Patents by Inventor Christophe Van Praet

Christophe Van Praet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Two stage source-follower based filter
    Patent number: 9124251
    Abstract: A filter, comprising: two source-follower stages connected in series and in between input nodes and output nodes, wherein inner nodes connect the two stages; and a frequency dependent feedback circuit connected between the input and output nodes, wherein the filter comprises additional frequency dependent feedback circuits connected between input nodes and inner nodes and between output nodes and inner nodes, the additional frequency dependent feedback circuits comprising capacitors.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: September 1, 2015
    Assignees: IMEC VZW, Universiteit Gent
    Inventors: Christophe Van Praet, Guy Torfs, Johan Bauwelinck, Jan Vandewege
  • Down-sampling clock and data recovery circuit having selectable rate and phase output and method of operation thereof
    Patent number: 8971718
    Abstract: A clock and data recovery (CDR) circuit, a method of recovering a clock and data from a received raw data stream and a BI-PON optical network transceiver (ONT) receiver front-end incorporating the CDR circuit. In one embodiment, the CDR circuit includes: (1) a line rate CDR circuit having a voltage controlled oscillator, the line rate CDR circuit configured to recover a raw data stream at a receiving line rate, (2) a fixed-rate down-sampler coupled to the line rate CDR circuit and configured to down-sample the raw data stream based on a fixed-rate and (3) a variable-rate down-sampler coupled to the fixed-rate down-sampler and configured further to down-sample the raw data sample based on a variable-rate.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: March 3, 2015
    Assignee: Alcatel Lucent
    Inventors: Hungkei Chow, Dusan Suvakovic, Christophe Van Praet, Guy Torfs, Xin Yin, Zhisheng Li
  • Two Stage Source-Follower Based Filter
    Publication number: 20140247089
    Abstract: A filter, comprising: two source-follower stages connected in series and in between input nodes and output nodes, wherein inner nodes connect the two stages; and a frequency dependent feedback circuit connected between the input and output nodes, wherein the filter comprises additional frequency dependent feedback circuits connected between input nodes and inner nodes and between output nodes and inner nodes, the additional frequency dependent feedback circuits comprising capacitors.
    Type: Application
    Filed: February 27, 2014
    Publication date: September 4, 2014
    Applicants: Universiteit Gent, IMEC VZW
    Inventors: Christophe Van Praet, Guy Torfs, Johan Bauwelinck, Jan Vandewege
  • DOWN-SAMPLING CLOCK AND DATA RECOVERY CIRCUIT HAVING SELECTABLE RATE AND PHASE OUTPUT AND METHOD OF OPERATION THEREOF
    Publication number: 20130322885
    Abstract: A clock and data recovery (CDR) circuit, a method of recovering a clock and data from a received raw data stream and a BI-PON optical network transceiver (ONT) receiver front-end incorporating the CDR circuit. In one embodiment, the CDR circuit includes: (1) a line rate CDR circuit having a voltage controlled oscillator, the line rate CDR circuit configured to recover a raw data stream at a receiving line rate, (2) a fixed-rate down-sampler coupled to the line rate CDR circuit and configured to down-sample the raw data stream based on a fixed-rate and (3) a variable-rate down-sampler coupled to the fixed-rate down-sampler and configured further to down-sample the raw data sample based on a variable-rate.
    Type: Application
    Filed: June 1, 2012
    Publication date: December 5, 2013
    Applicant: Alcatel-Lucent USA, Inc.
    Inventors: Hungkei Chow, Dusan Suvakovic, Christophe Van Praet, Guy Torfs, Xin Yin, Zhisheng Li