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:
Dec. 06, 2005
Filed:
Mar. 16, 1999
Ernst Eberlein, Grossenseebach, DE;
Josef Bernhard, Erlangen, DE;
Christian Paul, Erlangen, DE;
Thomas Von Der Gruen, Kleinsendelbach, DE;
Ernst Eberlein, Grossenseebach, DE;
Josef Bernhard, Erlangen, DE;
Christian Paul, Erlangen, DE;
Thomas Von Der Gruen, Kleinsendelbach, DE;
Abstract
A repeater system for receiving a modulated input signal and for transmitting a modulated output signal comprising a clock oscillator for providing a repeater system clock, a demodulator for demodulating an input signal and a modulator for modulating the demodulated signal to obtain a modulated signal. The demodulator comprises a first mixer, a first controllable oscillator and a feedback circuit, the first controllable oscillator being controlled by a first control value such that the frequency of the demodulated signal approaches a desired value. The modulator comprises a second mixer and a second controllable oscillator, the second controllable oscillator being controlled by a second control value such that the modulated output signal has a predetermined output frequency. A controller derives the second control value.