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:
Oct. 08, 2002
Filed:
Aug. 17, 1998
Kenneth Araujo, Sunnyvale, CA (US);
Peter Si-Sheng Wang, Cupertino, CA (US);
3Com Corporation, Santa Clara, CA (US);
Abstract
A communications network operating in a data cable system that transmits a data over cable media access control (MAC) frame with an Ethernet/ISO8802-3 type packet protocol data unit payload. Time frames for transmission of data over the network are allocated to cable modems and time frames originally allocated to a cable modem for transmission of lower priority data can be utilized to transfer high priority data while aborting the transmission of lower priority data. A high level data link control (HDLC) section is coupled immediately before a cyclical redundancy check (CRC) to indicate that all data packet protocol data units (PDU) that are encapsulated by HDLC flags is high priority data that is not to be discarded and other data is to be abandoned.