Patents by Inventor Tapio Kuiri

Tapio Kuiri 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: 7978863
    Abstract: A circuit includes a differential amplifier having a first input for coupling to a first terminal of a microphone and a second input for coupling to a first terminal of a component having an impedance value that is substantially equal to an impedance value of the microphone, where a second terminal of the microphone and a second terminal of the component are coupled to circuit ground. The circuit further includes a first resistance having a first node coupled to a source of microphone bias voltage and a second node coupled to the first terminal of the microphone; and a second resistance having a first node coupled to the source of microphone bias voltage and a second node coupled to the first terminal of the component. Operation of the differential amplifier results in attenuating or suppressing common mode noise and interference present in the microphone bias voltage and in the common potential.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: July 12, 2011
    Assignee: Nokia Corporation
    Inventor: Tapio Kuiri
  • Patent number: 7778620
    Abstract: A method of controlling a phase locked loop in a mobile station and a mobile station of a cellular telecommunications system are provided. The mobile station comprises an integrated phase locked loop for generating output frequencies; a frequency control unit for providing a frequency control word for the phase locked loop, according to which frequency control word an output frequency is generated; and a tuning unit for providing a synchronized tuning word for the phase locked loop, the tuning unit being configured to output the synchronized tuning word to the phase locked loop in synchronization with the output of the frequency control word. The invention reduces the settling time of a mobile station when an operating frequency is changed from one to another.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: August 17, 2010
    Assignee: Nokia Corporation
    Inventor: Tapio Kuiri
  • Patent number: 7403747
    Abstract: A method of tuning a station is disclosed, wherein a first pilot signal is applied on a circuit of the station and the resulting output power of the signal circuit is subsequently detected. A second pilot signal is then applied to the circuit and the resulting output power of the circuit is detected. The offset of the circuit is then tuned based on information of the resulting output power detected for the first and second signals. A station that is adapted to implement the method may be tuned by the manufacturer thereof or later after having already been taken into use. The tuning may occur automatically as response to a predefined event.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: July 22, 2008
    Assignee: Nokia Corporation
    Inventors: Tapio Kuiri, Ville Salmi, Jorma Savolainen
  • Patent number: 7324795
    Abstract: A method of controlling a phase locked loop in a mobile station and a mobile station of a cellular telecommunications system are provided. The mobile station comprises an integrated phase locked loop for generating output frequencies; a frequency control unit for providing a frequency control word for the phase locked loop, according to which frequency control word an output frequency is generated; and a tuning unit for providing a synchronized tuning word for the phase locked loop, the tuning unit being configured to output the synchronized tuning word to the phase locked loop in synchronization with the output of the frequency control word. The invention reduces the settling time of a mobile station when an operating frequency is changed from one to another.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: January 29, 2008
    Assignee: Nokia Corporation
    Inventor: Tapio Kuiri
  • Publication number: 20070297623
    Abstract: A circuit includes a differential amplifier having a first input for coupling to a first terminal of a microphone and a second input for coupling to a first terminal of a component having an impedance value that is substantially equal to an impedance value of the microphone, where a second terminal of the microphone and a second terminal of the component are coupled to circuit ground. The circuit further includes a first resistance having a first node coupled to a source of microphone bias voltage and a second node coupled to the first terminal of the microphone; and a second resistance having a first node coupled to the source of microphone bias voltage and a second node coupled to the first terminal of the component. Operation of the differential amplifier results in attenuating or suppressing common mode noise and interference present in the microphone bias voltage and in the common potential.
    Type: Application
    Filed: June 26, 2006
    Publication date: December 27, 2007
    Inventor: Tapio Kuiri
  • Publication number: 20070117521
    Abstract: A method of controlling a phase locked loop in a mobile station and a mobile station of a cellular telecommunications system are provided. The mobile station comprises an integrated phase locked loop for generating output frequencies; a frequency control unit for providing a frequency control word for the phase locked loop, according to which frequency control word an output frequency is generated; and a tuning unit for providing a synchronized tuning word for the phase locked loop, the tuning unit being configured to output the synchronized tuning word to the phase locked loop in synchronization with the output of the frequency control word. The invention reduces the settling time of a mobile station when an operating frequency is changed from one to another.
