Patents by Inventor Sven Jerlhagen

Sven Jerlhagen 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: 9295075
    Abstract: A method and system for Bluetooth® and Wireless LAN coexistence may include controlling wireless local area network (WLAN) communication and Bluetooth® communication in a coexistence system that handles at least a WLAN communication protocol and a Bluetooth® communication protocol based on time division multiplexing (TDM) and adaptive frequency hopping (AFH). Switching may occur between the WLAN communication and the Bluetooth® communication based on the TDM and the AFH. In one embodiment of the invention, the switching may occur adaptively. Notwithstanding, in instances where it may be determined that AFH is disabled, switching to TDM may occur. WLAN communication and/or Bluetooth® communication may be disabled or enabled based on a state of at the WLAN communication and/or the Bluetooth® communication. Use of the AFH may be enabled or disabled based on a link status of the WLAN communication and/or the Bluetooth® communication.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: March 22, 2016
    Assignee: Broadcom Corporation
    Inventors: George A. Wyper, Sven Jerlhagen
  • Patent number: 9264152
    Abstract: A method for avoiding signal interference between a first RF circuit and a second RF circuit is provided. The first and second RF circuits are co-located and the first RF circuit is configured to operate in a first frequency range. The second RF circuit is configured to operate in a second frequency range, where the first frequency range overlaps, at least in part, the first frequency range. The method initiates with a controller that is coupled to the first RF circuit and the second RF circuit. Then, the second RF circuit is configured to avoid RF signal collisions with the first RF circuit. An apparatus where two RF devices are co-located without causing interference for each other is also provided.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: February 16, 2016
    Assignee: Broadcom Corporation
    Inventors: Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
  • Patent number: 8942329
    Abstract: A method for frequency selection in a wireless communication system, includes performing in a wireless device, receiving at least one signal at a current frequency; processing at least one data packet received via the received at least one signal to determine the presence of bit errors; characterizing the received at least one signal received at the current frequency based on the processing of the at least one data packet; classifying the current frequency based on at least the characterization of the received at least one signal; and selecting the current frequency based on the classification. At least one signal strength measurement may be performed on the received at least one signal, and the processing of the at least one data packet may be performed within a current channel classification update interval.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: January 27, 2015
    Assignee: Broadcom Corporation
    Inventors: Prasanna Desai, Sven Jerlhagen, Brima Ibrahim, Siukai Mak, Asif Grushkevich, John Walley
  • Publication number: 20140056288
    Abstract: A method and system for Bluetooth® and Wireless LAN coexistence may include controlling wireless local area network (WLAN) communication and Bluetooth® communication in a coexistence system that handles at least a WLAN communication protocol and a Bluetooth® communication protocol based on time division multiplexing (TDM) and adaptive frequency hopping (AFH). Switching may occur between the WLAN communication and the Bluetooth® communication based on the TDM and the AFH. In one embodiment of the invention, the switching may occur adaptively. Notwithstanding, in instances where it may be determined that AFH is disabled, switching to TDM may occur. WLAN communication and/or Bluetooth® communication may be disabled or enabled based on a state of at the WLAN communication and/or the Bluetooth® communication. Use of the AFH may be enabled or disabled based on a link status of the WLAN communication and/or the Bluetooth® communication.
