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For the Inventor, By the Inventor

Austin, TX, United States of America

Ray Chang

USPTO Granted Patents = 17


Average Co-Inventor Count = 2.7

ph-index = 10

Forward Citations = 416(Granted Patents)


Company Filing History:

goldMedal17 out of 20,290 
 
Motorola Corporation
 patents

Years Active: 1991-2002

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17 patents (USPTO):Explore Patents
1. 6385101 - Programmable delay control for sense amplifiers in a memory (2002-05-07),
2. 6157583 - Integrated circuit memory having a fuse detect circuit and method (2000-12-05),
3. 6111796 - Programmable delay control for sense amplifiers in a memory (2000-08-29),
4. 6108266 - Memory utilizing a programmable delay to control address buffers (2000-08-22),
5. 6031775 - Dynamic sense amplifier in a memory capable of limiting the voltage (2000-02-29),
6. 5978286 - Timing control of amplifiers in a memory (1999-11-02),
7. 5670815 - Layout for noise reduction on a reference voltage (1997-09-23),
8. 5610543 - Delay locked loop for detecting the phase difference of two signals (1997-03-11),
9. 5477176 - Power-on reset circuit for preventing multiple word line selections (1995-12-19),
10. 5440515 - Delay locked loop for detecting the phase difference of two signals (1995-08-08),
11. 5440514 - Write control for a memory using a delay locked loop (1995-08-08),
12. 5422848 - ECL-to-CMOS buffer having a single-sided delay (1995-06-06),
13. 5384737 - Pipelined memory having synchronous and asynchronous operating modes (1995-01-24),
14. 5268863 - Memory having a write enable controlled word line (1993-12-07),
15. 5258951 - Memory having output buffer enable by level comparison and method (1993-11-02),

Title: Ray Chang: Innovator in Memory Technology

Introduction

Ray Chang is a prominent inventor based in Austin, TX, known for his significant contributions to memory technology. With a total of 17 patents to his name, he has made a lasting impact in the field of integrated circuits and memory systems.

Latest Patents

One of Ray Chang's latest patents is titled "Programmable delay control for sense amplifiers in a memory." This invention involves a memory system that utilizes sense amplifiers to provide data onto global data lines, which are then received by secondary amplifiers. The sense amplifiers and secondary amplifiers are enabled by clocks that are timed by programmable delay circuits. These delays are programmed by delay selection circuits that ensure optimal access time for the memory. Another notable patent is "Integrated circuit memory having a fuse detect circuit and method." This patent describes a system that includes a copper fuse and a fuse state detect stage for monitoring the state of the fuse. The fuse detect circuit operates during the power-up of the integrated circuit memory and helps mitigate potential electro-migration problems by limiting voltage drop across a blown fuse.

Career Highlights

Ray Chang has worked with notable companies such as Motorola Corporation and VLSI Technology, Inc. His experience in these organizations has contributed to his expertise in memory technology and integrated circuits.

Collaborations

Throughout his career, Ray has collaborated with esteemed colleagues, including Stephen T. Flannagan and Kenneth W. Jones. These collaborations have further enriched his work and innovations in the field.

Conclusion

Ray Chang's contributions to memory technology through his patents and collaborations highlight his role as a leading inventor in the industry. His work continues to influence advancements in integrated circuits and memory systems.

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