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:
Dec. 27, 2005
Filed:
Jan. 17, 2001
William R. Bullman, Bethlehem, PA (US);
Matthew Henry, Fogelsville, PA (US);
Ryan S. Holmqvist, Basking Ridge, NJ (US);
Steven E. Strauss, Orefield, PA (US);
William R. Bullman, Bethlehem, PA (US);
Matthew Henry, Fogelsville, PA (US);
Ryan S. Holmqvist, Basking Ridge, NJ (US);
Steven E. Strauss, Orefield, PA (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
A data-based software type link integrity module is implemented separately in hardware (e.g., using physical gates, using a microcontroller, etc.) and separated from core CPU functionality in a network device, such that the link integrity module may remain powered in a cold power mode (e.g., when core functionality is powered down). The separately powered data-based link integrity module is powered by an auxiliary backup power source. Thus, when in a power down mode (e.g., when in an ACPI defined D3 type cold state) a minimal power source may be used to power the separate link integrity module separate from the power source to the core network device functionality. The separately powered data-based link integrity module may be redundant to a software driver type data-based link integrity module implemented in core memory and enabled or disabled as desired. Alternatively, the separately powered data-based link integrity module may be in lei of the otherwise conventional software driver implemented in core memory and permanently enabled.