Abstract: A high frequency surge tester includes a high frequency detection circuit which is used to detect microfracture defects in the insulation of wire on wound coils. The high frequency detection circuit includes a high-pass filter which isolates an errant voltage response so that it can be integrated and compared to threshold limits to determine the magnitude of defects. The surge tester also detects shorts between coils and shorts between turns of the same coil.

Abstract: A non-impact keyless chuck suitable for use with manual or powered drivers is disclosed. The chuck comprises a body which carries a rotatable split nut having a relatively fine thread and a plurality of slidable jaws, which may be identical, driven by the rotatable nut. An anti-friction bearing is disposed between the rotatable nut and a bearing thrust ring mounted on the body. A clutch or torque limiting mechanism is provided to limit the tightening torque to a predetermined value while the loosening torque may be limited or unlimited. The front sleeve, and rear sleeve, if used, may be formed from a structural plastic to reduce manufacturing costs. A relatively soft elastomeric grip boot may be placed on the front sleeve to improve the grip and temporarily restrain and center the tool during chuck tightening or loosening operations. A relatively soft elastomeric grip boot may also be placed on the rear sleeve, if used.

Abstract: In a device for forming coils for windings for dynamo-electric machines, the means for preventing rotation of the form on which the coil is wound comprise a member which supports the form and is mounted on the shaft of the device so as to be freely rotatable relative to the shaft and to the winding head about separate axes.

Abstract: A wristwatch radiotelephone having a plurality of substantially rigid members connected end to end in a series. The members are shaped and positioned to allow the members to be arranged in an arcuate array when the apparatus is to be worn on the wrist as a wristwatch, or in a more elongated, substantially straight array when the apparatus is to be used as a hand-held radiotelephone.

Abstract: Improved methods of programming floating gate memory devices such as MOS EPROMs having a gate, a floating gate, a read channel, and a write or programming channel. Potential is applied to the read channel (which is normally inactive during programming) in order to increase the voltage induced on the floating gate by the programming voltage applied to the gate. This makes it possible to reduce the programming voltage which must be applied to the gate, to reduce the time required to program the device, or to achieve some measure of both of these benefits.

Abstract: In order to enable an authorized user of a secured system to detect unauthorized use of that system, the system records identifying information about the user (e.g., a sample of the user's voice) each time the user uses the system. The system also plays back to the user the information recorded the last time that user used the system. If the user does not recognize the information played back or detects anything else wrong with that information, the user knows that someone else has gained access or at least attempted to gain access to the system by posing as him or her.

Abstract: A programmable, non-volatile transfer-device includes floating gate structures to control the transfer of signals from a set of inputs to a single output. Each floating gate structure includes two gates, logically coupled to each other in a master/slave mode, whereby the programming of the first gate controls the operation of the second gate. The floating gate structures are combined to implement a programmable multiplexer, without the use of static-RAM cells.

Abstract: Methods and apparatus for marking and identifying a commutator hook of an electric motor are provided. A preselected commutator hook is marked by deforming the hook while the armature is in a winding machine, with a known angular position. The marked hook is identified by apparatus which determines whether or not the hook has been deformed while in the winding machine, and thereby recognizing the hook.

Abstract: The axial end portions of the insulating members which are used to line the longitudinal channels formed between circumferentially adjacent, radially inwardly projecting poles in a stator (e.g., an electric motor stator) are protected from damage by the wire being wound by providing terminal boards at each axial end of the stator having portions which overhang the axial ends of the insulating members. Temporary wire grippers may also or alternatively be mounted on the axial ends of the stator (e.g., on the above-mentioned terminal boards) for temporarily holding the leads of the stator coils prior to permanent termination of those leads on permanent terminals on the terminal boards.

Abstract: A pallet system for supporting a workpiece (such as an electric motor stator or rotor) during processing of the workpiece includes a pallet member on which a workpiece holder can be removably placed. The workpiece holder may have multiple workpiece-engaging sites, each of which is adapted to hold a differently configured workpiece, and multiple pallet-engaging sites, each of which is associated with a respective one of the workpiece-engaging sites and any one of which can be used to engage the pallet so that the workpiece holder can hold a workpiece of the appropriate configuration at the associated workpiece-engaging site. Methods and apparatus for storing and manipulating the workpiece holders are also disclosed.