    Type: Application
    Filed: November 4, 2013
    Publication date: February 27, 2014
    Applicant: Broadcom Corporation
    Inventors: George A. Wyper, Sven Jerlhagen
  • Patent number: 8606182
    Abstract: A method and system for Bluetooth® and Wireless LAN coexistence may include controlling wireless local area network (WLAN) communication and Bluetooth® communication in a coexistence system that handles at least a WLAN communication protocol and a Bluetooth® communication protocol based on time division multiplexing (TDM) and adaptive frequency hopping (AFH). Switching may occur between the WLAN communication and the Bluetooth® communication based on the TDM and the AFH. In one embodiment of the invention, the switching may occur adaptively. Notwithstanding, in instances where it may be determined that AFH is disabled, switching to TDM may occur. WLAN communication and/or Bluetooth® communication may be disabled or enabled based on a state of at the WLAN communication and/or the Bluetooth® communication. Use of the AFH may be enabled or disabled based on a link status of the WLAN communication and/or the Bluetooth® communication.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: December 10, 2013
    Assignee: Broadcom Corporation
    Inventors: George Andrew Wyper, Sven Jerlhagen
  • Publication number: 20130273949
    Abstract: A method for avoiding signal interference between a first RF circuit and a second RF circuit is provided. The first and second RF circuits are co-located and the first RF circuit is configured to operate in a first frequency range. The second RF circuit is configured to operate in a second frequency range, where the first frequency range overlaps, at least in part, the first frequency range. The method initiates with a controller that is coupled to the first RF circuit and the second RF circuit. Then, the second RF circuit is configured to avoid RF signal collisions with the first RF circuit. An apparatus where two RF devices are co-located without causing interference for each other is also provided.
    Type: Application
    Filed: June 17, 2013
    Publication date: October 17, 2013
    Inventors: Joakim LINDE, Aysegul FINDIKLI, Sven JERLHAGEN, Ritesh VISHWAKARMA
  • Patent number: 8554137
    Abstract: A method and system for Bluetooth® and Wireless LAN coexistence may include controlling wireless local area network (WLAN) communication and Bluetooth® communication in a coexistence system that handles at least a WLAN communication protocol and a Bluetooth® communication protocol based on time division multiplexing (TDM) and adaptive frequency hopping (AFH). Switching may occur between the WLAN communication and the Bluetooth® communication based on the TDM and the AFH. In one embodiment of the invention, the switching may occur adaptively. Notwithstanding, in instances where it may be determined that AFH is disabled, switching to TDM may occur. WLAN communication and/or Bluetooth® communication may be disabled or enabled based on a state of at the WLAN communication and/or the Bluetooth® communication. Use of the AFH may be enabled or disabled based on a link status of the WLAN communication and/or the Bluetooth® communication.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: October 8, 2013
    Assignee: Broadcom Corporation
    Inventors: George Andrew Wyper, Sven Jerlhagen
  • Patent number: 8515354
    Abstract: A method for avoiding signal interference between a first RF circuit and a second RF circuit is provided. The first and second RF circuits are co-located and the first RF circuit is configured to operate in a first frequency range. The second RF circuit is configured to operate in a second frequency range, where the first frequency range overlaps, at least in part, the first frequency range. The method initiates with a controller that is coupled to the first RF circuit and the second RF circuit. Then, the second RF circuit is configured to avoid RF signal collisions with the first RF circuit. An apparatus where two RF devices are co-located without causing interference for each other is also provided.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: August 20, 2013
    Assignee: Broadcom Corporation
    Inventors: Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
  • Publication number: 20120282861
    Abstract: A method for avoiding signal interference between a first RF circuit and a second RF circuit is provided. The first and second RF circuits are co-located and the first RF circuit is configured to operate in a first frequency range. The second RF circuit is configured to operate in a second frequency range, where the first frequency range overlaps, at least in part, the first frequency range. The method initiates with a controller that is coupled to the first RF circuit and the second RF circuit. Then, the second RF circuit is configured to avoid RF signal collisions with the first RF circuit. An apparatus where two RF devices are co-located without causing interference for each other is also provided.
    Type: Application
    Filed: July 19, 2012
    Publication date: November 8, 2012
    Applicant: Broadcom Corporation
    Inventors: Joakim LINDE, Aysegul FINDIKLI, Sven JERLHAGEN, Ritesh VISHWAKARMA
  • Patent number: 8229364
    Abstract: A method for avoiding signal interference between a first RF device and a second RF device is provided. The first and second RF devices are co-located and the first RF device is configured to operate in a first frequency range. The second RF device is configured to operate in a second frequency range, where the first frequency range overlaps, at least in part, the first frequency range. The method initiates with a communication interface being provided between the first RF device and the second RF device. Then, the second RF device is configured to avoid RF signal collisions with the first RF device when the first RF device is active. An apparatus where two RF devices are co-located without causing interference for each other is also provided.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: July 24, 2012
    Assignee: Broadcom Corporation
    Inventors: Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
  • Publication number: 20120058731
    Abstract: A method for avoiding signal interference between a first RF device and a second RF device is provided. The first and second RF devices are co-located and the first RF device is configured to operate in a first frequency range. The second RF device is configured to operate in a second frequency range, where the first frequency range overlaps, at least in part, the first frequency range. The method initiates with a communication interface being provided between the first RF device and the second RF device. Then, the second RF device is configured to avoid RF signal collisions with the first RF device when the first RF device is active. An apparatus where two RF devices are co-located without causing interference for each other is also provided.
