Patent · US Expired

Antenna and frequency diversity receiving apparatus

US7277686B2 · kind B2 · utility

9Cited by

13References

17Claims

0Family size

Assignee

HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH · DE

Inventors

Stefan Gierl · Karlsruhe, DE
Joachim Wietzke · Hildesheim, DE
Erich Geiger · St. Georgen im Schwarzwald, DE

Key dates

Filing date	Jul 12, 2004
Grant date	Oct 2, 2007
Priority date	—
Expiry date	Jul 11, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH04B7/12
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

An apparatus determines an optimal antenna and frequency combination by selecting the optimal antenna from among a plurality, N, of antennas associated with a receiver and also selects the optimal frequency from among a plurality, M, of alternative receiving frequencies transmitted from a transmitter. This is achieved by determining all N×M possible antenna/frequency combinations, by determining the received signal quality at each combination, by comparing the N×M received signal qualities, and by selecting the one antenna/frequency combination having the optimal received signal quality.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.