The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 18, 2002
Filed:
Jun. 25, 1998
Petrus Martinus Stroet, Sunnyvale, CA (US);
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A Time Division Multiple Access (TDMA) radio communication device is arranged for receiving radio signalling and information data in receive time slots. The radio communication device includes receiver circuitry for the filtering of received radio signals using a filter. The filter includes a tunable filter part and a tunable oscillator or resonator part, operatively connected such that control signals operative for the tuning of the oscillator part are also operative for the tuning of the filter part. A detector for the detection of the oscillator operation, a reference source and a comparator are arranged to provide the tuning control signals for the oscillator to operate in accordance with the reference source. The filter includes storage for storing the tuning control signals if said filter is made inoperative and for starting up the filter by using the stored tuning control signals.