Patents by Inventor Alan Y. Kwentus
Alan Y. Kwentus 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: 11190528Abstract: This disclosure presents a technique to include a packet sequence number and an integrity check value (ICV) into a data frame while maintaining a total number of transmitted bytes. A transmitting device includes circuitry that generates the ICV, inserts a transmitter packet sequence number into the data frame that includes a data packet including a payload, the data packet following a preamble and an interpacket gap (IPG) following the data packet. The circuitry also inserts the ICV into the data frame, and transmits the data frame, wherein inserting the ICV into the data frame reduces a size of the IPG while maintaining a total number of bytes in the data frame. A receiving device includes circuitry that receives the data frame, compares a receiver packet sequence number to the transmitter packet sequence number, and determines whether the transmitter packet sequence number is valid based on the receiver packet sequence number.Type: GrantFiled: October 26, 2018Date of Patent: November 30, 2021Assignee: Avago Technologies International Sales Pte. LimitedInventors: Jeffrey Tzeng, Abhijit K. Choudhury, Alan Y. Kwentus
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Publication number: 20190166134Abstract: This disclosure presents a technique to include a packet sequence number and an integrity check value (ICV) into a data frame while maintaining a total number of transmitted bytes. A transmitting device includes circuitry that generates the ICV, inserts a transmitter packet sequence number into the data frame that includes a data packet including a payload, the data packet following a preamble and an interpacket gap (IPG) following the data packet. The circuitry also inserts the ICV into the data frame, and transmits the data frame, wherein inserting the ICV into the data frame reduces a size of the IPG while maintaining a total number of bytes in the data frame. A receiving device includes circuitry that receives the data frame, compares a receiver packet sequence number to the transmitter packet sequence number, and determines whether the transmitter packet sequence number is valid based on the receiver packet sequence number.Type: ApplicationFiled: October 26, 2018Publication date: May 30, 2019Applicant: Avago Technologies International Sales Pte. LimitedInventors: Jeffrey TZENG, Abhijit K. CHOUDHURY, Alan Y. KWENTUS
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Patent number: 9197366Abstract: FEC (Forward Error Correction) decoder with dynamic parameters. A novel means by which FEC parameters may be encoded into, and subsequently extracted from, a signal stream to allow for adaptive changing of any 1 or more operational parameters that govern communications across a communication channel. FEC parameters are encoded directly into a data frame such that the data frame is treated identical to all other data frames within the signal stream. When the data frame actually includes FEC parameters, it is characterized as a CP (Control Packet) type. For example, when decoding an MPEG stream, an MPEG block that includes FEC parameters, that MPEG block is characterized as a CP MPEG block. The means by which FEC parameters are encoded and extracted from the signal stream allows for much easier adaptive modification of the manner by which signal are encoded, modulated, and processed within a communication system.Type: GrantFiled: July 8, 2013Date of Patent: November 24, 2015Assignee: BROADCOM CORPORATIONInventors: Hiroshi Suzuki, Alan Y. Kwentus, Stephen Edward Krafft, Kevin M. Eddy, Steven T. Jaffe
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Publication number: 20130297991Abstract: FEC (Forward Error Correction) decoder with dynamic parameters. A novel means by which FEC parameters may be encoded into, and subsequently extracted from, a signal stream to allow for adaptive changing of any 1 or more operational parameters that govern communications across a communication channel. FEC parameters are encoded directly into a data frame such that the data frame is treated identical to all other data frames within the signal stream. When the data frame actually includes FEC parameters, it is characterized as a CP (Control Packet) type. For example, when decoding an MPEG stream, an MPEG block that includes FEC parameters, that MPEG block is characterized as a CP MPEG block. The means by which FEC parameters are encoded and extracted from the signal stream allows for much easier adaptive modification of the manner by which signal are encoded, modulated, and processed within a communication system.Type: ApplicationFiled: July 8, 2013Publication date: November 7, 2013Applicant: BROADCOM CORPORATIONInventors: Hiroshi Suzuki, Alan Y. Kwentus, Stephen Edward Krafft, Kevin M. Eddy, Steven T. Jaffe
