Abstract: A planar antenna comprising a planarly configured inner radiation element that is surrounded by an outer radiation element, wherein the inner and outer radiation elements each have a feed point. A continuous or discontinuous modification of the distance, which is equal in relation to a symmetrical axis of the inner radiation element, exists between the inner radiation element and the outer radiation element. The distance between the outer and the inner radiation element is different in the area of the two feed points from that in the area facing away from the feed points.

Abstract: A planar antenna comprising a planarly configured inner radiation element that is surrounded by an outer radiation element, wherein the inner and outer radiation elements each have a feed point. A continuous or discontinuous modification of the distance, which is equal in relation to a symmetrical axis of the inner radiation element, exists between the inner radiation element and the outer radiation element. The distance between the outer and the inner radiation element is different in the area of the two feed points from that in the area facing away from the feed points.

Abstract: The invention relates to a device for identifying an object (1) having a surface that is at least partially metal and which comprises an identification tag (2) and an antenna (3) that is fixed at least indirectly to the metal surface. According to the invention, a surface electric contact or a tight capacitive coupling is arranged between the metal surface and the antenna (3).

Abstract: The apparatus includes a suitable enclosure or case, housing a tray or holder to receive and hold a high-memory card which may be formed of a recordable medium, or alternatively has inserted therein or placed thereon a magnetic or optical recordable medium on which data is recorded in the form of linear magnetic or optical recorded tracks. The card is held in place by card positioning pins and positioning springs. A linear head array can be caused to scan the card by a head array scanning motor driving a head array transportation wire. To precisely position the card with reference to the track positions or to move the card from one track of a track group to the next, the card tray may be moved orthogonaly stepped at right angles to the direction of travel of the linear head array assembly by a drive motor operating a lead screw and card tray leadscrew interface.

Abstract: A magnetic tape cartridge incorporating a drive belt characterized by a pattern of recesses in the belt surface in contact with the magnetic tape which are used to provide traps for tape contaminants. Different types of patterns are used to eliminate tension variations which would otherwise occur as a consequence of tape contaminants during the projected life of the cartridge.

Abstract: A magnetic tape cartridge incorporating a drive belt characterized by a smooth (e.g., average surface roughness less than 7 microinches, zero to peak, as measured by a Talysurf 10 surface analyzer set for a 0.003 cut off length) nontextured drive surface and a ratio of static to dynamic coefficients of friction between the drive surface and the magnetic tape surface, of less than 2. The drive belt is preferably integrally formed of a material which inherently yields the aforementioned drive surface characteristics without requiring that the naturally formed belt surface be specially treated.

Abstract: An elastomer drive belt (100), for a bidirectional two reel tape cartridge (20), having a low static to dynamic coefficient of friction ratio with the magnetic tape (38) is provided. The drive belt minimizes slip point (96) movement between the belt and the magnetic tape on the take up reel. This results in a minimization of tape tension variations at the transducer head (42).

Abstract: A bidirectional tape cartridge incorporating first and second tensioning elements respectively located adjacent first and second reels on opposite sides of a transducer head and configured to act unidirectionally so that only the upstream element provides a significant drag force on the tape. Each tensioning element having a surface defining a tape path and including a first portion located closer to the corresponding reel and a second portion located closer to a corresponding tape guide, the first portion having a smaller radius of curvature than the second portion.

Abstract: In a tape cartridge (20), a snap pin fastener (100) is provided for securing the cover (88) and base plate (90) while permitting therebetween differential expansion in a longitudinal direction (108) of the base plate. One dimension (112) of the snap pin is chosen small enough to flex under a force induced by differential thermal expansion of the cover and base plate. Thus the base plate remains flat, insuring registration between the tape and a transducer head. The second dimension (114) is chosen great enough to provide, with the first dimension, a cross section (115) sufficient to resist operational forces placed on the cover and base.

Abstract: A clutch plate for use in the friction clutches of automotive vehicles has a rotary hub with two spaced-apart coaxial annular cheeks which flank the inner portion of an annular carrier for friction linings. The carrier can turn, within limits, relative to the cheeks against the opposition of coil springs which are inserted into registering windows provided therefor in the cheeks and in the carrier. A first friction generating unit operates continuously between the hub and the carrier, and such friction generating unit has two friction pads disposed at the opposite sides of the carrier immediately adjacent or close to the periphery of the hub, and a ring-shaped spring which reacts against one of the cheeks to urge one of the pads against the carrier which is movable axially to urge the other pad against the other cheek. A second friction generating unit surrounds the first unit and is designed to generate friction during certain stages of angular movement of the carrier relative to the cheeks or vice versa.

Abstract: A tape transport of the belt driven type, wherein an endless belt engages a drive pulley and peripheral portions of tape packs on a supply reel and a take-up reel. The transport is mounted on a support frame, which is in turn mounted for sliding movement in a housing. A drive belt roller is mechanically coupled to movement of the support frame, and withdrawal of the support frame from the housing results in movement of the drive belt roller and disengagement of the belt from the supply tape pack, to facilitate tape loading and unloading. Drive belt pick-off posts affixed to the housing retain a portion of the drive belt in the housing, to maintain belt tension during tape loading and unloading, and to ensure disengagement from the supply tape pack.

