Patents by Inventor Rajesh Mamidwar

Rajesh Mamidwar 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: 9094161
    Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, different network types may be channel bonded to function as a single logical channel.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: July 28, 2015
    Assignee: Broadcom Corporation
    Inventors: Xuemin Chen, Rajesh Mamidwar, Victor Hou
  • Patent number: 9032453
    Abstract: A multiplexed transport interface (MTSIF) may be utilized during communication between a demodulation module and a video processing system-on-chip (SoC). The MTSIF may enable concurrent demodulation of a plurality of input modulated video streams, via a plurality of demodulator chips within the demodulation module, by multiplexing data generated by the demodulator chips via the MTSIF during communication between the demodulator module and the video processing SoC. The MTSIF may also be utilized for communicating control signals, which may be used in controlling and/or managing operations of the demodulation module, the video processing SoC, and/or the MTSIF. Communication via the MTSIF may be synchronized. Packets communicated via the MTSIF may be timestamped. Timestamp counters may be used in the demodulation module and the video processing SoC to generate and/or track timestamps in communicated packets. The timestamp counter may be synchronized, using control signals communicated via the MTSIF.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: May 12, 2015
    Assignee: Broadcom Corporation
    Inventors: Rajesh Mamidwar, Stephen Edward Krafft
  • Patent number: 9001728
    Abstract: Various systems and methods are provided for transmission of related data components across independent streams. In one embodiment, among others, a transmitting device may separate transmission data into related data components and transmit each related data component in an associated transport stream. Each related data component includes a synchronization tag associated with synchronization of the related data component within the transmission data. In another embodiment, a receiving device may receive related data components transmitted in separate transport streams and decode the related data components based at least in part upon a synchronization tag included in each related data component.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: April 7, 2015
    Assignee: Broadcom Corporation
    Inventors: Wade Wan, Rajesh Mamidwar, Xuemin Chen, Marcus Kellerman, Brett Tischler
  • Patent number: 8854545
    Abstract: A television on a chip (TVOC) system that provides a cost effective approach for providing television functionality on a single integrated circuit chip is disclosed. A TVOC includes the functionality necessary to receive and display television signals in a variety of input and output formats. A TVOC can be used in set-top boxes for cable and satellite television, or directly within a television. All functionality provided can be provided on a single integrated circuit. TVOC includes a data transport module, an IF demodulator, a digital audio engine, an analog audio engine, a digital video engine, and an analog video engine. The TVOC also includes three sets of interfaces including output interfaces, control interfaces and ancillary interfaces. Further features and embodiments provide enhanced functionality and increased efficiencies.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: October 7, 2014
    Assignee: Broadcom Corporation
    Inventors: David A. Baer, Jeff Tingley, Aleksandr Movshovich, Brad Grossman, Brian F. Schoner, Chengfuh Jeffrey Tang, Chuck Monahan, Darren D. Neuman, David Chao Hua Wu, Francis Cheung, Greg A. Kranawetter, Hoang Nhu, Hsien-Chih Jim Tseng, Iue-Shuenn Chen, James D. Sweet, Jeffrey S. Bauch, Keith LaRell Klingler, Patrick Law, Rajesh Mamidwar, Dan Simon, Sang Van Tran, Shawn V. Johnson, Steven T. Jaffe, Thu T. Nguyen, Ut Nguyen, Yao-Hua Steven Tseng, Brad Delanghe, Ben Giese, Jason Demas, Lakshman Ramakrishnan, Sandeep Bhatia, Guang-Ting Shih, Tracy C. Denk
  • Patent number: 8832773
    Abstract: A system and method for processing information may include broadcasting information, which indicates program content for each of a plurality of channels communicated via a plurality of transport streams, to a plurality of processors. The plurality of processors identify which of the program content is associated with a particular one of the plurality of channels in each of the plurality of transport streams. The broadcasted information may be stored in a table in memory. The broadcasted information may include a packet identifier (PID) and/or a processor identifier associated with the PID that identifies at least one of the plurality of processors, such as parsers. The information may be stored in a table in memory prior to the broadcasting. The table may be indexed according to the plurality of channels.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Francis Chi-Wai Cheung, Rajesh Mamidwar, Iue-Shuenn I. Chen
  • Patent number: 8705791
    Abstract: A device such as a set-top-box, digital TV, DVD player, multi-media player, cellular telephone or digital cinema player that may handle data such as multimedia data and/or audio/video signals, may determine its location. The device may determine its location based on GPS information and may send its location it to an external entity, for example, a service provider. The device may generate a watermark comprising its determined location and may embed or insert the watermark within the data. AlsoIn addition, the generated watermark may comprise one or more of a unique identifier for the device, a source of the data, for example, a service provider, a date and a time. The watermark may be secured via processing, for example, the watermark may be encrypted prior to being embedded. The data may be compressed when embedding the watermark. The watermark embedding process may be handled via a secure embedded processor and/or secure code.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: April 22, 2014
    Assignee: Broadcom Corporation
    Inventors: Rajesh Mamidwar, Xuemin Chen, Robert Brownhill
  • Publication number: 20130312053
    Abstract: A multiplexed transport interface (MTSIF) may be utilized during communication between a demodulation module and a video processing system-on-chip (SoC). The MTSIF may enable concurrent demodulation of a plurality of input modulated video streams, via a plurality of demodulator chips within the demodulation module, by multiplexing data generated by the demodulator chips via the MTSIF during communication between the demodulator module and the video processing SoC. The MTSIF may also be utilized for communicating control signals, which may be used in controlling and/or managing operations of the demodulation module, the video processing SoC, and/or the MTSIF. Communication via the MTSIF may be synchronized. Packets communicated via the MTSIF may be timestamped. Timestamp counters may be used in the demodulation module and the video processing SoC to generate and/or track timestamps in communicated packets. The timestamp counter may be synchronized, using control signals communicated via the MTSIF.
