Patents by Inventor John C. Bellamy, II

John C. Bellamy, II 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).

  • High density digital transmission system
    Patent number: 4135057
    Abstract: A high density bandlimited digital transmission system with a transmitter and a receiver connected by a radio path with an end-to-end channel transfer function selected to form at the receiver either raised cosine pulses or partial response pulses. The transmitter is partitioned or divided into an active pulse forming network and a passive pulse shaping and bandlimiting network. The active and passive networks are concatenated and in combination provide an optimal transmitter-receiver combination for raised cosine or for partial response signaling. Transmit and receive filters provide optimal signal pulse shaping while meeting specified out-of-band signal suppression.In-phase and quadrature phase carriers (I and Q channels) work with rectangular or half-wave sinusoidal modulating pulses. Further, time-offset or time-coincident pulses on each of the respective I and Q channels are used. Multi-level embodiments are also disclosed.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: January 16, 1979
    Assignee: Arthur A. Collins, Inc.
    Inventors: Jon W. Bayless, Sr., Robert D. Pedersen, John C. Bellamy, II
  • Hardwired marker for time folded TST switch with distributed control logic and automatic path finding, set up and release
    Patent number: 4038497
    Abstract: A marker circuit communicating with a stored program controller and switch stages, implementing pathfinding, connect, and disconnect operations while using address, status, and data buses to control the switch through exchange of connect information from the stored program controller and disconnect information from the switch control stores.
    Type: Grant
    Filed: May 12, 1975
    Date of Patent: July 26, 1977
    Inventors: Arthur A. Collins, John C. Bellamy, II, Richard L. Christensen
  • Time folded TST (time space time) switch
    Patent number: 4005272
    Abstract: A time folded time space time (TST) switch with the establishing of a communication through path in one direction automatically establishing a path in the opposite direction in an adjacent time slot. With one transfer through a space switch made during an even time slot, the other transfer is made in a symmetrical fashion during the following odd time slot. This time folded TST switch selectively interconnects digital bi-directional Time Division Multiplexed (TDM) transmission paths.
    Type: Grant
    Filed: August 14, 1974
    Date of Patent: January 25, 1977
    Assignee: Arthur A. Collins, Inc.
    Inventors: Arthur A. Collins, Robert D. Pedersen, John C. Bellamy, II
  • Time space time (TST) switch with combined and distributed state store and control store
    Patent number: 3956593
    Abstract: A time space time (TST) switch using two basic modules, a time switching module and a space switching module with individual module elements interconnectable to realize a great range of time division switch sizes and configurations. Control stores and state stores associated with respective switching elements are combined and incorporated into the time switch and space switch modules.
    Type: Grant
    Filed: October 15, 1974
    Date of Patent: May 11, 1976
    Assignee: Artura A. Collins, Inc.
    Inventors: Arthur A. Collins, John C. Bellamy, II, Richard L. Christensen