Patents by Inventor George W. Schramm

George W. Schramm 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).

  • Multimode data communication system
    Patent number: 4607364
    Abstract: A data transmission system that can controllably transmit data in three different modes between connected data devices. The first mode transmits data at a 64 Kbps rate. The second mode transmits data at a 56 Kbps rate plus control signals at an 8 Kbps rate. The third mode transmits data and control messages at a rate of up to 50 Kbps between connected terminals or other data devices. For all modes, the data is transmitted by inserting it one byte at a time into an information field of successive ones of cyclically reoccurring time multiplexed frames.
    Type: Grant
    Filed: November 8, 1983
    Date of Patent: August 19, 1986
    Inventors: Jeffrey Neumann, David W. Petr, George W. Schramm, John B. Sharp
  • Data communication method and circuitry
    Patent number: 4601035
    Abstract: A data communication method and circuitry which uses a compatible subset of a standard high level data link control (HDLC) protocol to control link level communication between a digital terminal and a switch. The use of the subset of HDLC protocol reduces the complexity of the digital terminal design while maintaining communication compatibility with a switch which uses either the standard HDLC protocol or the subset of HDLC protocol.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: July 15, 1986
    Assignees: AT&T Bell Laboratories, AT&T Information Systems
    Inventors: Richard P. Marzec, George W. Schramm, John B. Sharp, David J. Stelte, David M. Tutelman
  • Digital communication station signaling control
    Patent number: 4512016
    Abstract: There is disclosed a processor controlled digital communication device which accepts message commands from a communication system as part of a communication protocol. These command messages are stripped from the protocol and combined within the communication device to control signaling thereat. Multi-bit time separated information (I) fields are used together with a single bit signaling (S) field. The S field bits are compiled over several frames to become the command messages.
    Type: Grant
    Filed: February 4, 1983
    Date of Patent: April 16, 1985
    Assignee: AT&T Information Systems Inc.
    Inventors: Emanuel J. Fulcomer, Jr., Richard J. Nici, Vance E. Poteat, George W. Schramm, John B. Sharp, Michael M. Winseck, Jr.
  • Digital dual channel communication terminal
    Patent number: 4512017
    Abstract: There is disclosed a digital telephone having dual voice and data handling capability over a single communication line. Time separated information channels are used to transport the voice and data information between the terminal and the main processor. A separate signaling channel is shared between the two information channels and information on the signaling channel is accumulated for distribution to either the voice device or the data device in accordance with address information contained within the accumulated signaling channel message.
    Type: Grant
    Filed: February 4, 1983
    Date of Patent: April 16, 1985
    Assignee: AT&T Information Systems
    Inventors: Richard J. Nici, George W. Schramm, John B. Sharp