    Type: Application
    Filed: January 19, 2007
    Publication date: May 24, 2007
    Inventor: Tapio Kuiri
  • Patent number: 7184715
    Abstract: A method of tuning a station is disclosed, wherein a first pilot signal is applied on a circuit of the station and the resulting output power of the signal circuit is subsequently detected. A second pilot signal is then applied to the circuit and the resulting output power of the circuit is detected. The offset of the circuit is then tuned based on information of the resulting output power detected for the first and second signals. A station that is adapted to implement the method may be tuned by the manufacturer thereof or later after having already been taken into use. The tuning may occur automatically as response to a predefined event.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: February 27, 2007
    Assignee: Nokia Corporation
    Inventors: Tapio Kuiri, Ville Salmi, Jorma Savolainen
  • Patent number: 7062248
    Abstract: A wireless communications mobile station (10) includes at least one antenna (240) and a RF transceiver (210,220) containing a direct conversion receiver (1) coupled to the antenna. The direct conversion receiver contains a low noise amplifier (3) for amplifying a received RF signal and for outputting the amplified RF signal to a current switching down-conversion mixer (4). The down-conversion mixer has a first input node for receiving the amplified RF signal, a second input node for receiving a local oscillator (LO) signal for mixing with the amplified RF signal and an output node coupled to an input of an operational amplifier forming a low pass filter (5A). In accordance with an aspect of this invention the low pass filter has a low pass pole generated by a resistor R and a capacitor C coupled in parallel in a feedback path of the operational amplifier, where a low pass comer frequency of the low pass filter is inversely proportional to the product of R and C.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: June 13, 2006
    Assignee: Nokia Corporation
    Inventor: Tapio Kuiri
  • Patent number: 7043242
    Abstract: A method and device for avoiding adjacent channel interference and reducing disconnections caused thereby, during communication between a mobile device and a base station in a wireless telecommunications network. The mobile device measures the strength of a received signal before the signal enters one or more selected filters, and compares the strength of the signal after the filtering, in order to estimate a power ratio of the adjacent channel interference to communication channel power. If the power ratio is greater than a threshold, then a handover is requested to an alternative communication channel available between the mobile device and either the base station or another base station.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: May 9, 2006
    Assignee: Nokia Corporation
    Inventors: Tapio Kuiri, Harri Lilja, Jussi Numminen, Kaj Jansen, Sami Haapoja
  • Publication number: 20050253556
    Abstract: The invention relates to a battery charging control circuit for controlling a charging of a rechargeable battery by means of a charging component. The battery charging control circuit comprises a switching element, a control component and an energy storage component. The switching element is adapted to connect a battery to a charging component and to disconnect the battery from the charging component. The control component is adapted to control the switching element. The energy storage component is arranged to be loaded by the charging component and to provide a voltage across the energy storage component as a supply voltage to the control component. The invention relates equally to a electronic device comprising such a circuit and to a method of providing a power supply to a control component of such a circuit.
    Type: Application
    Filed: May 11, 2004
    Publication date: November 17, 2005
    Inventor: Tapio Kuiri
  • Publication number: 20050064836
    Abstract: A method of controlling a phase locked loop in a mobile station and a mobile station of a cellular telecommunications system are provided. The mobile station comprises an integrated phase locked loop for generating output frequencies; a frequency control unit for providing a frequency control word for the phase locked loop, according to which frequency control word an output frequency is generated; and a tuning unit for providing a synchronized tuning word for the phase locked loop, the tuning unit being configured to output the synchronized tuning word to the phase locked loop in synchronization with the output of the frequency control word. The invention reduces the settling time of a mobile station when an operating frequency is changed from one to another.
    Type: Application
    Filed: September 23, 2003
    Publication date: March 24, 2005
    Inventor: Tapio Kuiri
  • Patent number: 6798294
    Abstract: A low noise amplifier (500) is provided for amplifying signals in a frequency band. The low noise amplifier (500) comprises several amplifying elements (505, 506) that share a load impedance (503) and a degeneration impedance (504). One of the amplifying elements (505, 506) is activated at a time that the rest are deactivated. The activation and deactivation is done by feeding a bias to a bias port (501, 507) or grounding the same, respectively. A signal to be amplified is fed to the corresponding input (511, 512) depending on which of the amplifying elements (505, 506) is activated. An amplified signal is obtained at an output (513).
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: September 28, 2004
    Assignee: Nokia Corporation
    Inventor: Tapio Kuiri
  • Publication number: 20040142674
    Abstract: A wireless communications mobile station (10) includes at least one antenna (240) and a RF transceiver (210,220) containing a direct conversion receiver (1) coupled to the antenna. The direct conversion receiver contains a low noise amplifier (3) for amplifying a received RF signal and for outputting the amplified RF signal to a current switching down-conversion mixer (4). The down-conversion mixer has a first input node for receiving the amplified RF signal, a second input node for receiving a local oscillator (LO) signal for mixing with the amplified RF signal and an output node coupled to an input of an operational amplifier forming a low pass filter (5A). In accordance with an aspect of this invention the low pass filter has a low pass pole generated by a resistor R and a capacitor C coupled in parallel in a feedback path of the operational amplifier, where a low pass comer frequency of the low pass filter is inversely proportional to the product of R and C.
