Patents by Inventor Lawrence A. Kenyon, Jr.

Lawrence A. Kenyon, Jr. 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).

  • Local area network with self assigned address method
    Patent number: 4689786
    Abstract: A local area network is disclosed including apparatus and methods for transferring data between a plurality of data processing resources ("agents") coupled to a cable. In the preferred embodiment, a plurality of agents are coupled to a common cable for data transmission and reception. An agent newly coupled to the cable dynamically assigns itself a unique address on the cable to which other agents may send data. Once an agent has been assigned a final address, it may then transmit to, and receive data from, other agents on the cable. An agent desiring to send data to a receiving agent follows a three step handshake, wherein the sending agent transmits an "RTS" signal and within a predetermined time must receive a "CTS" signal from the receiving agent. The sending agent then transmits a data frame within a predetermined time after the CTS signal is received. The failure to detect a return CTS signal within the predetermined time denotes a collision condition.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: August 25, 1987
    Assignee: Apple Computer, Inc.
    Inventors: Gursharan S. Sidhu, Alan B. Oppenheimer, Lawrence A. Kenyon, Jr., Ronald R. Hochsprung
  • Local area network with carrier sense collision avoidance
    Patent number: 4661902
    Abstract: A local area network is disclosed including apparatus and methods for transferring data between a plurality of data processing resources ("agents") coupled to a cable. In the preferred embodiment, a plurality of agents are coupled to a common cable for data transmission and reception. An agent newly coupled to the cable dynamically assigns itself a unique address on the cable to which other agents may send data. Once an agent has been assigned a final address, it may then transmit to, and receive data from, other agents on the cable. An agent desiring to send data to a receiving agent follows a three step handshake, wherein the sending agent transmits an "RTS" signal and within a predetermined time must receive a "CTS"signal from the receiving agent. The sending agent then transmits a data frame within a predetermined time after the CTS signal is received. The failure to detect a return CTS signal within the predetermined time denotes a collision condition.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: April 28, 1987
    Assignee: Apple Computer, Inc.
    Inventors: Ronald R. Hochsprung, Lawrence A. Kenyon, Jr., Alan B. Oppenheimer, Gursharan S. Sidhu