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Ricky K Cheung

from San Diego, CA
Age ~50
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Also known as:
Ricky Chueng, Ricky Chevng
Related to:
Benny Yu Cheung, 51Kin Chan, 74Kin M Chan, 68Joyce L Chan, 39C CheungHar Chan Fung, 76Cheuk Wing CheungCarlos K Cheung, 33Mei Cheung, 47Doris L Chan, 37Kinko Iizumi, 76
Connected to:
Alaura L Cheung, 32Alben Cheung, 35Andrew Y Cheung, 46Bing F Cheung, 104Canon K Cheung, 43Clinton CheungCoral Cheung, 51Elly Cheung, 55Emy C Cheung, 98Jaime Y Cheung, 44

Ricky Cheung Phones & Addresses

  • San Diego, CA
  • Millbrae, CA
  • San Francisco, CA
  • Vallejo, CA

Resumes

Resumes

Ricky Cheung Photo 1

Chief Technology Officer

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Location:
Carlsbad, CA
Industry:
Semiconductors
Work:
Tensorcom
Chief Phy Architect
Marvell Semiconductor 2000 - 2004
Senior Design Engineer
2000 - 2004
Chief Technology Officer
Education:
Stanford University 1998 - 2000
Master of Science, Masters, Electrical Engineering Mcgill University 1995 - 1998
Bachelor of Engineering, Bachelors, Electrical Engineering, Engineering
Skills:
Asic
Soc
Verilog
Ic
Semiconductors
Fpga
Integrated Circuit Design
Wireless
Signal Processing
Algorithms
Vhdl
Matlab
Debugging
Rtl Design
Wireless Technologies
System on A Chip
Integrated Circuits
Lte
Wifi
Circuit Design
Application Specific Integrated Circuits
Very Large Scale Integration
Field Programmable Gate Arrays
C
Hardware Architecture
Perl
System Architecture
Computer Architecture
Umts
Eda
Vlsi
Simulations
Wimax
Cmos
Mobile Devices
Electrical Engineering
Ricky Cheung Photo 2

Ricky Cheung

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Location:
330 Beverly Ave, Millbrae, CA 94030
Industry:
Financial Services
Languages:
English
Mandarin
Ricky Cheung Photo 3

Ricky Cheung

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Work:
Bendix International 1969 - 1986
Accounting Supervisor
Ricky Cheung Photo 4

Ricky Cheung

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Ricky Cheung Photo 5

Ricky Cheung

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Ricky Cheung Photo 6

Ricky Cheung

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Ricky Cheung Photo 7

Ricky Cheung

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Ricky Cheung Photo 8

Ricky Cheung

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Location:
United States

Business Records

Name / Title
Company / Classification
Phones & Addresses
Ricky Cheung
Managing
37 Degree Dessert Cafe II, LLC
Dessert Cafe
1155 Taraval St, San Francisco, CA 94116

Publications

Us Patents

Decoding Method And Apparatus

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US Patent:
7606296, Oct 20, 2009
Filed:
Jun 11, 2007
Appl. No.:
11/811513
Inventors:
Yungping Hsu - Saratoga CA, US
Nelson Xu - Cupertino CA, US
Ricky Cheung - Stanford CA, US
Assignee:
Marvell International Ltd. - Hamilton
International Classification:
H04B 1/69
H04B 1/713
US Classification:
375150, 375148, 375149, 375325
Abstract:
A decoder comprises an equalizer that receives a modulated signal comprising a plurality of symbols including a first symbol defined by a first number of chips. A subsymbol processor that generates a subsymbol waveform after receiving a second number of chips of the first symbol and before at least one of receiving, decoding, and deciding the first number of chips of the first symbol. The second number is less than the first number, and wherein the equalizer equalizes the modulated signal using the subsymbol waveform.

Method And Apparatus For Determining Signal Quality

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US Patent:
7701871, Apr 20, 2010
Filed:
Jan 28, 2008
Appl. No.:
12/011568
Inventors:
Yungping Hsu - Cupertino CA, US
Ricky Cheung - Stanford CA, US
Assignee:
Marvell International Ltd. - Hamilton
International Classification:
H04L 12/56
H04L 1/16
US Classification:
370252, 370208, 370342
Abstract:
A method comprises determining maximum and next-maximum correlation candidates for a symbol of a modulated signal, calculating a scalar relationship between the maximum and next-maximum correlation candidates, deriving signal quality associated with the modulated signal based on the scalar relationship, and altering a characteristic based on the derived signal quality.

