, the absolute position of the sensing means is used to select a speech output.

Abstract: A controlled single-ended down converter comprises a transformer of d.c. separation of the input circuit and the output circuit, a switching element controlled in pulse width in the input circuit and a rectifier diode as well as a fly-wheel diode in the output circuit. During the conducting phase of the switching element, the transformer takes up magnetization energy. This energy is demagnetized through the barrier layer capacitance of the rectifier diode during the cut-off phase.

Abstract: An apparatus for and method of indicating when the battery in a motor vehicle is discharging is disclosed in which the battery voltage during vehicle operation is monitored and compared to a stored value representing the open-circuit voltage of the battery measured prior to the vehicle engine being cranked for starting. An indication that the battery is discharging is provided only after a discharging condition, i.e., the battery voltage is less than the stored value, is detected at each of a predetermined member of consecutive timed intervals.

Abstract: A constant voltage inductive power coupling for magnetically transferring electrical power from a power source through an air gap to a load comprising a first electromagnetic inductor connected to a power source to generate a shaped alternating magnetic field, a said inductor with a saturable core separated by an air gap from the first inductor and magnetically coupled thereto to receive the shaped magnetic field, the core being responsive to the field to enter a state of magnetic saturation. A coil is electromagnetically coupled to the saturable core and has output leads connected to the load. A capacitor is in electrical communication with the coil to form a tuned circuit that is below resonance at the coupling operating frequency. The magnetic field induced by the first inductor to the second inductor causes voltage in the coil, whose magnitude is determined by the amount of magnetic flux in the core.

Abstract: The converter described comprises a generator (2) having a rotor (3) driven by a spring (1) via a gear-train (4), and means (11) for electrically braking the rotor (3). In one form of embodiment of the converter, the mean rotational speed of the rotor (3) is adjusted to a predetermined set speed by a control circuit (12) which periodically cuts out the braking means (11) in response to a reference signal having a period equal to the ratio between a predetermined rotational angle of the rotor (3) and the set speed. The control circuit (12) cuts the braking means (11) in again after a length of time which varies in response to a signal generated by a circuit (26, 27) for comparing the real angular position of the rotor (3) at the beginning of each period of the refernce signal with the angular position it should be in when running at the set speed.The converter may for instance be used in a timepiece having hands (9) that are also driven by the spring (1).

Abstract: A voice actuated control system for a motor vehicle. A microphone mounted to the vehicle senses user commands as well as other noise in the passenger compartment. Analog electrical signals from the microphone are converted into digital form and compared by a high speed microprocessor with a user profile. A correspondence between the profile and the sensed input causes a control function such as raising or lowering a window to be performed. A speech synthesizer in the system prompts the user in the event a command in a command sequence is inappropriate.

Abstract: A power supply system including a DC-to-AC inverter stage and a voltage step-up transformer is intended to have the output voltage settlement with a minimal delay and suppressed bounce at the start-up of power supply to the load, and also intended to reduce the load voltage bounce caused by the leakage inductance and stray capacitance of a high tension step-up transformer.

Abstract: An inverter arm is made up of two transistors electrically connected in series, each transistor having its own independent control unit. The control units are supplied by a common power supply unit ensuring galvanic insulation by means of a transformer with two distinct secondary windings. This galvanic insulation allows a potential difference of several hundred volts between the transistors and their control circuit.

Abstract: A power supply is disclosed which comprises a ferroresonant circuit, the ferroresonant circuit including a transformer with a core of magnetic material, a primary winding, a secondary winding, and reactive means coupled with at least one of the windings. The transformer also has at least one bias winding. An alternating voltage is applied to the ferroresonant circuit, the alternating voltage having a frequency that is approximately equal to a resonant frequency of the ferroresonant circuit. An output circuit is coupled to the secondary winding. A signal from the output circuit is applied as a feedback signal to the bias winding to control DC flux bias of the core. In an illustrated embodiment, the means for applying an alternating voltage signal to the ferroresonant circuit includes an oscillator for generating alternating voltage control signals, and a switching circuit responsive to an input power source for generating the alternating voltage signals under control of the oscillator.