    Type: Application
    Filed: July 29, 2013
    Publication date: November 21, 2013
    Applicant: Broadcom Corporation
    Inventors: RAJESH MAMIDWAR, STEPHEN EDWARD KRAFFT
  • Publication number: 20130235884
    Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, channel bonding may be used to bond channels with mixed serial and parallel streams.
    Type: Application
    Filed: November 9, 2012
    Publication date: September 12, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Rajesh Mamidwar, Xuemin Chen, Anand Tongle, Victor Hou
  • Publication number: 20130235882
    Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures distribute video programming across the communication channels in the bonded channel group based on the dependency of the video data.
    Type: Application
    Filed: November 9, 2012
    Publication date: September 12, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Xuemin Chen, Rajesh Mamidwar
  • Publication number: 20130235887
    Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures distribute data streams to bonded channels that are clocked independently. A system is provided for synchronizing the bonded channels.
    Type: Application
    Filed: November 9, 2012
    Publication date: September 12, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Rajesh Mamidwar, Xuemin Chen, Victor Hou, Guangcai Zhou
  • Publication number: 20130239150
    Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, different network types may be channel bonded to function as a single logical channel.
    Type: Application
    Filed: November 9, 2012
    Publication date: September 12, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Xuemin Chen, Rajesh Mamidwar, Victor Hou
  • Patent number: 8526303
    Abstract: Herein described are at least a system and a method for regulating data flow in a data pipeline that may be used in a video processing system. The system comprises a processor, one or more data buffers, and one or more processing stations. The one or more data buffers may be used to buffer corresponding processing stations. Each of the one or more processing stations may comprise a switching circuitry that is used to inhibit data transmission when a hold signal is received from the processor. The processor may send the signal in response to a feedback control signal generated by the one or more processing stations. The method may comprise determining if the processing time of a processing station exceeds a specified time. The method further comprises generating a feedback control signal to a processor if the specified time is exceeded.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: September 3, 2013
    Assignee: Broadcom Corporation
    Inventors: Steve Walter Rodgers, Rajesh Mamidwar
  • Patent number: 8509435
    Abstract: Methods and systems for a transport single key change point for all package identifier channels are disclosed and may include descrambling a received transport stream comprising multiple package identifier (PID) channels with multiple key change points, and synchronizing at least a portion of the multiple key change points to occur at a common time. The transport stream may be conditional access or copy protect scrambled. The timing of the key change points may be synchronized by modifying one or more scrambling control bits for the descrambled received transport stream. At least one PID channel in said descrambled received transport stream may be re-scrambled utilizing one or more of the scrambling control bits, and a portion of the PID channels may bypass the re-scrambling. The re-scrambling may include one or more of CP re-scrambling and CA re-scrambling. Each PID channel may be de-scrambled and/or re-scrambled utilizing a separate key.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: August 13, 2013
    Assignee: Broadcom Corporation
    Inventor: Rajesh Mamidwar
  • Patent number: 8499325
    Abstract: A multiplexed transport interface (MTSIF) may be utilized during communication between a demodulation module and a video processing system-on-chip (SoC). The MTSIF may enable concurrent demodulation of a plurality of input modulated video streams, via a plurality of demodulator chips within the demodulation module, by multiplexing data generated by the demodulator chips via the MTSIF during communication between the demodulator module and the video processing SoC. The MTSIF may also be utilized for communicating control signals, which may be used in controlling and/or managing operations of the demodulation module, the video processing SoC, and/or the MTSIF. Communication via the MTSIF may be synchronized. Packets communicated via the MTSIF may be timestamped. Timestamp counters may be used in the demodulation module and the video processing SoC to generate and/or track timestamps in communicated packets. The timestamp counter may be synchronized, using control signals communicated via the MTSIF.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: July 30, 2013
    Assignee: Broadcom Corporation
    Inventors: Rajesh Mamidwar, Stephen Edward Krafft
  • Publication number: 20130064306
    Abstract: An encoder arrangement is provided for streaming media. A variable rate encoder is configured and arranged to receive an input data stream and output an encoded data stream. A buffer is arranged to receive the encoded data stream and output a buffered data stream. A control means monitors depth of the buffer and controls the encoding rate of the variable rate encoder so that encoding is carried out at a rate appropriate to an available link rate, thereby providing smooth transition of data stream quality as link conditions change.
