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:
Aug. 13, 2002
Filed:
Jul. 30, 1999
Kenneth M. Buckland, Rohnert Park, CA (US);
Jan C. Hobbel, Cotati, CA (US);
Earl B. Manchester, Rohnert Park, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A universal DS- channelized format is provided wherein selected states of CAS bits are used to indicate to the transport mechanism when DS- channels are not being used for voice and are available for use for data transport. In addition, the T frame format carries CAS bits only in the first DS- channel, so that robbed bits are disabled and not used to carry ABCD signaling bits, thereby avoiding any risk of data corruption. Still further, a special CAS signaling value not defined as a CAS state, is employed in a frame nibble instead of a frame counter to indicate that the state is in the first DS- slot.