Patents by Inventor Jan Mulder

Jan Mulder 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).

  • Patent number: 8401502
    Abstract: Provided is a method and system for controlling current characteristics in a transceiver having a transmitter. The transmitter includes a plurality of current cells. Each cell is configurable for operating in different modes. The method includes determining a first probability associated with transmitting data at a particular symbolic level and determining a second probability associated with each cell being used during a transmission at the particular symbolic level. Next, one of the modes for each cell is selected in accordance with anticipated performance requirements. An average current of the transmitter is then calculated based upon the determined first and second probabilities and the selected modes.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: March 19, 2013
    Assignee: Broadcom Corporation
    Inventors: Yee Ling Cheung, Kevin T. Chan, Jan Mulder
  • Patent number: 8253470
    Abstract: An apparatus, a method, and a system are provided to calibrate an offset in an amplifier. The apparatus can include an amplifier, a voltage control unit, a comparator, and a processing unit. The amplifier can have four terminals: a positive differential input (VIN+), a negative differential input (VIN?), a positive differential output (VOUT+), and a negative differential output (VOUT?). The voltage control unit can be configured to adjust a first voltage on VOUT+ and a second voltage on VOUT?. The comparator can be configured to compare the first voltage on VOUT+ to the second voltage on VOUT? when VIN+ and VIN? are coupled to a common voltage. Further, the processing unit can be configured to provide a control signal to the voltage control unit based on the comparison of the first and second voltages on VOUT+ and VOUT?, respectively.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: August 28, 2012
    Assignee: Broadcom Corporation
    Inventor: Jan Mulder
  • Publication number: 20120032722
    Abstract: An apparatus, a method, and a system are provided to calibrate an offset in an amplifier. The apparatus can include an amplifier, a voltage control unit, a comparator, and a processing unit. The amplifier can have four terminals: a positive differential input (VIN+), a negative differential input (VIN?), a positive differential output (VOUT+), and a negative differential output (VOUT?). The voltage control unit can be configured to adjust a first voltage on VOUT+ and a second voltage on VOUT?. The comparator can be configured to compare the first voltage on VOUT+ to the second voltage on VOUT? when VIN+ and VIN? are coupled to a common voltage. Further, the processing unit can be configured to provide a control signal to the voltage control unit based on the comparison of the first and second voltages on VOUT+ and VOUT?, respectively.
    Type: Application
    Filed: September 14, 2010
    Publication date: February 9, 2012
    Applicant: Broadcom Corporation
    Inventor: Jan MULDER
  • Publication number: 20110133967
    Abstract: In a latch circuit having a bistable pair of cross connected transistors of a first polarity and a third transistor of a second polarity, a current signal greater than a bias current is received at a latch circuit port, amplified with the third transistor, and applied to the latch circuit port. This decreases the time in which the latch circuit port receiving the current signal greater than the bias current reaches a steady state voltage.
    Type: Application
    Filed: February 14, 2011
    Publication date: June 9, 2011
    Applicant: Broadcom Corporation
    Inventors: Klaas BULT, Rudy VAN DE PLASSCHE, Jan MULDER
  • Patent number: 7906992
    Abstract: In a latch circuit having a bistable pair of cross connected transistors of a first polarity and a third transistor of a second polarity, a current signal greater than a bias current is received at a latch circuit port, amplified with the third transistor, and applied to the latch circuit port. This decreases the time in which the latch circuit port receiving the current signal greater than the bias current reaches a steady state voltage.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: March 15, 2011
    Assignee: Broadcom Corporation
    Inventors: Klaas Bult, Rudy Van de Plassche, Jan Mulder
  • Patent number: 7800449
    Abstract: Provided is a circuit to perform single-ended to differential conversion while providing common-mode voltage control. The circuit includes a converter to convert a single-ended signal to a differential signal and a stabilizing circuit adapted to receive the differential signal. The stabilizing circuit includes a sensor configured to sense a common-mode voltage level of the differential signal and a comparator having an output port coupled to the converter. The comparator is configured to compare the differential signal common-mode voltage level with a reference signal common-mode voltage level and produce an adjusting signal based upon the comparison. The adjusting signal is applied to the converter via the output port and is operative to adjust a subsequent common-mode voltage level of the differential signal.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: September 21, 2010
    Assignee: Qualcomm Incorporated
    Inventors: Jan Mulder, Marcel Lugthart, Chi-Hung Lin
  • Publication number: 20100186666
    Abstract: The invention relates to a device for coating substrates having a process chamber (1) disposed in a reactor housing and a two-part, substantially cup-shaped susceptor (2, 3) disposed therein, forming an upper susceptor part (3) with the cup floor thereof having a flat plate (2) and a lower susceptor part (3) with the cup side walls thereof, the outer side (4) of the plate (2) of the upper susceptor part (2) facing upwards toward the process chamber (1) and forming a contact surface for at least one substrate, the upper susceptor part (2) contacting a front edge (3?) of the lower susceptor part (3) at the edge of said upper susceptor part (2), the lower susceptor part (3) being supported by a susceptor carrier (6), and heating zones (A, B, C) for heating the upper susceptor part (2) being disposed below the plate (2?).
