Company Filing History:

18 out of 35,658

Nec Corporation

patents

4 out of 77

Nec Home Electronics, Inc.

patents

where one patent can have more than one assignee

Years Active: 1987-1998

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18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5719628 - Video signal coding method and apparatus (1998-02-17),

2. 5534926 - Multiplex transmission method for motion picture signals and apparatus (1996-07-09),

3. 5483534 - Transmitting system having transmitting paths with low transmitting rates (1996-01-09),

4. 5453791 - Block matching type motion compensation encoder with controllable (1995-09-26),

5. 5361096 - Method and apparatus for multiplex transmission of video signals in a (1994-11-01),

6. 5177608 - Method and apparatus for coding moving image signal (1993-01-05),

7. 4985782 - Reproduction system capable of reproducing a still image by interrupting (1991-01-15),

8. 4970591 - Control of an encoding parameter according to a ratio of a moving (1990-11-13),

9. 4969039 - Image processing system operable in cooperation with a recording medium (1990-11-06),

10. 4942476 - Recording system for recording on a ROM image signal information which (1990-07-17),

11. 4931879 - Image processing system for recording or reproducing an image signal (1990-06-05),

12. 4887156 - Method and system for transform coding of video signals (1989-12-12),

13. 4851906 - Data compression using orthogonal transform and vector quantization (1989-07-25),

14. 4689673 - Movement compensation predictive encoder for a moving picture signal (1987-08-25),

15. 4689672 - Method and device of coding a digital video signal for reproduction of (1987-08-25),

Title: The Innovative Mind of Junichi Ohki

Introduction

Junichi Ohki is a prominent inventor based in Tokyo, Japan, recognized for his contributions to video signal coding technology. With a remarkable portfolio of 18 patents, Ohki continues to push the boundaries of innovation in his field, creating systems that enhance the efficiency and quality of video transmission.

Latest Patents

Among Junichi Ohki's latest patents are significant advancements in the realm of video signal processing. One notable patent details a "Video signal coding method and apparatus," which establishes an efficient coding system for interlaced video sequences. This innovative solution incorporates forced refreshing capabilities, where an input picture is divided into two fields. Certain lines in each field are designated for forced refreshing while others undergo interframe prediction coding. The controller and switching circuitry manage the refreshing process, optimizing video quality.

Another important patent is for a "Multiplex transmission method for motion picture signals and apparatus." This invention outlines a method to transmit motion picture signals effectively across channels with varying carrier frequencies. By encoding the input motion picture signal using inter-frame and intra-frame correlations, Ohki's system ensures that information output is efficiently managed, even under variable transmission conditions. This adaptive multiplexing allows for seamless distribution of encoded information across designated channels.

Career Highlights

Junichi Ohki has had an impactful career with notable tenures at NEC Corporation and NEC Home Electronics, Inc. His work in these companies has greatly influenced the development of advanced video technologies, enabling higher quality video experiences for consumers. His numerous patents attest to his expertise and dedication to innovation in the tech industry.

Collaborations

Throughout his career, Ohki has collaborated with various talented individuals. Among his esteemed coworkers are Toshio Koga and Mutsumi Ohta, both of whom have contributed to the development of significant technologies in their own right. These collaborations have played a vital role in the evolution of the projects undertaken by Ohki, fostering a spirit of innovation and teamwork.

Conclusion

Junichi Ohki exemplifies the spirit of invention, with a successful career dedicated to enhancing video signal technology. His innovative patents not only reflect his ingenuity but also serve as a foundation for future advancements in the field. As he continues to work and innovate, Ohki undoubtedly remains a significant figure in the realm of technology and invention.

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