System and method for reducing spurious emissions in a wireless communication device including a testing apparatus
US7653356B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2006 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Oct 15, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/0085
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.