    Type: Application
    Filed: September 29, 2011
    Publication date: March 14, 2013
    Applicant: Broadcom Corporation
    Inventors: Rajesh Mamidwar, Sanjeev Sood
  • Publication number: 20130033642
    Abstract: Various systems and methods are provided for transmission of related data components across independent streams. In one embodiment, among others, a transmitting device may separate transmission data into related data components and transmit each related data component in an associated transport stream. Each related data component includes a synchronization tag associated with synchronization of the related data component within the transmission data. In another embodiment, a receiving device may receive related data components transmitted in separate transport streams and decode the related data components based at least in part upon a synchronization tag included in each related data component.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 7, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Wade Wan, Rajesh Mamidwar, Xuemin Chen, Marcus Kellerman, Brett Tischler
  • Patent number: 8370881
    Abstract: A STB resource sharing (RS) group of a home network comprises a plurality of STBs. In the STB RS group, a STB communicates with one or more other STBs to mutually share available device resources comprising hardware and software resources, and/or capabilities. The STB functions as an elected master (EM) or a STB RS client in the STB RS group. As an EM, the STB receives advertisements from other STBs to determine available resources. The determined available resources are announced to other STBs in the STB RS group. The STB manages the use of the determined available resources according to resource sharing requests received from other STBs. As a STB RS client, the STB advertises inherent resources to an EM of the STB RS group. The STB receives announcements from the EM for available resources in the STB RS group. The STB shares its available resources, accordingly.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: February 5, 2013
    Assignee: Broadcom Corporation
    Inventors: Predrag Kostic, Nick Herodotou, Rajesh Mamidwar, Sanjeev Sood
  • Publication number: 20130011005
    Abstract: A device such as a set-top-box, digital TV, DVD player, multi-media player, cellular telephone or digital cinema player that may handle data such as multimedia data and/or audio/video signals, may determine its location. The device may determine its location based on GPS information and send it to an external entity, for example, a service provider. The device may generate a watermark comprising its determined location and may embed or insert the watermark within the data. Also, the generated watermark may comprise one or more of a unique identifier for the device, a source of the data, for example, a service provider, a date and a time. The watermark may be secured via processing, for example, the watermark may be encrypted prior to being embedded. The data may be compressed when embedding the watermark. The watermark embedding process may be handled via a secure embedded processor and/or secure code.
    Type: Application
    Filed: August 16, 2012
    Publication date: January 10, 2013
    Applicant: Broadcom Corporation
    Inventors: Rajesh Mamidwar, Xuemin Chen, Robert Brownhill
  • Patent number: 8270664
    Abstract: A device such as a set-top-box, digital TV, DVD player, multi-media player, cellular telephone or digital cinema player that may handle data such as multimedia data and/or audio/video signals, may determine its location. The device may determine its location based on GPS information and may send its location to an external entity, for example, a service provider. The device may generate a watermark comprising its determined location and may embed or insert the watermark within the data. In addition, the generated watermark may comprise one or more of a unique identifier for the device, a source of the data, for example, a service provider, a date and a time. The watermark may be secured via processing, for example, the watermark may be encrypted prior to being embedded. The data may be compressed when embedding the watermark. The watermark embedding process may be handled via a secure embedded processor and/or secure code.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: September 18, 2012
    Assignee: Broadcom Corporation
    Inventors: Rajesh Mamidwar, Xuemin Chen, Robert Brownhill
  • Publication number: 20120216038
    Abstract: A home gateway may be used to handle at least a portion of processing of content obtained for consumption by client devices serviced via the home gateway. The home gateway may receive a single copy of content having a first format, and may convert the received content to one or more other formats suitable for presentation by at least one of the client devices based on knowledge of the client devices. The home gateway may maintain secure and/or protected access of the content handled via the home gateway. During protected access the home gateway may partition the content into a plurality of encrypted segments that are forwarded separately to the client devices. The client devices may utilize a corresponding plurality of encryption keys for decrypting the encrypted segments. The encryption keys may be obtained from an external key server. The home gateway may also generate the encryption keys.
    Type: Application
    Filed: June 28, 2011
    Publication date: August 23, 2012
    Inventors: Xuemin Chen, Stephane Rodgers, Rajesh Mamidwar