Patents by Inventor George A. Merritt, Jr.

George A. Merritt, 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).

  • Patent number: 4730312
    Abstract: A standard T-1 span is connected to a digital central office or remote terminal. Telephone equipment for such a T-1 span defines a superframe format with each frame of the twelve frames of a superframe having twenty-four eight-bit position time slots. Telephone system signalling requires T-1 signalling bits be located in the least significant bit position of each time slot in every sixth frame. In the disclosed system, simultaneous digitized voice and data share a single time slot for transmission along with the T-1 signalling bits in that time slot. In order to achieve the additional capability, the disclosed system employs least and next-to-least digitized voice bit swapping and a data bit occupying the space of the swapped least significant digitized voice bit, which bit is deleted.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: March 8, 1988
    Assignee: San/Bar Corporation
    Inventors: Robert D. Johnson, George A. Merritt, Jr., Terry L. Dawson
  • Patent number: 3934098
    Abstract: A message waiting transfer circuit for use in a telephone system is described. An attendant telephone set is arranged to monitor the calls received by a plurality of principal telephone sets. The attendant set includes a receiver (and transmitter) and a separate line or principal set selection key associated with each principal set in the system. Actuation of a selected line selection key and the removal of the receiver from its cradle or switch hooks at the attendant set seizes the telephone line conductors (pair) associated with the selected principal set to enable the operator at the attendant set to answer an incoming call, etc.. The attendant set includes a message control key for providing a message waiting signal to any selected principal set. A separate message waiting transfer circuit is connected between each principal set and the attendant set.
    Type: Grant
    Filed: April 1, 1974
    Date of Patent: January 20, 1976
    Assignee: San/Bar Corporation
    Inventor: George A. Merritt, Jr.