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:
Jun. 27, 2023
Filed:
Jun. 22, 2021
Applicant:
Rambus Inc., San Jose, CA (US);
Inventors:
John W. Poulton, Chapel Hill, NC (US);
Frederick A. Ware, Los Altos Hills, CA (US);
Carl W. Werner, Los Gatos, CA (US);
Assignee:
Rambus Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 3/56 (2006.01); H04L 25/02 (2006.01); G06F 13/40 (2006.01); H03F 3/24 (2006.01); H04B 3/54 (2006.01); H04B 10/50 (2013.01); H04B 10/40 (2013.01); H04B 10/073 (2013.01); H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
H04B 3/56 (2013.01); G06F 13/4072 (2013.01); H03F 3/24 (2013.01); H04B 3/54 (2013.01); H04L 25/0272 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48227 (2013.01); H01L 2224/49109 (2013.01); H01L 2924/13091 (2013.01); H01L 2924/15311 (2013.01); H04B 10/0731 (2013.01); H04B 10/40 (2013.01); H04B 10/50 (2013.01); H04B 2001/0408 (2013.01);
Abstract
A single-ended data transmission system transmits a signal having a signal voltage that is referenced to a power supply voltage and that swings above and below the power supply voltage. The power supply voltage is coupled to a power supply rail that also serves as a signal return path. The signal voltage is derived from two signal supply voltages generated by a pair of charge pumps that draw substantially same amount of current from a power supply.