Abstract: Voice signal information in a telephone-type signal is detected by subjecting the signal to several tests such as a minimum energy test, an amplitude ratio test, and a sequencing test which ensures that the other tests have been satisfied for a sufficient length of time and/or sufficiently frequently over a predetermined time interval. A voice processing system such as a voice mail system may use the detection of voice as above to initiate the transmission of an announcement or message during an automatically placed telephone call.

Abstract: Images such as product images are identified as substantially similar to one or more reference images by finding pixels which have substantially the same value or values in all or substantially all of the reference images. Image erosion and/or dilation may be used in processing the reference image data to help identify pixels which can always be expected to have the same value in all acceptable images. The values associated with the corresponding pixels in a product image are combined and compared to an expected value, and the dot product between the product image and the discriminant function is equal to a predetermined value. The values associated with pixels which correspond to regions not similar in substantially all of the reference images are combined to produce a discriminant function.

Abstract: In order to simplify the programming structure and facilitate testing of that structure, the programmable elements in a cellular programmable logic integrated circuit (such as a field programmable gate array ("FPGA") or a programmable logic device ("PLD")) are connected in one or more series with switches interposed between the elements in the series. Initially, all of the switches in each series are enabled so that the ability of the series to correctly pass data can be tested. Thereafter, the switches are progressively disabled, starting from the switch which is most remote from the data source, so that data is stored in successive programmable elements, again starting with the programmable element which is most remote from the data source.

Abstract: A wristwatch radiotelephone having rigid members slidably joined so that the members may be spread apart from a compact unit to an elongated apparatus of appropriate length for use as a radiotelephone. The rigid members house a radiotelephone speaker, microphone, display, dialing buttons, and control buttons. A wristwatch strap joins the free ends of the rigid members so that the rigid members may be worn around a wrist when arranged in a compact unit.

Abstract: A wristwatch radiotelephone mechanism has three substantially rigid members connected to one another in a series by connection mechanisms connected between adjacent members in the series. The connection mechanisms allow the members to be arranged either in a C-shaped array when the apparatus is to be worn on the wrist as a wristwatch, or in a more elongated array when the apparatus is to be used as a hand-held radiotelephone.

Abstract: A wristwatch radiotelephone has a plurality of arcuate members connected to one another in a series by rotatable connection mechanisms connected between adjacent members in the series. The connection mechanisms allow the arcuate members to be rotated relative to one another so that they either all curve in the same direction (thereby providing a nearly closed C-shaped structure suitable for being worn on the wrist as a wristwatch), or so that alternate members curve in opposite directions (thereby converting the apparatus to a more elongated form suitable for use as a hand-held radiotelephone).

Abstract: A wristwatch radiotelephone having a plurality of telescopically arranged substantially rigid members and a flexible strap member joined to the proximal end of the endmost rigid member. The rigid members house a radiotelephone speaker, microphone, display, dialing buttons, and control buttons. When the rigid members are extended, the radiotelephone is accessible and the flexible member is contained within the rigid members. When the rigid members are collapsed, the flexible member may be extended around a wrist to attach the rigid members and radiotelephone to a wrist.

Abstract: A two-stage liquid ring gas pump has a rotatable liner supported on a liquid bearing in the first stage housing. The liquid for the liner bearing is withdrawn from the second stage liquid ring and is therefore at a pressure which is high enough to support the liner for rotation without the need for any other component such as a liquid pump to pressurize it for that purpose.

Abstract: A wristwatch radiotelephone has a plurality of substantially rigid segments connected to one another in a series by adjustable connection mechanisms connected between adjacent segments in the series. The connection mechanisms allow the segments to be arranged either in an annular array when the apparatus is to be worn on the wrist as a wristwatch, or in a more elongated array when the apparatus is to be used a hand-held radiotelephone.

Abstract: A chuck has a spring connection between the nut which rotates to advance or retract the jaws and the control ring or sleeve which the user rotates to operate the chuck. The spring normally transmits tightening or loosening rotation from the sleeve to the nut. When the jaws contact a tool, however, the spring allows the sleeve to continue to rotate even though the nut is stopped by the jaw-tool contact. Continued rotation of the sleeve relative to the nut causes a cam mechanism interposed between these two elements to force the non-rotating nut axially forward. This applies a final tool-gripping force to the jaws.