Company Filing History:

8 out of 35,658

Nec Corporation

Years Active: 1993-2002

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6393058 - Moving picture coding system having a quantizer controlled in accordance with amount of motion between successsive frames (2002-05-21),

2. 6119140 - Two-dimensional inverse discrete cosine transform circuit and (2000-09-12),

3. 5964824 - Two-dimensional IDCT circuit with input adder out output shifter for (1999-10-12),

4. 5917736 - Two-dimensional inverse-discrete cosine transform circuit (1999-06-29),

5. 5721589 - Moving picture coding apparatus which calculates an optimum quantization (1998-02-24),

6. 5515114 - Motion-vector detection apparatus for a video signal (1996-05-07),

7. 5396292 - Encoding apparatus for motion video signals (1995-03-07),

8. 5258836 - Encoding of motion picture signal (1993-11-02),

9. 5177608 - Method and apparatus for coding moving image signal (1993-01-05),

Title: Eri Murata: Innovator in Moving Picture Coding Systems

Introduction

Eri Murata is a prominent inventor based in Tokyo, Japan, known for her significant contributions to the field of moving picture coding systems. With a total of nine patents to her name, she has made remarkable advancements in the technology that enhances the quality and efficiency of video coding.

Latest Patents

Among her latest patents is a moving picture coding system that features a quantizer controlled according to the amount of motion between successive frames. This innovative system improves the coding of moving pictures by determining whether the frames prioritize motion smoothness or image clarity. The quantization variation value, which indicates the change in quantization step size between frames, is calculated to optimize the coding process. Another notable patent involves an 8x8 two-dimensional discrete inverse cosine transform circuit, which includes advanced arithmetic sections designed to enhance the efficiency of video processing.

Career Highlights

Eri Murata has worked with notable companies such as NEC Corporation, where she has honed her skills and contributed to various projects. Her work has been instrumental in developing technologies that are widely used in the industry today.

Collaborations

Throughout her career, Eri has collaborated with esteemed colleagues, including Ichiro Kuroda and Junichi Ohki. These partnerships have fostered innovation and have led to the successful development of her patented technologies.

Conclusion

Eri Murata's contributions to moving picture coding systems exemplify her dedication to innovation in technology. Her patents reflect her expertise and commitment to enhancing video processing, making her a significant figure in her field.

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