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Patent number: 8484538Abstract: FEC (Forward Error Correction) decoder with dynamic parameters. A novel means by which FEC parameters may be encoded into, and subsequently extracted from, a signal stream to allow for adaptive changing of any 1 or more operational parameters that govern communications across a communication channel. FEC parameters are encoded directly into a data frame such that the data frame is treated identical to all other data frames within the signal stream. When the data frame actually includes FEC parameters, it is characterized as a CP (Control Packet) type. For example, when decoding an MPEG stream, an MPEG block that includes FEC parameters, that MPEG block is characterized as a CP MPEG block. The means by which FEC parameters are encoded and extracted from the signal stream allows for much easier adaptive modification of the manner by which signal are encoded, modulated, and processed within a communication system.Type: GrantFiled: June 27, 2007Date of Patent: July 9, 2013Assignee: Broadcom CorporationInventors: Hiroshi Suzuki, Alan Y. Kwentus, Stephen Edward Krafft, Kevin M. Eddy, Steven T. Jaffe
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Patent number: 8300657Abstract: A modified ranging request in a broadband communications system. The modified ranging request includes a header, a management message header attached to the header, a management message payload attached to the management message header, and a CRC attached to the management message payload. The management message header enables bandwidth requests to be made by subscriber equipment without contention. The management message header also includes state of health information on the status of a downstream transmission for enabling a central location to determine how to assign subscribers to queues in an adaptive modulation scheme.Type: GrantFiled: April 12, 2010Date of Patent: October 30, 2012Assignee: Broadcom CorporationInventors: Mark R. Dale, David L. Hartman, Alan Gin, Jen-chieh Chien, Anders Hebsgaard, Rocco J. Brescia, Jr., Cho-Hsin J. Wang, Alan Y. Kwentus, Dorothy D. Lin
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Patent number: 8014449Abstract: Communications signal transcoder. A solution is provided to transcode a signal from a first signal type to a second signal type to ensure proper interfacing between devices that may operate using different signal types. For example, within a communication system, a first signal type (having a first modulation type, e.g., 8 PSK) may be received. The transcoder then ensures that this signal, after it has undergone any initial processing (such as tuning, down-converting, decoding, and so on), is encoded into a second signal type (having a second modulation type, e.g., QPSK) such that it can interface properly with a device for which the received signal is intended. This transcoder functionality may be implemented within discrete components, or it may alternatively be integrated within a functional block of an integrated circuit. This functionality may be implemented in a variety of communication systems including satellite, cable television, Internet, and others.Type: GrantFiled: June 29, 2010Date of Patent: September 6, 2011Assignee: Broadcom CorporationInventors: Alan Y. Kwentus, Charles Alan Brooks, Steven T. Jaffe, Stephen Edward Krafft
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Publication number: 20100267330Abstract: Communications signal transcoder. A solution is provided to transcode a signal from a first signal type to a second signal type to ensure proper interfacing between devices that may operate using different signal types. For example, within a communication system, a first signal type (having a first modulation type, e.g., 8 PSK) may be received. The transcoder then ensures that this signal, after it has undergone any initial processing (such as tuning, down-converting, decoding, and so on), is encoded into a second signal type (having a second modulation type, e.g., QPSK) such that it can interface properly with a device for which the received signal is intended. This transcoder functionality may be implemented within discrete components, or it may alternatively be integrated within a functional block of an integrated circuit. This functionality may be implemented in a variety of communication systems including satellite, cable television, Internet, and others.Type: ApplicationFiled: June 29, 2010Publication date: October 21, 2010Applicant: BROADCOM CORPORATIONInventors: Alan Y. Kwentus, Charles Alan Brooks, Steven Jaffe, Stephen Edward Krafft
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Publication number: 20100198974Abstract: A modified ranging request in a broadband communications system. The modified ranging request includes a header, a management message header attached to the header, a management message payload attached to the management message header, and a CRC attached to the management message payload. The management message header enables bandwidth requests to be made by subscriber equipment without contention. The management message header also includes state of health information on the status of a downstream transmission for enabling a central location to determine how to assign subscribers to queues in an adaptive modulation scheme.Type: ApplicationFiled: April 12, 2010Publication date: August 5, 2010Applicant: Broadcom CorporationInventors: Mark R. DALE, David L. Hartman, Alan Gin, Jen-Chieh Chien, Anders Hebsgaard, Rocco J. Brescia, JR., Cho-Hsin J. Wang, Alan Y. Kwentus, Dorothy D. Lin
