摘要:
Double chamber container for holding and combining, e.g., a lyophilizate and a liquid reconstitution medium, comprising an integral cylindrical body (15) with a closure (20, 60) at each of the two ends (5, 70), an upper movable closure (60) to the side of the reconstitution medium and a lower closure (20) to the side of the lyophilizate, a separating stopper (40) that can be moved in the cylindrical body (15) as a seal between the upper chamber (50) and the lower chamber (30), a bypass (35), arranged below the separating stopper (40), having a length L greater than the height H of the separating stopper (40), wherein at the lower end (5) in the wall of the cylindrical body (15) or in the lower stopper (20) there are provided means (21, 25, 28) that allow connection of the interior of the cylindrical body (15) to the environment during the lyophilization.
摘要:
A method for calibrating a transmitter includes operating the transmitter using a first transmitter setting; obtaining, via an external reference measuring device, a transmit power reference value indicative of a first transmit power of the transmitter corresponding to the first transmitter setting, and obtaining, using an internal measuring device of the transmitter or of a receiver associated with the transmitter, a first uncalibrated transmit power measurement value corresponding to the first transmit power. The method further includes calibrating the internal measuring device using the transmit power reference value and the first uncalibrated transmit power measurement value to provide a calibrated internal measuring device, operating the transmitter using a second transmitter setting, and obtaining, using the calibrated internal measuring device, a second transmit power measurement value indicative of a second transmit power corresponding to the second transmitter setting. Lastly, the method includes obtaining self-calibration data based on the second transmitter setting and the second transmit power measurement value, and storing the self-calibration data in a calibration data structure.
摘要:
A method for producing a transmission signal, wherein an input signal (Vd(t)), which is to be amplified, is fed to a power amplifier (PA) which outputs the signal in an amplified form (va(t)). A reproduction thereof is made and allocates a specific pre-distortion input signal (vd(t)) value to a specific input signal (vd(t)) value. A corresponding pre-distortion value is then determined for the input signal (vd(t)) and the corresponding pre-distortion value is applied to the input signal (vd(t)) in order to feed the pre-distorted input signal to the power amplifier (PA). Subsequently, the crest factor (CF) is calculated from the output signal (vd(t)) of the power (PA) and the reproduction or the value thereof if the determined crest factor departs from a predetermined range of values.
摘要:
The invention relates to a double chamber container for holding and combining two separate components, at least one of which is liquid, comprising a cylindrical body (15) with a closure (20, 60) at each of the two ends (5, 70) of the body (15), an upper closure (60) at the liquid component end and a lower closure (20) at the solid component end, and a separating stopper (40) in the cylindrical body (15) as a seal between the two chambers (30, 50), the separating stopper (40) having a height H and the upper closure (60) at the liquid component end being movable by the application of pressure, and comprising on its underside a hollow needle (45) with a length L having at least one opening (42) which is provided at the end opposite the tip, where H
摘要:
A method for improving the output power of a non-linear amplifier, wherein signal amplitudes of a digital baseband are predistorted and then fed at the input of the power amplifier, having a non-linear characteristic curve, in order to linearize the characteristic curve. The signal amplitudes are fed to the input of the power amplifier in a predistorted manner up to a predetermined transition power while being fed to the input of the power amplifier in a non-predistorted manner from the predetermined transition power on.
摘要:
The invention relates to a double chamber container for holding and combining two separate components, at least one of which is liquid, comprising a cylindrical body (15) with a closure (20, 60) at each of the two ends (5, 70) of the body (15), an upper closure (60) at the liquid component end and a lower closure (20) at the solid component end, and a separating stopper (40) in the cylindrical body (15) as a seal between the two chambers (30, 50), the separating stopper (40) having a height H and the upper closure (60) at the liquid component end being movable by the application of pressure, and comprising on its underside a hollow needle (45) with a length L having at least one opening (42) which is provided at the end opposite the tip, where H
摘要:
A circuit arrangement for a multimode mobile telephone that transmits and receives signals to and from various mobile radio networks contains a baseband and a transceiver unit. The transceiver unit includes a digital adaptive predistorter having a switching element. The switching element is arranged so that an optional connection is created. The optional connection connects an amplifier output to an input of a receiver causing that receiver input to be disconnected from an antenna changeover switch. This way, it is possible for the receiver to be disconnected from a transmitting and receiving antenna during periods when the receiver is not receiving signals from the transmitting and receiving antenna. While the receiver is disconnected from the transmitting and receiving antenna, the receiver is able to receive other signals. By using a simple switch the receiver can be disconnected from the transmitting and receiving antenna, and at the same time establish a connection between the output of the transmitter amplifier and the input of the receiver. By doing so, the receiver is able to tap off and detect signals at the output of the transmitter amplifier.
摘要:
The invention concerns a bumper for a motor vehicle which is constructed mainly of molded plastic parts and optically appears to be part of the vehicle body. The bumper consists mainly of a support part (10) extending across the vehicle, three absorbing elements (12, 14, 14') that can be inserted into the support part, and an elastic exterior shell (16). On the lateral end sections, the support part (10) has lateral shells (22, 22') which extend between the lateral absorbing elements (14, 14') and the exterior shell (16). In a collision, the lateral shells (22, 22') yield backwards under the deformation of the absorbing elements (14, 14'), so that components attached to the lateral shells are protected from damage.
摘要:
An apparatus for determining information on a power variation of a transmit signal comprises a power amplifier module, an antenna module and a power variation determining module. The power amplifier module amplifies a radio frequency transmit signal and the antenna module transmits at least partly the amplified radio frequency transmit signal. The power variation determining module determines a weighted sum of a first feedback signal derived from the amplified radio frequency transmit signal and a second feedback signal derived from the amplified radio frequency transmit signal. The first feedback signal and the second feedback signal comprise different dependencies on a varying impedance at the antenna module. Further, the power variation determining module generates a power variation signal based on the weighted sum. The power variation signal comprises information related to a power variation of the amplified radio frequency transmit signal.
摘要:
A control circuit and a method for controlling an operation of a power amplifier core are provided. The power amplifier core is switchable between an envelope tracking operation mode and a non-envelope tracking operation mode. The control circuit is configured to provide a control signal for controlling the operation of the power amplifier core or to process an amplified signal received from the power amplifier core in dependence on the operation mode of the power amplifier core.