Intel Corporation

Other

Oerlikon Textile Gmbh & Co Kg

Hi Tech Textile Holding Gmbh

Apple Inc.

Infineon Technologies Ag

Intel IP Corporation

Andreas Mayer

Andreas Plump

Tilman Reutter

Daniel Bu

Burkhard Neurauter

Ram S Kanumalli

Ahmed Elmaghraby

Guenther Haberpeuntner

Thomas Mayer

Harald Pretl

Werner Schelmbauer

Gernot Hueber

Christian Wicpalek

Christian Mayer

Thorsten Tracht

Mario Huemer

Volker Neubauer

Hermann Hofer

Svetozar Broussev

Herwig Dietl

Christian Lederer

Otto Blank

Gerald Buha

Andreas Puerstinger

A transceiver that implements a frequency domain cancellation of a transmit (Tx)-modulated spur associated with a transceiver is disclosed. The transceiver comprises a baseband receive (Rx) path configured to propagate a receive signal in frequency domain, associated with an Rx signal path of the transceiver, forming a baseband Rx signal, wherein the baseband Rx signal comprises a wanted Rx signal and an unwanted transmit (Tx) modulated spur. The transceiver further comprises a baseband Tx path configured to propagate a Tx signal in frequency domain, associated with the Tx signal path of the transceiver, thereby forming a baseband Tx signal. In addition, the transceiver comprises a cancellation circuit coupled to the baseband Rx path, configured to receive the baseband Rx signal and the baseband Tx signal, and generate a cancellation signal based thereon, in order to cancel the unwanted Tx modulated spur from the baseband Rx signal.

Frequency domain based digital cancellation of modulated spur interference in LTE-CA transceivers

A method for reducing a distortion component within a baseband receive signal is provided. The baseband receive signal is derived from a radio frequency signal and the distortion component is related to an undesired signal component of the radio frequency signal. The method includes generating a first local oscillator signal having a frequency related to a frequency of the undesired signal component. Further the method includes generating an auxiliary baseband signal using the radio frequency signal and the first local oscillator signal. The method further includes generating a second local oscillator signal having a frequency related to a frequency of a desired signal component of the radio frequency signal. Further the method includes generating the baseband receive signal using the radio frequency signal and the second local oscillator signal. The method includes modifying the baseband receive signal based on the auxiliary baseband signal.

Receiver and a method for reducing a distortion component within a baseband receive signal

A phase locked loop includes a feedforward path receiving a reference signal having a reference frequency and outputting an output signal having an output frequency that is a function of the reference signal and a feedback signal. The phase locked loop further includes a feedback path having a divider circuit associated therewith that is configured to receive the output signal and generate the feedback signal having a reduced frequency based on a divide value of the divider circuit. The feedback signal is supplied to the feedforward path. The phase locked loop also includes a modulator circuit configured to receive modulation data and provide a divider control signal to the divider circuit to control the divide value thereof, and a phase tracker circuit configured to determine an amount of phase drift from an initial phase value of the output signal due to an interruption in a locked state of the phase locked loop.

Phase tracker for a phase locked loop

An apparatus for providing oscillator signals includes an oscillator circuit configured to generate a first oscillator signal with a first oscillator signal frequency for a frequency conversion of a first signal to be converted and to generate a second oscillator signal with a second oscillator signal frequency for a frequency conversion of a second signal to be converted. The oscillator circuit is configured to enable the generation of the first oscillator signal with the first oscillator signal frequency and the second oscillator signal with the second oscillator signal frequency based on at least two different possible oscillator circuit configurations. The control circuit is configured to select, based on the first oscillator signal frequency and the second oscillator signal frequency, one of the possible oscillator circuit configurations of the oscillator circuit for generating the first oscillator signal and the second oscillator signal.