    Type: Application
    Filed: January 16, 2003
    Publication date: July 22, 2004
    Applicant: Nokia Corporation
    Inventor: Tapio Kuiri
  • Patent number: 6639853
    Abstract: A method of using an integrated circuit with at least one defect, said method comprising the steps of determining the location of one or more defects in said integrated circuit; selecting a program to be stored on said integrated circuit, said program being selected on the basis of the location of said one or more defects; and loading said program onto said integrated circuit.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: October 28, 2003
    Assignee: Nokia Mobile Phones, Ltd.
    Inventor: Tapio Kuiri
  • Patent number: 6633618
    Abstract: A signal path, such as receiver signal path of a mobile station, includes an analog to digital converter (ADC) for representing an input signal as n-bits, the n-bit representation including a DC offset component. The signal path also includes a summing node having a first input for inputting the n-bit output of the ADC and a second input for inputting a k-bit representation of a DC offset component compensation value, where k=n+m, where m is a number of bits that represent a value smaller than one least significant bit (LSB) of said n-bit representation. The summing node operates to subtract the value appearing at the second input from the value appearing at the first input, and outputs a k-bit DC offset compensated value.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: October 14, 2003
    Assignee: Nokia Corporation
    Inventors: Tapio Kuiri, Simon Nicholas Walker, Alice Frances Wilson
  • Publication number: 20030153287
    Abstract: A method and apparatus for sensing the operational temperature of a power amplifier within a mobile telephone is disclosed. A sensor circuit is connected to sense the voltage at the input of the bias current supply to the power amplifier. This voltage being indicative of the voltage drop over the biased transistor of the power amplifier will also be indicative of the operating temperature of the power amplifier.
    Type: Application
    Filed: February 14, 2002
    Publication date: August 14, 2003
    Inventor: Tapio Kuiri
  • Publication number: 20030058050
    Abstract: A low noise amplifier (500) is provided for amplifying signals in a frequency band. The low noise amplifier (500) comprises several amplifying elements (505, 506) that share a load impedance (503) and a degeneration impedance (504). One of the amplifying elements (505, 506) is activated at a time that the rest are deactivated. The activation and deactivation is done by feeding a bias to a bias port (501, 507) or grounding the same, respectively. A signal to be amplified is fed to the corresponding input (511, 512) depending on which of the amplifying elements (505, 506) is activated. An amplified signal is obtained at an output (513).
    Type: Application
    Filed: September 13, 2002
    Publication date: March 27, 2003
    Applicant: Nokia Corporation
    Inventor: Tapio Kuiri
  • Publication number: 20030053561
    Abstract: A method of tuning a station is disclosed, wherein a first pilot signal is applied on a circuit of the station and the resulting output power of the signal circuit is subsequently detected. A second pilot signal is then applied to the circuit and the resulting output power of the circuit is detected. The offset of the circuit is then tuned based on information of the resulting output power detected for the first and second signals. A station that is adapted to implement the method may be tuned by the manufacturer thereof or later after having already been taken into use. The tuning may occur automatically as response to a predefined event.
    Type: Application
    Filed: June 27, 2002
    Publication date: March 20, 2003
    Applicant: Nokia Corporation
    Inventors: Tapio Kuiri, Ville Salmi, Jorma Savolainen
  • Publication number: 20020192864
    Abstract: The invention relates to a method of manufacturing integrated circuits, in which a variety of masks is used for manufacturing material layers, among which masks a suitable mask is selected to check the manufacturing quality of the component areas manufactured on the previous layer on the basis of the measurement results. Thus, the value of the component to be manufactured can be tuned to fit into the desired range and the range of the electrical values of the components of integrated circuits can be decreased. The component can be tuned in a variety of ways, e.g. by manufacturing components of different sizes and selecting a suitable component among them (158, 160, 162).
    Type: Application
    Filed: July 23, 2002
    Publication date: December 19, 2002
    Inventor: Tapio Kuiri
  • Publication number: 20020102941
    Abstract: A method and device for avoiding adjacent channel interference and reducing disconnections caused thereby, during communication between a mobile device and a base station in a wireless telecommunications network. The mobile device measures the strength of a received signal before the signal enters one or more selected filters, and compares the strength of the signal after the filtering, in order to estimate a power ratio of the adjacent channel interference to communication channel power. If the power ratio is greater than a threshold, then a handover is requested to an alternative communication channel available between the mobile device and either the base station or another base station.
    Type: Application
    Filed: January 31, 2001
    Publication date: August 1, 2002
    Applicant: Nokia Mobile Phones Ltd.
    Inventors: Tapio Kuiri, Harri Lilja, Jussi Numminen, Kaj Jansen, Sami Haapoja