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:
Jan. 31, 1984
Filed:
Aug. 16, 1982
Larry Greenstein, Miami, FL (US);
Michael B Marshall, Ft. Lauderdale, FL (US);
Racal Data Communications Inc., Miami, FL (US);
Abstract
A microprocessor-controlled method and apparatus for handling transfer of data in bisynchronous protocol between a data source and a data transmission link. The apparatus responds to particular character sequences to request allocation of transmission capacity from a multiplex controller and to terminate character transmission over the data link. The apparatus includes SIO devices for handling character input and output and a microprocessor and associated memory for examining and queuing the received characters. Bidirectional I/O devices communicating with the microprocessor are used in accomplishing monitoring of interface signal changes and in communicating with the multiplex controller.