Apparatus and method for providing oscillator signals

A low IF receiver for operation at an intermediate frequency (IF), comprises an antenna port configured to receive a receive signal comprising a wanted RF signal at an RF frequency and a blocker RF signal at a mirror image frequency of the wanted RF signal with respect to a frequency of an local oscillator (LO) signal, from an antenna. Further, the low IF receiver comprises a first mixer component configured to down convert the wanted RF signal and the blocker RF signal to an intermediate frequency (IF) signal, based on the frequency of the LO signal, wherein the IF signal comprises a wanted IF signal at a first intermediate frequency and a blocker IF signal at a second intermediate frequency and a second mixer component configured to receive the IF signal, separate the IF signal into the wanted IF signal and the blocker IF signal, and provide the wanted IF signal at a first output thereof and the blocker IF signal at a second output thereof, based on a tuning signal. In addition, the low IF receiver comprises a power estimation component configured to receive the blocker IF signal, measure a power of the blocker IF signal and select the frequency of the LO signal to be applied to the first mixer component from a plurality of LO frequencies, based on the measured power of the blocker IF signal.

Dynamic low IF injection side selection

A receiver is provided with a digital signal processing circuit to process a receive signal. In addition, the receiver includes an interference detector to detect an interference scenario affecting reception of the signal by the receiver. Depending on the interference scenario detected by the interference detector, the digital signal processing circuit is adapted.

Adaptive digital signal processing of a receive signal

An apparatus is described for needling a fibrous web having at least one needle bar. On its underside, the needle bar carries a needle board with a multiplicity of needles, wherein the needle bar is guided via a movably held bar carrier. The bar carrier is driven in an oscillating manner with a superimposed horizontal and vertical movement by a crank mechanism drive. To this end, a phase shifting device is provided, by which the crankshafts of the crank mechanism drive can be adjusted depending on the phase relation. Here, the movement of the bar carrier is guided by a guide device. In order to obtain stable guidance with high flexibility in every situation, according to the invention the guide device is formed by a steering rod which is connected at one end to the bar carrier by a rotary joint and which is coupled with the other end to a steering gear by a second rotary joint.

Apparatus for needling a fibrous web

The invention relates to a device for needling a fibrous web having at least one needle bar. The needle bar carries a needle board on the bottom thereof having a plurality of needles, the needle bar being guided by means of a moveably mounted bar carrier. The bar carrier is driven by a vertical drive in an oscillating manner in up and down movements. For straight guidance of the bar carrier, a guiding device is provided, which has at least one rocker held at the end by a rotary bearing of a machine frame. In order to obtain the straightest possible guide path in the bar carrier, according to the invention the opposite end of the rocker and the bar carrier are connected by a plurality of members of a coupling kinematic mechanism.

Device for needling a fibrous web

The invention relates to a device for needling a web of fiber, said device comprising at least one driven needle beam. A vertical reciprocal movement of the needle beam is carried out by a vertical drive unit and a superposed horizontal reciprocal movement is carried out by a horizontal drive unit or due to a phase adjustment by the vertical drive unit. A weight balancing device is provided for balancing the inertia forces of the crank mechanisms. In order to be able to balance both vertical and horizontal inertia forces in a simple manner, the weight balancing device is formed by at least one balance weight which is associated with the crank mechanism of the vertical drive unit and which is set-off by an angle in the range of &#x3c;180&#xb0; from an eccentric element of the crank mechanism.

Device for needling a web of fiber

The invention relates to a device for needling a nonwoven web having on the base thereof at least one needle bar comprising a needle board having a plurality of needles. The needle bar is held by a bar carrier on which a vertical drive engages for oscillating motion of the bar carrier for an up and down movement. A superimposed horizontal drive is also associated with the bar carrier, by which a back-and-forth movement is induced. The horizontal drive has two eccentric drives coupled to a horizontal guide. The eccentric drives are each formed by a connecting rod and a crankshaft coupled to a connecting head of the connecting rod. According to the invention, the connecting rods are coupled to the horizontal guide with the connecting rod ends thereof in a diagonal orientation, the center axes of the connecting rods forming an angle.

Device for needling a nonwoven web

Supercharging arrangement for the charge air of an internal combustion

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Gramastetten, Austria

Andreas Mayer