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Patent number: 7751477Abstract: Communications signal transcoder. A solution is provided to transcode a signal from a first signal type to a second signal type to ensure proper interfacing between devices that may operate using different signal types. For example, within a communication system, a first signal type (having a first modulation type, e.g., 8 PSK) may be received. The transcoder then ensures that this signal, after it has undergone any initial processing (such as tuning, down-converting, decoding, and so on), is encoded into a second signal type (having a second modulation type, e.g., QPSK) such that it can interface properly with a device for which the received signal is intended. This transcoder functionality may be implemented within discrete components, or it may alternatively be integrated within a functional block of an integrated circuit. This functionality may be implemented in a variety of communication systems including satellite, cable television, Internet, and others.Type: GrantFiled: December 15, 2003Date of Patent: July 6, 2010Assignee: Broadcom CorporationInventors: Alan Y. Kwentus, Charles Alan Brooks, Steven Jaffe, Stephen Edward Krafft
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Patent number: 7729373Abstract: A modified ranging request in a broadband communications system. The modified ranging request includes a header, a management message header attached to the header, a management message payload attached to the management message header, and a CRC attached to the management message payload. The management message header enables bandwidth requests to be made by subscriber equipment without contention. The management message header also includes state of health information on the status of a downstream transmission for enabling a central location to determine how to assign subscribers to queues in an adaptive modulation scheme.Type: GrantFiled: July 2, 2002Date of Patent: June 1, 2010Assignee: Broadcom CorporationInventors: Mark R Dale, David L Hartman, Alan Gin, Jen-chieh Chien, Anders Hebsgaard, Rocco J Brescia, Jr., Cho-Hsin J Wang, Alan Y Kwentus, Dorothy D Lin
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Patent number: 7302013Abstract: Digital signal processing for television signals includes digital feedback loops. Analog information signals are oversampled to provide digital signals. The digital signals are introduced to a digital carrier recovery loop and a digital symbol recovery loop. The gain of the digital signals is also regulated in a feedback loop. The digital signals are processed to recover the data in the data signals. The use of digital feedback loops allows information recovered from the digital signals to be precise. Carrier signals can be directly demodulated to produce baseband inphase and quadrature signals, or first downconverted to produce intermediate frequency signals.Type: GrantFiled: December 30, 2003Date of Patent: November 27, 2007Assignee: Broadcom CorporationInventors: Henry Samueli, Alan Y. Kwentus, Thomas D. Kwon
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Patent number: 7257764Abstract: FEC (Forward Error Correction) decoder with dynamic parameters. A novel means by which FEC parameters may be encoded into, and subsequently extracted from, a signal stream to allow for adaptive changing of any 1 or more operational parameters that govern communications across a communication channel. FEC parameters are encoded directly into a data frame such that the data frame is treated identical to all other data frames within the signal stream. When the data frame actually includes FEC parameters, it is characterized as a CP (Control Packet) type. For example, when decoding an MPEG stream, an MPEG block that includes FEC parameters, that MPEG block is characterized as a CP MPEG block. The means by which FEC parameters are encoded and extracted from the signal stream allows for much easier adaptive modification of the manner by which signal are encoded, modulated, and processed within a communication system.Type: GrantFiled: August 12, 2004Date of Patent: August 14, 2007Assignee: Broadcom CorporationInventors: Hiroshi Suzuki, Alan Y. Kwentus, Stephen Edward Krafft, Kevin M. Eddy, Steven T. Jaffe
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Publication number: 20040161031Abstract: Communications signal transcoder. A solution is provided to transcode a signal from a first signal type to a second signal type to ensure proper interfacing between devices that may operate using different signal types. For example, within a communication system, a first signal type (having a first modulation type, e.g., 8 PSK) may be received. The transcoder then ensures that this signal, after it has undergone any initial processing (such as tuning, down-converting, decoding, and so on), is encoded into a second signal type (having a second modulation type, e.g., QPSK) such that it can interface properly with a device for which the received signal is intended. This transcoder functionality may be implemented within discrete components, or it may alternatively be integrated within a functional block of an integrated circuit. This functionality may be implemented in a variety of communication systems including satellite, cable television, Internet, and others.Type: ApplicationFiled: December 15, 2003Publication date: August 19, 2004Inventors: Alan Y. Kwentus, Charles Alan Brooks, Steven Jaffe, Stephen Edward Kraff
