Abstract: A flat clothing for a revolving flat of a carding machine includes a foundation and a plurality of clothing tips formed from U-shaped wire hooks penetrating through the foundation and situated in adjacent rows with a row spacing between successive rows. A row offset in the direction of the length of the foundation is defined between the clothing tips in the adjacent rows such that the clothing tips are not situated one behind the other in successive rows. At least two successive zones are defined, wherein each zone has at least three rows of hooks and the row offset of the first zone differs from the row offset of the second zone. A row spacing between each row in the second zone and a following adjacent row, viewed in the fiber running direction, is different from the row spacing between the row and a preceding adjacent row.

Abstract: A clothing carrier (1) for flexible or semi-rigid clothings is formed from a random fiber sheet consolidated by needling. The random fiber sheet is formed from PES or PA fibers (10) and is impregnated with a polymer (11). The random fiber sheet is laminated with a PUR film (12) to structurally compensate at least one surface of the random fiber sheet.

Abstract: The invention relates to a clothing for processing textile fibers, with a clothing carrier (1) and clothing tips (2), with the clothing tips (2) being formed by wire hooks (4). The wire hooks (4) are pushed through the clothing carrier (1) in a punching process. The clothing carrier (1) is a random, paneled nonwoven formed from continuous fibers or staple fibers (10) that has been consolidated by needling and impregnated with a polymer (11) having a defined specific weight per unit area and a functional layer (12) applied to a side of the clothing carrier (1) facing toward the clothing tips (2). The polymer (1) has a proportion by weight of 20 to 70 percent of the specific weight per unit area of the random nonwoven.

Abstract: A clothing carrier (1) for flexible or semi-rigid clothings is formed from a random fiber sheet consolidated by needling. The random fiber sheet is formed from PES or PA fibers (10) and is impregnated with a polymer (11). The random fiber sheet is laminated with a PUR film (12) to structurally compensate at least one surface of the random fiber sheet.

Abstract: The invention relates to a clothing carrier (3) for flexible or semi-rigid clothings (2) for processing fiber material, wherein the clothing carrier (3) has a longitudinal direction (6) and a transverse direction (7). The transverse direction (6) corresponds to a working direction (A) of the clothing (2). The clothing carrier (3) exhibits a maximum tensile force (FL) in the longitudinal direction (6) which is greater than a maximum tensile force (FQ) in the transverse direction (7).

Abstract: A system for compensating for periodic noise in a time interleaved system having multiple phases of interest includes a master clock path, a detection circuit and an actuator circuit. The master clock path is configured to receive an input clock and to output an output clock, each of the input and output clocks having periodically occurring interleaving periods. Each interleaving period includes timeslots corresponding to the phases of interest of the time interleaved system. The detection circuit is configured to receive the input and output clocks for each timeslot, and to detect periodic noise in the output clock introduced by the master clock path by comparing the received input and output clocks. The actuator circuit includes a controllable delay element configured to adjust a delay of the input clock through the master clock path to compensate for the periodic noise detected by the detection circuit for each timeslot.

Abstract: The invention relates to a clothing carrier (3) for flexible or semi-rigid clothings (2) for processing fiber material, wherein the clothing carrier (3) has a longitudinal direction (6) and a transverse direction (7). The transverse direction (6) corresponds to a working direction (A) of the clothing (2). The clothing carrier (3) exhibits a maximum tensile force (FL) in the longitudinal direction (6) which is greater than a maximum tensile force (FQ) in the transverse direction (7).

Abstract: A clock recovery circuit includes a phase detector, a loop filter, a phase rotator, a predictor and a delay line. The phase detector receives an input data signal and generates a phase error signal for estimating phase error in the input data signal when referred to a recovered clock. The loop filter receives the phase error signal and determines a phase control signal based on the phase error signal. The phase rotator receives the phase control signal, and provides a phase adjusted clock based on a reference clock and the phase control signal. The predictor receives the phase error signal, and determines a delay control signal based on the phase error signal. The delay line outputs the recovered clock by delaying the phase adjusted clock from the phase rotator using the delay control signal from the predictor, and provides the recovered clock to the phase detector.

Abstract: A device for driving a switch in a digital-to-analog converter (DAC) includes first and second latches, and a logic gate. The first latch is configured to store a digital input data signal according to a clock signal, and to output a first latch signal corresponding to the stored digital input data signal. The second latch is configured to store the first latch signal output by the first latch according to a logical inverse of the clock signal, and to output a second latch signal corresponding to the stored first latch signal. The logic gate is configured to perform an OR logic operation on the first latch signal and the second latch signal, the logic gate outputting a drive signal for driving a switch in the DAC connected to a current source.

Abstract: A device for driving a switch in a digital-to-analog converter (DAC) includes first and second latches, and a logic gate. The first latch is configured to store a digital input data signal according to a clock signal, and to output a first latch signal corresponding to the stored digital input data signal. The second latch is configured to store the first latch signal output by the first latch according to a logical inverse of the clock signal, and to output a second latch signal corresponding to the stored first latch signal. The logic gate is configured to perform an OR logic operation on the first latch signal and the second latch signal, the logic gate outputting a drive signal for driving a switch in the DAC connected to a current source.

Abstract: A phase-locked loop circuit comprises an analog section, a digital section and a digital offset mitigation circuit. The analog section is subject to offset error and comprises an analog phase comparator and an analog-to-digital converter. The digital section comprises a digital loop filter and a digitally-controlled frequency-generating circuit. The digital loop filter is connected to receive a digital difference signal from the analog-to-digital converter. The digital offset mitigation circuit is operable in response to the digital difference signal to mitigate the offset error of the analog section.

Abstract: Systems and methods of characterizing eye diagrams are described. In one aspect, at measurement times across a measurement interval spanning at least one unit interval of the input signal, corresponding levels of the input signal are classified into groups based on at least one threshold. An eye diagram characteristic width is derived based on a distribution across the measurement interval of the levels in one of the groups.