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. 15, 2013
Filed:
Sep. 27, 2011
BO Tang, Sunnyvale, CA (US);
Andrew J. Demas, Los Altos, CA (US);
Bo Tang, Sunnyvale, CA (US);
Andrew J. Demas, Los Altos, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Circuits and methods for full rate data reception and transmission using half-frequency clock signals are disclosed. In one embodiment, a flop circuit includes a data input, a data output, and a clock input. The clock signal has a first frequency, while the flop circuit is configured to output data at a rate corresponding to a second frequency. In one embodiment, the second frequency is twice the first frequency. The flop circuit is configured to transmit a first data bit responsive to a first edge (e.g., a rising edge) of the clock signal and a second data bit responsive to a second edge (e.g., a falling edge) of the clock signal that is the next edge following the first edge. Accordingly, the flop circuit may effectively operate at the second frequency utilizing the clock signal at the first lower frequency.