Patents by Inventor David G. Ratzel

David G. Ratzel 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).

  • Compact digital timing recovery circuits, devices, systems and processes
    Patent number: 6937683
    Abstract: A digitally implemented timing recovery circuit for recovering a clock signal from an input bit stream. The recovery circuit comprising an edge detector for detecting a transition from “0” to “1” or “1” to “0” in the input bit stream, a phase counter having a plurality of registers indicative of the phase counter transition state, and a loop counter having a plurality of registers indicative of the loop counter transition state. When the phase counter reaches a particular transition state, a recovered clock pulse is enabled. The phase counter is preferably non-linear to optimize the circuit.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: August 30, 2005
    Assignee: Cirronet Inc.
    Inventor: David G. Ratzel
  • Method and system for data transmission in a wireless network
    Patent number: 6873615
    Abstract: A method and apparatus for a wireless communication network. The network utilizing time-division-multiple-access (TDMA) and being configured in a star layout having a base station and at least one remote station. A packet frame having a header, a trailer and a packet is transmitted and received throughout the communication network. The packet is defined to support a registration mechanism for controlling access of remote stations into and out of the network and supporting retransmission of defective or lost packets.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: March 29, 2005
    Assignee: Cirronet Inc.
    Inventor: David G. Ratzel
  • Method and system for data transmission in a wireless network
    Publication number: 20010036169
    Abstract: A method and apparatus for a wireless communication network. The network utilizing time-division-multiple-access (TDMA) and being configured in a star layout having a base station and at least one remote station. A packet frame having a header, a trailer and a packet is transmitted and received throughout the communication network. The packet is defined to support a registration mechanism for controlling access of remote stations into and out of the network and supporting retransmission of defective or lost packets.
    Type: Application
    Filed: March 23, 2001
    Publication date: November 1, 2001
    Inventor: David G. Ratzel