Abstract: The invention relates to a method and an arrangement for igniting a gas flow by means of remote control. The aim of the invention is to maintain the current consumption so low that an integratable voltage source can be used. To this end, a thermoelectric safety pilot valve (17) is opened and the escaping gas ignited by the actuation of an electronic control unit (5) fed by a voltage source. Said thermoelectric safety pilot valve (17) is maintained open by a safety pilot magnet (18) by means of a holding current from the voltage source until a thermocouple (22) provides the required holding current once the gas flow has been ignited or a defined holding time is exceeded.

Abstract: The invention relates to a method and a circuit for igniting a gas flow in a fully automatic manner. The aim of the invention is to maintain the necessary current consumption so low that an integratable voltage source can be used. To this end, once an electronic control unit has been activated, a thermoelectric safety pilot valve (2) is opened by an electromagnet which is temporarily excited by a rush of current, is maintained in the open position by a safety pilot magnet (6) by means of a holding current provided by a voltage source (10), and the escaping gas is ignited. Once a thermoelectric couple (4) is provided for the necessary holding current, the voltage source (10) is switched off. In the event of damage, the method is automatically interrupted.

Abstract: The aim of the invention is to create a gas regulating fitting which, once a gas stove has been successfully started up, can switch the pilot burner into the off position when the main burner is in the off position, in order to maintain the power consumption of the gas stove as low as possible. The aim of the invention is also to provide the gas regulating fitting with as simple a structure as possible. To this end, the gas regulating fitting comprises a sensor (34) by which means the operating state of the main burner (33) can be detected. The sensor (34) is connected to a thermoelectric safety pilot valve (17) in such a way that, when the operating state of the main burner (33) is switched from the on position into the off position by a signal emitted from the sensor (34), the thermoelectric safety pilot valve (17) assumes the closed position thereof. The gas regulating fitting can be used to ignite and to regulate a gas flow flowing to a burner.

Abstract: The aim of the invention is to create a gas regulating fitting which, once a gas stove has been successfully started up, can switch the pilot burner into the off position when the main burner is in the off position, in order to maintain the power consumption of the gas stove as low as possible. The aim of the invention is also to provide the gas regulating fitting with as simple a structure as possible. To this end, the gas regulating fitting comprises a sensor (34) by which means the operating state of the main burner (33) can be detected. The sensor (34) is connected to a thermoelectric safety pilot valve (17) in such a way that, when the operating state of the main burner (33) is switched from the on position into the off position by a signal emitted from the sensor (34), the thermoelectric safety pilot valve (17) assumes the closed position thereof. The gas regulating fitting can be used to ignite and to regulate a gas flow flowing to a burner.

Abstract: A method and a configuration produce a fault signal that is suitable for identifying transmission faults when using differential signaling. A first mid-level signal whose potential is in the area of the mid-point between the signal level on a first signal line and a signal level on a second signal line, when a logic “1” is transmitted is compared with a second mid-level signal formed when a logic “0” is transmitted. The fault signal is produced if the discrepancy between the two mid-level signals is greater than a predetermined threshold value.

Abstract: The invention relates to a method and a circuit for igniting a gas flow in a fully automatic manner. The aim of the invention is to maintain the necessary current consumption so low that an integratable voltage source can be used. To this end, once an electronic control unit has been activated, a thermoelectric safety pilot valve (2) is opened by an electromagnet which is temporarily excited by a rush of current, is maintained in the open position by a safety pilot magnet (6) by means of a holding current provided by a voltage source (10), and the escaping gas is ignited. Once a thermoelectric couple (4) is provided for the necessary holding current, the voltage source (10) is switched off. In the event of damage, the method is automatically interrupted.

Abstract: The invention relates to a method and an arrangement for igniting a gas flow by means of remote control. The aim of the invention is to maintain the current consumption so low that an integratable voltage source can be used. To this end, a thermoelectric safety pilot valve (17) is opened and the escaping gas ignited by the actuation of an electronic control unit (5) fed by a voltage source. Said thermoelectric safety pilot valve (17) is maintained open by a safety pilot magnet (18) by means of a holding current from the voltage source until a thermocouple (22) provides the required holding current once the gas flow has been ignited or a defined holding time is exceeded.

Abstract: A control apparatus and a method for controlling access to a memory in an integrated circuit for an electronic module is provided. The invention includes a memory which is split into a plurality of memory areas which contain data relating to the module. The invention also includes a password register which contains at least one password for the manufacturer of the module and at least one password for a user. An access control means stipulates certain conditions for at least one of the memory areas, such as the extent to which the memory area is readable or writeable, where at least one of the following conditions can be stipulated for portions of a memory area: a memory area is readable when the manufacturer password is input; a memory area is readable when the user password is input; a memory area is readable without a password; a memory area is writeable when the manufacturer password is input; a memory area is writeable when the user password is input; a memory area is writeable without a password.

Abstract: A drive device for a light-emitting component including a reference source, which generates a current specification signal specifying a desired current through the light-emitting component, a current mirror circuit, which generates a current equal to a fraction of the actual current through the light-emitting component, and a regulating device having a first input and a second input, the first input being connected to the current mirror circuit and the second input being connected to the reference source. In this case, the regulating device generates a regulation signal that regulates the current through the light-emitting component in such a way that the deviation between the desired current and the actual current becomes minimal.

