11.
    发明专利
    未知

    公开(公告)号:DE102004037164A1

    公开(公告)日:2006-03-23

    申请号:DE102004037164

    申请日:2004-07-30

    Abstract: A device for the regulated delay of a clock signal is proposed, which comprises a delay means in order to generate a delayed clock signal, and comparison means for the phase comparison of the delayed clock signal with a reference clock signal. The reference clock signal is in this connection preferably formed by the clock signal or is derived therefrom. On the basis of a comparison signal generated by the comparison means, a digital control signal is generated for controlling the delay means. The comparison means are configured so as to generate the comparison signal as a digitally coded signal that has a pulse duty ratio and a frequency that are determined by a further clock signal that is generated independently of the first clock signal, and that preferably has twice the frequency of the first clock signal.

    12.
    发明专利
    未知

    公开(公告)号:DE10337084B4

    公开(公告)日:2006-01-12

    申请号:DE10337084

    申请日:2003-08-12

    Abstract: Generator signals are generated by unit (10), providing signals with certain signal form determined in dependence on preset signal norm form. Matching unit (20) adapts generated signal form to properties of signal transmission channel. Signal generating and matching units are so fitted that signals transmitted, via transmission channel, from matching unit are in signal form corresponding to preset signal norm form. Signal matching and generating units are of digital type.

    14.
    发明专利
    未知

    公开(公告)号:SE0402045D0

    公开(公告)日:2004-08-18

    申请号:SE0402045

    申请日:2004-08-18

    Abstract: A CDR circuit arrangement, for example for a transceiver module, features a data recovery unit ( 4 ) for the recovery of the data contained in a received signal (DATA) by scanning this received data signal, and a phase evaluation unit for the determination of a suitable phase position for the scanning carried out by the data recovery unit ( 4 ). The phase evaluation unit comprises a scanning device ( 1 ) for the oversampling of a the received data signal (DATA) in accordance with several different scanning phases (P 0 -P 6 ), a phase detector device ( 2 ) for the evaluation of the scanning values (A 0 -A 6 ) accordingly prepared by the scanning device ( 1 ), in order thereby to derive intermediate signals (UP 1 -UP 3, DN 1 -DN 3 ), which classify the phase error during the scanning of the data signal by the scanning device ( 1 ) in respect of its size and direction of deviation, as well as a filter device ( 3 ), in order to subject the intermediate signals (UP 1 -UP 3, DN 1 -DN 3 ) generated by the phase detector device ( 2 ) to a weighted filtering process. In this situation, a setting signal (DeltaP) is generated by the filter device ( 3 ) for the subsequent regulation and control of the scanning phases (P 0 -P 6 ) of the scanning device ( 1 ).

    DEVICE FOR RECOVERING DATA FROM A RECEIVED DATA SIGNAL

    公开(公告)号:AU2002325915A1

    公开(公告)日:2003-09-22

    申请号:AU2002325915

    申请日:2002-07-26

    Abstract: A CDR circuit arrangement, for example for a transceiver module, features a data recovery unit ( 4 ) for the recovery of the data contained in a received signal (DATA) by scanning this received data signal, and a phase evaluation unit for the determination of a suitable phase position for the scanning carried out by the data recovery unit ( 4 ). The phase evaluation unit comprises a scanning device ( 1 ) for the oversampling of a the received data signal (DATA) in accordance with several different scanning phases (P 0 -P 6 ), a phase detector device ( 2 ) for the evaluation of the scanning values (A 0 -A 6 ) accordingly prepared by the scanning device ( 1 ), in order thereby to derive intermediate signals (UP 1 -UP 3, DN 1 -DN 3 ), which classify the phase error during the scanning of the data signal by the scanning device ( 1 ) in respect of its size and direction of deviation, as well as a filter device ( 3 ), in order to subject the intermediate signals (UP 1 -UP 3, DN 1 -DN 3 ) generated by the phase detector device ( 2 ) to a weighted filtering process. In this situation, a setting signal (DeltaP) is generated by the filter device ( 3 ) for the subsequent regulation and control of the scanning phases (P 0 -P 6 ) of the scanning device ( 1 ).

    16.
    发明专利
    未知

    公开(公告)号:DE10207315A1

    公开(公告)日:2003-09-18

    申请号:DE10207315

    申请日:2002-02-21

    Abstract: A CDR circuit arrangement, for example for a transceiver module, features a data recovery unit ( 4 ) for the recovery of the data contained in a received signal (DATA) by scanning this received data signal, and a phase evaluation unit for the determination of a suitable phase position for the scanning carried out by the data recovery unit ( 4 ). The phase evaluation unit comprises a scanning device ( 1 ) for the oversampling of a the received data signal (DATA) in accordance with several different scanning phases (P 0 -P 6 ), a phase detector device ( 2 ) for the evaluation of the scanning values (A 0 -A 6 ) accordingly prepared by the scanning device ( 1 ), in order thereby to derive intermediate signals (UP 1 -UP 3, DN 1 -DN 3 ), which classify the phase error during the scanning of the data signal by the scanning device ( 1 ) in respect of its size and direction of deviation, as well as a filter device ( 3 ), in order to subject the intermediate signals (UP 1 -UP 3, DN 1 -DN 3 ) generated by the phase detector device ( 2 ) to a weighted filtering process. In this situation, a setting signal (DeltaP) is generated by the filter device ( 3 ) for the subsequent regulation and control of the scanning phases (P 0 -P 6 ) of the scanning device ( 1 ).

    LINE DRIVER FOR DIGITAL SIGNAL TRANSMISSION

    公开(公告)号:CA2453146A1

    公开(公告)日:2003-01-30

    申请号:CA2453146

    申请日:2002-06-07

    Inventor: GREGORIUS PETER

    Abstract: The invention relates to a line driver, wherein an input current (IINN) feed s a node (K1) which is connected to an input of an amplifier (OTA1). A second input of the amplifier (OTA1) is supplied with a reference voltage (VSGND). The amplifier (OTA1) controls a current source (MN1) which supplies an outpu t current (IOUTN). A current-voltage converter (R1) is connected between the node (K1) and the current source (MN1), and a voltage-current converter (R2) is connected between the current source (MN1) and ground (VSS).

    19.
    发明专利
    未知

    公开(公告)号:DE10125366A1

    公开(公告)日:2002-12-12

    申请号:DE10125366

    申请日:2001-05-23

    Abstract: The invention relates to a VGA stage having a novel circuit configuration for amplifying/attenuating a differential input signal which is transmitted via a transmission line (H). The VGA stage comprises an operational amplifier (OPV 1 , OPV 2 ), which is connected as shunt feedback, for amplifying the input signal; a string of resistors (R 01 , R 01' ) for attenuating the signal; and a control device ( 2 ) for switching the string of resistors (R 01 , R 01' ).

    20.
    发明专利
    未知

    公开(公告)号:DE10125023A1

    公开(公告)日:2002-12-12

    申请号:DE10125023

    申请日:2001-05-22

    Abstract: The invention relates to a transmitter for transmission of digital data via a transmission line ( 10 ), comprising a current-driving digital/analogue converter ( 1 ) which is arranged at the input of the transmitter; a current-operated form filter ( 2 ) for forming the current pulses which are supplied from the digital/analogue converter; a line driver ( 5 ) which carries out current/voltage conversion; and a circuit for offset compensation ( 6 ), which is arranged in a feedback path ( 11 ). In order to improve the quality of the pulses which are transmitted at the output of the transmitter, the invention proposes that the internal signal processing of the transmitter be carried out on a current basis.

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