Mobile wireless communications device with reduced microphone noise from radio frequency communications circuitry
US7398072B2 · kind B2 · utility
15Cited by
17References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2005 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Aug 6, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49005
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A mobile wireless communications device includes a housing and circuit board in the housing and having radio frequency (RF) circuitry and a power amplifier and microphone mounted thereon. An antenna is carried within the housing and operative with the RF circuitry. An RF shield surrounds and isolates the microphone from the RF circuitry, power amplifier and antenna and shields the microphone from radiated energy generated from the RF circuitry, antenna or power amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.