Patent · US Expired

Frequency diversity system

US6188447A · kind A · utility

26Cited by

8References

8Claims

0Family size

Assignee

FUBA Automotive GmbH · DE

Inventors

Georg Rudolph · Seelze, DE
Michael Daginnus · Kirchlengern, DE
Ralf Bosche · Hannover, DE

Key dates

Filing date	Aug 26, 1997
Grant date	Feb 13, 2001
Priority date	—
Expiry date	Aug 26, 2017

Classification

Technology area (CPC H)Electricity
CPC primaryH04B7/12
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A frequency diversity system for use in mobile reception of television and RF signals in the meter or decimeter wavelength, such as for use with a mobile television having a first receiver, an additional receiver and a control and analysis circuit. The additional receiver detects all incoming frequencies corresponding to a preset program and switches the main receiver to an incoming frequency of a higher quality. The receiver is able to identify the frequencies corresponding to the desired program through a transmitter identification code, which is added to each signal. This code is usually a VPS identification signal. The control and analysis circuit compares the incoming frequencies to the frequency of the signal transmitted by the television receiver to determine the highest quality signal. In order to accelerate the process, the system processes local position coordinates of the television so that the frequencies analyzed are only those expected within the coverage area of the television.

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