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. 07, 2014
Filed:
Jan. 10, 2012
Lee Harrell House, San Jose, CA (US);
Ming-hsin Kuo, Milpitas, CA (US);
Dileep Sivasankaran, Fremont, CA (US);
Frank S. Madren, Los Gatos, CA (US);
Lee Harrell House, San Jose, CA (US);
Ming-Hsin Kuo, Milpitas, CA (US);
Dileep Sivasankaran, Fremont, CA (US);
Frank S. Madren, Los Gatos, CA (US);
Garrettcom, Inc., Fremont, CA (US);
Abstract
Methods and apparatus that may be used to provide timestamps to physical layer devices are provided. One method includes obtaining a time value from a clock associated with a physical layer device that is communicatively coupled to a primary data packet switch. The method further includes adding a processing time to the time value to generate a timestamp and transmitting the timestamp to a multiplexer circuit. The method further includes writing the timestamp in parallel from the multiplexer circuit to a plurality of external physical layer devices that are communicatively coupled to a secondary data packet switch and are located external to a housing of the secondary data packet switch.