Abstract:
A chip card (1) is disclosed with write and/or read contacts (10, 11, 12, 13, 14, 15, 16, 17) on its surface. The write and/or read contacts (10, ..., 17) contact corresponding rigid matching contacts (20, ..., 27) of a card reader with a chip card (1) reception shaft. The contacts (10, ..., 17) are designed in such a way that contact is maintained when the chip card (1) is moved beyond its normal position, in particular when it is inserted into the card reception shaft, during the time required to end a writing operation when the chip card (1) is removed from the card reception shaft and/or when the chip card (1) is moved in or across its insertion direction into the card reader, in particular when the chip card (1) is inserted into or withdrawn from the card reader. The contacts (10, ..., 17) are designed in such a way that no short-circuit is produced between individual contacts (10, ..., 17) when the matching contacts (20, ..., 27) pass over the contacts (10, ..., 17). A chip card reader has a chip card (1) reception shaft and matching contacts (20, ..., 27) that mechanically cooperate with write and/or read contacts (10, ..., 17) on the chip card (1) and that electrically connect a computer to the contacts (10, ..., 17). The matching contacts (20, ..., 27) are rounded in and/or across the insertion direction of the chip card (1) into the card reader. The curvature radius is selected in such a way that no short-circuit is produced between individual contacts (10, ..., 17) when the matching contacts (20, ..., 27) pass over the contacts (10, ..., 17) of the chip card (1).
Abstract:
The invention relates to a method and a device for controlling a vehicle drive unit. According to said method the control functions for the power of the drive unit and the monitoring of said control functions are carried out by a single microcomputer. A monitoring module separated from the microcomputer is provided to check the monitoring functions and send test signals to the microcomputer at a given time. Said microcomputer subsequently calculates the monitoring function of interest on the basis of test data. The result of the calculation is transmitted to the monitoring module which checks the operation capacity of the function monitoring system in the microcomputer by comparing it with stored values.
Abstract:
The invention relates to a conveyer for the transfer of workpiece carriers (35) with a main conveyer section (20, 21, 22, 23) and with a secondary conveyer section (26, 27) parallel thereto, and with at least one transverse conveyer section (29, 32) which is arranged between the conveyer belts (20 to 23, 26, 27) and which forms a discharge point (38, 39, 44, 51) in a crossing zone. The conveyer sections (20 to 23, 26, 27, 29, 32) are in the form of twin-belt conveyers with an internal conveyer belt (37, 42, 27, 57) and an external conveyer belt (36, 41, 48, 58), and the internal conveyer belt (37, 47) of the transverse conveyer (29, 32) is shortened by the width of the discharge point (38, 39, 44, 51) to which a passive conveyer belt section (43) arranged at said discharge point (38, 39, 44, 51) is attached at a distance in the end region (53), the end regions (52, 53) of the transverse conveyer section (29, 32) at the discharge points (38, 39, 44, 51) being mounted so that they can be positioned and removed.
Abstract:
The invention concerns a head-lamp with an integrated microwave antenna, the head-lamp comprising a rotationally symmetrical paraboloidal reflector (21) and the microwaves being radiated in a directly lateral manner. To that end, an electrical feed element (15) is disposed laterally of the reflector (21) and at a suitable spacing in front of a light source (13), viewed in the radiation direction (14). The microwave system feed element (15) is arranged such that the radar beam is directed through the upper half of the reflector and focused. The beam path for the light source is represented by the marginal rays (131 and 132). The beam path for the microwave system feed element (15) is represented by marginal rays (151 and 152). According to the invention, the optical system with its light source (13) and the microwave system with its feed element (15) and/or receiver element are designed operationally and spatially such that they are completely independent of one another and are disposed separately. The two systems, each configured separately from the other in optimum manner, can then be fitted jointly in the common housing for the head-lamp.