    Type: Application
    Filed: June 13, 2008
    Publication date: July 29, 2010
    Inventors: Johannes Kappeler, Adam Boyd, Victor Saywell, Jan Mulder, Olivier Feron
  • Publication number: 20100162957
    Abstract: The invention relates to a device for coating a plurality of substrates (3) which are regularly arranged on a bearing surface (2) of a susceptor (1) associated to a process chamber (14), wherein the bearing surface (2) forms abutment flanks (5) for the edge mounting of each substrate (3). In order to reduce the free susceptor surface to a minimum, it is proposed that the abutment flanks of the lateral walls (5) are formed by bases (4) which project from the bearing surface (2) and are separated at a distance from one another. Said bases are arranged on the corner points (10) of a honeycomb structure and have an outline essentially corresponding to an equilateral triangle with inwardly curved sides (5).
    Type: Application
    Filed: May 21, 2008
    Publication date: July 1, 2010
    Inventors: Adam Boyd, Victor Saywell, Jan Mulder, Olivier Feron, Johannes Käppeler
  • Patent number: 7710184
    Abstract: The invention refers to signal processing circuits, more particularly, to switch capacitor circuits, and methods for reducing inter-symbol-interference. A switch capacitor circuit with reduced Inter-Symbol-Interference effect is provided, comprising: a voltage source, a first capacitor, a second capacitor, and at least one switch configured to be switched in a way that the first capacitor is charged to a first voltage by means of the voltage source, and then discharged by means of the second capacitor, thereby reducing the Inter-Symbol-Interference effect.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: May 4, 2010
    Assignee: Broadcom Corporation
    Inventors: Franciscus Maria Leonardus van der Goes, Jan Mulder, Christopher Michael Ward
  • Publication number: 20100080271
    Abstract: Provided is a method and system for controlling current characteristics in a transceiver having a transmitter. The transmitter includes a plurality of current cells. Each cell is configurable for operating in different modes. The method includes determining a first probability associated with transmitting data at a particular symbolic level and determining a second probability associated with each cell being used during a transmission at the particular symbolic level. Next, one of the modes for each cell is selected in accordance with anticipated performance requirements. An average current of the transmitter is then calculated based upon the determined first and second probabilities and the selected modes.
    Type: Application
    Filed: August 5, 2009
    Publication date: April 1, 2010
    Applicant: Broadcom Corporation
    Inventors: Yee Ling CHEUNG, Kevin T. Chan, Jan Mulder
  • Patent number: 7616144
    Abstract: A voltage interpolation circuit includes a resistive ladder connected between ground and a voltage input and having a plurality of resistors with voltage taps between the resistors. An amplifier (optionally) has first and second capacitors connected together at their respective first terminals and to an input of the amplifier. A first plurality of switches connect respective taps to a second terminal of the first capacitor. A second plurality of switches connect the respective taps to a second terminal of the second capacitor. An output voltage is interpolated by controlling the first and second pluralities of switches.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: November 10, 2009
    Assignee: Broadcom Corporation
    Inventors: Jan Mulder, Franciscus Maria Leonardus van der Goes, Jan Westra, Rudy van der Plassche
  • Patent number: 7589655
    Abstract: Provided is a method and system for controlling current characteristics in a transceiver having a transmitter. The method includes identifying a phase control signal from an adjacent current cell preceding the particular current cell in time and logically ORing the phase control signal from the preceding cell with a phase control signal from the particular current cell.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: September 15, 2009
    Assignee: Broadcom Corporation
    Inventors: Yee Ling Cheung, Kevin T. Chan, Jan Mulder
  • Patent number: 7587181
    Abstract: Provided is a method and system for controlling current characteristics in a transceiver having a transmitter. The transmitter includes a plurality of current cells. Each cell is configurable for operating in different modes. The method includes determining a first probability associated with transmitting data at a particular symbolic level and determining a second probability associated with each cell being used during a transmission at the particular symbolic level. Next, one of the modes for each cell is selected in accordance with anticipated performance requirements. An average current of the transmitter is then calculated based upon the determined first and second probabilities and the selected modes.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: September 8, 2009
    Assignee: Broadcom Corporation
    Inventors: Yee Ling Cheung, Kevin T. Chan, Jan Mulder
  • Publication number: 20090121910
    Abstract: Provided is a method and system for controlling current characteristics in a transceiver having a transmitter. The method includes identifying a phase control signal from an adjacent current cell preceding the particular current cell in time and logically ORing the phase control signal from the preceding cell with a phase control signal from the particular current cell.
