Patents by Inventor Erik I. Wallmark

Erik I. Wallmark 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: 4513393
    Abstract: A document handling terminal is disclosed having a read unit, a printer, an inscriber and an endorser unit, a printer, an inscriber and an endorser unit. A microprocessor in the terminal controls the operation of the various input output units by means of an operation control table loaded into said microprocessor from a host computer. A plurality of instructions in the table are executed in a sequence without branches or jumps by comparing a condition field in each instruction to information stored in a condition register. If the comparison indicates equal, the operation code of the instruction is executed, otherwise not. The execution of an instruction controls data transfer within a buffer store, between the buffer store and input output registers, the setting of operation indicators and changing of data in the condition register. The input output units are selectively operated according to the state of the operation indicators asynchronous to execution of the instructions.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: April 23, 1985
    Assignee: International Business Machines Corporation
    Inventors: Olof A. Edlund, Mats A. Enser, Jan W. Strage, Svante B. Thunberg, Erik I. Wallmark
  • Patent number: 4434460
    Abstract: Hierarchical three-level computer system for receiving input messages from signal sources (23) and for conditionally activating output devices (26) according to input messages; the system comprising a host computer (15), a terminal computer (27) and a number of micro computers (22). The central computer enters condition tables into specific storage modules (2A-2E) within the terminal computer. These tables can be displayed on the terminal computer screen (10) and may be updated from the terminal computer keyboard (8). The micro computer receives input signals from a signal source (22) and composes input messages, which are transferred to the terminal computer. The terminal computer makes a comparison between input messages and condition table data and selectively activates the output devices (26).A specific up and down counting apparatus within the micro computer enables a simultaneous signal detection and data processing operation.
    Type: Grant
    Filed: June 18, 1980
    Date of Patent: February 28, 1984
    Assignee: International Business Machines Corporation
    Inventors: Karl-Gunnar Drakenborn, Mats A. Enser, Kurt G. E. Grebner, Erik I. Wallmark