Patent US1975987A successfully refreshed from Google Patents.
Patent EP0199058A2 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0199058A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method and circuit arrangement for the reception of radio waves

Assignee: Blaupunkt Werke GmbH
•
Filing: 1986-03-12
•
Granted: —
•
Expires: 2006-03-12
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from German Es wird ein Verfahren zur Verbesserung des Empfangs von Radiowellen, insbesondere im VHF-und UHF-Bereich, mittels mehrerer Antennen vorgeschlagen, bei dem das von jeder Antenne empfangene Signal mit einem im Empfänger erzeugten Träger gemischt wird. Die somit entstandenen Mischsignale werden mit steuerbarer Phasenlage zueinander einem gemeinsamen ZF-Verstärker zugeführt, dessen Ausgangssignal ausgewertet wird. Entsprechend der Auswertung wird die Phasenlage der Mischsignale zueinander gesteuert. Bei Schaltungsanordnungen zur Durchführung des erfindungsgemäßen Verfahrens werden Mischsignale über steuerbare Phasendrehglieder geleitet oder die Oszillatorsignale werden gegeneinander phasenverschoben. A method for improving the reception of radio waves, in particular in the VHF and UHF range, by means of several antennas is proposed, in which the signal received by each antenna is mixed with a carrier generated in the receiver. The resulting mixed signals are fed to a common IF amplifier with controllable phase relationship, the output signal of which is evaluated. The phase relationship of the mixed signals to one another is controlled in accordance with the evaluation. In circuit arrangements for carrying out the method according to the invention, mixed signals are passed via controllable phase rotators or the oscillator signals are phase-shifted with respect to one another.

Inventors

  • 👤 Werner Dipl.-Ing. Henze
  • 👤 Harald Dr.-Ing. Bochmann

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 22:28
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/08; H04B7/0837; H04B7/084; H04B7/0842; H04B7/0848; H04B7/0851; H04B7/0857

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag