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:
Jan. 26, 2010
Filed:
Jan. 27, 2006
Donald A. Kerth, Austin, TX (US);
James Maligeorgos, Austin, TX (US);
Xiaochuan Guo, Austin, TX (US);
Augusto Manuel Marques, Austin, TX (US);
Donald A. Kerth, Austin, TX (US);
James Maligeorgos, Austin, TX (US);
Xiaochuan Guo, Austin, TX (US);
Augusto Manuel Marques, Austin, TX (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
A wireless communication device is disclosed wherein isolation buffers couple to respective active circuits or stages of the device to convey test information regarding such active circuits to a test data line from which status information may be collected. The communication device operates in two modes, namely a normal operational mode wherein the isolation buffers effectively short spurious emissions from the active circuits to a ground, and a test mode wherein the isolation buffers may convey test information from a selected active circuit to the test data line. The isolation buffers prevent spurious emissions from escaping the active circuits to which they are coupled and prevent spurious emissions from traveling from active circuit to active circuit over the test data line throughout the wireless device.