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公开(公告)号：DE102004013217A1
公开(公告)日：2005-10-13
申请号：DE102004013217
申请日：2004-03-17
Applicant: INFINEON TECHNOLOGIES AG
Inventor： GREWING CHRISTIAN , FRIEDRICH MARTIN , WINTERBERG KAY , WAASEN STEFAN VAN , WIESBAUER ANDREAS , SANDNER CHRISTOPH , LI PUMA GUISEPPE
Abstract: Programmable difference amplifier (1) has first load (7), first transistor (8) with a first controllable extent and a first gate connection (9) and a first adjustable current source (10). The first load, the first controllable extent and the first adjustable current source are connected in series between first and second supply voltage connections (VDD,VSS), with a second load (11), a second transistor (12), which has a second controllable extent and a second gate connection (13), and a second adjustable current source (14). The second load, the second controllable extent and the second controllable current source are connected in series between the first and second supply voltage connections. At the gate connections (9,13) a differential input signal (IN,INX) is applied. At a first conduit node (16) between the first load and the first controllable extent and at a second conduit node (15) between the second load and the second controllable extent an amplified differential output signal (OUT,OUTX) is applicable. A counter coupling device (17) for the adjustment of the amplification of the differential amplifier has a programmable resistance value and is connected between third and fourth conduit nodes (18,19). The third conduit node is between the first controllable extent of the first transistor and the first adjustable current source. The fourth conduit node is between the controllable extent of the second transistor and the second adjustable current source. To the counter coupling device the programming signal (CTRL) is applied.
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公开(公告)号：DE102004021153B3
公开(公告)日：2005-09-15
申请号：DE102004021153
申请日：2004-04-29
Applicant: INFINEON TECHNOLOGIES AG
Inventor： GREWING CHRISTIAN , FRIEDRICH MARTIN , WINTERBERG KAY , WAASEN STEFAN VAN , LI PUMA GIUSEPPE , WIESBAUER ANDREAS , SANDNER CHRISTOPH
Abstract: The signal amplifier (8) is tunable so as to operate over a number of narrow channels or signal bands. It has two inputs (15- 1,15-2) connected to bandpass switching networks (16-1,16-2). The networks are connected (17-1,17-2) to NMOSTs (18.1,18.2). Frequency control signals (KW) are transmitted to the bandpass switching networks via connections (11- 1,11-2) leading from the frequency control circuit. The NMOSTs are connected to a cascode stage (23). A switch control logic circuit (34) receives control signals and is connected to groups of switches (31a- 1...31a-N) and (31b-1...31b-N), switching capacitors (30a-1...30a-N) and (30b-1...30b-N) in and out of circuit.
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公开(公告)号：AT284582T
公开(公告)日：2004-12-15
申请号：AT02750781
申请日：2002-06-07
Applicant: INFINEON TECHNOLOGIES AG
Inventor： GREWING CHRISTIAN , HAMMES MARKUS , HANKE ANDRE , VAN WAASEN STEFAN
Abstract: The invention relates to a demodulator and also a demodulation method and enables a reliable demodulation even when the intermediate frequency range overlaps the range of the data frequencies of the signal. For this purpose, a rapidly oscillating output signal is generated from the in-phase signal and also the quadrature signal, the sign of which output signal varies in a manner dependent on the product of the signs of the in-phase signal and of the quadrature signal. Either an XOR gate or a multiplier stage may be used in order to generate an output signal of this type.
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公开(公告)号：DE10233526A1
公开(公告)日：2004-02-12
申请号：DE10233526
申请日：2002-07-23
Applicant: INFINEON TECHNOLOGIES AG
Inventor： BRASS ECKHARD , OEHM JUERGEN , GREWING CHRISTIAN
Abstract: A band gap reference circuit comprises two current paths (1-5) with a diode (3) in one and a diode (5) and resistance (4) in the other and reading nodes (15,16) and connected differential amplifiers (8-11) fed by a reference current (IREF) adjustable through a resistance (12) against a reference potential (6).
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公开(公告)号：DE10147963A1
公开(公告)日：2003-04-30
申请号：DE10147963
申请日：2001-09-28
Applicant: INFINEON TECHNOLOGIES AG
Inventor： HAMMES MARKUS , LI PUMA GIUSEPPE , HANKE ANDRE , GREWING CHRISTIAN
Abstract: A PLL circuit (1) is tuned to a first frequency (F1) by using a first digital modulation signal (6) and is subsequently tuned to a second frequency (F2) by using a second digital modulation signal (6'). A differential signal (9'), which is characteristic of the change in voltage of a control signal (SS) of the VCO (14), said change being effected by the modulation signals, is compared with a comparison signal (8') that is characteristic of the analogous modulation amplitude, and the analogous modulation amplitude is changed in order to eliminate a variation determined during the comparison.
