Resumes
Resumes
Mark Gonikberg Phones & Addresses
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19450 Black Rd, Los Gatos, CA 95033
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Portola Valley, CA
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Incline Village, NV
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1502 Taylor St, San Francisco, CA 94133 (650) 559-9738
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Sunnyvale, CA
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Los Altos Hills, CA
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Washoe, NV
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Woodside, CA
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Mountain View, CA
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Santa Clara, CA
Publications
Us Patents
Digital Connection Detection Technique
View pageUS Patent:
6504865, Jan 7, 2003
Filed:
Feb 24, 1999
Appl. No.:
09/256922
Inventors:
Haixiang Liang - San Jose CA
Mark Gonikberg - Mountain View CA
Mark Gonikberg - Mountain View CA
Assignee:
Altocom, Inc. - Irvine CA
International Classification:
H04B 138
US Classification:
375222, 375220, 375216
Abstract:
A technique is described for reliably determining whether a direct digital connection exists between a transmitting server modem and a receiving client modem. Such a determination is an essential part of the training procedure for modems that conform to ITU-T Recommendation V. 90 but is also applicable to other data communications configurations and equipment. In some configurations in accordance with the present invention, segments of a modem training signal, L L are used to make the determination.
Efficient Reduced State Maximum Likelihood Sequence Estimator
View pageUS Patent:
6618451, Sep 9, 2003
Filed:
Feb 13, 1999
Appl. No.:
09/249990
Inventors:
Mark Gonikberg - Mountain View CA, 94043
International Classification:
H03D 100
US Classification:
375341, 375229
Abstract:
A reduced state maximum likelihood sequence estimator allows the use of improved equalization techniques that provides greatly improved performance for channels with severe attenuation and spectral nulls. The reduced state maximum likelihood sequence estimator retains k states of a total number of K states, k K, with each retained state having an associated state metric. (J)(k ) new states are determined based on k previous states and a most recently received sample, using J transitions, J being a less than L, where L is a size of a symbol alphabet. (J)(k ) new state metrics are determined which are respectively associated with each new state. The new state metrics are compared to a threshold and those states whose metric does not exceed the threshold are retained. The reduced complexity of the MLSE allows for the use of partial response equalizers, e. g. , a partial response class V (PRV) equalizer.
Digital Filter Implementation Suitable For Execution, Together With Application Code, On A Same Processor
View pageUS Patent:
6618739, Sep 9, 2003
Filed:
Feb 22, 2001
Appl. No.:
09/790281
Inventors:
Mark Gonikberg - Los Altos Hills CA
Haixiang Liang - Palo Alto CA
Haixiang Liang - Palo Alto CA
Assignee:
AltoCom, Inc. - Irvine CA
International Classification:
G06F 1710
US Classification:
708303, 708319
Abstract:
A filter is implemented in software on a general purpose processor in a manner which reduces the number of memory accesses as compared to conventional methods. In some realizations, both application code and filter code are executed on a same general purpose processor. The filter code incrementally loads respective portions of input and coefficient vector data from addressable storage into respective registers of the processor and performs successive operations thereupon to accumulate output vector data into other respective registers of the processor. The filter code typically exhibits an execution ratio of less than two input and coefficient data loads per operation to accumulate. In some realizations, the filter code is callable from the application code and provides the application code with a signal processing facility without use of a digital signal processor (DSP).
Deterministic Distortion Insensitive Adaptive Receiver Using Decision Updating
View pageUS Patent:
6865239, Mar 8, 2005
Filed:
Nov 23, 1999
Appl. No.:
09/447142
Inventors:
Mark Gonikberg - Mountain View CA, US
Assignee:
AltoCom, Inc. - Irvine CA
International Classification:
H04B001/10
US Classification:
375350, 375231, 375232, 379 9301, 455439, 455560
Abstract:
A technique has been developed whereby an adaptive receiver may employ decision updating in a manner insensitive to RBS. One realization achieves nearly-ideal training of an adaptive equalizer of a modem during TRNtraining despite potential RBS in a digital portion of the PSTN. Updates in the exemplary realization are based upon the true value of the corresponding equalizer output (the decision) and insensitive to RBS. Adaptive equalizer realizations improve equalizer training by treating the received signal as a sequence of blocks of 24 symbols with 24 corresponding separate decision values. In an exemplary variation, equalizer training begins using a single pair of decision points for coefficient updating. After gross convergence of the equalizer coefficients is achieved the update broadens to include updating each of 24 decision points and the equalizer coefficients.
