Patents by Inventor Bassel Haddad
Bassel Haddad 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: 9536535Abstract: Described herein are systems, methods and apparatus for decoding in-band on-channel signals and extracting audio and data signals. Memory requirements are reduced by selectively filtering a bit stream of data in the signal so that services of interest which are encoded therein are processed. A single pool of memory may be shared between physical layer and data link layer processing. Memory in this pool may be allocated dynamically between processing of data at the physical and data link layers. When the available memory is not sufficient to support the required services, the dynamic allocation allows for graceful degradation.Type: GrantFiled: March 30, 2012Date of Patent: January 3, 2017Assignee: Intel IP CorporationInventors: Dongsheng Bi, Binuraj Ravindran, Bassel Haddad
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Publication number: 20140012570Abstract: Described herein are systems, methods and apparatus for decoding in-band on-channel signals and extracting audio and data signals. Memory requirements are reduced by selectively filtering a bit stream of data in the signal so that services of interest which are encoded therein are processed. A single pool of memory may be shared between physical layer and data link layer processing. Memory in this pool may be allocated dynamically between processing of data at the physical and data link layers. When the available memory is not sufficient to support the required services, the dynamic allocation allows for graceful degradation.Type: ApplicationFiled: March 30, 2012Publication date: January 9, 2014Inventors: Dongsheng Bi, Bomiraj Ravindran, Bassel Haddad
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Patent number: 7864647Abstract: A method and apparatus for calibrating the slice level of a pulse detector monitors the quality of the detected pulse signal to determine and optimize slice level. The method practiced may include two parts, including a coarse stage and a fine stage. The method practiced may further include a continuous adjustment mode of operation.Type: GrantFiled: August 9, 2005Date of Patent: January 4, 2011Assignee: Zoran CorporationInventors: Bassel Haddad, Andrew Popplewell
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Patent number: 7804756Abstract: A method and apparatus for recording data at specific locations on a DVD includes selectively detecting the occurrence of wobble sync during a window computed from previous occurrences of wobble sync and eight-to-fourteen modulation sync. The method and apparatus also uses a phase-locked loop to recover the wobble signal, including wobble sync, and computes phase drift between wobble sync and eight-to-fourteen modulation sync and applies a compensation profile, compatible with a read clock phase-locked loop, to the wobble phase-locked loop.Type: GrantFiled: October 11, 2005Date of Patent: September 28, 2010Assignee: Zoran CorporationInventors: Bassel Haddad, Jacob Finkelstein
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Patent number: 7697650Abstract: A phase measurement system for measuring phase between an input signal having a frequency and a reference signal having a substantially different frequency includes: a phase comparator having an output representing a time between a crossing of a first threshold by a clock derived from the reference signal and a predetermined time along an interval from a first sample to a second sample, where the input signal crosses a second threshold on the interval; an interpolator having an output indicative of an interpolated time of the second-threshold-crossing on the interval in the input signal; and a phase calculator which computes the phase difference by combining the phase comparator output and the interpolator output.Type: GrantFiled: March 24, 2006Date of Patent: April 13, 2010Assignee: Zoran CorporationInventors: Bassel Haddad, Jacob Finkelstein
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Patent number: 7668053Abstract: An automatic gain control (AGC) controls the signal amplitude at the input to an analog to digital converter (ADC) input by applying a gain that produces a desired overall amplitude resolution of the patterns actually presented by the signal delivered by the ADC converter. Short RLL patterns will have sufficient resolution for reliable extraction as a result of having sufficient overall amplitude, which thereby strengthens the ability of the read channel to correctly extract data. Moreover, the system determines correct AGC settings responsive to measurements of user data parameters. The system also detects and corrects for DC offsets in the signal whose gain is controlled.Type: GrantFiled: June 3, 2005Date of Patent: February 23, 2010Assignee: Zoran CorporationInventor: Bassel Haddad
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Publication number: 20070223634Abstract: A phase measurement system for measuring a phase difference between an input signal and a reference signal, comprises: a phase comparator having a first input receiving a first sample of the input signal and a second sample of the input signal and having a second input receiving a clock derived from the reference signal, the phase comparator having an output representing a time between a crossing of a first threshold by the clock and a predetermined time along an interval from the first sample to the second sample where the input signal crosses a second threshold on the interval; an interpolator coupled to the first input and having an output indicative of an interpolated time of the second-threshold-crossing on the interval in the input signal; and a phase calculator coupled to the phase comparator output and the interpolator output and which computes the phase difference by combining the phase comparator output and the interpolator output.Type: ApplicationFiled: March 24, 2006Publication date: September 27, 2007Applicant: Zoran CorporationInventors: Bassel Haddad, Jacob Finkelstein
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Publication number: 20070081438Abstract: A method and apparatus for recording data at specific locations on a DVD includes selectively detecting the occurrence of wobble sync during a window computed from previous occurrences of wobble sync and eight-to-fourteen modulation sync. The method and apparatus also uses a phase-locked loop to recover the wobble signal, including wobble sync, and computes phase drift between wobble sync and eight-to-fourteen modulation sync and applies a compensation profile, compatible with a read clock phase-locked loop, to the wobble sync phase-locked loop.Type: ApplicationFiled: October 11, 2005Publication date: April 12, 2007Applicant: ZORAN CORPORATIONInventors: Bassel Haddad, Jacob Finkelstein
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Publication number: 20070047400Abstract: Abstract of the Disclosure A method and apparatus for calibrating the slice level of a pulse detector monitors the quality of the detected pulse signal to determine and optimize slice level. The method practiced may include two parts, including a coarse stage and a fine stage. The method practiced may further include a continuous adjustment mode of operation.Type: ApplicationFiled: August 9, 2005Publication date: March 1, 2007Applicant: Zoran CorporationInventors: Bassel Haddad, Andrew Popplewell
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Publication number: 20060274620Abstract: An automatic gain control (AGC) controls the signal amplitude at the input to an analog to digital converter (ADC) input by applying a gain that produces a desired overall amplitude resolution of the patterns actually presented by the signal delivered by the ADC converter. Short RLL patterns will have sufficient resolution for reliable extraction as a result of having sufficient overall amplitude, which thereby strengthens the ability of the read channel to correctly extract data. Moreover, the system determines correct AGC settings responsive to measurements of user data parameters. The system also detects and corrects for DC offsets in the signal whose gain is controlled.Type: ApplicationFiled: June 3, 2005Publication date: December 7, 2006Applicant: ZORAN CORPORATIONInventor: Bassel Haddad