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).
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Patent number: 9295075Abstract: 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: GrantFiled: November 4, 2013Date of Patent: March 22, 2016Assignee: Broadcom CorporationInventors: George A. Wyper, Sven Jerlhagen
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Patent number: 9264152Abstract: 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: GrantFiled: June 17, 2013Date of Patent: February 16, 2016Assignee: Broadcom CorporationInventors: Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
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Patent number: 8942329Abstract: 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: GrantFiled: August 9, 2011Date of Patent: January 27, 2015Assignee: Broadcom CorporationInventors: Prasanna Desai, Sven Jerlhagen, Brima Ibrahim, Siukai Mak, Asif Grushkevich, John Walley
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Publication number: 20140056288Abstract: 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: ApplicationFiled: November 4, 2013Publication date: February 27, 2014Applicant: Broadcom CorporationInventors: George A. Wyper, Sven Jerlhagen
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Patent number: 8606182Abstract: 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: GrantFiled: March 6, 2013Date of Patent: December 10, 2013Assignee: Broadcom CorporationInventors: George Andrew Wyper, Sven Jerlhagen
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Publication number: 20130273949Abstract: 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: ApplicationFiled: June 17, 2013Publication date: October 17, 2013Inventors: Joakim LINDE, Aysegul FINDIKLI, Sven JERLHAGEN, Ritesh VISHWAKARMA
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Patent number: 8554137Abstract: 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: GrantFiled: February 12, 2007Date of Patent: October 8, 2013Assignee: Broadcom CorporationInventors: George Andrew Wyper, Sven Jerlhagen
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Patent number: 8515354Abstract: 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: GrantFiled: July 19, 2012Date of Patent: August 20, 2013Assignee: Broadcom CorporationInventors: Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
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Publication number: 20120282861Abstract: 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: ApplicationFiled: July 19, 2012Publication date: November 8, 2012Applicant: Broadcom CorporationInventors: Joakim LINDE, Aysegul FINDIKLI, Sven JERLHAGEN, Ritesh VISHWAKARMA
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Patent number: 8229364Abstract: 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: GrantFiled: November 14, 2011Date of Patent: July 24, 2012Assignee: Broadcom CorporationInventors: Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
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Publication number: 20120058731Abstract: 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: ApplicationFiled: November 14, 2011Publication date: March 8, 2012Applicant: Broadcom CorporationInventors: Joakim LINDE, Aysegul FINDIKLI, Sven JERLHAGEN, Ritesh VISHWAKARMA
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Patent number: 8102836Abstract: 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: GrantFiled: May 23, 2007Date of Patent: January 24, 2012Assignee: Broadcom CorporationInventors: Sven Jerlhagen, Mattias Per Agren, Sathiyanarayanan Krithikaivasan
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Publication number: 20110294432Abstract: 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: ApplicationFiled: August 9, 2011Publication date: December 1, 2011Inventors: Prasanna Desai, Sven Jerlhagen, Brima Ibrahim, Siukai Mak, Asif Grushkevich, John Walley
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Patent number: 8064839Abstract: 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: GrantFiled: April 12, 2010Date of Patent: November 22, 2011Assignee: Broadcom CorporationInventors: Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
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Publication number: 20100197234Abstract: 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: ApplicationFiled: April 12, 2010Publication date: August 5, 2010Applicant: Broadcom CorporationInventors: Joakim LINDE, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
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Patent number: 7720507Abstract: 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: GrantFiled: October 22, 2007Date of Patent: May 18, 2010Assignee: Broadcom CorporationInventors: Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
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Publication number: 20090097388Abstract: 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: ApplicationFiled: October 22, 2007Publication date: April 16, 2009Applicant: Broadcom CorporationInventors: Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma
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Publication number: 20080291891Abstract: 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: ApplicationFiled: May 23, 2007Publication date: November 27, 2008Applicant: BROADCOM CORPORATIONInventors: Sven Jerlhagen, Mattias Per Agren, Sathiyanarayanan Krithikaivasan
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Publication number: 20080219323Abstract: 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: ApplicationFiled: March 5, 2007Publication date: September 11, 2008Inventors: Prasanna Desai, Sven Jerlhagen, Brima Ibrahim, Siukai Mak, Asif Grushkevich, John Walley
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Publication number: 20080192806Abstract: 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: ApplicationFiled: February 12, 2007Publication date: August 14, 2008Inventors: George Andrew Wyper, Sven Jerlhagen