Patents Assigned to MOXZ GmbH
  • Publication number: 20250119330
    Abstract: Communication systems and methods in accordance with various embodiments of the invention utilize modulation on zeros. Carrier frequency offsets (CFO) can result in an unknown rotation of all zeros of a received signal's z-transform. Therefore, a binary MOCZ scheme (BMOCZ) can be utilized in which the modulated binary data is encoded using a cycling register code (e.g. CPC or ACPC), enabling receivers to determine cyclic shifts in the BMOCZ symbol remitting from a CFO. Receivers in accordance with several embodiments of the invention include decoders capable of decoding information bits from received discrete-time baseband signals by: estimating a timing offset for the received signal; determining a plurality of zeros of a z-transform of the received symbol; identifying zeros from the plurality of zeros that encode received bits by correcting fractional rotations resulting from the CFO; and decoding information bits based upon the received bits using a cycling register code.
    Type: Application
    Filed: October 18, 2024
    Publication date: April 10, 2025
    Applicants: California Institute of Technology, The Regents of the University of California, MOXZ GmbH
    Inventors: Philipp Walk, Babak Hassibi, Peter Jung, Hamid Jafarkhani
  • Patent number: 12155519
    Abstract: Systems and methods for transmitting data using various Modulation on Zeros schemes are described. In many embodiments, a communication system is utilized that includes a transmitter having a modulator that modulates a plurality of information bits to encode the bits in the zeros of the z-transform of a discrete-time baseband signal. In addition, the communication system includes a receiver having a decoder configured to decode a plurality of bits of information from the samples of a received signal by: determining a plurality of zeros of a z-transform of a received discrete-time baseband signal based upon samples from a received continuous-time signal, identifying zeros that encode the plurality of information bits, and outputting a plurality of decoded information bits based upon the identified zeros.
    Type: Grant
    Filed: July 21, 2023
    Date of Patent: November 26, 2024
    Assignees: California Institute of Technology, MOXZ GmbH
    Inventors: Philipp Walk, Babak Hassibi, Peter Jung