Patents by Inventor Johann Traub
Johann Traub has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8098096Abstract: An embodiment provides a device for generating an output signal as a function of an input signal, wherein a plurality of circuit sections generate partial signals and the output signal is composed from the partial signals.Type: GrantFiled: April 28, 2009Date of Patent: January 17, 2012Assignee: Infineon Technologies AGInventor: Johann Traub
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Publication number: 20090273400Abstract: An embodiment provides a device for generating an output signal as a function of an input signal, wherein a plurality of circuit sections generate partial signals and the output signal is composed from the partial signals.Type: ApplicationFiled: April 28, 2009Publication date: November 5, 2009Applicant: Infineon Technologies AGInventor: Johann Traub
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Patent number: 7348846Abstract: The present invention relates to an amplifier arrangement having a plurality of amplifier stages that form a series circuit. Each amplifier stage comprises a current mirror, the translation ratio of which defines the gain of the amplifier stage. Moreover, a current coupling-out element is provided in each amplifier stage, a partial current being output at said element, and the partial currents are added together in a summation element. An RSSI signal associated with the summed currents is provided at the output of the summation element. The RSSI amplifier arrangement provides constant and thermostable signal amplification, low sensitivity to overvoltages, and exhibits a low current requirement and good radio frequency properties.Type: GrantFiled: August 11, 2004Date of Patent: March 25, 2008Assignee: Infineon Technologies AGInventor: Johann Traub
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Patent number: 7102435Abstract: An amplifier arrangement and also a control loop having the amplifier arrangement are specified, wherein the amplifier arrangement is based on a Gilbert multiplier. Connected in parallel in this case with one of the transistors of the differential amplifier cells is an additional transistor, at which it is possible to tap off a signal that is proportional to the gain factor. Processing this signal in a suitable manner, for example in a control loop, makes it possible to compensate for temperature and manufacturing fluctuations and also to obtain a highly linear characteristic curve having a gain factor which can be set in a stable manner. In addition, the structure shown is current-saving and can be used, in particular, for application in radio frequency technology as an amplifier having a variable gain factor (VGA).Type: GrantFiled: July 16, 2004Date of Patent: September 5, 2006Assignee: Infineon Technologies AGInventors: Martin Bosch, Johann Traub
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Publication number: 20050062537Abstract: The present invention relates to an amplifier arrangement having a plurality of amplifier stages that form a series circuit. Each amplifier stage comprises a current mirror, the translation ratio of which defines the gain of the amplifier stage. Moreover, a current coupling-out element is provided in each amplifier stage, a partial current being output at said element, and the partial currents are added together in a summation element. An RSSI signal associated with the summed currents is provided at the output of the summation element. The RSSI amplifier arrangement provides constant and thermostable signal amplification, low sensitivity to overvoltages, and exhibits a low current requirement and good radio frequency properties.Type: ApplicationFiled: August 11, 2004Publication date: March 24, 2005Inventor: Johann Traub
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Publication number: 20050052239Abstract: An amplifier arrangement and also a control loop having the amplifier arrangement are specified, wherein the amplifier arrangement is based on a Gilbert multiplier. Connected in parallel in this case with one of the transistors of the differential amplifier cells is an additional transistor, at which it is possible to tap off a signal that is proportional to the gain factor. Processing this signal in a suitable manner, for example in a control loop, makes it possible to compensate for temperature and manufacturing fluctuations and also to obtain a highly linear characteristic curve having a gain factor which can be set in a stable manner. In addition, the structure shown is current-saving and can be used, in particular, for application in radio frequency technology as an amplifier having a variable gain factor (VGA).Type: ApplicationFiled: July 16, 2004Publication date: March 10, 2005Inventors: Martin Bosch, Johann Traub
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Patent number: 6806785Abstract: An oscillator circuit includes an oscillator core having two capacitances, two inductors designed as bonding wires, and a de-attenuation amplifier coupled to the oscillator core. The inductors of the oscillator core, which is preferably embodied to be tunable, are connected to a leadframe by a respective terminal. A chip including the oscillator core and the deattentuation amplifier is configured on the leadframe. A resonance transformation circuit is preferably provided for coupling the oscillator core and the de-attenuation amplifier. The oscillator can be used in a mobile radio when there are high requirements with regard to the phase noise.Type: GrantFiled: May 19, 2003Date of Patent: October 19, 2004Assignee: Infineon Technologies AGInventor: Johann Traub
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Patent number: 6661301Abstract: An oscillator circuit with connectable capacitance makes it possible for the oscillator to change over between at least two frequencies. A switching unit is provided for the changeover. The switching unit has a first switch which is connected between the switchable capacitances, and also further switches, which are connected with respect to a supply voltage terminal. Compared with conventional oscillators that can be changed over, the novel circuit provides for the advantage that a particularly low forward resistance takes effect in the switched-on state of the connectable capacitances and particularly small parasitic capacitances nevertheless take effect in the switched-off state. The oscillator circuit can be implemented with a particularly small chip area since the switches can be integrated in a common transistor structure with a common control terminal. The oscillator circuit is particularly suitable for mobile radio applications.Type: GrantFiled: December 10, 2001Date of Patent: December 9, 2003Assignee: Infineon Technologies AGInventor: Johann Traub
