Patents by Inventor Harshad K. Desai

Harshad K. Desai 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: 4701845
    Abstract: A processor forms part of a computer network wherein the processor, designated as the User Interface Processor, operates to initialize and maintain and communicate to remote diagnostic terminals for purposes of confirming integrity of the system and also for finding the location of any faults or problems in the system. The User Interface Processor involves a microprocessor unit working in conjunction with a serial communications controller, random access memory and read only memory memories, a communications input/output (I/O) system, a multiple set of timer units and a priority interrupt controller. The User Interface Processor provides interfaces to a power control card unit, an I/O subsystem (of data link processors), and a remote terminal for diagnostic intercommunication.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: October 20, 1987
    Assignee: Unisys Corporation
    Inventors: David A. Andreasen, Jerrold E. Buggert, Harshad K. Desai, Zubair Hussain
  • Patent number: 4695946
    Abstract: A maintenance processor forms part of a computer network wherein the processor (also designated as the User Interface Processor) operates to initialize and maintain and communicate to remote diagnostic terminals for purposes of confirming integrity of the system and also for displaying data for locating any faults or problems in the network. The maintenance subsystem initiates start-up and self-test routines in a sequenced order for establishing the integrity of the units in the network. The subsystem includes means for testing two types of subsystems, that is, one having I/O controllers with self-test capability and another subsystem having I/O controllers without self-test capability. The UIP provides means for complete control of the network. It can interface the network to a remote service center where all operations such as power-up and initialization can be also effectuated.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: September 22, 1987
    Assignee: Unisys Corporation
    Inventors: David A. Andreasen, John H. Armstrong, Jerrold E. Buggert, Harshad K. Desai, Stephen D. Baumgardner, Kenneth E. Buckmaster, Zubair Hussain