Patents by Inventor David Cayer

David Cayer 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).

  • Patent number: 5822776
    Abstract: A multiported random access memory (RAM) system comprising a RAM having a data port and an address and control port, plural data buffers each having a bidirectional input port and a bidirectional output port, a data bus connecting the output ports of the data buffers and the data port of the RAM, a multiplexer having plural address and control inputs and an address and control output, the address and control output being connected to the address and control port of the RAM, each of the address and control inputs for receiving address and control data associated with data stored in a specific buffer, a timing apparatus connected to each of the buffers and to a control input of the multiplexer for separately enabling the multiplexer to pass address and control data therethrough to the address and control port of the RAM or to receive data from the data port of the RAM, whereby the bidirectional data input ports of the buffers and each of the corresponding address and control input ports forms a separate time sh
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: October 13, 1998
    Assignee: Mitel Corporation
    Inventors: Elizias De Korte, David Cayer