1
Dwight W Decker, Payne Freret, Dirk Hughes Hartogs, Mark B Flowers, Frederick L Mueller: Speech and data multiplexor optimized for use over impaired and bandwidth restricted analog channels. Telebit Corporation, Donald C Feix, July 12, 1988: US04757495 (277 worldwide citation)

The present invention relates to an apparatus and method for the simultaneous transmission of analog speech and modulated data, such apparatus and method being optimized for use over impaired and bandwidth restricted analog channels, or digital representations of such channels. In each instance of u ...


2
Jacky S Chow, John A C Bingham, Mark B Flowers, John M Cioffi: Mitigating clipping and quantization effects in digital transmission systems. Amati Communications Corporation, Hickman Beyer & Weaver, April 22, 1997: US05623513 (48 worldwide citation)

A transmission system includes transmit and receive paths coupled via a hybrid circuit to a bidirectional transmission path. The transmit path includes a digital-to-analog converter (DAC) having a given range and precision. The transmit path signal is limited and truncated to this range and precisio ...


3
Mark B Flowers, John A C Bingham, Michael D Agah: Method and apparatus for randomized oversampling. Amati Communications Corporation, Beyer & Weaver, May 19, 1998: US05754592 (11 worldwide citation)

An oversampling technique that improves signal-to-quantization noise ratio without requiring substantial amounts of processing power is disclosed. The oversampling technique determines the oversample values by successively scaling the previous value using a scaling factor. The effect of the inventio ...


4
Mark B Flowers, Mark Mallory, Mark Brady, John M Cioffi, Mehdi Mohseni: DSL noise cancellation. North Weber & Baugh, November 14, 2017: US09819388

A method and apparatus in a noise cancellation system that receives a noise reference signal via a noise reference signal input port, and performs at least one of procedures a and b set forth below for reducing noise in a DSL data signal transmitted on a DSL transmission line to which the noise canc ...


5
Mark B Flowers, Mark H Brady, Marc H Goldburg, Mark P Mallory, Ardavan Maleki Tehrani: Non-invasive diagnostic transmission line testing. Adaptive Spectrum and Signal Alignment, Blakely Sokoloff Taylor & Zafman, July 29, 2014: US08792620

A probing signal transmitted on a twisted pair telephone line in a DSL system is reflected and received at a DSL device. An estimate of one of a DSL data transmission signal or DSL synch symbol transmission signal is removed from the received probing signal to recover the reflected probing signal. T ...


6
Chan Soo Hwang, Geoffrey G Moyer, Mark B Flowers, Mehdi Mohseni: Apparatus, systems and methods of common-mode rejection ratio based diagnostics. Adaptive Spectrum and Signal Alignment, Green Howard & Mughal, July 12, 2016: US09391834

In accordance with embodiments disclosed herein, there are provided apparatus, systems and methods for detecting a boundary condition via common mode diagnostics; and to apparatus, systems and methods for detecting a fault condition via common-mode rejection ratio diagnostics. For example, in one em ...


7
Mark B Flowers, John M Cioffi, Seong Taek Chung: DSL ring signal compatibility. Adaptive Spectrum and Signal Alignment, Blakely Sokoloff Taylor & Zafman, January 29, 2013: US08363788

A method of detecting that a condition exists that adversely impacts a digital subscriber line service (DSL) over a telephone line shared by the DSL service and a telephone service. The method includes obtaining information regarding operation of the DSL service over a plurality of different time pe ...


8
Chan Soo Hwang, Geoffrey G Moyer, Mark B Flowers: Apparatus, systems and methods of common mode based diagnostics. Adaptive Spectrum and Signal Alignment, Green Howard & Mughal, November 8, 2016: US09491283

In accordance with embodiments disclosed herein, there are provided apparatus, systems and methods for detecting a boundary condition via common mode diagnostics; and to apparatus, systems and methods for detecting a fault condition via common-mode rejection ratio diagnostics. For example, in one em ...


9
Chan Soo Hwang, Mithat Dogan, John M Cioffi, Mark B Flowers, Sina Barkeshli: Apparatus, systems and methods for impulse noise detection and mitigation. Adaptive Spectrum and Signal Alignment, Green Howard & Mughal, June 14, 2016: US09369232

In accordance with embodiments disclosed herein, there are provided apparatus, systems and methods for impulse noise detection and mitigation. For example, in one embodiment such means include, means for detecting impulse noise; means for classifying the detected impulse noise into one of a pluralit ...


10
Mark B Flowers, John M Cioffi, Seong Taek Chung: Dsl ring signal compatibility. Blakely Sokoloff Taylor & Zafman, June 10, 2010: US20100142601-A1

A method of detecting that a condition exists that adversely impacts a digital subscriber line service (DSL) over a telephone line shared by the DSL service and a telephone service. The method includes obtaining information regarding operation of the DSL service over a plurality of different time pe ...



Click the thumbnails below to visualize the patent trend.