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:
May. 19, 2009
Filed:
Aug. 31, 2005
Gary Steven Murdock, San Jose, CA (US);
Gary Steven Murdock, San Jose, CA (US);
Maxim Integrated Products, Inc., Sunnyvale, CA (US);
Abstract
Self-clocked two-level differential signaling methods and apparatus assuring both clock synchronization and ease of recovery of transmitted data. In accordance with the method, the data is encoded differentially on a differential signal that changes polarity at the end of each bit time. This allows clock recovery at the receiver simply by detection of the polarity change. The data is encoded, bit by bit, as exceeding a predetermined magnitude for a bit of a given state and as not exceeding the predetermined magnitude for the opposite state. Consequently data recovery is by way of a simple signal magnitude detection during a bit time, such as by a detection of signal magnitude a predetermined time. The apparatus does not require a phase locked loop in the receiver, thereby saving power and time to obtain synchronization. The method is conducive to varying bit time or duration, thereby reducing the peaks in the EMI radiation.