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Publication number: 20030189468Abstract: An oscillator circuit includes an oscillator core having two capacitances, two inductors designed as bonding wires, and a de-attenuation amplifier coupled to the oscillator core. The inductors of the oscillator core, which is preferably embodied to be tunable, are connected to a leadframe by a respective terminal. A chip including the oscillator core and the deattentuation amplifier is configured on the leadframe. A resonance transformation circuit is preferably provided for coupling the oscillator core and the de-attenuation amplifier. The oscillator can be used in a mobile radio when there are high requirements with regard to the phase noise.Type: ApplicationFiled: May 19, 2003Publication date: October 9, 2003Inventor: Johann Traub
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Patent number: 6606008Abstract: An oscillator circuit is described and has an oscillator core with at least one inductance and, connected thereto, a first and second capacitance. A deattenuator is coupled to the oscillator core and has two transistors, which are cross-coupled to one another in a non-direct-electrical coupling. The respective load terminal of a respective transistor is directly connected to a reference-ground potential terminal. The non-direct-electrical, for example inductive, coupling of the transistors in combination with the transistors directly connected to ground enables a greater modulation capability and also a smaller phase noise of the oscillator circuit. In this case, the transistors are operated as current switches. In preferred embodiments, the oscillator circuit has a regulating circuit for a bias voltage and an operating-current setting.Type: GrantFiled: November 19, 2001Date of Patent: August 12, 2003Assignee: Infineon Technologies AGInventor: Johann Traub
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Publication number: 20020070815Abstract: An oscillator circuit with connectable capacitance makes it possible for the oscillator to change over between at least two frequencies. A switching unit is provided for the changeover. The switching unit has a first switch which is connected between the switchable capacitances, and also further switches, which are connected with respect to a supply voltage terminal. Compared with conventional oscillators that can be changed over, the novel circuit provides for the advantage that a particularly low forward resistance takes effect in the switched-on state of the connectable capacitances and particularly small parasitic capacitances nevertheless take effect in the switched-off state. The oscillator circuit can be implemented with a particularly small chip area since the switches can be integrated in a common transistor structure with a common control terminal. The oscillator circuit is particularly suitable for mobile radio applications.Type: ApplicationFiled: December 10, 2001Publication date: June 13, 2002Inventor: Johann Traub
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Publication number: 20020060612Abstract: An oscillator circuit is described and has an oscillator core with at least one inductance and, connected thereto, a first and second capacitance. A deattenuator is coupled to the oscillator core and has two transistors, which are cross-coupled to one another in a non-direct-electrical coupling. The respective load terminal of a respective transistor is directly connected to a reference-ground potential terminal. The non-direct-electrical, for example inductive, coupling of the transistors in combination with the transistors directly connected to ground enables a greater modulation capability and also a smaller phase noise of the oscillator circuit. In this case, the transistors are operated as current switches. In preferred embodiments, the oscillator circuit has a regulating circuit for a bias voltage and an operating-current setting.Type: ApplicationFiled: November 19, 2001Publication date: May 23, 2002Inventor: Johann Traub
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Patent number: 5530391Abstract: A filter that has a resonator operated in series resonance and a two-pole terminal resonator circuit with a resonator whose electric conductance can be divided into a useful component and a parasitic component. A first differential stage actuated by a signal source and having two active elements whose ground connections are each linked to a respective current source and to a respective connection of the two-terminal resonator. A compensation circuit having two connections and which simulates the parasitic component of the resonator electric conductance is connected to a second differential stage which actuated by the signal source, is of the same type as the first differential stage, and has two active elements whose ground connections are each linked to a respective current source and to a respective connection of the compensation circuit. An evaluation circuit is linked to the two mutually reversed, i.e. connected in phase opposition, output connections of the two differential stages.Type: GrantFiled: March 2, 1994Date of Patent: June 25, 1996Assignee: Temic Telefunken microelectronic GmbHInventors: Rolf Bohme, Johann Burkhart, Johann Traub, Konrad Hirsch
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Patent number: 5283532Abstract: A receiver array in accordance with the reception principle of synchronous demodulation, in which a controllable oscillator array is pre-synchronized to a set value for the oscillator frequency by a digital first control circuit having a reference frequency source during a pre-synchronization phase, and a heterodyne signal derived from the oscillator frequency is then synchronized with phase locking to the received useful signal by switching the oscillator control input to an analog second control circuit.Type: GrantFiled: June 5, 1992Date of Patent: February 1, 1994Assignee: Temic Telefunken Microelectronic GmbHInventors: Johann Burkhart, Johann Traub, Rolf Bohme