System And Method For Preventing Telephone Line Blocking By A Modem
View pageUS Patent:
6895085, May 17, 2005
Filed:
Sep 10, 2001
Appl. No.:
09/949911
Inventors:
Mark Gonikberg - Los Altos Hills CA, US
Assignee:
Broadcom Corporation - Irvine CA
International Classification:
H04M011/00
US Classification:
379 9328, 379 9305, 375222
Abstract:
A modem includes a Digital Access Arrangement (DAA) Circuit and modem software that is executed by a processor. When the DAA Circuit detects that the modem software is nonfunctional, it enters an on-hook state to prevent blocking of a coupled telephone line. A nonfunctional state of the modem software is detected when the modem software ceases to interact with the DAA Circuit in an expected manner. In a first operation, the nonfunctional state is determined when the modem software does not reset a count down timer in the DAA Circuit before the count down timer reaches a termination value. In a second operation, the nonfunctional state is determined when the modem software does not access the DAA Circuit before the count down timer reaches the termination value. In a third operation, the nonfunctional state is determined when the modem software ceases writing transmit data to DMA memory.
Method And Apparatus To Identify A Remote Communication Apparatus And Enhance Communication Performance Based On The Identification
View pageUS Patent:
6914933, Jul 5, 2005
Filed:
Sep 8, 2000
Appl. No.:
09/658754
Inventors:
Mark Gonikberg - Los Altos Hills CA, US
Assignee:
Broadcom Corporation - Irvine CA
International Classification:
H04B001/38
US Classification:
375222, 375377
Abstract:
A type or brand of remote communication device is identified by measuring one or more characteristics associated with one or more signals sent by the remote communication device. The measured characteristics differ among different devices and/or manufacturers and are compared to known characteristics of one or more signals associated with known communication devices. Once the remote communication device is identified, the local communication device can enable one or more performance enhancing or deficiency compensation features based on the identity of the remote communication device.
Deterministic Distortion Insensitive Adaptive Receiver Using Decision Updating
View pageUS Patent:
7031416, Apr 18, 2006
Filed:
Feb 25, 2005
Appl. No.:
11/066872
Inventors:
Mark Gonikberg - Los Altos Hills CA, US
Assignee:
Broadcom Corporation - Irvine CA
International Classification:
H04B 1/10
US Classification:
375350
Abstract:
A technique has been developed whereby an adaptive receiver may employ decision updating in a manner insensitive to RBS. One realization achieves nearly-ideal training of an adaptive equalizer of a modem during TRNtraining despite potential RBS in a digital portion of the PSTN. Updates in the exemplary realization are based upon the true value of the corresponding equalizer output (the decision) and insensitive to RBS. Adaptive equalizer realizations improve equalizer training by treating the received signal as a sequence of blocks of 24 symbols with 24 corresponding separate decision values. In an exemplary variation, equalizer training begins using a single pair of decision points for coefficient updating. After gross convergence of the equalizer coefficients is achieved the update broadens to include updating each of 24 decision points and the equalizer coefficients.
System And Method For Preventing Telephone Line Blocking By A Modem
View pageUS Patent:
7046773, May 16, 2006
Filed:
Oct 19, 2004
Appl. No.:
10/967964
Inventors:
Mark Gonikberg - Los Altos Hills CA, US
Assignee:
Broadcom Corporation - Irvine CA
International Classification:
H04M 11/00
US Classification:
379 9328, 379 9305, 375222
Abstract:
A modem includes a Digital Access Arrangement (DAA) Circuit and modem software that is executed by a processor. When the DAA Circuit detects that the modem software is nonfunctional, it enters an on-hook state to prevent blocking of a coupled telephone line. A nonfunctional state of the modem software is detected when the modem software ceases to interact with the DAA Circuit in an expected manner. In a first operation, the nonfunctional state is determined when the modem software does not reset a count down timer in the DAA Circuit before the count down timer reaches a termination value. In a second operation, the nonfunctional state is determined when the modem software does not access the DAA Circuit before the count down timer reaches the termination value. In a third operation, the nonfunctional state is determined when the modem software ceases writing transmit data to DMA memory.