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:
Sep. 21, 2004
Filed:
Sep. 28, 2000
Andrew Mills, Coto De Caza, CA (US);
Ralph Andersson, Grass Valley, CA (US);
TDK Semiconductor Corporation, Tustin, CA (US);
Abstract
A link-suspend operation between network nodes in a point-to-point data communications link is presented. Individual network links will have a full power operational mode for supporting full high-bandwidth communication, and a low power “link-suspend” (LS) operational mode for temporary operation when only limited communication is occurring. The communications link is maintained, while cycling transmitter power on and off during idle periods with a duty cycle that substantially reduces physical layer device (PHY) power, using LSPs. LS mode may be negotiated by advertising capabilities between two network devices. Thus, PHYs at either end of a link can notify the other of the capability to support a LS mode of operation and can negotiate parameters for communications using the LS mode. Further, transmitting and receiving continuous idles, valid data frames, and Wake-on LAN (WOL) packets is supported. Similarly, notification of “wake-up” schemes and detection of suspended WOL network device is supported.