Decoding Method And Apparatus

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US Patent:
7746925, Jun 29, 2010
Filed:
Sep 27, 2006
Appl. No.:
11/528037
Inventors:
Yungping Hsu - Saratoga CA, US
Nelson Xu - Cupertino CA, US
Ricky Cheung - San Jose CA, US
Assignee:
Marvell International Ltd. - Hamilton
International Classification:
H03H 7/30
H03K 5/159
US Classification:
375233, 375234, 375235, 375236
Abstract:
A feedback equalizer includes a summing unit having an output and first input for receiving a modulated signal, which includes a symbol defined by a first number of chips. A subsymbol processor is coupled to the output of the summing unit. The symbol processor is capable of generating a subsymbol waveform upon receipt of a second number of chips of the symbol. The second number is less than the first number. A feedback filter is coupled to a second input of the summing unit and the symbol processing unit to selectively filter the subsymbol waveform from the modulated signal.

Decoding Method And Apparatus

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US Patent:
8059707, Nov 15, 2011
Filed:
Jun 29, 2010
Appl. No.:
12/825738
Inventors:
Yungping Hsu - Saratoga CA, US
Nelson Xu - Cupertino CA, US
Ricky Cheung - Stanford CA, US
Assignee:
Marvell International Ltd. - Hamilton
International Classification:
H03H 7/34
H03K 5/159
US Classification:
375233, 375234, 375235, 375236
Abstract:
A decoding unit for decoding a modulated signal includes a summing unit having i) a first input, ii) a second input, and iii) an output. The summing unit is configured to i) receive the modulated signal at the first input, ii) receive a feedback signal at the second input, and iii) output a first waveform based on the modulated signal and the feedback signal. A demodulation unit has a first demodulation pathway and a second demodulation pathway. The demodulation unit is configured to i) select between the first demodulation pathway and the second demodulation pathway, ii) receive and demodulate the modulated signal with the first demodulation pathway, and iii) receive and demodulate the first waveform with the second demodulation pathway. The remodulation unit is configured to selectively i) output a first complex waveform based on the modulated signal, and ii) output a subsymbol waveform of the first waveform.

Decoding Method And Apparatus

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US Patent:
7263119, Aug 28, 2007
Filed:
Feb 21, 2002
Appl. No.:
10/080826
Inventors:
Yungping Hsu - Cupertino CA, US
Nelson Xu - Cupertino CA, US
Ricky Cheung - Stanford CA, US
Assignee:
Marvell International Ltd. - Hamilton
International Classification:
H04B 1/69
H04B 1/713
US Classification:
375150, 375148, 375149, 375233, 375234, 4552771
Abstract:
Techniques and instrumentalities to improve ISI and ICI cancellation in reception of modulated symbols by selectively decoding subsymbols of such modulated symbol before they can be completely decided or perceived as well as use of decoded symbol/subsymbol information in the feedback equalization process are disclosed. In particular, a decoder and corresponding method are disclosed which includes a feedback equalizer capable of receiving a modulated signal including a symbol defined by a first number of chips, along with a subsymbol processor to generate a subsymbol waveform upon receipt of a second number, less than the first number, of chips of such symbol and provide the subsymbol waveform to the feedback equalizer in order to equalize the modulated signal using the subsymbol waveform. Other disclosed aspects including techniques and instrumentalities for improving reception performance when symbols encoded by different modulation schemes are encountered, as well as feedback equalization for Barker encoded symbols present in the received signal.

Method And Apparatus For Determining Signal Quality

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US Patent:
7324433, Jan 29, 2008
Filed:
Mar 21, 2002
Appl. No.:
10/105130
Inventors:
Yungping Hsu - Cupertino CA, US
Ricky Cheung - Stanford CA, US
Assignee:
Marvell International Ltd. - Hamilton
International Classification:
H04J 11/00
US Classification:
370208, 370342, 370479, 375142, 375150
Abstract:
The present invention is directed to a method, program product, and apparatus that determines a signal quality associated with a symbol modulated signal based on a scalar relationship based on at least one of a comparison of plural correlation candidates for a symbol in the modulated signal or a comparison of the vector corresponding to a decided symbol against a reference. In accordance with one aspect of the present invention, a method and apparatus are disclosed which involve determining maximum and next-maximum correlation candidates for a symbol perceived in the modulated signal, calculating the scalar relationship between the maximum and next-maximum correlation candidates, and deriving a signal quality associated with the modulated signal based on the scalar relationship. In accordance with another aspect of the present invention, a method and apparatus are disclosed which involve determining a decided symbol for the symbol perceived in the modulated signal, calculating a scalar relationship between a vector corresponding to the decided symbol and a reference, and deriving a signal quality associated with the modulated signal based on the scalar relationship. In accordance with either of these aspects, the derived signal quality can be used to alter one or more receiver characteristics of a receiver used to capture the modulated signal.
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Ricky K Cheung from San Diego, CA, age ~50 Get Report