The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 1988
Filed:
Dec. 24, 1985
John M Nichols, Arvada, CO (US);
American Telephone and Telegraph Company, Holmdel, NJ (US);
AT&T Information Systems, Inc., Holmdel, NJ (US);
Abstract
A data transmission flow control arrangement for controlling the flow of data packets to a network as tramsmitted by one or more data transmitting and receiving devices via an interface is disclosed. The disclosed flow control arrangement provides circuitry in the interface responsive to the storage capacity of a buffer included in the interface. If the buffer contains sufficient space to store a data packet of maximum length, data transmissions continue unencumbered. However, if the buffer contains insufficient space to accomodate a data packet of maximum length, the specialized circuitry of the interface responds to this condition and applies a signal to all of the associated transmitting and receiving devices of the interface. The jamming signal simulates the conditions associated with a busy network and therefore, inhibits the transmission of data from any of the associated transmitting and receiving devices. The specialized circuitry of the interface terminates the application of the jamming signal to all associated transmitting and receiving devices when the buffer again contains sufficient space to accommodate a data packet of maximum length.