Abstract:
The invention relates to a frequency error detector independent of channel distortions which determines in a receiver the frequency error between the carrier frequency produced in the receiver and the carrier frequency of a receiving signal. Said frequency error detector has a first differential power measurement unit (10, 11, 12, 13, 14) which establishes the power differential between components of the receiving signal spectrum which are symmetrical to the receiver carrier frequency, and has a second differential power measurement unit (10, 11, 15, 16, 17, 18, 19, 20) which establishes the power differential between components of the spectrum arising as a result of under-sampling of the receiving signal, said components being symmetrical to the receiver carrier frequency (TE). The sum (zn) of the output signals (un, vn) of the two differential power measurement units (10, . . ., 20) provides data on the frequency error.
Abstract:
For editing data, in particular for transmission via a channel with given variable data rate, the data are separated into bit classes which are provided with various error redundancies. Said bit classes are also assessed with weighting factors. The code rates for the bit classes are allocated in relation to the respective weighting factors. The invention proposes to produce a scalable channel codec, the configuration thereof only depending on the available channel codec bit rate. Said channel codec is simple to adapt to different transmission processes.
Abstract:
The invention relates to a sensor, in particular for determining the oxygen content in internal combustion engine exhaust gases. Said sensor has a sensor element (22) which is surrounded and fixed by a seal (19) to be gas-tight in a housing (12). The seal (19) is arranged in the form of a pre-sintered, deformable sealing structure (19') in the housing (12) between a moulded ceramic structure (18) on the side of the gas to be measured and a moulded ceramic structure (20) on the side of the connection, wherein the pre-sintered sealing structure (19') can be deformed under pressure. The moulded ceramic structures (18, 20) and the sealing structure (19') have holes (32, 42, 52) extending axially therethrough. The sealing structure (19') has integrally moulded components which narrow the cross-section of the hole (42) and can be deformed by the sensor element (22) when it (22) is inserted in such a manner that said sensor element (22) is locked by the integrally moulded components in the assembly position. The moulded ceramic structures (18, 20) and the sealing structure (19') also have members each which engage positively in each other on the mutually contacting end surfaces and which orientate the moulded ceramic structures (18, 20) and the sealing structure (19') radially so that the holes (32, 42, 52) are aligned with each other.
Abstract:
The invention concerns a tool holder (10) for inserted tools in drill and/or hammer-driven machines, having means for rotating and axially locking a tool spindle insertable into a tool holder (11) of the machine, where the tool holder is fitted with several radially inward-projecting axial ridges (13) for rotation and at least one radially lockable clamp on the tool holder (10) for locking purposes. In order to accept tool spindles of two groove spindle systems with different outside diameters, on the holder drilling (12) there are two opposite, radially inwardly directed axial ridges (13) which are radially guided and especially spring-loaded to be released outwards, where the axial ridges (13) engage in corresponding grooves (20) in the tool spindle (19) so as to rotate the tool.
Abstract:
The proposal is for a telecommunications terminal intended for optical signalling. The telecommunications terminal comprises an optical signalling device (1, 2, 3, 4) which can be connected on one side via a first diode (30) in the forward direction and a first cradle contact (35) to a first core (10) of a subscriber's line (10, 11) and on the other is connected in the forward direction via a second diode (60) to a second core (11) of the subscriber's line (10, 11). Between the first diode (30) and the optical signalling device (1, 2, 3, 4) is connected the cathode of a third diode (15), the anode of which can be connected via a second cradle contact (25) and a fourth diode (65) with the same polarity as the third (15) to the first core (10). It is thus possible for the optical signalling device (1, 2, 3, 4) to be used for both optical call signalling and a further optical signal, e.g. a message waiting signal. To attain flicker-free call signalling, a fifth diode (70) is connected with its anode to the anode of the second diode (60) and its cathode to the anode of the fourth diode (65) and a sixth diode (75) is connected with its cathode to the cathode of the fourth diode (65) and its anode to the cathode of the second diode (60).
Abstract:
The proposal is for a process for producing cold emission points in which a plurality of holes (2) is made in an insulating material (1) and then filled with a metal. Metal bodies (3) are thus formed which, owing to the small diameter of the holes (2), form the cold emission points. The typical diameter of the holes (2) is from a few to a few tens of nanometres.