摘要:
A circuit for a loop antenna having a first antenna terminal and a second antenna terminal with an antenna impedance, and method for tuning an overall impedance that has an antenna impedance of a loop antenna and a tuning impedance, with an output amplifier for amplifying a transmit signal that has an output for connection to the first antenna terminal of the loop antenna, with a tuning device designed for automatic tuning that has a terminal, which is separated from the output of the output amplifier for connection to the second antenna terminal, in which the tuning device has an adjustable tuning impedance that is connected to the terminal, in which the tuning device has a measurement device that is connected to the tuning impedance in order to measure a voltage amplitude across the tuning impedance, in which the tuning device has a computing unit that is connected to the measurement device and the adjustable tuning impedance, and in which the computing unit is designed for automatic adjustment of the tuning impedance based on evaluation of the voltage amplitude and the tuning impedance.
摘要:
A circuit for a loop antenna having a first antenna terminal and a second antenna terminal with an antenna impedance, and method for tuning an overall impedance that has an antenna impedance of a loop antenna and a tuning impedance, with an output amplifier for amplifying a transmit signal that has an output for connection to the first antenna terminal of the loop antenna, with a tuning device designed for automatic tuning that has a terminal, which is separated from the output of the output amplifier for connection to the second antenna terminal, in which the tuning device has an adjustable tuning impedance that is connected to the terminal, in which the tuning device has a measurement device that is connected to the tuning impedance in order to measure a voltage amplitude across the tuning impedance, in which the tuning device has a computing unit that is connected to the measurement device and the adjustable tuning impedance, and in which the computing unit is designed for automatic adjustment of the tuning impedance based on evaluation of the voltage amplitude and the tuning impedance.
摘要:
A satellite high-frequency receiver circuit, circuit system for processing satellite signals, and method for operating such a circuit system is provided. The satellite high-frequency receiver circuit for processing satellite signals, includes at least one integrated control circuit which is designed for in-circuit provision or disconnection of a supply voltage, a circuit system for processing satellite signals using a satellite high-frequency receiver circuit for editing the satellite signal, and a satellite signal evaluation circuit for analyzing the edited satellite signal for providing a position signal and/or time signal and/or speed signal, and a method for operating such a circuit system. According to the invention, the satellite high-frequency receiver circuit and/or the satellite signal evaluation circuit have at least one integrated supply terminal which is designed to provide at least one supply voltage to allow at least one discretely designed electronic component provided in the circuit system to be supplied.
摘要:
A frequency divider circuit is disclosed, which has a chain of flip-flops that are connected by a feedback path to a feedback shift register, and has a start circuit that produces a defined initial state of the shift register when the frequency divider circuit is switched on. The start circuit blocks the feedback path for a predetermined length of time following a power up of the frequency divider circuit.
摘要:
A device for administration of a medicated aerosol via the lungs consists of an inhalation mouthpiece 11, with an associated adjustable vaporizer 12, and of a compressed-air control valve 14 through which a pre-settable (13) volumetric flow of compressed air can be discharged to the vaporizer 12 containing the liquid medicament throughout a settable period of time. For operation of the device an electronic controller is provided on which the vaporizing period of the vaporizer and a pause interval can be set, with provisions being made for triggering the beginning of the vaporizing operation by means of a pressure sensor responsive to a suction pressure in the mouthpiece.
摘要:
A transmission frame and a telecommunications device (60, 65, 70) having a transmission frame (1) are proposed, which are used to transmit short messages (5) in a telecommunications network (10), in particular in a radiotelecommunications network. By means of the transmission frame (1), especially flexible transmission of short messages (5) in the telecommunications network (10) is possible. At least two data fields (15, 20, 25, 30) are provided. Data of a short message (5) are stored in memory in the data fields (15, 20, 25, 30). Data in a first data format are stored in a first data field (15), and data in a second data format, different from the first data format, are stored in a second data field (20).
摘要:
A transmission frame and a telecommunications device (60, 65, 70) having a transmission frame (1) are proposed, which are used to transmit short messages (5) in a telecommunications network (10), in particular in a radiotelecommunications network. By means of the transmission frame (1), especially flexible transmission of short messages (5) in the telecommunications network (10) is possible. At least two data fields (15, 20, 25, 30) are provided. Data of a short message (5) are stored in memory in the data fields (15, 20, 25, 30). Data in a first data format are stored in a first data field (15), and data in a second data format, different from the first data format, are stored in a second data field (20).
摘要:
A device for corrugating a metal pipe having a corrugation extending transversely of its longitudinal direction. The device has a ring-shaped corrugating head drivable by a first electric motor and is rotatable about its axis in the operating position and a ring-shaped corrugation disc, coupled to the ring-shaped corrugating head, projects radially inwardly from the corrugation head. The corrugation disc is mounted in the corrugation head so as to be adjustable in the radial direction. A support, coupled to the corrugation head, is arranged so as to also be rotatable about the axis of the corrugation head. An adjusting mechanism acting on the corrugation disc is mounted on the corrugation head. The adjusting mechanism serves for radially adjusting the corrugation disc and is adjustable by the support. The support is connected to a second electric motor serving for rotating the support about the axis (A) of the corrugation head.
摘要:
In a device for positioning a tool in a working area wherein two spaced parallel horizontal guide tracks are provided and a guide slide is movably supported by each guide track, a coupler link is supported on each guide slide so as to be pivotable about a vertical pivot joint axis and the coupler links are joined to each other pivotably about another joint having an axis parallel to the vertical pivot joints of the coupler links, and a spindle extends from the other joint of the coupler links in alignment with the axis thereof so as to be linearly adjustable and is provided with a tool. The spindle with the tool is position-adjustable by linear movement of the guide slides along the tracks whereby the tool supported by the coupler links which are longer than the distance between the two guide tracks can cover also areas at opposite sides of the two parallel guide tracks.