摘要:
A multicarrier transmitter has a first mode, in which the transmitter is configured to transmit a first component carrier signal modulated onto a first carrier by using a first LO signal, and a second mode, in which the transmitter is configured to transmit the first component carrier signal modulated onto the first carrier and a second component carrier signal modulated onto a second carrier by using a second LO signal. The multicarrier transmitter is coupled to a controllable oscillator and configured to adapt a frequency of an LO signal output by the controllable oscillator dependent on the multicarrier transmitter being activated in the first or second mode to output the first LO signal or the second LO signal. For example, the multicarrier transmitter may be configured to switch between the first mode and the second mode while transmitting the component carrier signals.
摘要:
A communication system includes a first DAC array, a second DAC array, and a merge component. The first DAC array is configured to receive a first portion of modulation signals and to generate a first RF signal according to a modulation mode. The second DAC array is configured to receive a second portion of the modulation signals and to generate a second RF signal according to the modulation mode. The merge component is configured to receive the first RF signal and the second RF signal. The merge component is also configured to generate an output RF signal according to the first RF signal and the second RF signal, wherein the output RF signal has a modulation format according to the modulation mode.
摘要:
A method and an apparatus provide a plurality of modulated signals by frequency shifting an output signal of a carrier signal generation circuit for obtaining a first carrier signal and a second carrier signal, and by modulating the first and second carrier signals.
摘要:
A seal, which is disposed at a vertical frame profile of a stationary door leaf or of a movable door leaf and has a sealing profile protruding from the frame profile and a deformation chamber extending in a longitudinal direction of the sealing profile. A part of the sealing profile protruding from the front side of the frame profile in cross-section forms the portion (T) of an ellipse or substantially of an ellipse, the minor axis (N) of the ellipse intersecting the wall of the sealing profile outside the frame profile.
摘要:
A mobile apparatus includes an internal hands-free loudspeaker and a magnetic shielding plate that protects external objects sensitive to magnetic fields from the high-level magnetic field generated by the loudspeaker.
摘要:
A safety device for, in particular, nonrailborne vehicles, having a monitoring device to monitor a hazardous area and additionally the road area, located on the opposite side of the hazardous area viewed from the vehicle and adjoining the hazardous area. Obstacles in the hazardous area and/or road area are detected. An output signal is brought about if an obstacle which prevents the hazardous area being traveled through completely has been detected.
摘要:
In a belt tensioner of a seat belt in a vehicle, particularly a motor vehicle, for the return movement of the belt, a return spring is provided which is able to be tensioned by a motor as a function of parameters. The motor may also be used for a reversible tightening of the belt.
摘要:
A method for producing a spark plug which contains an inner conductor, an insulator surrounding the inner conductor, a spark plug body surrounding the insulator, and two electrodes forming an ignition gap. The first electrode is a center electrode connected to the inner conductor in an electrically conducting manner and the second electrode is a ground electrode connected to the spark plug body in an electrically conducting manner. An iridium component which contains more than 95 percent by weight of iridium is welded onto one of the electrodes. An iridium component that is punched out of an iridium sheet and has a thickness that is less in size than its diameter is also employed.
摘要:
An apparatus including a body part configured to receive a replaceable internal part, a first cover part configured to be movable between an open position and a closed position, a second cover part configured to be movable between an open position and a closed position, and when in said closed position, to cover the replaceable internal part. A locking mechanism is configured to lock the second cover part to the body part and the locking mechanism is configured to be releasable, when the first cover part is in said open position and the locking mechanism is configured to be unreleasable, when the first cover part is in said closed position.
摘要:
The invention relates to an HF ignition device for igniting a fuel in an internal combustion engine with a corona discharge, comprising an ignition electrode, an insulating body on which the ignition electrode is mounted, the insulating body having a continuous channel in which an inner conductor leading to the ignition electrode is disposed, and an outer conductor which encloses the insulating body and, in combination with a section of the inner conductor, forms a capacitor, wherein the channel is filled with an electrically conductive filling material which encloses at least one conductor piece that forms at least one section of the inner conductor.