Patents by Inventor Latha Caliaperoumal

Latha Caliaperoumal 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: 8737917
    Abstract: A dual-mode BLE device identifies idle intervals within Bluetooth BR/EDR traffic communications. The identified idle intervals are used by the dual-mode BLE device to concurrently perform various BLE activities. For example, advertising packet transmissions, advertising packet scanning, connection setup, and/or data packet communication may be concurrently performed within identified idle intervals within the Bluetooth BR/EDR traffic communications. Packet transmission timing, advertising interval, scan window, and/or packet size are determined based on the identified idle intervals within the Bluetooth BR/EDR traffic communications. A scan window is adjusted based on timing of expected advertising transmissions and/or advertising interval(s) for saving power. BLE packets and Bluetooth BR/EDR packets may be detected in a single advertising channel. Maximal payload size is set based on the identified idle intervals within Bluetooth BR/EDR traffic communications.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: May 27, 2014
    Assignee: Broadcom Corporation
    Inventors: Prasanna Desai, Chikan Kwan, Angel Polo, Song Qiao, Cindy Tian, Yuan Zhuang, Guoxin Xie, Latha Caliaperoumal, Brima Ibrahim
  • Patent number: 8457554
    Abstract: Methods and systems for wireless communication are disclosed and may include controlling one or more scans of a received signal detection frequency across a frequency range and storing a magnitude of the received signal at each frequency where the magnitude exceeds a threshold level. A type of one or more signals in the received signal may be determined based on a bandwidth of the signals. A Bluetooth page/inquiry scan may be initiated if the determined type is a page/inquiry signal, and scans may be continued if the determined type may not be a page/inquiry signal. The scans may be repeated on a periodic basis and may be controlled utilizing a voltage controlled oscillator. Each of the scans may include a plurality of discrete frequency steps or a continuous frequency ramp. The controlling may include a start frequency, an end frequency and a frequency step size for the scans.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: June 4, 2013
    Assignee: Broadcom Corporation
    Inventors: Steven Deane Hall, Brima Babatunde Ibrahim, Hea Joung Kim, Yuan Zhuang, Langford Wasada, Bojko Marholev, Shawn Ding, Latha Caliaperoumal, Satya Prasad Srinivas
  • Publication number: 20110021142
    Abstract: A dual-mode BLE device identifies idle intervals within Bluetooth BR/EDR traffic communications. The identified idle intervals are used by the dual-mode BLE device to concurrently perform various BLE activities. For example, advertising packet transmissions, advertising packet scanning, connection setup, and/or data packet communication may be concurrently performed within identified idle intervals within the Bluetooth BR/EDR traffic communications. Packet transmission timing, advertising interval, scan window, and/or packet size are determined based on the identified idle intervals within the Bluetooth BR/EDR traffic communications. A scan window is adjusted based on timing of expected advertising transmissions and/or advertising interval(s) for saving power. BLE packets and Bluetooth BR/EDR packets may be detected in a single advertising channel. Maximal payload size is set based on the identified idle intervals within Bluetooth BR/EDR traffic communications.
    Type: Application
    Filed: August 24, 2009
    Publication date: January 27, 2011
    Inventors: Prasanna Desai, Chikan Kwan, Angel Polo, Song Qiao, Cindy Tian, Yuan Zhuang, Guoxin Xie, Latha Caliaperoumal, Brima Ibrahim
  • Publication number: 20090124200
    Abstract: Methods and systems for wireless communication are disclosed and may include controlling one or more scans of a received signal detection frequency across a frequency range and storing a magnitude of the received signal at each frequency where the magnitude exceeds a threshold level. A type of one or more signals in the received signal may be determined based on a bandwidth of the signals. A Bluetooth page/inquiry scan may be initiated if the determined type is a page/inquiry signal, and scans may be continued if the determined type may not be a page/inquiry signal. The scans may be repeated on a periodic basis and may be controlled utilizing a voltage controlled oscillator. Each of the scans may include a plurality of discrete frequency steps or a continuous frequency ramp. The controlling may include a start frequency, an end frequency and a frequency step size for the scans.
    Type: Application
    Filed: November 13, 2007
    Publication date: May 14, 2009
    Inventors: Steven Deane Hall, Brima Babatunde Ibrahim, Hea Joung Kim, Yuan Zhuang, Langford Wasada, Bojko Marholev, Shawn Ding, Latha Caliaperoumal, Satya Prasad Srinivas
  • Publication number: 20090022208
    Abstract: Methods and systems for wireless communication are disclosed and may include sweeping a signal detection frequency one or more times across a plurality of steps in a frequency range. The measured signal strength at each step may be compared to a threshold, and a status may be stored, which may depend on the presence of a measured signal strength above threshold. The detection frequency may be swept utilizing a voltage controlled oscillator, which may be tuned via a control voltage and/or calibration capacitors. Steps may be skipped when a measured signal strength may be greater than the threshold, and may occur after multiple above threshold measurements. The steps may have variable frequency width, and the range may include the Bluetooth band from 2.40 GHz to 2.48 GHz. The frequency may be swept over a subset of the Bluetooth band, and may be swept on a periodic basis.
    Type: Application
    Filed: January 21, 2008
    Publication date: January 22, 2009
    Inventors: Steven Deane Hall, Brima Ibrahim, Hea Joung Kim, Yuan Zhuang, Langford Wasada, Bojko Marholev, Shawn Ding, Latha Caliaperoumal, Satya Prasad Srinivas