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. 05, 2009
Filed:
Jan. 26, 2007
Applicant:
Brett Forejt, Plano, TX (US);
Inventor:
Brett Forejt, Plano, TX (US);
Assignee:
Texas Insturments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
A new analog-to-digital (ADC) circuit and architecture and the corresponding method of implementation are provided. The analog input signal is converted into a modulated pulse stream such as by a pulse-width-modulation scheme. The time-duration width of the pulses are measured by a TDC (time-to-digital converter) and converted to a digital binary representation that is directly correlated with the voltage amplitude of the analog input signal. The circuit implementation is substantially free of switches and circuit issues such as associated with sigma-delta and switched-capacitor techniques for ADC's.