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Publication number: 20040151263Abstract: Carrier signals are modulated by information (e.g., television) signals in a particular frequency range. The information signals are oversampled at a first frequency greater than any of the frequencies in the particular frequency range to provide digital signals at a second frequency. The digital signals are introduced to a carrier recovery loop which provides a feedback to regulate the frequency of the digital signals at the second frequency. The digital signals are introduced to a symbol recovery loop which provides a feedback to maintain the time for the production of the digital signals in the middle of the data signals. The gain of the digital signals is also regulated in a feedback loop. The digital signals re processed to recover the data in the data signals. By providing digital feedbacks, the information recovered from the digital signals can be quite precise. In one embodiment, the carrier signals are demodulated to produce baseband inphase and quadrature signals.Type: ApplicationFiled: December 30, 2003Publication date: August 5, 2004Applicant: Broadcom CorporationInventors: Henry Samueli, Alan Y. Kwentus, Thomas D. Kwon
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Patent number: 6714608Abstract: Carrier signals are modulated by information (e.g., television) signals in a particular frequency range. The information signals are oversampled at a first frequency greater than any of the frequencies in the particular frequency range to provide digital signals at a second frequency. The digital signals are introduced to a carrier recovery loop which provides a feedback to regulate the frequency of the digital signals at the second frequency. The digital signals are introduced to a symbol recovery loop which provides a feedback to maintain the time for the production of the digital signals in the middle of the data signals. The gain of the digital signals is also regulated in a feedback loop. The digital signals are processed to recover the data in the data signals. By providing digital feedbacks, the information recovered from the digital signals can be quite precise. In one embodiment, the carrier signals are demodulated to produce baseband inphase and quadrature signals.Type: GrantFiled: January 27, 1998Date of Patent: March 30, 2004Assignee: Broadcom CorporationInventors: Henry Samueli, Alan Y. Kwentus, Thomas D. Kwon
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Publication number: 20040006771Abstract: A modified ranging request in a broadband communications system. The modified ranging request includes a header, a management message header attached to the header, a management message payload attached to the management message header, and a CRC attached to the management message payload. The management message header enables bandwidth requests to be made by subscriber equipment without contention. The management message header also includes state of health information on the status of a downstream transmission for enabling a central location to determine how to assign subscribers to queues in an adaptive modulation scheme.Type: ApplicationFiled: July 2, 2002Publication date: January 8, 2004Applicant: Broadcom CorporationInventors: Mark R. Dale, David L. Hartman, Alan Gin, Jen-Chieh Chien, Anders Hebsgaard, Rocco J. Brescia, Cho-Hsin J. Wang, Alan Y. Kwentus, Dorothy D. Lin
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Patent number: 5737253Abstract: The present invention comprises a direct digital frequency synthesizer. A phase accumulator provides a normalized angle .theta. to a sine/cosine generator that outputs the value of the sine/cosine function at the provided angle. The she/cosine generator in a preferred embodiment comprises a plurality of multiplierless butterfly and carry-save stages in cascade that perform angle rotations on a phasor on the unit circle whose x and y coordinates correspond to cosine and sine values. To calculate the sine and cosine values at a particular angle .theta.=b.sub.1 .theta..sub.1 +b.sub.2 .theta..sub.2 +. . . +b.sub.N .theta..sub.N where b.sub.k .epsilon. {0, 1} are the binary bits and the .theta..sub.k =2.sup.-k are the associated positional weights, each of the butterfly and carry-save stages rotate the phasor by an amount .theta..sub.k =2.sup.-k. The direction of the rotation, clockwise or counter-clockwise, depends upon the value of the binary bits b.sub.k.Type: GrantFiled: August 30, 1995Date of Patent: April 7, 1998Assignee: Pentomics, Inc.Inventors: Avanindra Madisetti, Alan Y. Kwentus