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:
Nov. 19, 2013
Filed:
Dec. 19, 2008
Kyung Suk OH, Cupertino, CA (US);
John Wilson, Raleigh, NC (US);
Frederick A. Ware, Los Altos Hills, CA (US);
Woopoung Kim, Plano, TX (US);
Jade M. Kizer, Windsor, CO (US);
Brian S. Leibowitz, San Francisco, CA (US);
Lei Luo, Durham, NC (US);
John Cronan Eble, Chapel Hill, NC (US);
Kyung Suk Oh, Cupertino, CA (US);
John Wilson, Raleigh, NC (US);
Frederick A. Ware, Los Altos Hills, CA (US);
WooPoung Kim, Plano, TX (US);
Jade M. Kizer, Windsor, CO (US);
Brian S. Leibowitz, San Francisco, CA (US);
Lei Luo, Durham, NC (US);
John Cronan Eble, Chapel Hill, NC (US);
Rambus Inc., Sunnyvale, CA (US);
Abstract
Embodiments of a system that communicates bidirectional data between two devices via shared links is described. In this system, data is transmitted on the shared links by one of the devices using single-ended drivers, and corresponding symbols are received on the shared links by the other device using differential comparison circuits. The data may be encoded as a series of parallel codewords prior to transmission. Each shared link may communicate a respective symbol in each codeword, which can have one of two possible logical values (e.g., a logic 0 or a logic 1). The corresponding symbols received by the other device may comprise a parallel symbol set, and each of the differential comparison circuits may compare symbols received on pairs of the shared links. A decoder in the other device may decode a respective parallel symbol set from the outputs of the differential comparison circuits to recover the encoded data.