Abstract: Method of and apparatus for operating a motor vehicle wherein a flywheel mass for eliminating or minimizing nonuniformity of rotational motion is engageable with and disengageable from a crankshaft for an internal-combustion engine which includes, in an operating condition when the motor vehicle is in motion but the engine does not drive the motor vehicle, including deceleration, braking and coasting, interrupting a driving connection between driving wheels of the motor vehicle and the engine while maintaining rotation of the engine at a nominal speed with the flywheel mass engaged therewith whereas, in a condition when the motor vehicle is briefly stopped, as at a traffic light, interrupting the driving connection between the driving wheels of the motor vehicle and the engine but disengaging the flywheel mass from the engine so that the flywheel mass continues to rotate and shutting down the engine and, for restarting the engine, reengaging the flywheel mass with the engine while maintaining the interruption

Abstract: Method and apparatus for compensating for variations in the time base of a video signal reproduced in a longitudinal video tape recording system. The signal is passed through a charge-coupled device clocked by a variable rate clock signal to correct for the timing variations. Thereafter, a clamping circuit removes variable voltage offsets introduced by the charge-coupled device, to prevent objectionable horizontal streaking from occurring in the resulting video picture. A clipping circuit removes random noise from the time base pulses of the video signal prior to its passing through the charge-coupled device, whereby the clamping circuit is prevented from creating an objectionable flicker in the resulting video picture.

Abstract: An erase head for erasing single tracks on multi-track magnetic recording tapes by means of a constant magnetic field applied in a direction perpendicular to the direction of tape travel, to avoid any asymmetrical residual magnetization with respect to the direction of a magnetizing field used for recording. A configuration of two pole pieces and two corresponding shields, spaced out from the pole pieces and generally coplanar with the end faces thereof, ensures that the magnetic field strength is relatively uniform in a region between the shields, and falls to a relatively low value outside this region.

Abstract: The invention comprises a circuit arrangement for a sound-reproducing apparatus, particularly a video tape recorder having an audio channel, wherein upon the occurence of a sound signal drop-out interval within a continuous audio signal, for example within the track-switching period in multi-track sound recordings, an audio frequency signal is inserted in the drop-out interval so that the interval is rendered unnoticeable to the listener. The apparatus can be advantageously employed for recorders in which sound signals are recorded on the tracks of a magnetic tape or disc, or on grooved tracks in a disc. In one preferred embodiment of the invention the arrangement comprises circuitry for attenuating the noise burst which occurs during the track-switching period of a multi-track recorder using a frequency modulated audio signal, the degree to which the noise is attenuated being correlated to the level of the immediately preceding audio signal.

Abstract: A video recording technique for recording sequential scenes or segments of video information, such as from a video camera, in such a manner that the recorded scenes may be reproduced without loss of synchronization. In a video tape recorder of the longitudinal type, a recording tape is decelerated to a stop at the end of a scene, and is back-spaced for a preselected time or distance. When the camera is next activated, the tape is accelerated to recording speed, and the camera is quickly synchronized with synchronization signals obtained from the tape, before switching to recording mode to record the next scene.

Abstract: A color video tape recording/playback system with a magnetic tape unit and possibly a color video camera comprises at least one signal storage means, e.g. a charge-coupled device (CCD), for the intermediate storage of the video information, thus enabling the recording to be carried out with a reduced bandwidth or at a reduced tape speed and, if applicable, with a reduction of time base errors. Skip line or skip field methods are used or the grouping of several lines is exploited. The reduction of time base errors during playback is achieved by clocking out the stored signal from the charge-coupled device at the rhythm of the tape speed fluctuations in the tape recorder.

Abstract: A servo arrangement for the drive motor of the recording tape of a color video recording and reproducing system, in which a phase detector is included in a tachometer loop for regulating the speed of the drive motor. Another phase detector and a voltage controlled oscillator are included in a tape lock loop for providing to the tachometer loop phase detector a reference derived from off-tape sync information. The voltage controlled oscillator is controlled by the error signal voltage of the tape lock phase detector, and the oscillator output is used as a reference for the tach loop. In one embodiment the oscillator is of the voltage controlled crystal type having a relatively high center frequency which is heterodyned down to a suitable frequency for controlling the tach loop phase detector. In this manner a servo reference of great stability is produced for the tach loop phase detector.

Abstract: A magnetic transducer device for maintaining improved recording tape to transducer head contact at reduced contact pressure. A pair of vertical outrigger bars are mounted on either side of the transducer head transverse to the path of the recording tape. The surfaces of the vertical bars facing the recording tape are located slightly below the plane of the outer surface of the transducer head thereby maintaining a constant, shallow wrap angle of the recording tape over the transducer head. Furthermore, a second pair of horizontal outrigger bars are mounted on either side of and adjacent to the transducer head along an axis transverse to the path of the recording tape.

Abstract: The invention relates to a cartridge for a recording medium in tape or strip form and a transport apparatus for use with such a cartridge, both being favorably matched to one another according to the invention. The cartridge consists essentially of a housing which is composed of parts pivotally connected to one another and, in the closed position, completely encloses a roll of tape wound on a hub. In the open position of the cartridge, at least part of the roll of tape is so exposed that the roll can be rotated and the tape or strip scanned on the apparatus. The transport apparatus is provided with appropriately designed means for receiving the cartridge which, when some of its components are pivoted, swings apart the parts of the cartridge, which is placed upon the apparatus in the closed position, and thus opens the cartridge.