Koon Wong resumes & CV records
Resumes
Koon Wong
Koon Wong
Koon Yin Wong, 641239 Ahtena Dr, Walnut, CA 91789
Koon Wong Phones & Addresses
1239 Ahtena Dr, Walnut, CA 91789 909-5957387
El Monte, CA
San Gabriel, CA
Downey, CA
8128 Tom Sawyer Dr, Tampa, FL 33637 813-9857949
11905 N 52Nd St, Temple Terr, FL 33617
Temple Terrace, FL
Saint Petersburg, FL
Los Angeles, CA
Mentions for Koon Yin Wong
Publications & IP owners
Us Patents
Architecture For Write Pre-Compensation
US Patent:
2008018, Aug 7, 2008
Filed:
May 11, 2007
Appl. No.:
11/803098
Inventors:
Koon Lun Wong - Irvine CA, US
Assignee:
Broadcom Corporation, a California Corporation - Irvine CA
International Classification:
G11B 5/596
US Classification:
360 7704
Abstract:
An architecture to compensate for the non-linear effects of magnetic media, such as magnetic disk drives, that distorts data transitions when data is written to the media and in which the non-linear distortion is data sequence dependent. In one technique a circuit is used to alter the data transitions to cancel the effects of the transition distortion. The circuit employs selected delays that that based on the data sequence to adjust the transition edge of bits of the data to provide the pre-compensation before data is written to the disk.
Combination Of Analog And Digital Feedback For Adaptive Slew Rate Control
US Patent:
2009028, Nov 26, 2009
Filed:
May 22, 2008
Appl. No.:
12/153692
Inventors:
Koon Lun Wong - Irvine CA, US
Assignee:
Broadcom Corporation - Irvine CA
International Classification:
H03K 5/13
US Classification:
327232
Abstract:
An apparatus for scaling a load device with frequency in a phase interpolator can include an analog loop and a digital loop. The load device of the phase interpolator can include a transistor and a plurality of resistors selectively configured in parallel with the transistor. The analog loop controls a resistance of the transistor based on a voltage applied to a control terminal of the transistor. For instance, the analog loop can tune the resistance of a PMOS device by adjusting a voltage applied to the PMOS device's gate terminal. In addition, the analog loop can include a comparator to compare a voltage across the transistor to a reference voltage such that an optimal voltage is maintained for an output swing of the phase interpolator. The analog loop can also include a low pass filter coupled to an output of the comparator to define frequency stability and loop bandwidth of the analog loop. The digital loop operates in conjunction with the analog loop and controls the plurality of resistors by incrementing or decrementing a number of resistors that are configured in parallel with the transistor in the load device. In combining the analog and digital loops to control the load device of the phase interpolator, this configuration takes advantage of the wide tuning range of the digital control and the smooth, continuous output of the analog control. Further, in operating the analog and digital loops in conjunction with each other, the present invention avoids a long observation time in locking the system, as seen in conventional designs, while guaranteeing frequency stability in the operation of both the analog and digital loops.
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