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. 11, 2000
Filed:
May. 19, 1997
Motorola, Inc., Schaumburg, IL (US);
Abstract
A data communication system (2) provides a circuit and method for prioritizing and controlling the transfer of data to and from a plurality of communication channels (6-11). The data communication system defines a predetermined data threshold level (X,Y) for a data buffer (16-21) for each of the plurality of communication channels. A service request signal is generated for a one of the plurality of communication channels when a respective data buffer stores data to be transferred. The data communication system generates a threshold signal for a communication channel when a data value stored in a respective data buffer reaches a predetermined data threshold level of the data buffer. The priority levels of the communication channels which generate threshold and service request signals are then compared to determine a high priority communication channel. The highest priority communication channel is then serviced.