Abstract: A drive device for a light-emitting component including a reference source, which generates a current specification signal specifying a desired current through the light-emitting component, a current mirror circuit, which generates a current equal to a fraction of the actual current through the light-emitting component, and a regulating device having a first input and a second input, the first input being connected to the current mirror circuit and the second input being connected to the reference source. In this case, the regulating device generates a regulation signal that regulates the current through the light-emitting component in such a way that the deviation between the desired current and the actual current becomes minimal.

Abstract: The invention relates to a control apparatus and a method for controlling access to a memory in an integrated circuit for an electronic module. The invention provides a memory which is split into a plurality of memory areas which contain data relating to the module; a password register which can contain at least one password for the manufacturer of the module and at least one password for a user; and access control means which stipulate, for at least one of the memory areas, the extent to which the memory area is readable or writeable, where at least one of the following items is respectively stipulatable for a memory area: the memory area is readable when the manufacturer password is input; the memory area is readable when the user password is input; the memory area is readable without a password; the memory area is writeable when the manufacturer password is input; the memory area is writeable when the user password is input; the memory area is writeable without a password.

Abstract: In connection with a method for automatically inserting documents to be displayed on a display device and/or copied in a digitizing device, such as microfiches, microfilm jackets or the like, in which process one document at a time is transported from a stack of documents to be processed to a document support and from there to a deposit magazine for the processed documents, provision is made according to the invention that the top document of a stack of documents contained in the holding magazine is pulled up by suction to about the level of the document support and the remaining stack is subsequently retained by suction acting in the opposite direction; the document pulled up by suction is transported sideways to the document support, and deposited on said support by terminating the suction effect, and the document is then picked up by suction again after it has been processed, and is transported to the deposit magazine.

Abstract: A method and a configuration produce a fault signal that is suitable for identifying transmission faults when using differential signaling. A first mid-level signal whose potential is in the area of the mid-point between the signal level on a first signal line and a signal level on a second signal line, when a logic “1” is transmitted is compared with a second mid-level signal formed when a logic “0” is transmitted. The fault signal is produced if the discrepancy between the two mid-level signals is greater than a predetermined threshold value.

Abstract: A laser current control circuit for controlling laser currents has a plurality of laser drivers, each for setting a laser current. A first control device controls a basic and/or modulation current of the plurality of laser drivers. Each of the laser drivers is provided a further control device, for adjustment of the basic and/or modulation current of the respectively assigned laser driver. Preferably, the first control device contains a regulating device for regulating the basic and/or modulation current. The circuit thus enables central regulation in conjunction with individual adjustment of the laser currents.

Abstract: To ensure laser safety, also in the case of a largest possible coupled optical power, during the direct optical coupling of a light-emitted component to an optical waveguide, an optical system includes coupling the light through a fiber end configured as a multimode step index optical waveguide having a numeric aperture larger than the half-width value of the angular distribution of the radiation emitted from the radiation source. To distribute the radiation fed into the actual optical waveguide over the largest possible angular range with regard to the luminous power, the coupling of the light beam into the fiber end is effected such that the coupled light beams are inclined in relation to the geometric axis of the optical core of the fiber end at a defined angle.

Abstract: ½″ Dual Braided Nylon, 5′0″ Sling

Abstract: In connection with a method for automatically inserting documents to be displayed on a display device and/or copied in a digitizing device, such as microfiches, microfilm jackets or the like, in which process one document at a time is transported from a stack of documents to be processed to a document support and from there to a deposit magazine for the processed documents, provision is made according to the invention that the top document of a stack of documents contained in the holding magazine is pulled up by suction to about the level of the document support and the remaining stack is subsequently retained by suction acting in the opposite direction; the document pulled up by suction is transported sideways to the document support, and deposited on said support by terminating the suction effect, and the document is then picked up by suction again after it has been processed, and is transported to the deposit magazine.

Abstract: To ensure laser safety, also in the case of a largest possible coupled optical power, during the direct optical coupling of a light-emitted component to an optical waveguide, an optical system includes coupling the light through a fiber end configured as a multimode step index optical waveguide having a numeric aperture larger than the half-width value of the angular distribution of the radiation emitted from the radiation source. To distribute the radiation fed into the actual optical waveguide over the largest possible angular range with regard to the luminous power, the coupling of the light beam into the fiber end is effected such that the coupled light beams are inclined in relation to the geometric axis of the optical core of the fiber end at a defined angle.

Abstract: A transmission device contains a plurality of laser transmitters that can be driven individually with a driving current and output optical signals and whose operating point is set via a respective bias current. Each bias current has an individual correction current impressed on it. The correction currents are dimensioned such that, for the same bias current, the laser transmitters have an identical or essentially more uniform average optical output power at the desired operating point.

Abstract: A communication module includes several parallel transmitting diodes and at least one monitor transmitting diode arranged on a common substrate. The module also includes at least one monitor device consisting of a monitor transmitting diode, a receiving device and a control device. A modulated optical signal generated by a monitor transmitting diode is detected by a receiver device, and is converted and transmitted as a monitor signal to the control device. Depending on the transmitted signal, the control device generates a first control signal for the driver device with the purpose of regulating the modulation flow of the transmitting diodes and the monitor transmitting diode. The modulation amplitude for the modulation stream for the monitor transmitting diodes is lower than the modulation amplitude of the modulation stream for the transmitting diodes. The disturbing influence of the monitor signal on the data signal of the transmitting diodes is thereby minimized.