    Type: Application
    Filed: November 14, 2011
    Publication date: March 8, 2012
    Applicant: Broadcom Corporation
    Inventors: Joakim LINDE, Aysegul FINDIKLI, Sven JERLHAGEN, Ritesh VISHWAKARMA
  • Patent number: 8102836
    Abstract: Methods, systems, and apparatuses for synchronizing one or more output/sink devices are described. In each sink device, a communication packet is received from a source device. The communication packet includes data and a source clock timestamp. A local clock signal is generated that is synchronized with a source clock signal of the source device. The data is decoded using a codec. At least one delay and the source clock timestamp are subtracted from a current value of the local clock signal to generate a local latency value. A difference between a desired latency value and the local latency value is determined. A rate of a clock signal of the codec is adjusted according to the determined difference. Because each sink device adjusts its latency to a common desired latency value, the sink devices are thereby synchronized.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: January 24, 2012
    Assignee: Broadcom Corporation
    Inventors: Sven Jerlhagen, Mattias Per Agren, Sathiyanarayanan Krithikaivasan
  • Publication number: 20110294432
    Abstract: A method for frequency selection in a wireless communication system, includes performing in a wireless device, receiving at least one signal at a current frequency; processing at least one data packet received via the received at least one signal to determine the presence of bit errors; characterizing the received at least one signal received at the current frequency based on the processing of the at least one data packet; classifying the current frequency based on at least the characterization of the received at least one signal; and selecting the current frequency based on the classification. At least one signal strength measurement may be performed on the received at least one signal, and the processing of the at least one data packet may be performed within a current channel classification update interval.
    Type: Application
    Filed: August 9, 2011
    Publication date: December 1, 2011
    Inventors: Prasanna Desai, Sven Jerlhagen, Brima Ibrahim, Siukai Mak, Asif Grushkevich, John Walley
  • Patent number: 8064839
    Abstract: A method for avoiding signal interference between a first RF device and a second RF device is provided. The first and second RF devices are co-located and the first RF device is configured to operate within a semi-stationary range of a frequency band. The second RF device is configured to operate by changing channels within the frequency band. The method initiates with a communication interface being provided between the first RF device and the second RF device. Then, the second RF device receives the semi-stationary range and a mode for the first RF device through the communication interface. Next, the second RF device is adapted to avoid the semi-stationary range of the frequency band of the first RF device when the mode of the first RF device is in an active mode. An apparatus where two RF devices are co-located without causing interference for each other is also provided.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: November 22, 2011
    Assignee: Broadcom Corporation
    Inventors: Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
  • Publication number: 20100197234
    Abstract: A method for avoiding signal interference between a first RF device and a second RF device is provided. The first and second RF devices are co-located and the first RF device is configured to operate within a semi-stationary range of a frequency band. The second RF device is configured to operate by changing channels within the frequency band. The method initiates with a communication interface being provided between the first RF device and the second RF device. Then, the second RF device receives the semi-stationary range and a mode for the first RF device through the communication interface. Next, the second RF device is adapted to avoid the semi-stationary range of the frequency band of the first RF device when the mode of the first RF device is in an active mode. An apparatus where two RF devices are co-located without causing interference for each other is also provided.
