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For the Inventor, By the Inventor

Hong Kong, China

Kam Chuen Wan

USPTO Granted Patents = 10

Average Co-Inventor Count = 4.0

ph-index = 6

Forward Citations = 120(Granted Patents)


Company Filing History:

goldMedal10 out of 583 
 
Hong Kong Applied Science and Technology Research Institute Company, Limited
 patents

Years Active: 2009-2018

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10 patents (USPTO):Explore Patents
1. 10103742 - Multi-stage hybrid analog-to-digital converter (2018-10-16),
2. 8421658 - Parallel pipelined calculation of two calibration values during the prior conversion cycle in a successive-approximation-register analog-to-digital converter (SAR-ADC) (2013-04-16),
3. 8416107 - Charge compensation calibration for high resolution data converter (2013-04-09),
4. 8258864 - Ultra low voltage multi-stage high-speed CMOS comparator with autozeroing (2012-09-04),
5. 8193854 - Bi-directional trimming methods and circuits for a precise band-gap reference (2012-06-05),
6. 7812757 - Hybrid analog-to-digital converter (ADC) with binary-weighted-capacitor sampling array and a sub-sampling charge-redistributing array for sub-voltage generation (2010-10-12),
7. 7795976 - Slew-rate-enhanced error amp with adaptive transconductance and single dominant pole shared by main and auxiliary amps (2010-09-14),
8. 7710094 - Current-mode-controlled current sensor circuit for power switching converter (2010-05-04),
9. 7656240 - Low voltage synchronous oscillator for DC-DC converter (2010-02-02),
10. 7538597 - Fuse cell and method for programming the same (2009-05-26),

Title: Innovations of Kam Chuen Wan

Introduction

Kam Chuen Wan is a prominent inventor based in Hong Kong, CN. He has made significant contributions to the field of analog-to-digital conversion technology. With a total of 10 patents to his name, Wan continues to push the boundaries of innovation in his field.

Latest Patents

One of his latest patents is a Multi-stage Hybrid Analog-to-Digital Converter. This innovative ADC features multiple stages, where the first and final stages utilize a Successive-Approximation Register (SAR) ADC to generate the Most-Significant-Bits (MSBs) and the Least-Significant-Bits (LSBs) over successive internal cycles. The middle stages employ a faster flash ADC with multiple comparators in parallel to produce the middle binary bits. These bits are then re-converted by a Digital-to-Analog Converter (DAC) and subtracted from the input analog voltage, generating a difference that is amplified by a residual amplifier. This design achieves a hybrid ADC with 14-bit precision. Another notable patent involves parallel pipelined calculation of two calibration values during the conversion cycle in a SAR-ADC. This method predicts compensation values for future cycles, significantly reducing calculation delays and enhancing the efficiency of the conversion process.

Career Highlights

Kam Chuen Wan is associated with the Hong Kong Applied Science and Technology Research Institute Company, Limited. His work at this institution has allowed him to collaborate with other talented individuals in the field, further advancing the technology of analog-to-digital converters.

Collaborations

Some of his notable coworkers include Yat To (William) Wong. Their collaborative efforts have contributed to the development of innovative solutions in their respective areas of expertise.

Conclusion

Kam Chuen Wan's contributions to the field of analog-to-digital conversion technology are noteworthy. His innovative patents and collaborative work continue to influence advancements in this critical area of technology.

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