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:
Apr. 27, 2010
Filed:
Dec. 10, 2008
Applicants:
Michael P. Anthony, Andover, MA (US);
Lawrence J. Kushner, Andover, MA (US);
Inventors:
Michael P. Anthony, Andover, MA (US);
Lawrence J. Kushner, Andover, MA (US);
Assignee:
Kenet Incorporated, Wuborn, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
An integrated circuit memory cell and voltage ladder design that adapts techniques typically applied to Static Random Access Memory (SRAM) circuits to implement a compact array of analog Voltage Random Access Memory (VRAM) locations. The memory cells in the VRAM each store a digital value that controls a corresponding switch. The switch couple a particular voltage from a set of voltages generated by the ladder, to be output when that location is enabled. Multiple analog output voltages are provided by simply providing additional rows of cells.