Abstract: An Ethernet network with redundancy properties and an associated method for detecting and eliminating errors in the network. A redundancy manager (6), which is connected to the line ends of the network (1), checks the status of the network by transmitting and receiving test telegrams. If there is an interruption in the network, the redundancy manager (6) connects the line ends (7, 8) and thereby ensures continued network operation within milliseconds. The network has a loop structure that is less expensive than a dual bus structure even though fast media redundancy is ensured.
September 11, 2000
Date of Patent:
August 6, 2002
Siemens Aktiengesellschaft, Richard Hirschmann GmbH & Co.
Karl Glas, Joachim Lohmeyer, Rolf Reuschen, Bernhard Schmid
Abstract: The invention relates to an antenna device having at least one antenna structure (5-10) fixed to a vehicle window (3). The base point terminal connections of each antenna have contact points (11) which form a termination panel (4) surrounded by a base (1) arranged on the vehicle window (3) in which a radio frequency device (2) can be removably fixed, whose connection terminals maybe connected to contact points (11) without using any connecting lines.
Abstract: In the case of a housing seal (3, 3′) for cable through-duct apertures that can be inserted into receptacles (2, 2′) for the cable through-duct apertures, whereby housing seal (3, 3′) has at least two sealing areas (7, 7′or 9, 9′) with different sealing contours and can be inserted into receptacles (2, 2′) in different directions as desired, a low overall height and the use of the housing seal with the same shape for the inlet and outlet apertures of a housing are possible even when asymmetrically profiled cables are used if two sealing areas (7, 7′or 9, 9′) are provided on adjacent sides of housing seal (3, 3′), whereby one side points in the direction of the cable through-duct.
Abstract: An improved circuit and method for connecting a device to an actuator-sensor interface (“ASI”) bus. The circuit provides the proper AC and DC coupling between the device and bus during normal operation, while providing AC and DC decoupling in the event of a short circuit or when the device is disconnected. The circuit accomplishes these goals while advantageously eliminating some of the components used in prior art circuits.
Abstract: A cable plug connector (1) with at least one contact (3) fitted in a chamber of a contact carrier (2) and taking the form of a plug (8) which has an insulation displacement section (9) at its connection end (11) to contact an insulated cable lead (5) inserted into a blind hole (24) in the contact carrier (2) by means of an insulation displacement slot (16) fitted in a contact plate (14) running transversely to the plug-in direction, the insulation displacement section (9) is a separate part passing with the contact plate (14) through an aperture (20) in the connection end (11) of the plug (8). The contacts (3) are thus simply and economically suitable for the use of different lead diameters by exchanging the insulation displacement section (9). They are also usable with advantage especially in cable plug connectors (1) produced by injection molding because no special measures are needed to seal the plug contact regions.
Abstract: A clamp contact device for providing mechanical and electrical attachment for cables, wires, and electrical conductors. A single device can provide simultaneous dual attachment modes for cables, wires, and plugs. One end of the device contains two holes on separate spring legs. The spring legs can be pressed towards each other until the holes are in alignment. By inserting the cable through the aligned holes and releasing the legs, spring tension in the legs tries to force the holes apart, clamping the cable in place. The other end of the device has an opening for insertion of an pin, plug, or similar element. A fork spring that partially extends into the interior of the device provides spring-loaded extensions that contact an inserted plug and hold it in place, without the need to initially press on any part of the device. The device can be manufactured from a single piece of sheet metal.
Abstract: An improved vehicle antenna device that reduces the cost and complexity of the antenna and its installation procedure. An antenna is mounted within the fender of a vehicle, while the antenna amplifier is mounted on the opposite side of a structural wall. The electrical connection between the antenna and its amplifier passes through a vehicle wall through a water-tight bushing. The bushing is made an integral part of the amplifier housing so that attachment of the housing to the vehicle wall causes the bushing to simultaneously penetrate an opening in the wall and seal that opening. The antenna is then plugged into an electrical connector in the bushing which is already in electrical contact with the amplifier, thus completing the installation. The water-tight seal can be improved by coating the bushing with an elastic material, by giving the bushing a slight tapered shape, or both.
September 8, 1997
Date of Patent:
July 20, 1999
Richard Hirschmann GmbH & Co.
Werner Rathgeb, Michael Eckstein, Bernhard Funk, Marco Daum-Siegesmund
Abstract: In a screw clamp (2) for connecting electrical conductors (36), the clamp body has a U-shaped sheet-metal component (4) between the arm sections (5, 6) of which is held a nut (9) to accept a clamping screw (11) and in which the end section (12) of the first arm section (5) is bent through 90.degree. towards the second arm section (6), bears upon the latter and has an opening (17) though which the clamping screw (11) can be inserted. To improve the mechanical strength of such a screw clamp (2) while at the same time reducing its structural height, the end section (15) of the second arm section (6) is also bent towards the first arm section (5) and has a screw opening (18), with the two end sections (12, 15) and the nut (9) being in mutual contact.
Abstract: A multipin cable connector (1) which includes a male connector (16) and a cable seat (10), for connecting a multi-core cord (2) with individual stranded wires (4) by axially contacting the mating-side end sections of the wires (4) with cable-side end areas of contacts (13) located in contact carrier (11) of male connector (16). The end areas are formed especially as contact spikes (20), and are routed and held up to stop (29) in tubular channels (27) of distribution piece (5). One cable-side end part (24) of distribution piece (5) is formed as a clamping area which tapers conically to the free end and has an outline (25) which is matched to the inside contour (26) of mating-side section (18) of tubular grip (6) of cable seat (10), where external wall part (33), which surrounds each channel (27), has at least one longitudinal slot (32).
Abstract: In a process for interconnecting computers and/or computer networks, the occurrence of an interruption in the network system is detected. A redundant connection is activated as a function of said interruption. The redundant connection is inactive in undisturbed operation. The presence of an interruption is detected by determining whether a data signal appears within a predetermined period of time at the connectors of a redundant connective device. Different criteria are provided to interrupt a closed connecting ring generated by the activation of the redundant connecting device when the initial interference in the network system is eliminated.
Abstract: An intermediate amplification process for digital signals with pulse regeneration, determines the phase difference between the receiving timing signal and the local transmission timing signal and alters the phase of the local transmission timing signal as a function of the phase difference. It is particularly advantageous that the receiving timing signal is used as the transmission timing signal as soon as the phase difference becomes essentially zero. It is possible in this manner to minimize both the startup time delay and the packet spacing, as the number of bits to be stored intermediately may be kept low.
Abstract: According to the receiving method for mobile reception has a plurality of individual receiving antennas, also known as diversity receiving method, on the individual antenna output signals an auxiliary modulation is superimposed and the antenna output signals are added to give a summation signal which as amplified selected intermediate-frequency summation signal is then demodulated in relation to amount and frequency or phase, the phase position of an individual signal in relation to the phase position of the summation signal and/or the amplitude contribution of an individual signal to the amplitude of the summation signal thereby being determined. This information is utilized for optimizing the useful signal with a view to optimum interference suppression for example in that the phases and/or amplitudes of the high-frequency individual signals are changed in dependence upon the phase position and/or amplitude contribution determined.
Abstract: A sender/receiver apparatus configured for a bi-directional beam wave guide may be configured with an optical prism. the device can be placed in a housing with a wave guide socket connected at an optical port. Spherical lenses and an internal wave guide may be located between the prism and the optical port, the sender and the receiver, respectively. The prism may exhibit an aperture reflecting surface or diaphragm.