    Type: Application
    Filed: April 12, 2010
    Publication date: August 5, 2010
    Applicant: Broadcom Corporation
    Inventors: Joakim LINDE, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
  • Patent number: 7720507
    Abstract: A method for avoiding signal interference between a first RF device and a second RF device is provided. The first and second RF devices are co-located and the first RF device is configured to operate within a semi-stationary range of a frequency band. The second RF device is configured to operate by changing channels within the frequency band. The method initiates with a communication interface being provided between the first RF device and the second RF device. Then, the second RF device receives the semi-stationary range and a mode for the first RF device through the communication interface. Next, the second RF device is adapted to avoid the semi-stationary range of the frequency band of the first RF device when the mode of the first RF device is in an active mode. An apparatus where two RF devices are co-located without causing interference for each other is also provided.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: May 18, 2010
    Assignee: Broadcom Corporation
    Inventors: Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
  • Publication number: 20090097388
    Abstract: A method for avoiding signal interference between a first RF device and a second RF device is provided. The first and second RF devices are co-located and the first RF device is configured to operate within a semi-stationary range of a frequency band. The second RF device is configured to operate by changing channels within the frequency band. The method initiates with a communication interface being provided between the first RF device and the second RF device. Then, the second RF device receives the semi-stationary range and a mode for the first RF device through the communication interface. Next, the second RF device is adapted to avoid the semi-stationary range of the frequency band of the first RF device when the mode of the first RF device is in an active mode. An apparatus where two RF devices are co-located without causing interference for each other is also provided.
    Type: Application
    Filed: October 22, 2007
    Publication date: April 16, 2009
    Applicant: Broadcom Corporation
    Inventors: Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
  • Publication number: 20080291891
    Abstract: Methods, systems, and apparatuses for synchronizing one or more output/sink devices are described. In each sink device, a communication packet is received from a source device. The communication packet includes data and a source clock timestamp. A local clock signal is generated that is synchronized with a source clock signal of the source device. The data is decoded using a codec. At least one delay and the source clock timestamp are subtracted from a current value of the local clock signal to generate a local latency value. A difference between a desired latency value and the local latency value is determined. A rate of a clock signal of the codec is adjusted according to the determined difference. Because each sink device adjusts its latency to a common desired latency value, the sink devices are thereby synchronized.
    Type: Application
    Filed: May 23, 2007
    Publication date: November 27, 2008
    Applicant: BROADCOM CORPORATION
    Inventors: Sven Jerlhagen, Mattias Per Agren, Sathiyanarayanan Krithikaivasan
  • Publication number: 20080219323
    Abstract: Aspects of a method and system for fast and reliable channel classification in Bluetooth networks to detect and avoid channel interferers may include one or more processors that may enable performance of signal strength measurements on received Bluetooth signals at a current selected frequency. At least one data packet received via the Bluetooth signals may be processed to determine the presence of bit errors. The processor(s) may enable characterization of the Bluetooth signals at the current selected frequency based on the signal strength measurements and/or the processing of the data packets. The current selected frequency may be selected during adaptive frequency hopping based on the characterization.
    Type: Application
    Filed: March 5, 2007
    Publication date: September 11, 2008
    Inventors: Prasanna Desai, Sven Jerlhagen, Brima Ibrahim, Siukai Mak, Asif Grushkevich, John Walley
  • Publication number: 20080192806
    Abstract: A method and system for Bluetooth® and Wireless LAN coexistence may include controlling wireless local area network (WLAN) communication and Bluetooth® communication in a coexistence system that handles at least a WLAN communication protocol and a Bluetooth® communication protocol based on time division multiplexing (TDM) and adaptive frequency hopping (AFH). Switching may occur between the WLAN communication and the Bluetooth® communication based on the TDM and the AFH. In one embodiment of the invention, the switching may occur adaptively. Notwithstanding, in instances where it may be determined that AFH is disabled, switching to TDM may occur. WLAN communication and/or Bluetooth® communication may be disabled or enabled based on a state of at the WLAN communication and/or the Bluetooth® communication. Use of the AFH may be enabled or disabled based on a link status of the WLAN communication and/or the Bluetooth® communication.
    Type: Application
    Filed: February 12, 2007
    Publication date: August 14, 2008
    Inventors: George Andrew Wyper, Sven Jerlhagen