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:
Mar. 02, 2010
Filed:
Nov. 06, 2008
Applicant:
Ruediger Kuhn, Freising, DE;
Inventor:
Ruediger Kuhn, Freising, DE;
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention switches between a first clock signal (CLK) and a second clock signal (CLK). Each input signal is buffered by a corresponding tristate buffer (TBUF, TBUF). A multiplexer (MUX) receives the tristate buffer outputs and selects one clock signal in response to a multiplexer control signal (MUX_SEL). A control stage (CONTROL) received a clock selection signal (SEL) and provides multiplexer control signal (MUX_SEL). A change in multiplexer control signal (MUX_SEL) is triggered by a next edge of target clock (CLK) following a delay. This prevents glitches in the output signal.