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For the Inventor, By the Inventor

Sollentuna, Sweden

Charilaos Christopoulos

This inventor holds 10 USPTO granted patents and 1 EPO patent. Top assignee: Telefonaktiebolaget Lm Ericsson (Publ). Active years: 2003-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Charilaos Christopoulos. Retrieved from https://idiyas.com/inventor/charilaos-christopoulos

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 10

% Patents Active = 90.0


Average Co-Inventor Count = 2.6

ph-index = 7

Forward Citations = 242(Granted Patents)


Company Filing History:

goldMedal10 out of 27,011 
 
Telefonaktiebolaget Lm Ericsson (Publ)
 patents

Years Active: 2003-2009

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10 patents (USPTO):Explore Patents
1. 7571382 - Partial retrieval of images in the compressed domain (2009-08-04),
2. 7388913 - Down scaling of images (2008-06-17),
3. 7143171 - Access point discovery and selection (2006-11-28),
4. 7085425 - Embedded DCT-based still image coding algorithm (2006-08-01),
5. 6961754 - Interactive access, manipulation, sharing and exchange of multimedia data (2005-11-01),
6. 6868188 - Efficient down-scaling of DCT compressed images (2005-03-15),
7. 6804405 - Method and a system for coding rois (2004-10-12),
8. 6775412 - Lossless region of interest coding (2004-08-10),
9. 6690725 - Method and a system for generating summarized video (2004-02-10),
10. 6526099 - Transcoder (2003-02-25),

Title: Charilaos Christopoulos: Innovator in Image Processing Technologies

Introduction

Charilaos Christopoulos is a notable inventor based in Sollentuna, Sweden. He has made significant contributions to the field of image processing, holding a total of 10 patents. His work focuses on enhancing the efficiency of image retrieval and processing systems.

Latest Patents

One of his latest patents is titled "Partial retrieval of images in the compressed domain." This invention describes a method and system for retrieving images in a client-server architecture, where images are stored as independently decodable units on the server. The client can issue requests for image information without the server needing to store any state information. This innovative approach allows for faster processing, as the server does not require full decoding of the bit stream, significantly saving time.

Another notable patent is related to "Down scaling of images." This invention utilizes a Discrete Cosine Transform (DCT) for an entire original sequence, leveraging DCT coefficients from both halves of the sequence. This method is particularly useful in scenarios where hardware and software support DCT calculations of varying lengths, making it applicable in still image and video transcoding, as well as scalable image and video coding.

Career Highlights

Charilaos Christopoulos is currently employed at Telefonaktiebolaget LM Ericsson (Publ), a leading telecommunications company. His role involves developing advanced technologies that enhance image processing capabilities, contributing to the company's innovative solutions in the telecommunications sector.

Collaborations

Throughout his career, Charilaos has collaborated with esteemed colleagues, including David Nister and Athanasios Skodras. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Charilaos Christopoulos stands out as a prominent inventor in the realm of image processing technologies. His patents reflect a commitment to advancing the efficiency and effectiveness of image retrieval systems. His contributions continue to influence the field and inspire future innovations.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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