摘要:
A method and apparatus are provided for adaptive equalization of distorted pulse signals with different pulse train speeds, particularly for bipolar signals. The edge time deviations of a signal derived from the pulses output from a variable equalization network are determined relative to a reference signal, and the results are used to selectively enable or disable individual circuit elements of the network in order to minimize the deviations. The circuit elements are controlled by a clocked binary counter, the counting direction of which is changed depending on the determined edge deviation change. The degree of equalization thusly achieved may be predetermined by presetting the count reading of the counter.
摘要:
A drive arrangement for an ink ribbon cassette or the like having a transport roll arranged inside of the cassette permits the cassette to be inserted and ejected in a direction perpendicular to the transport roll axis relative to the receiving compartment of a ribbon device and also provides an automatic coupling between the transport roll and a drive shaft forming part of the device. The drive shaft is shiftable between a coupling position and a decoupling position set back from the coupling position against the force of spring means. On the forward end of the cassette as it is inserted perpendicular to the transport roll axis is a ramp which during the inserting movement of the cassette runs against the drive shaft and pushes it to its decoupled position. When the cassette reaches its fully inserted position the drive shaft automatically catches into the transport roll. Special actuating means are provided for decoupling the drive shaft from the transport roll. The drive arrangement is especially useful for the ink ribbon cassettes of printers.
摘要:
A device for a simultaneous soldering of at least two connecting elements (52) of an electronic structural element (54) on a circuit plate bar (50) comprises a workpiece support (44) and a laser (10) for producing the soldering energy, and has arranged two soldering beams (20) of at least approximately equal intensity, having in their path, at any time, an optic (30) for focusing the soldering beams (20) on the soldering spots. The resonator of the laser (10) is closed on both of its londitudinal sides by a semi-reflecting mirror (12) for production of a relative movement between the soldering beams (20) and the workpiece support (44), there is, at any time, a deflecting device provided, having two by a control device (48) independently adjustable mirrors (38, 40) for an operative deflection of the respective soldering beam (20).
摘要:
In a money till with a box-shaped housing (10), whose upper side is partially closed by a stationary cover (12) and partially closed by a lid (16), the lid includes two lid parts (18, 20) connected with one another about a pivot axis (22), the first lid part (18) which is closer to the stationary cover (12) being guided for sliding movement parallel to the stationary cover (12), whereas the second lid part (20) is connected with at least one guide element (34) which, at a radial spacing from the pivot axis (22), is engaged with a cam curve (36) so that upon a sliding of the lid (16) the second lid part (20) is pivoted between a closed position and an open position.
摘要:
A container for receiving currency bills or the like includes a plurality of adjacent compartments (22) and a housing (12) enclosing these with a closure unit (18) which is designed for selectively unblocking a predetermined compartment opening. The compartments are made up of individual compartment receptacles (22) which are arranged to be movable in the housing (12) parallel to the direction in which the compartment opening points and to which a positioning device (136) is assigned, through which respectively one compartment receptacle (22) can be moved between a waiting position, in which it is completely inside the housing (12), and an access position in which it partially protrudes out of the opening which is unblocked by the closure unit and substantially corresponds to the cross section of the compartment receptacle (22).
摘要:
The receiving unit for a data card (10) containing an electronic circuit includes a push-in frame showing a receiving compartment (20) for the data card (10) which frame is pivotable between an input/output position and an operating position in which the receiving compartment (20) is inaccessible, and locking means for fixing the push-in frame in the operating position, where the push-in frame is under initial stress in its input/output position and is arranged behind a case wall (14) of the receiving compartment (20) of the receiving unit in such a way that the receiving compartment (20) in its input/output position is in alignment with an input/output slot (16) in the housing wall (14). The locking means include an elastically deflectable restoring unit (32; 54,60), which puts the pushed-in data card (10) under initial stress counter to the push-in direction, and at least one catch projection (34) which is arranged fixed on the case in the region of the input/output slot (16) in such a way that it overlaps the edge of the data card (10) turned toward the input/output slot in the operating position of the push-in frame.
摘要:
A receiving level control signal is generated line side, and the data signal is reproduced line side of a receiving circuit for signal transmission systems to regenerate a data signal and to generate a receiving level control signal from a received bipolar input signal, in which line and operating side are electrically isolated.
摘要:
With a device for pressing at least one magnetic read/write head (16) against a recording medium (14) in motion relative to it with a swivel-mounted pressure lever (52) carrying the read/write head (16) that runs in the recording medium's (14) direction of motion and is pressed to the recording medium (14) by means of spring force and with stationary guide elements (76, 78) that limit read/write head (16) movement at right angles to the recording medium's (14) direction of motion. The read/write head (16) is equipped with pivot pins (90, 92) that, in the pressed operating position of read/write head (16), define a swivel axis lying approximately parallel to recording medium (14) as well as its direction of motion and that are held in the position at pressure lever (52) as well as by means of guide elements (76, 78) that are displaceably directed in the direction of pressure of the read/write head.
摘要:
The invention relates to a viewing screen unit (2) with a viewing screen housing (6) supported swivelably around a swivel axis (4). The viewing screen housing (6) has the shape of a circular cylinder segment, where the viewing screen plane essentially coincides with the intersecting plane (10) of the circular cylinder segment and the pivot axis (4) coincides with the cylinder axis. In a preferred embodiment, the viewing screen housing (6) is fastened swivelably onto a receiving housing (8) containing at least part of the components. The receiving housing (8) is provided with a concave recess (19) turned toward the viewing screen housing (6), which recess fits closely against the curved rear wall of the viewing screen housing. The supporting of the swivelable viewing screen housing is preferably done by supporting means which act on either the inside of the end faces or on the curved back side of the viewing screen housing (6).
摘要:
Process for producing a multipolar multipoint connector (terminal strip) with a plurality of contact prongs arranged one beside another on a plastic carrier or the like. For this all of the contact prongs still joined together by webs are assembled on the carrier in one operating step and only then are cut apart (or separated) from one another. An improved carrier as well as a better assembling (or mounting) ensure a form-locking joining of the contact prongs with the carrier. Besides this, a process for providing the new multipoint connector is supplied.