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Patent Agency Ranking
公开(公告)号：DE102008032997B9
公开(公告)日：2013-01-10
申请号：DE102008032997
申请日：2008-07-14
Applicant: INFINEON TECHNOLOGIES AG
Inventor： GREWING CHRISTIAN , VAN WAASEN STEFAN
IPC: H04M1/73
Abstract: Ein Energiesteuersystem (200) wird beschrieben, welches einen Strom von getrennten Schaltkreisen (210, 230) einer mobilen Vorrichtung wiederverwendet. Bei einer Ausführungsform können die getrennten Schaltkreise (oder „Abschnitte”) (210, 230) in Reihe (in Bezug auf die Energieversorgung) derart „gestapelt” werden, dass eine Energie effizienter verwendet wird. Die Energie kann effizienter verwendet werden, indem ein erster Abschnitt (210) ausgestaltet ist, einen Strom wieder zu verwenden, welcher Energie für einen zweiten Abschnitt (230) bereitstellt. Eine Energiesteuereinheit (250) kann verwendet werden, um Regler (220, 240) zu steuern.
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公开(公告)号：DE102008032997B4
公开(公告)日：2011-11-17
申请号：DE102008032997
申请日：2008-07-14
Applicant: INFINEON TECHNOLOGIES AG
Inventor： GREWING CHRISTIAN , VAN WAASEN STEFAN
IPC: H04M1/73
Abstract: Ein Energiesteuersystem (200) wird beschrieben, welches einen Strom von getrennten Schaltkreisen (210, 230) einer mobilen Vorrichtung wiederverwendet. Bei einer Ausführungsform können die getrennten Schaltkreise (oder „Abschnitte”) (210, 230) in Reihe (in Bezug auf die Energieversorgung) derart „gestapelt” werden, dass eine Energie effizienter verwendet wird. Die Energie kann effizienter verwendet werden, indem ein erster Abschnitt (210) ausgestaltet ist, einen Strom wieder zu verwenden, welcher Energie für einen zweiten Abschnitt (230) bereitstellt. Eine Energiesteuereinheit (250) kann verwendet werden, um Regler (220, 240) zu steuern.
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公开(公告)号：DE50204543D1
公开(公告)日：2005-11-17
申请号：DE50204543
申请日：2002-05-10
Applicant: INFINEON TECHNOLOGIES AG
Inventor： GREWING CHRISTIAN , HANKE ANDRE , VAN WAASEN STEFAN
Abstract: A circuit configuration for the frequency conversion of an oscillator frequency into a carrier frequency includes a mixer, to which a signal with the oscillator frequency can be fed unchanged in its frequency at an input and can be fed divided-down in its frequency at a second input. The frequency division is, in this case, preferably a frequency division by four. The present circuit configuration has a particularly small area requirement, a particularly low current consumption, and is largely independent of fabrication tolerances. The present circuit configuration can be used with preference in mobile radio transceivers.
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公开(公告)号：DE102004019366A1
公开(公告)日：2005-11-17
申请号：DE102004019366
申请日：2004-04-21
Applicant: INFINEON TECHNOLOGIES AG
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公开(公告)号：DE10360470A1
公开(公告)日：2005-07-21
申请号：DE10360470
申请日：2003-12-22
Applicant: INFINEON TECHNOLOGIES AG
Inventor： LI PUMA GIUSEPPE , WIESBAUER ANDREAS , SANDNER CHRISTOPH , VAN WAASEN STEFAN , GREWING CHRISTIAN , FRIEDRICH MARTIN , WINTERBERG KAY
Abstract: A method and an arrangement for processing a received signal which comprises phase-shift modulated or amplitude-quadrature modulated part-signals which are transmitted in a plurality of different frequency bands, wherein the received signal is processed in a plurality of stages in succession, by multiplying all the input signals to each of the stages by two mutually orthogonal signals in each case to form two intermediate signals in each case, wherein the intermediate signals from one stage in each case act as the input signals to whichever is the succeeding stage in the particular case and the received signal acts as the input signal to the first stage, and wherein an in-phase and/or an quadrature component of the individual part-signals in the different frequency bands are determined from the intermediate signals from the last stage. Parallel, simultaneous reception of a plurality of frequency bands can be implemented relatively easily in this way.
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