    Type: Application
    Filed: September 4, 2008
    Publication date: May 14, 2009
    Applicant: Broadcom Corporation
    Inventors: Yee Ling Cheung, Kevin T. Chan, Jan Mulder
  • Patent number: 7482891
    Abstract: A programmable gain attenuator includes a termination resistor. A first termination switch connects one side of the termination resistor to a first output. A second termination switch connects another side of the termination resistor to a second output. A first resistor ladder is arranged between a first input and the first side of the termination resistor. A first plurality of switches connect a corresponding tap from the first resistor ladder to the first output. A second resistor ladder is arranged between a second input and the second side of the termination resistor. A second plurality of switches connect a corresponding tap from the second resistor ladder to the second output. A first switch of the first plurality of switches is turned on, followed by a second switch of first plurality of switches turned off, followed by a third switch of first plurality of switches turned on.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: January 27, 2009
    Assignee: Broadcom Corporation
    Inventors: Jan R. Westra, Jan Mulder, Franciscus Maria Leonardus van der Goes
  • Patent number: 7423569
    Abstract: Provided is a method and system for controlling current characteristics in a transceiver having a transmitter. The method includes identifying a phase control signal from an adjacent current cell preceding the particular current cell in time and logically ORing the phase control signal from the preceding cell with a phase control signal from the particular current cell.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: September 9, 2008
    Assignee: Broadcom Corporation
    Inventors: Yee Ling Cheung, Kevin T. Chan, Jan Mulder
  • Publication number: 20080143391
    Abstract: In a latch circuit having a bistable pair of cross connected transistors of a first polarity and a third transistor of a second polarity, a current signal greater than a bias current is received at a latch circuit port, amplified with the third transistor, and applied to the latch circuit port. This decreases the time in which the latch circuit port receiving the current signal greater than the bias current reaches a steady state voltage.
    Type: Application
    Filed: February 29, 2008
    Publication date: June 19, 2008
    Applicant: Broadcom Corporation
    Inventors: Klass BULT, Rudy VAN DER PLASSCHE, Jan MULDER
  • Publication number: 20080088493
    Abstract: A voltage interpolation circuit includes a resistive ladder connected between ground and a voltage input and having a plurality of resistors with voltage taps between the resistors. An amplifier (optionally) has first and second capacitors connected together at their respective first terminals and to an input of the amplifier. A first plurality of switches connect respective taps to a second terminal of the first capacitor. A second plurality of switches connect the respective taps to a second terminal of the second capacitor. An output voltage is interpolated by controlling the first and second pluralities of switches.
    Type: Application
    Filed: September 18, 2007
    Publication date: April 17, 2008
    Applicant: Broadcom Corporation
    Inventors: Jan MULDER, Franciscus van der GOES, Jan WESTRA, Rudy van der PLASSCHE
  • Patent number: 7352215
    Abstract: In a latch circuit having a bistable pair of cross connected transistors of a first polarity and a third transistor of a second polarity, a current signal greater than a bias current is received at a latch circuit port, amplified with the third transistor, and applied to the latch circuit port. This decreases the time in which the latch circuit port receiving the current signal greater than the bias current reaches a steady state voltage.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: April 1, 2008
    Assignee: Broadcom Corporation
    Inventors: Klaas Bult, Rudy Van de Plassche, Jan Mulder
  • Patent number: 7324038
    Abstract: An N-bit analog to digital converter includes a reference ladder, a track-and-hold amplifier connected to an input voltage, a coarse ADC amplifier connected to a coarse capacitor at its input and having a coarse ADC reset switch controlled by a first clock phase of a two-phase clock, a fine ADC amplifier connected to a fine capacitor at its input and having a fine ADC reset switch controlled by a second clock phase of the two-phase clock, a switch matrix that selects a voltage subrange from the reference ladder for use by the fine ADC amplifier based on an output of the coarse ADC amplifier, and wherein the coarse capacitor is charged to a coarse reference ladder voltage during the first clock phase and connected to the T/H output during the second clock phase, wherein the fine capacitor is connected to a voltage subrange during the first clock phase and to the T/H output during the second clock phase, and an encoder that converts outputs of the coarse and fine ADC amplifiers to an N-bit output.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: January 29, 2008
    Assignee: Broadcom Corporation
    Inventors: Franciscus Maria Leonardus van der Goes, Jan Mulder, Christopher Michael Ward, Jan Roelof Westra, Ruby van de Plassche, Marcel Lugthart