Inventor: Giuseppe Li Puma

Address: Bochum, DE
No. of patents: 22
Last patent issue date: 11/20/2012

Number	Title	Issue Date
8315575	Integrated circuit for mobile radio transceivers The invention relates to an integrated circuit in a mobile radio transceiver. This circuit includes a radio-frequency assembly for producing a mobile radio signal and a modulator for converting transmission data into an analogue, modulated transmission signal which ...	11/20/2012
8094752	Ultra-wideband signal amplifier Amplifier for an ultra-wideband (UWB) signal receiver having a signal input (15) for receiving an ultra-wideband signal which is sent by a transmitter (1) and which is transmitted in a sequence of transmission channels (Ki) (which each have ...	01/10/2012
8053890	Microchip assembly including an inductor and fabrication method An assembly includes a substrate, a chip mounted on the substrate, a voltage controlled oscillator circuit including an inductor and further circuit elements. The inductor is mounted on or in the substrate, and the further circuit elements are mounted on or in the c...	11/08/2011
7835457	Demodulating a signal having multiple frequency bands 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 plurali...	11/16/2010
7817970	Transmitting/receiving device having a polar modulator with variable predistortion The transmitting/receiving device has a polar modulator with a variable predistorter (11, 12) and an amplifier (8) which can be modulated, a reception path (25) which can be operated both during conventional reception and for the purposes of adj...	10/19/2010
7777578	Oscillator circuit, in particular for mobile radio An oscillator is disclosed that is tunable to discrete values, and includes a tuning element which can be connected via a switching device. A rectifier circuit is connected to the output of the oscillator and forms a clock signal from the oscillator signal. The osci...	08/17/2010
7643572	Modulator with controlled transmission bandwidth, and a corresponding method for controlling the transmission bandwidth The modulator according to the invention is based on the modulation of a PLL, with the bandwidth of the PLL being variable. The modulator also has a means (14, 15) for determination of a signal (φr(kTs); FDEV) which is characteristic of...	01/05/2010
7570930	Amplifier arrangement, polar transmitter having the amplifier arrangement and method for amplifying signals An amplifier arrangement contains a first signal input for supplying a carrier signal, a second signal input for supplying an amplitude modulation word and an amplifier stage. The amplifier stage is connected to a reference potential connection and, by means of a co...	08/04/2009
7545885	Compensation for the carrier frequency offset in a receiving apparatus, which is designed for a plurality of modulation types, in a mobile communications system The present invention relates to a receiving apparatus for a mobile communications system which can be modulated using different modulation types at the transmitter end. According to one embodiment of the invention, in the middle of a data burst of a Bluetooth commu...	06/09/2009
7492295	Self-adapting tracking analogue-to-digital converter and RF transmitter A self-adapting analogue-to-digital converter includes a forward path with a voltage divider coupled to a digital integrator. In a feedback path, a scaler is connected to a digital-to-analogue converter. A control unit provides control signals for the voltage divide...	02/17/2009
7453325	Single point modulator having a PLL circuit A single-point modulator (1) has a PLL circuit (2) and a programmable frequency divider (7) whose control connection is connected to a circuit branch for injecting a digital modulation signal (15) which is arranged in the feedback path of...	11/18/2008
7430265	Circuit arrangement provided with a phase-locked loop and transmitter-receiver with said circuit arrangement The invention specifies a circuit arrangement with a phase locked loop (1), which can be used as a mobile radio transmitter, in particular. The reference frequency for the PLL (1), which is provided by means of the source (3), is multiplied by a...	09/30/2008
7427903	Polar modulator and a use thereof A polar modulator has a low AM-AM and AM-PM distortion comprises a phase locked loop. The phase locked loop is designed for outputting a high-frequency signal with a frequency derived from a phase modulation signal at an actuating input of the phase locked loop. A f...	09/23/2008
7385404	Arrangement and method for testing a capacitance array in an integrated circuit An arrangement for testing a plurality of capacitances in a capacitance array of an integrated circuit includes a power supply and a means for cyclically charging and discharging at least one of the capacitances. In this arrangement, the cycle frequency is dependent...	06/10/2008
7289005	Polar modulator and a method for modulation of a signal A polar modulator contains a phase locked loop which is designed to emit a radio-frequency signal at one frequency to one output, with the frequency being derived from the reference signal and from a phase modulation signal at a control input of the phase locked loo...	10/30/2007
7283002	Phase locked loop with a modulator The invention provides a phase locked loop having a modulator which is based on a ΣΔ fractional N phase locked loop. In the forward path of the PLL, the output of the oscillator has an additional frequency divider which provides the output frequency of the PLL in ...	10/16/2007
7280056	Sigma-delta converter and use thereof A sigma-delta converter has a signal input for receiving a data word. A clock signal input is designed to supply a clock signal. The sigma-delta converter includes a first clocked-operation accumulator stage whose input side is connected to the signal input, and at ...	10/09/2007
7276978	Phase locked loop comprising a sigma-delta modulator The invention is directed to a phase locked loop with a ΣΔ modulator. A multimodulus divider in the feedback path of the PLL is actuated by the ΣΔ modulator. The latter has a design which can be described by a complex transfer function H(s) in the Laplace plane,...	10/02/2007
7149498	Detecting usable frequency channels by exploiting complex polyphase filter operation A circuit arrangement for detecting a usable frequency channel includes first and second devices for performing frequency conversion. The first and second frequency conversion devices have respective local oscillator inputs to which respective local oscillator signa...	12/12/2006
7123101	Phase locked loop comprising a ΣΔ modulator The invention is directed to a phase locked loop with a ΣΔ modulator. A multimodulus divider in the feedback path of the PLL is actuated by the ΣΔ modulator. The latter has a design which can be described by a complex transfer function H(s) in the Laplace plane,...	10/17/2006
7106141	Phase locked loop The phase locked loop according to the invention has an adjustable charge pump (2) which is intended to generate a control voltage (UVCO). A voltage-controlled oscillator (4) and an evaluation unit (14) are connected downstream of said charge pu...	09/12/2006
6995604	Current source circuit for generating a low-noise current and method of operating the current source circuit A current source circuit for generating a low-noise current has a current mirror circuit with a first and a second transistor. The current mirror circuit contains a capacitor connected between a source connection and a gate connection of the second transistor. The c...	02/07/2006

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Inventor: Giuseppe Li Puma